subject:(Spiders)

McGill University

1. Manuel, Raymond Lewis. The biology of Frontinella pyramitela (Walckenaer, 1841) (Arachnida : Linyphiidae) with special reference to predation.

Degree: MS, Department of Entomology, 1974, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile48536.pdf

Subjects/Keywords: Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Manuel, R. L. (1974). The biology of Frontinella pyramitela (Walckenaer, 1841) (Arachnida : Linyphiidae) with special reference to predation. (Masters Thesis). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile48536.pdf

Chicago Manual of Style (16^th Edition):

Manuel, Raymond Lewis. “The biology of Frontinella pyramitela (Walckenaer, 1841) (Arachnida : Linyphiidae) with special reference to predation.” 1974. Masters Thesis, McGill University. Accessed August 19, 2019. http://digitool.library.mcgill.ca/thesisfile48536.pdf.

MLA Handbook (7^th Edition):

Manuel, Raymond Lewis. “The biology of Frontinella pyramitela (Walckenaer, 1841) (Arachnida : Linyphiidae) with special reference to predation.” 1974. Web. 19 Aug 2019.

Vancouver:

Manuel RL. The biology of Frontinella pyramitela (Walckenaer, 1841) (Arachnida : Linyphiidae) with special reference to predation. [Internet] [Masters thesis]. McGill University; 1974. [cited 2019 Aug 19]. Available from: http://digitool.library.mcgill.ca/thesisfile48536.pdf.

Council of Science Editors:

Manuel RL. The biology of Frontinella pyramitela (Walckenaer, 1841) (Arachnida : Linyphiidae) with special reference to predation. [Masters Thesis]. McGill University; 1974. Available from: http://digitool.library.mcgill.ca/thesisfile48536.pdf

Oregon State University

2. Hill, David Edwin. The structure of the central nervous system of jumping spiders of the genus Phidippus (Araneae:Salticidae).

Degree: MS, Zoology, 1975, Oregon State University

URL: http://hdl.handle.net/1957/44510

► The central nervous system of Phidippus, while comparable to that of other spiders in most respects, is distinguished by the extraordinary development of visual processing… (more)

▼ The central nervous system of Phidippus, while comparable to that of other spiders in most respects, is distinguished by the extraordinary development of visual processing centers, associated with the complex visually-directed behavior of these animals. The primary neuropile of the anterior medial eyes consists of two distinct columnar synapsing regions. There is some evidence that the geometry of this structure may correspond to the arrangement of receptors in the anterior medial eyes. First-order interneurons link this primary neuropile with a less structured, massive secondary neuropile at the top of the syncerebrum. The optic nerve fibers of each lateral eye synapse in a convoluted primary neuropile. Two distinct first order interneuron types join this neurcroile to a lateral eye neuropile and the protocerebrum on one hand, and to the glomerular layer of the corpora pedunculata on the other. Each of these interneurons branches to form two separate synapsing regions in the primary neuropile. The small optic nerve of the posterior medial eyes synapses in a glomerular neuropile. Large interneuron fibers associated with this neuropile lead to the protocerebrum. This structure suggests a special role for information provided by the posterior medial eyes, perhaps in the regulation of diurnal activity patterns. In the corpora pedunculata, intrinsic fibers synapse anteriorly with first-order interneurons of the lateral eyes, and form linear fibers bearing numerous synaptic glomeruli in the pedunculus. The latter is the site of extensive synapsing with extrinsic fibers. The corpora pedunculata are considered to be secondary visual centers, quite possibly concerned with directed orientation to visual stimuli. In structure they are the analogs, rather than the homologs, of similar structures observed in annelids and in other arthropods. This distinction supports the separation of the Chelicerata from the latter groups. The structure of the central body agrees with its accepted role as either a major association center, or as the source of complex programmed behavior. Advisors/Committee Members: Bayne, Christopher J. (advisor).

Subjects/Keywords: Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hill, D. E. (1975). The structure of the central nervous system of jumping spiders of the genus Phidippus (Araneae:Salticidae). (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/44510

Chicago Manual of Style (16^th Edition):

Hill, David Edwin. “The structure of the central nervous system of jumping spiders of the genus Phidippus (Araneae:Salticidae).” 1975. Masters Thesis, Oregon State University. Accessed August 19, 2019. http://hdl.handle.net/1957/44510.

MLA Handbook (7^th Edition):

Hill, David Edwin. “The structure of the central nervous system of jumping spiders of the genus Phidippus (Araneae:Salticidae).” 1975. Web. 19 Aug 2019.

Vancouver:

Hill DE. The structure of the central nervous system of jumping spiders of the genus Phidippus (Araneae:Salticidae). [Internet] [Masters thesis]. Oregon State University; 1975. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1957/44510.

Council of Science Editors:

Hill DE. The structure of the central nervous system of jumping spiders of the genus Phidippus (Araneae:Salticidae). [Masters Thesis]. Oregon State University; 1975. Available from: http://hdl.handle.net/1957/44510

Michigan State University

3. Vail, Harry David, 1943-. Spiders associated with dwellings in Michigan with special emphasis on the predatory behavior of Chiricanthium inclusum Hentz (araneae: clubionidae).

Degree: PhD, Department of Zoology, 1974, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:5922

Subjects/Keywords: Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vail, Harry David, 1. (1974). Spiders associated with dwellings in Michigan with special emphasis on the predatory behavior of Chiricanthium inclusum Hentz (araneae: clubionidae). (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:5922

Chicago Manual of Style (16^th Edition):

Vail, Harry David, 1943-. “Spiders associated with dwellings in Michigan with special emphasis on the predatory behavior of Chiricanthium inclusum Hentz (araneae: clubionidae).” 1974. Doctoral Dissertation, Michigan State University. Accessed August 19, 2019. http://etd.lib.msu.edu/islandora/object/etd:5922.

MLA Handbook (7^th Edition):

Vail, Harry David, 1943-. “Spiders associated with dwellings in Michigan with special emphasis on the predatory behavior of Chiricanthium inclusum Hentz (araneae: clubionidae).” 1974. Web. 19 Aug 2019.

Vancouver:

Vail, Harry David 1. Spiders associated with dwellings in Michigan with special emphasis on the predatory behavior of Chiricanthium inclusum Hentz (araneae: clubionidae). [Internet] [Doctoral dissertation]. Michigan State University; 1974. [cited 2019 Aug 19]. Available from: http://etd.lib.msu.edu/islandora/object/etd:5922.

Council of Science Editors:

Vail, Harry David 1. Spiders associated with dwellings in Michigan with special emphasis on the predatory behavior of Chiricanthium inclusum Hentz (araneae: clubionidae). [Doctoral Dissertation]. Michigan State University; 1974. Available from: http://etd.lib.msu.edu/islandora/object/etd:5922

Michigan State University

4. Drew, Leslie Clinton. The spider fauna of Baker Woodlot and vicinity, Michigan State University, including life histories.

Degree: MS, 1957, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:7347

Subjects/Keywords: Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Drew, L. C. (1957). The spider fauna of Baker Woodlot and vicinity, Michigan State University, including life histories. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:7347

Chicago Manual of Style (16^th Edition):

Drew, Leslie Clinton. “The spider fauna of Baker Woodlot and vicinity, Michigan State University, including life histories.” 1957. Masters Thesis, Michigan State University. Accessed August 19, 2019. http://etd.lib.msu.edu/islandora/object/etd:7347.

MLA Handbook (7^th Edition):

Drew, Leslie Clinton. “The spider fauna of Baker Woodlot and vicinity, Michigan State University, including life histories.” 1957. Web. 19 Aug 2019.

Vancouver:

Drew LC. The spider fauna of Baker Woodlot and vicinity, Michigan State University, including life histories. [Internet] [Masters thesis]. Michigan State University; 1957. [cited 2019 Aug 19]. Available from: http://etd.lib.msu.edu/islandora/object/etd:7347.

Council of Science Editors:

Drew LC. The spider fauna of Baker Woodlot and vicinity, Michigan State University, including life histories. [Masters Thesis]. Michigan State University; 1957. Available from: http://etd.lib.msu.edu/islandora/object/etd:7347

Michigan State University

5. Sherman, Robert G. The origin of the heartbeat in the spider Geolycosa missouriensis.

Degree: MS, Dept. of Zoology, 1967, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:11494

Subjects/Keywords: Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sherman, R. G. (1967). The origin of the heartbeat in the spider Geolycosa missouriensis. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:11494

Chicago Manual of Style (16^th Edition):

Sherman, Robert G. “The origin of the heartbeat in the spider Geolycosa missouriensis.” 1967. Masters Thesis, Michigan State University. Accessed August 19, 2019. http://etd.lib.msu.edu/islandora/object/etd:11494.

MLA Handbook (7^th Edition):

Sherman, Robert G. “The origin of the heartbeat in the spider Geolycosa missouriensis.” 1967. Web. 19 Aug 2019.

Vancouver:

Sherman RG. The origin of the heartbeat in the spider Geolycosa missouriensis. [Internet] [Masters thesis]. Michigan State University; 1967. [cited 2019 Aug 19]. Available from: http://etd.lib.msu.edu/islandora/object/etd:11494.

Council of Science Editors:

Sherman RG. The origin of the heartbeat in the spider Geolycosa missouriensis. [Masters Thesis]. Michigan State University; 1967. Available from: http://etd.lib.msu.edu/islandora/object/etd:11494

Michigan State University

6. Olive, Cader Wesley. Foraging specializations in orb-weaving spider.

Degree: PhD, Department of Zoology, 1979, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:42179

Subjects/Keywords: Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Olive, C. W. (1979). Foraging specializations in orb-weaving spider. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:42179

Chicago Manual of Style (16^th Edition):

Olive, Cader Wesley. “Foraging specializations in orb-weaving spider.” 1979. Doctoral Dissertation, Michigan State University. Accessed August 19, 2019. http://etd.lib.msu.edu/islandora/object/etd:42179.

MLA Handbook (7^th Edition):

Olive, Cader Wesley. “Foraging specializations in orb-weaving spider.” 1979. Web. 19 Aug 2019.

Vancouver:

Olive CW. Foraging specializations in orb-weaving spider. [Internet] [Doctoral dissertation]. Michigan State University; 1979. [cited 2019 Aug 19]. Available from: http://etd.lib.msu.edu/islandora/object/etd:42179.

Council of Science Editors:

Olive CW. Foraging specializations in orb-weaving spider. [Doctoral Dissertation]. Michigan State University; 1979. Available from: http://etd.lib.msu.edu/islandora/object/etd:42179

Montana Tech

7. Ricards, David Raynor. An investigation of the ecology of the wolf spider Pardosa groenlandica th. (Araneae Lycosidae).

Degree: MA, 1967, Montana Tech

URL: https://scholarworks.umt.edu/etd/6730

Subjects/Keywords: Wolf spiders.; Spiders.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ricards, D. R. (1967). An investigation of the ecology of the wolf spider Pardosa groenlandica th. (Araneae Lycosidae). (Masters Thesis). Montana Tech. Retrieved from https://scholarworks.umt.edu/etd/6730

Chicago Manual of Style (16^th Edition):

Ricards, David Raynor. “An investigation of the ecology of the wolf spider Pardosa groenlandica th. (Araneae Lycosidae).” 1967. Masters Thesis, Montana Tech. Accessed August 19, 2019. https://scholarworks.umt.edu/etd/6730.

MLA Handbook (7^th Edition):

Ricards, David Raynor. “An investigation of the ecology of the wolf spider Pardosa groenlandica th. (Araneae Lycosidae).” 1967. Web. 19 Aug 2019.

Vancouver:

Ricards DR. An investigation of the ecology of the wolf spider Pardosa groenlandica th. (Araneae Lycosidae). [Internet] [Masters thesis]. Montana Tech; 1967. [cited 2019 Aug 19]. Available from: https://scholarworks.umt.edu/etd/6730.

Council of Science Editors:

Ricards DR. An investigation of the ecology of the wolf spider Pardosa groenlandica th. (Araneae Lycosidae). [Masters Thesis]. Montana Tech; 1967. Available from: https://scholarworks.umt.edu/etd/6730

8. Anderson, Alissa G. Color change and ecology in female Misumenoides formosipes crab spiders.

Degree: Thesis (M.S.), 2013, Ball State University

URL: http://cardinalscholar.bsu.edu/handle/123456789/197143

► Female Misumenoides formosipes crab spiders, unlike their highly mobile, short-lived male counterparts, are relatively sedentary predators that forage long after the males have died off.… (more)

Subjects/Keywords: Crab spiders – Ecology; Crab spiders – Color

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Anderson, A. G. (2013). Color change and ecology in female Misumenoides formosipes crab spiders. (Masters Thesis). Ball State University. Retrieved from http://cardinalscholar.bsu.edu/handle/123456789/197143

Chicago Manual of Style (16^th Edition):

Anderson, Alissa G. “Color change and ecology in female Misumenoides formosipes crab spiders.” 2013. Masters Thesis, Ball State University. Accessed August 19, 2019. http://cardinalscholar.bsu.edu/handle/123456789/197143.

MLA Handbook (7^th Edition):

Anderson, Alissa G. “Color change and ecology in female Misumenoides formosipes crab spiders.” 2013. Web. 19 Aug 2019.

Vancouver:

Anderson AG. Color change and ecology in female Misumenoides formosipes crab spiders. [Internet] [Masters thesis]. Ball State University; 2013. [cited 2019 Aug 19]. Available from: http://cardinalscholar.bsu.edu/handle/123456789/197143.

Council of Science Editors:

Anderson AG. Color change and ecology in female Misumenoides formosipes crab spiders. [Masters Thesis]. Ball State University; 2013. Available from: http://cardinalscholar.bsu.edu/handle/123456789/197143

Cornell University

9. Cardillo, Marissa. Developmental Differences Between Social And Solitary Spiders: Why Do Social But Not Solitary Huntsman Spiders Have An Extra Non-Feeding Instar? .

Degree: 2015, Cornell University

URL: http://hdl.handle.net/1813/40978

► The physiological bases for major ontogenetic differences in developmental patterns of closely related social and solitary huntsman spiders (Sparassidae: Deleninae) were explored in two social… (more)

Subjects/Keywords: Spiders; Metabolism; Development

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cardillo, M. (2015). Developmental Differences Between Social And Solitary Spiders: Why Do Social But Not Solitary Huntsman Spiders Have An Extra Non-Feeding Instar? . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/40978

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cardillo, Marissa. “Developmental Differences Between Social And Solitary Spiders: Why Do Social But Not Solitary Huntsman Spiders Have An Extra Non-Feeding Instar? .” 2015. Thesis, Cornell University. Accessed August 19, 2019. http://hdl.handle.net/1813/40978.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cardillo, Marissa. “Developmental Differences Between Social And Solitary Spiders: Why Do Social But Not Solitary Huntsman Spiders Have An Extra Non-Feeding Instar? .” 2015. Web. 19 Aug 2019.

Vancouver:

Cardillo M. Developmental Differences Between Social And Solitary Spiders: Why Do Social But Not Solitary Huntsman Spiders Have An Extra Non-Feeding Instar? . [Internet] [Thesis]. Cornell University; 2015. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1813/40978.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cardillo M. Developmental Differences Between Social And Solitary Spiders: Why Do Social But Not Solitary Huntsman Spiders Have An Extra Non-Feeding Instar? . [Thesis]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/40978

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Macquarie University

10. Peckmezian, Tina. Jumping spiders as a model system for comparative visual cognition.

Degree: 2016, Macquarie University

URL: http://hdl.handle.net/1959.14/1161200

►

Thesis by publication.

1. Introduction – 2. Electric shock for aversion training of jumping spiders: towards an arachnid model of avoidance learning – 3. Factors… (more)

▼

Thesis by publication.

1. Introduction – 2. Electric shock for aversion training of jumping spiders: towards an arachnid model of avoidance learning – 3. Factors influencing place avoidance learning and memory in a jumping spider – 4. Jumping spiders ignore predictive visual information in an active avoidance conditioning task – 5. A virtual reality paradigm for the study of visually mediated behaviour and cognition in spiders – 6. Visual working memory in jumping spiders: an expectancy violation paradigm in virtual reality – 7. General discussion – Appendices.

Uncertainty is a common feature of the natural world. Associative learning, which enables animals to form predictive relationships between contingent events, reduces uncertainty and equips animals to respond adaptively. Associative learning is widespread across the animal kingdom, and has been particularly well characterized in a few key invertebrate model taxa. Invertebrates exhibit a broad repertoire of associative learning abilities, have significant molecular overlap with vertebrate systems, and are considerably more amenable to analyses at cellular and behavioural levels. Jumping spiders (Salticidae) - and arachnids as a whole - have been underrepresented in the comparative cognition literature but possess many traits that make them suitable and interesting models. The principle aim of this thesis was to begin to bridge the gap between spiders and traditional invertebrate model taxa. To do so, I developed methods that permitted rigorous and repeatable analysis of cognitive processes, and assessed how salticids integrate different sources of information during learning and meVmory. My research focuses on an Australian salticid, Servaea incana, but the methods and principles developed here should be relevant to other cursorial arachnids or invertebrates in which vision is well developed. I develop a novel method to produce electric shock platforms that is precise, easy to use, and highly repeatable, and isolate the changes in mobility and behaviour that are dependent on shock. Additionally, to overcome the constraints of commonly used playback methods, I develop an immersive, closed-loop virtual reality system tailored for studies of salticid cognition. Using passive and active avoidance conditioning assays coupled with the aversive electric shock stimulus, and a change detection paradigm in virtual reality, I characterize the critical determinants of learning and memory in salticids. These experiments reveal that the ecological relevance, or ‘salience’ of available visual cues, together with hunger level and the temporal nature of the training protocol, play a significant role in determining performance. At the same time, when spiders are provided with a number of cues predicting an aversive event, they learn an operant escape response while ignoring reliable visual information. These results are very surprising given the extent to which vision is known to mediate behaviour and decision making in jumping spiders.

1 online…

Advisors/Committee Members: Macquarie University. Department of Biological Sciences.

Subjects/Keywords: Jumping spiders – Research; Jumping spiders – Behavior; Spiders – Behavior; Salticidae; associative learning in spiders; cognition in spiders; memory; attention

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Peckmezian, T. (2016). Jumping spiders as a model system for comparative visual cognition. (Doctoral Dissertation). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/1161200

Chicago Manual of Style (16^th Edition):

Peckmezian, Tina. “Jumping spiders as a model system for comparative visual cognition.” 2016. Doctoral Dissertation, Macquarie University. Accessed August 19, 2019. http://hdl.handle.net/1959.14/1161200.

MLA Handbook (7^th Edition):

Peckmezian, Tina. “Jumping spiders as a model system for comparative visual cognition.” 2016. Web. 19 Aug 2019.

Vancouver:

Peckmezian T. Jumping spiders as a model system for comparative visual cognition. [Internet] [Doctoral dissertation]. Macquarie University; 2016. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1959.14/1161200.

Council of Science Editors:

Peckmezian T. Jumping spiders as a model system for comparative visual cognition. [Doctoral Dissertation]. Macquarie University; 2016. Available from: http://hdl.handle.net/1959.14/1161200

Portland State University

11. Brandt, Erin. Externally-Expressed Fluorescence across Sexes, Life Stages, and Species of Spiders.

Degree: MS(M.S.) in Biology, Biology, 2012, Portland State University

URL: https://pdxscholar.library.pdx.edu/open_access_etds/893

► Although all spiders possess fluorophores in their hemolymph, the expression of external fluorescence is much more restricted. The purpose of this study was to… (more)

▼ Although all spiders possess fluorophores in their hemolymph, the expression of external fluorescence is much more restricted. The purpose of this study was to evaluate differences in externally-expressed fluorescence between sexes, life stages, and species of spiders. To approach this question, we developed novel instrumentation to capture fluorescence with photographs of our specimens. We paired these fluorescence measurements with spectrometer measurements to attempt to determine the role that fluorescence plays in the overall coloration in spiders. The study was divided into four sections. First, we examined how fluorescence varies in sexes and life stages in Misumena vatia, an ambush predator that typically preys on insects when they are on flowers. We found that adult females possess brighter external fluorescence than males in all body areas that we measured. We also found that external fluorescence remains relatively similar through life stages in females, but darkens over the course of a male's life. It is likely that the differences between males and females relate to differences in feeding ecology. External fluorescence may contribute to a visual signal allowing females to visually blend in with flowers. The second study involved a series of experiments to determine whether freezing spiders at a temperature of -80°C affects their fluorescence intensity. In spiders considered “white thomisids”, fluorescence intensity increased after freezing, whereas fluorescence brightness in darker-pigmented spiders did not change to any similar extent. It seems likely that tissue trauma due to freezing is the cause of increased fluorescence intensity after freezing. The third study examined fluorescence brightness across ages and life stages of Araneus diadematus, a spider which is exposed to the sun, but builds large webs in which to snare prey. We found that, unlike M. vatia, adult males are the more brightly fluorescent sex, with adult females and all immature life stages possessing significantly less bright external fluorescence. It is unclear why these differences exist, but differences in ecology between adult males and all other life stages could play a role. Additionally, dim fluorescence may contribute to subtle patterning and/or convey photoprotection benefits to immatures and adult females. In the final study, we examined external fluorescence across the Thomisidae family. Because of a relatively large number of species with a small sample size, we divided them into “white” and “dark” thomisids based on taxonomy and what is known about ecology. The white thomisids tend to be prey on insects on the exposed surfaces of flowers, whereas dark thomisids more often reside in leaf litter and crevices. We found that white thomisids fluoresce more brightly than dark thomisids. There were no differences between the sexes in either group, however. The differences between white and dark thomisids may be related to differences in feeding ecology, whereas males and females of the same group tend to have similar… Advisors/Committee Members: Susan Masta.

Subjects/Keywords: Spiders – Fluorescence; Spiders – Ecophysiology; Spiders – Physiology; Biology; Entomology; Other Animal Sciences; Zoology

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Brandt, E. (2012). Externally-Expressed Fluorescence across Sexes, Life Stages, and Species of Spiders. (Masters Thesis). Portland State University. Retrieved from https://pdxscholar.library.pdx.edu/open_access_etds/893

Chicago Manual of Style (16^th Edition):

Brandt, Erin. “Externally-Expressed Fluorescence across Sexes, Life Stages, and Species of Spiders.” 2012. Masters Thesis, Portland State University. Accessed August 19, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/893.

MLA Handbook (7^th Edition):

Brandt, Erin. “Externally-Expressed Fluorescence across Sexes, Life Stages, and Species of Spiders.” 2012. Web. 19 Aug 2019.

Vancouver:

Brandt E. Externally-Expressed Fluorescence across Sexes, Life Stages, and Species of Spiders. [Internet] [Masters thesis]. Portland State University; 2012. [cited 2019 Aug 19]. Available from: https://pdxscholar.library.pdx.edu/open_access_etds/893.

Council of Science Editors:

Brandt E. Externally-Expressed Fluorescence across Sexes, Life Stages, and Species of Spiders. [Masters Thesis]. Portland State University; 2012. Available from: https://pdxscholar.library.pdx.edu/open_access_etds/893

Macquarie University

12. McGinley, Rowan H. Fighting strategies and mechanisms behind contest resolution in the jumping spider Servaea incana.

Degree: 2015, Macquarie University

URL: http://hdl.handle.net/1959.14/1137732

►

Thesis by publication.

"This thesis is presented for the degree of Doctor of Philosophy".

1. General introduction – 2. Natural history and display behaviour of… (more)

▼

Thesis by publication.

"This thesis is presented for the degree of Doctor of Philosophy".

1. General introduction – 2. Natural history and display behaviour of Servaea incana, a common and widespread Australian jumping spider (Araneae, Salticidae) – 3. Seasonal variation in sexual opportunities of Servaea incana jumping spiders – 4. Assessment strategies and decision-making in male-male contests of Servaea incana jumping spiders – 5. Video playback experiments support a role for visual assessment of opponent size in male-male contests of Servaea incana jumping spiders – 6. Hunger influences behaviour but not outcome in male-male contests of Servaea incana jumping spiders – 7. Whole-organism performance in a jumping spider, Servaea incana (Araneae: Salticidae): links with morphology and between performance traits – 8. General discussion – Appendices.

Contests over limited resources are commonplace and widespread across animal taxa. Rather than unconstrained fighting, animals are expected to adopt strategies designed to reduce contest costs. One such strategy is mutual assessment, where each rival performs ritualised signals of fighting ability or resource holding potential (RHP), allowing animals to economically determine which is weaker. However, as assessment itself may also be costly or difficult, an alternative strategy to limit the costs associated with contests may be for rivals to persist until they reach an internal cost-threshold. Each strategy allows for determination of the winner while limiting the costs of fighting. Jumping spiders, with their excellent vision, elaborate displays and dangerous weapons present excellent models for the study of decision making in animal contests. In this thesis I describe the biolgy of the jumping spider Servaea incana and examine the decision rules used in the male-male contests. Size is a strong predictor of contest outcome and also of whole-organism performance capacity. Correlations between size and levels of contest escalation suggest that smaller spiders are less willing to escalate, regardless of opponent size, and this suggests use of internal thresholds rather than mutual assessment. Video playback experiments reveal that visual assessment of opponent size may influence the decision to display towards or approach an opponent. Hunger may also influence contest behaviour; hungry spiders are more likely to attack conspecifics and may be more likely to engage in contests. The potential for injury, or even death, may explain the unwillingness of small spiders to engage in escalated contests.

1 online resource (vii, 238 pages) colour illustrations

Advisors/Committee Members: Macquarie University. Department of Biological Sciences.

Subjects/Keywords: Spiders – Australia – Behaviour; Jumping spiders – Australia; Jumping spiders – Behavior; contests; salticidae; mutual assessment; self-assessment

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McGinley, R. H. (2015). Fighting strategies and mechanisms behind contest resolution in the jumping spider Servaea incana. (Doctoral Dissertation). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/1137732

Chicago Manual of Style (16^th Edition):

McGinley, Rowan H. “Fighting strategies and mechanisms behind contest resolution in the jumping spider Servaea incana.” 2015. Doctoral Dissertation, Macquarie University. Accessed August 19, 2019. http://hdl.handle.net/1959.14/1137732.

MLA Handbook (7^th Edition):

McGinley, Rowan H. “Fighting strategies and mechanisms behind contest resolution in the jumping spider Servaea incana.” 2015. Web. 19 Aug 2019.

Vancouver:

McGinley RH. Fighting strategies and mechanisms behind contest resolution in the jumping spider Servaea incana. [Internet] [Doctoral dissertation]. Macquarie University; 2015. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1959.14/1137732.

Council of Science Editors:

McGinley RH. Fighting strategies and mechanisms behind contest resolution in the jumping spider Servaea incana. [Doctoral Dissertation]. Macquarie University; 2015. Available from: http://hdl.handle.net/1959.14/1137732

The Ohio State University

13. Tripp, John Rathbone. The descriptive embryogeny and post-embryogeny of the mygalomorph spider, Antrodiaetus unicolor.

Degree: PhD, Graduate School, 1970, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486659302581197

Subjects/Keywords: Biology; Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tripp, J. R. (1970). The descriptive embryogeny and post-embryogeny of the mygalomorph spider, Antrodiaetus unicolor. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1486659302581197

Chicago Manual of Style (16^th Edition):

Tripp, John Rathbone. “The descriptive embryogeny and post-embryogeny of the mygalomorph spider, Antrodiaetus unicolor.” 1970. Doctoral Dissertation, The Ohio State University. Accessed August 19, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486659302581197.

MLA Handbook (7^th Edition):

Tripp, John Rathbone. “The descriptive embryogeny and post-embryogeny of the mygalomorph spider, Antrodiaetus unicolor.” 1970. Web. 19 Aug 2019.

Vancouver:

Tripp JR. The descriptive embryogeny and post-embryogeny of the mygalomorph spider, Antrodiaetus unicolor. [Internet] [Doctoral dissertation]. The Ohio State University; 1970. [cited 2019 Aug 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486659302581197.

Council of Science Editors:

Tripp JR. The descriptive embryogeny and post-embryogeny of the mygalomorph spider, Antrodiaetus unicolor. [Doctoral Dissertation]. The Ohio State University; 1970. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486659302581197

Oregon State University

14. Tachella, Ramsey. Design and Development of a Salticid Inspired Jumping Robot.

Degree: MS, Robotics, 2016, Oregon State University

URL: http://hdl.handle.net/1957/59358

► The ability to jump allows small robots to traverse rough terrain, clear large obstacles, and quickly reach elevated locations. These abilities have applications in a… (more)

Subjects/Keywords: Robotics; Jumping spiders – Jumping

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tachella, R. (2016). Design and Development of a Salticid Inspired Jumping Robot. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/59358

Chicago Manual of Style (16^th Edition):

Tachella, Ramsey. “Design and Development of a Salticid Inspired Jumping Robot.” 2016. Masters Thesis, Oregon State University. Accessed August 19, 2019. http://hdl.handle.net/1957/59358.

MLA Handbook (7^th Edition):

Tachella, Ramsey. “Design and Development of a Salticid Inspired Jumping Robot.” 2016. Web. 19 Aug 2019.

Vancouver:

Tachella R. Design and Development of a Salticid Inspired Jumping Robot. [Internet] [Masters thesis]. Oregon State University; 2016. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1957/59358.

Council of Science Editors:

Tachella R. Design and Development of a Salticid Inspired Jumping Robot. [Masters Thesis]. Oregon State University; 2016. Available from: http://hdl.handle.net/1957/59358

University of Hawaii

15. Suman, Theodore William. Spiders of the family Thomisidae in Hawaii.

Degree: PhD, 2009, University of Hawaii

URL: http://hdl.handle.net/10125/11444

Typescript.

Bibliography: leaves [183]-186.

xi, 262 l illus., maps, tables

Subjects/Keywords: Crab spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Suman, T. W. (2009). Spiders of the family Thomisidae in Hawaii. (Doctoral Dissertation). University of Hawaii. Retrieved from http://hdl.handle.net/10125/11444

Chicago Manual of Style (16^th Edition):

Suman, Theodore William. “Spiders of the family Thomisidae in Hawaii.” 2009. Doctoral Dissertation, University of Hawaii. Accessed August 19, 2019. http://hdl.handle.net/10125/11444.

MLA Handbook (7^th Edition):

Suman, Theodore William. “Spiders of the family Thomisidae in Hawaii.” 2009. Web. 19 Aug 2019.

Vancouver:

Suman TW. Spiders of the family Thomisidae in Hawaii. [Internet] [Doctoral dissertation]. University of Hawaii; 2009. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/10125/11444.

Council of Science Editors:

Suman TW. Spiders of the family Thomisidae in Hawaii. [Doctoral Dissertation]. University of Hawaii; 2009. Available from: http://hdl.handle.net/10125/11444

University of Tasmania

16. Gilroy, Lisa. The feasibility of using computer-based treatment for specific phobia ; A controlled comparison of computer-based vicarious exposure versus live exposure in the treatment of spider phobia.

Degree: 1999, University of Tasmania

URL: https://eprints.utas.edu.au/19698/1/whole_GilroyLisa1999_thesis.pdf

► LITERATURE REVIEW An important goal in clinical psychology is the development of safe, cost effective, widely available treatment strategies. This review targets a particular problem,… (more)

▼ LITERATURE REVIEW An important goal in clinical psychology is the development of safe, cost effective, widely available treatment strategies. This review targets a particular problem, specific phobia, as a reference point in exploring the feasibility of using computers in delivering behavioural treatment for anxiety disorders. This review summaries conventional treatment methods, and evaluates their efficacy and availability. It addresses the advantages as well as the ethical and technical limitations of the use of computers in delivering psychological treatments and reviews current developments and outcome studies. It is concluded that although computer-based treatments are still in their infancy, significant advances have been made in establishing such strategies as an effective, safe and efficient treatment for phobias. Further research to establish computer-based behavioural treatment as a comparable alternative to therapist-directed live exposure for phobias, will allow the efficacy of computer-based treatment to be accurately weighed against the ethical issues. EMPIRICAL STUDY The purpose of this study was to examine the efficacy of a computer-based vicarious exposure treatment for spider phobia compared to the standard treatment, therapist-directed live exposure. A total of 45 participants diagnosed with specific phobia (spiders) were included in the study following assessment. Participants were randomly assigned to one of three treatment conditions: computer-based treatment, therapist-directed live exposure treatment or a relaxation placebo treatment. Each treatment group received three 45 minute sessions. Phobic symptomatology was measured at pre treatment and post treatment and at a three month follow-up by the Spider Questionnaire, Fear Questionnaire, Phobic Targets and Work Adjustment Scale and a Behavioural Assessment Test. The results showed that the computer-based treatment was an effective treatment for spider phobia and comparable to therapist-directed live exposure, in producing a significant improvement on all relevant measures of phobic symptomatology. Both the computer-based and live exposure treatments were more effective than the relaxation placebo treatment. The computer-based treatment required substantially less therapist time than that of the live exposure treatment and was rated by participants as a helpful and acceptable treatment. These finding warrant the further development of the computer-based techniques in treating phobic disorders.

Subjects/Keywords: Spiders; Phobias

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gilroy, L. (1999). The feasibility of using computer-based treatment for specific phobia ; A controlled comparison of computer-based vicarious exposure versus live exposure in the treatment of spider phobia. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/19698/1/whole_GilroyLisa1999_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gilroy, Lisa. “The feasibility of using computer-based treatment for specific phobia ; A controlled comparison of computer-based vicarious exposure versus live exposure in the treatment of spider phobia.” 1999. Thesis, University of Tasmania. Accessed August 19, 2019. https://eprints.utas.edu.au/19698/1/whole_GilroyLisa1999_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gilroy, Lisa. “The feasibility of using computer-based treatment for specific phobia ; A controlled comparison of computer-based vicarious exposure versus live exposure in the treatment of spider phobia.” 1999. Web. 19 Aug 2019.

Vancouver:

Gilroy L. The feasibility of using computer-based treatment for specific phobia ; A controlled comparison of computer-based vicarious exposure versus live exposure in the treatment of spider phobia. [Internet] [Thesis]. University of Tasmania; 1999. [cited 2019 Aug 19]. Available from: https://eprints.utas.edu.au/19698/1/whole_GilroyLisa1999_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gilroy L. The feasibility of using computer-based treatment for specific phobia ; A controlled comparison of computer-based vicarious exposure versus live exposure in the treatment of spider phobia. [Thesis]. University of Tasmania; 1999. Available from: https://eprints.utas.edu.au/19698/1/whole_GilroyLisa1999_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

17. Shamble, Paul. Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders .

Degree: 2015, Cornell University

URL: http://hdl.handle.net/1813/41002

► This thesis explores the ecology, behavior, and sensory neurobiology of jumping spiders (Araneae: Salticidae). The first section (Chapters 1 and 2) investigates antmimicry by the… (more)

Subjects/Keywords: Jumping spiders; Ant-mimicry; Neuroethology

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shamble, P. (2015). Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/41002

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shamble, Paul. “Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders .” 2015. Thesis, Cornell University. Accessed August 19, 2019. http://hdl.handle.net/1813/41002.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shamble, Paul. “Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders .” 2015. Web. 19 Aug 2019.

Vancouver:

Shamble P. Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders . [Internet] [Thesis]. Cornell University; 2015. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1813/41002.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shamble P. Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders . [Thesis]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/41002

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Oregon

18. Burris, Zair P. Larval Types, Courtship and Mating Behaviors, and the Costs Associated with Exclusive Male Parental Care in the Sea Spider Achelia Simplissima (Pycnogonida).

Degree: 2010, University of Oregon

URL: http://hdl.handle.net/1794/10818

► In all species of pycnogonids (sea spiders) males care exclusively for the offspring, making this group essential for studies on sex roles, sexual selection, and… (more)

Subjects/Keywords: Pycnogonida – Behavior; Sea spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Burris, Z. P. (2010). Larval Types, Courtship and Mating Behaviors, and the Costs Associated with Exclusive Male Parental Care in the Sea Spider Achelia Simplissima (Pycnogonida). (Thesis). University of Oregon. Retrieved from http://hdl.handle.net/1794/10818

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Burris, Zair P. “Larval Types, Courtship and Mating Behaviors, and the Costs Associated with Exclusive Male Parental Care in the Sea Spider Achelia Simplissima (Pycnogonida).” 2010. Thesis, University of Oregon. Accessed August 19, 2019. http://hdl.handle.net/1794/10818.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Burris, Zair P. “Larval Types, Courtship and Mating Behaviors, and the Costs Associated with Exclusive Male Parental Care in the Sea Spider Achelia Simplissima (Pycnogonida).” 2010. Web. 19 Aug 2019.

Vancouver:

Burris ZP. Larval Types, Courtship and Mating Behaviors, and the Costs Associated with Exclusive Male Parental Care in the Sea Spider Achelia Simplissima (Pycnogonida). [Internet] [Thesis]. University of Oregon; 2010. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1794/10818.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Burris ZP. Larval Types, Courtship and Mating Behaviors, and the Costs Associated with Exclusive Male Parental Care in the Sea Spider Achelia Simplissima (Pycnogonida). [Thesis]. University of Oregon; 2010. Available from: http://hdl.handle.net/1794/10818

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

19. Klee, George Edwin, 1944-. Studies on seasonal abundance and ecology of Michigan Opiliones.

Degree: MS, Dept. of Entomology, 1968, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:11588

Subjects/Keywords: Opiliones; Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Klee, George Edwin, 1. (1968). Studies on seasonal abundance and ecology of Michigan Opiliones. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:11588

Chicago Manual of Style (16^th Edition):

Klee, George Edwin, 1944-. “Studies on seasonal abundance and ecology of Michigan Opiliones.” 1968. Masters Thesis, Michigan State University. Accessed August 19, 2019. http://etd.lib.msu.edu/islandora/object/etd:11588.

MLA Handbook (7^th Edition):

Klee, George Edwin, 1944-. “Studies on seasonal abundance and ecology of Michigan Opiliones.” 1968. Web. 19 Aug 2019.

Vancouver:

Klee, George Edwin 1. Studies on seasonal abundance and ecology of Michigan Opiliones. [Internet] [Masters thesis]. Michigan State University; 1968. [cited 2019 Aug 19]. Available from: http://etd.lib.msu.edu/islandora/object/etd:11588.

Council of Science Editors:

Klee, George Edwin 1. Studies on seasonal abundance and ecology of Michigan Opiliones. [Masters Thesis]. Michigan State University; 1968. Available from: http://etd.lib.msu.edu/islandora/object/etd:11588

Texas A&M University

20. Henderson, Takesha Yvonne. Diversity,distribution, and abundance of ground dwelling spiders at Lick Creek Park, College Station, Texas.

Degree: 2009, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-1929

► Lick Creek Park is a 515 acre nature park that was acquired in 1987 by the City of College Station, Texas. The site has a… (more)

▼ Lick Creek Park is a 515 acre nature park that was acquired in 1987 by the City of College Station, Texas. The site has a variety of indigenous plant and animal species and is an important natural resource for citizens of the region. There is a long-term commitment to inventory this natural park to monitor the changes as our urban community expands to surround the park. There are 989 species of spiders currently recorded from Texas and 332 of them are known to occur in Brazos County. My focus was on improving the ground spider inventory at Lick Creek Park. Spider collections were made using 18 regularly-sampled pitfall traps distributed evenly among three habitats. Spiders from 24 families, 66 genera, and 111 species were identified from 918 specimens, including 627 immature and 291 adult spiders, captured in pitfall traps from April 2005-April 2006. Of the 111 species found, 45 were represented by one specimen only and 20 were represented by two specimens. Rarefaction analyses indicated that the majority of spider species were readily detectable using pitfall traps and inventoried during this study (111 found and 168 estimated to be present). Simpson?s Diversity measure bootstrap estimates determined species diversity overall to be very diverse (0.966), as did a Shannon Weiner Diversity bootstrap estimate (5.483). Also, Simpson?s measure of species evenness (0.264) indicated a low species evenness. Those species found in only one habitat comprised 50% of the total species, and their densities ranged from 1-5 individuals. Those species found in just two habitats comprised 25% of the total species, and their densities ranged from 2-21 individuals. Species found in all three habitats comprised the remaining 25%, and their densities ranged from 4-53 individuals found. Most species occurred at low densities in this study and this often precluded conducting more detailed analyses. Additional sampling is expected to, first, detect known species occurring in previously unrecorded habitats and, second, to detect species not previously found in the park. This inventory of spiders at Lick Creek will provide a basis for further studies on biodiversity and the assessment of human impact on the environment. Advisors/Committee Members: Harris,Marvin K. (advisor), Jackman,John (committee member), Winemiller, Kirk O. (committee member).

Subjects/Keywords: spider ecology; spider diversity; spiders; ground spiders; spider occurring habitats

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Henderson, T. Y. (2009). Diversity,distribution, and abundance of ground dwelling spiders at Lick Creek Park, College Station, Texas. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1929

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Henderson, Takesha Yvonne. “Diversity,distribution, and abundance of ground dwelling spiders at Lick Creek Park, College Station, Texas.” 2009. Thesis, Texas A&M University. Accessed August 19, 2019. http://hdl.handle.net/1969.1/ETD-TAMU-1929.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Henderson, Takesha Yvonne. “Diversity,distribution, and abundance of ground dwelling spiders at Lick Creek Park, College Station, Texas.” 2009. Web. 19 Aug 2019.

Vancouver:

Henderson TY. Diversity,distribution, and abundance of ground dwelling spiders at Lick Creek Park, College Station, Texas. [Internet] [Thesis]. Texas A&M University; 2009. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1929.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Henderson TY. Diversity,distribution, and abundance of ground dwelling spiders at Lick Creek Park, College Station, Texas. [Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1929

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Technology, Sydney

21. Chong, Youmie. Characterisation of novel insecticidal ion channel toxins from araneomorph and mygalomorph spider venoms.

Degree: 2011, University of Technology, Sydney

URL: http://hdl.handle.net/10453/23403

► The high potency and selectivity of various peptide neurotoxins within spider venoms means these toxins are being considered as leads for the development of new… (more)

▼ The high potency and selectivity of various peptide neurotoxins within spider venoms means these toxins are being considered as leads for the development of new environmentally-benign biopesticides that target pest insects. Currently, the ω-HXTX family of 37-residue arthropod-selective peptide neurotoxins from Australian hexathelid spider venoms are considered a prime candidate for biopesticide development. ω-HXTX-Hv1a, a prototypic member of the ω-HXTX-1 family, was electrophysiologically characterised by voltage-clamp analysis using the whole-cell patch-clamp technique on cockroach dorsal unpaired median (DUM) neurons. ω-HXTX-Hv1a exerted a reversible, concentration-dependent, voltage-independent block of barium currents (/Ba) through mid-low voltage-activated (M-LVA) and high voltage-activated (HVA) voltage-activated calcium (Caᵥ) channels without alteration in the activation or inactivation kinetics of the Caᵥ channel. To improve the structural stability of this disulfide-rich peptide under biologically reducing conditions, and thereby increase its commercial viability, a synthetic ω-HXTX-Hv1a mutant was produced with the replacement of one disulfide bond with a Sec1,4 diselenide bridge. The selenocysteine mutant had comparable oral activity to the native toxin in blowflies and there was no significant difference between the native and diselenide toxin in terms of block of M-LVA and HVA Caᵥ channels. This demonstrated that selenocysteine substitution had the potential to improve peptide stability without altering the biological activity of the toxin. There is a continuous need to identify novel insecticidal peptide toxins for biopesticide development. By screening the venom of mygalomorph Sydney funnel-web (Atrax robustus) and Eastern mouse (Missulena bradleyi) spiders; two novel insect-selective peptide neurotoxins were isolated: ω-HXTX-Ar1a from A. robustus is a homolog of ω-HXTX-Hv1a, and ω-AOTX-Mb1a from M. bradleyi has up to 59% homology with the ω-HXTX family. In acute toxicity tests in house crickets, these neurotoxins induced potent neuroexcitatory symptoms followed by paralysis and death. Vertebrate nerve-muscle preparations showed that the toxins lacked overt vertebrate toxicity at concentrations up to 1 μM. To further characterise the molecular target of ω-HXTX-Ar1a and ω-AOTX-Mb1a on insects, whole-cell patch-clamp experiments were undertaken on cockroach DUM neurons. ω-HXTX-Ar1a induced a reversible, and the ω-AOTX-Mb1a an irreversible, block of both M-LVA and HVA Caᵥ channels. The level of block was concentration-dependent and occurred in the absence of alterations in the voltage-dependence of Caᵥ channel activation. The block was voltage-independent, suggesting that these toxins are Caᵥ channel pore blockers rather than channel gating modifiers. Both ω-HXTX-Ar1a and ω-AOTX-Mb1a are promising biopesticide candidates and their activity on M-LVA and HVA Caᵥ channels validates insect Caᵥ channels as a novel molecular target for insecticides. Apart from their insecticidal properties, spider venom…

Subjects/Keywords: Poisonous spiders.; Venom.; Australia.; Funnel-web spiders.; Insecticides.; Biological control.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chong, Y. (2011). Characterisation of novel insecticidal ion channel toxins from araneomorph and mygalomorph spider venoms. (Thesis). University of Technology, Sydney. Retrieved from http://hdl.handle.net/10453/23403

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chong, Youmie. “Characterisation of novel insecticidal ion channel toxins from araneomorph and mygalomorph spider venoms.” 2011. Thesis, University of Technology, Sydney. Accessed August 19, 2019. http://hdl.handle.net/10453/23403.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chong, Youmie. “Characterisation of novel insecticidal ion channel toxins from araneomorph and mygalomorph spider venoms.” 2011. Web. 19 Aug 2019.

Vancouver:

Chong Y. Characterisation of novel insecticidal ion channel toxins from araneomorph and mygalomorph spider venoms. [Internet] [Thesis]. University of Technology, Sydney; 2011. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/10453/23403.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chong Y. Characterisation of novel insecticidal ion channel toxins from araneomorph and mygalomorph spider venoms. [Thesis]. University of Technology, Sydney; 2011. Available from: http://hdl.handle.net/10453/23403

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

22. Ruiz, Gustavo Rodrigo Sanches. Análise cladística de Dendryphantinae (Araneae: Salticidae).

Degree: PhD, Zoologia, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-28092010-133234/ ;

► Análise Cladística de Dendryphantinae (Araneae: Salticidae) Gustavo R.S. Ruiz Resumo Salticidae (jumping spiders) é a família de aranhas mais diversa, contendo 5.245 espécies descritas (Platnick,… (more)

▼ Análise Cladística de Dendryphantinae (Araneae: Salticidae) Gustavo R.S. Ruiz Resumo Salticidae (jumping spiders) é a família de aranhas mais diversa, contendo 5.245 espécies descritas (Platnick, 2010). A família é um dos poucos clados inquestionáveis dentro das aranhas, sendo caracterizada pelo par de olhos medianos anteriores bem desenvolvidos, que lhes permitem visão acurada e propiciam a evolução de comportamentos sexuais e estratégias de predação complexos. Apesar de sua monofilia, não há consenso sobre que grupo de aranhas seria o grupo-irmão dos salticídeos. Entretanto, espera-se que a posição filogenética das famílias do polifilético grupo Dionycha seja determinada em breve através dos estudos moleculares do projeto AToL. Embora pouco seja conhecido sobre as relações na base de Salticidae, trabalhos recentes sobre sua filogenia mostram que mais de 90% das espécies formam um único grande clado, os Salticoida, facilmente reconhecidos morfologicamente pela perda da unha tarsal dos palpos, entre outros caracteres. Dentro dos Salticoida, são reconhecidos atualmente três grandes clados. Um deles inclui os Astioida, as subfamílias Baviinae e Ballinae e os Marpissoida. O clado Marpissoida inclui as subfamílias Dendryphantinae, Marpissinae, Synagelinae e alguns gêneros pouco compreendidos, como Itata Peckham & Peckham. Dentre todos os salticídeos, a subfamília Dendryphantinae é um dos poucos grupos com limites bem estabelecidos, incluindo centenas de espécies com carenas na face retrolateral das quelíceras dos machos e palpos dos machos com êmbolos espirais reduzidos. Em geral, os machos também têm faixas longitudinais nas laterais da carapaça e abdômen, enquanto as fêmeas têm o dorso do abdômen marcado por pares de manchas escuras. As quelíceras e o primeiro par de pernas dos machos também são frequentemente robustos e alongados. Apesar de ser uma das maiores subfamílias de Salticidae, Dendryphantinae apresenta uma grande homogeneidade morfológica ao longo de todos seus subgrupos. A falta de caracteres diagnósticos para seus gêneros causou a descrição de um número indiscriminado de novos gêneros com limites pouco estabelecidos. Devido a isso, a classificação atual da subfamília encontra-se em um nível caótico e precisa ser revisada sob um ponto de vista filogenético. Em 2001, foi conduzida uma análise filogenética para a subfamília, utilizando dados moleculares, para investigar sua filogenia e evolução. A amostragem usada, entretanto, não permitiu muitas conclusões, e a posição de cerca de 30 gêneros de Dendryphantinae não incluídos nessa análise ainda é incerta. Baseando-se em uma filogenia mais inclusiva, problemas sobre a sistemática do grupo poderiam ser resolvidos; grupos naturais de gêneros poderiam ser revisados, permitindo sua simplificação e fácil reconhecimento. Devido à morfologia extremamente conservativa no grupo, dados moleculares são necessários para a reconstrução de sua filogenia. Os principais objetivos deste trabalho foi o seqüenciamento de quatro regiões de DNA (os nucleares 28S e Actina e os… Advisors/Committee Members: Brescovit, Antonio Domingos, Maddison, Wayne Paul.

Subjects/Keywords: Aranhas; Evolução; Evolution; Filogenia; Phylogeny; Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ruiz, G. R. S. (2010). Análise cladística de Dendryphantinae (Araneae: Salticidae). (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/41/41133/tde-28092010-133234/ ;

Chicago Manual of Style (16^th Edition):

Ruiz, Gustavo Rodrigo Sanches. “Análise cladística de Dendryphantinae (Araneae: Salticidae).” 2010. Doctoral Dissertation, University of São Paulo. Accessed August 19, 2019. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-28092010-133234/ ;.

MLA Handbook (7^th Edition):

Ruiz, Gustavo Rodrigo Sanches. “Análise cladística de Dendryphantinae (Araneae: Salticidae).” 2010. Web. 19 Aug 2019.

Vancouver:

Ruiz GRS. Análise cladística de Dendryphantinae (Araneae: Salticidae). [Internet] [Doctoral dissertation]. University of São Paulo; 2010. [cited 2019 Aug 19]. Available from: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-28092010-133234/ ;.

Council of Science Editors:

Ruiz GRS. Análise cladística de Dendryphantinae (Araneae: Salticidae). [Doctoral Dissertation]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-28092010-133234/ ;

23. Cabra García, Jimmy Jair. Revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae).

Degree: Mestrado, Zoologia, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-20032014-082237/ ;

►

A taxonomic revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 is presented. The analysis is based on a data set including 24… (more)

▼

A taxonomic revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 is presented. The analysis is based on a data set including 24 Glenognatha species plus eight outgroup representatives of three additional tetragnathine genera and one metaine, scored for 82 morphological characters. Eight unambiguous synapomorphies support the monophyly of Glenognatha, all free of homoplasy. Some internal clades within the genus are well-supported and its relationships are discussed. The genus Glenognatha has a broad distribution occupying the Neartic, Neotropic, Afrotropic, Indo-Malaya and Oceania ecozones. As revised here, Glenognatha comprises 27 species, four of them only know from males. New morphological data are provided for the description of thirteen previously described species. Eleven species are newly described: G. sp. nov. 1, G. sp. nov. 3, G. sp. nov. 4 and G. sp. nov. 7 from southeast Brazil, G. sp. nov. 6, G. sp. nov. 9 and G. sp. nov. 10 from the Amazonian region, G. sp. nov. 2, G. sp. nov. 5 and G. sp. nov. 8 from northern Andes and G. sp. nov. 11 from central Mexico and Southern United States. Females of G. minuta Banks, 1898, G. gaujoni Simon, 1895 and G. gloriae (Petrunkevitch, 1930) and males of G. globosa (Petrunkevitch, 1925) and G. hirsutissima (Berland, 1935) are described for the first time. Three new combinations are proposed in congruence with the phylogenetic results: G. argyrostilba (O. P.-Cambridge, 1876), G. dentata (Zhu & Wen, 1978) and G. tangi (Zhu, Song & Zhang, 2003), all previously included in Dyschiriognatha. The following taxa are newly synonymized: Dyschiriognatha montana Simon, 1897, Glenognatha mira Bryant, 1945 and Glenognatha maelfaiti Baert, 1987 with Glenognatha argyrostilba (O. P.-Cambridge, 1876) and Glenognatha centralis Chamberlin, 1925 with Glenognatha minuta Banks, 1898. A key to species of Glenognatha and distribution maps are provided.

A revisão taxonômica e análise cladística do gênero Glenognatha Simon, 1887 é apresentada. A análise é baseada em uma matriz que inclui 24 espécies de Glenognatha, oito representantes do grupo externo, incluindo três gêneros da subfamília Tetragnathinae e um de Metainae, e 82 caracteres morfológicos. Oito sinapomorfias não ambíguas sustentam a monofilia de Glenognatha, todas não homoplásticas. Alguns clados internos dentro do gênero são bem suportados e suas relações são discutidas. O gênero Glenognatha apresenta uma ampla distribuição ocupando as regiões Neártica, Neotropical, Afrotropical, Indo-Malaya, Australasia e Oceania. Vinte e sete espécies de Glenognatha são reconhecidas, quatro delas somente conhecidas por machos. Novos dados morfológicos são fornecidos para a descrição de treze espécies previamente conhecidas. Onze espécies novas são descritas: G. sp. nov. 1, G. sp. nov. 3, G. sp. nov. 4 e G. sp. nov. 7 do sudeste do Brasil, G. sp. nov. 6, G. sp. nov. 9 e G. sp. nov. 10 da região Amazônica, G. sp. nov. 2, G. sp. nov. 5 e G. sp. nov. 8 do norte da cordilheira dos Andes e G. sp. nov. 11 da região central do…

Advisors/Committee Members: Brescovit, Antonio Domingos.

Subjects/Keywords: Aranhas; Sistemática; Spiders; Systematics; Taxonomia; Taxonomy

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cabra García, J. J. (2013). Revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae). (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/41/41133/tde-20032014-082237/ ;

Chicago Manual of Style (16^th Edition):

Cabra García, Jimmy Jair. “Revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae).” 2013. Masters Thesis, University of São Paulo. Accessed August 19, 2019. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-20032014-082237/ ;.

MLA Handbook (7^th Edition):

Cabra García, Jimmy Jair. “Revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae).” 2013. Web. 19 Aug 2019.

Vancouver:

Cabra García JJ. Revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae). [Internet] [Masters thesis]. University of São Paulo; 2013. [cited 2019 Aug 19]. Available from: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-20032014-082237/ ;.

Council of Science Editors:

Cabra García JJ. Revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae). [Masters Thesis]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-20032014-082237/ ;

Durban University of Technology

24. Weston, Marion. A group analysis evaluation of the class Arachnida in terms of known materia medica.

Degree: 2010, Durban University of Technology

URL: http://hdl.handle.net/10321/575

►

Dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Homoeopathy, Durban University of Technology, 2010.

Two centuries ago it was… (more)

▼

Dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Homoeopathy, Durban University of Technology, 2010.

Two centuries ago it was possible to practice with only 100 remedies. Today with the constantly expanding materia medica, complexity itself tempts the homeopath to remain inside this range of remedies. It is due to the pioneering work of authors like Scholten (1993) and Sankaran (2005) that the vast materia medica of today can be summarized and understood through a method like group analysis which links naturally related substances via their common symptomatology. This not only offers new aspects to well known remedies, but highlights the smaller, not so well known remedies, resulting in a more comprehensive understanding of the materia medica. Relatively few homeopathic remedies derived from the Araneae order are extensively utilized for the homeopathic treatment of patients. Therefore the spider remedies represented in the literature of Mac Rep computer program® were subjected to the group analysis method in order to extend the overall knowledge of this particular group of homeopathic remedies. The spider remedies were first analyzed in terms of their quantitative representation in the repertory (amount of rubrics) and then a sample group was chosen. This selection was screened for common sensations using the above mentioned computer program. The significance of a common sensation was confirmed by cross-checking the materia medica of all16 homeopathic spider remedies listed in Mac Reference® computer software for its occurrence. The findings were interpreted within the backdrop of the established animal characteristics of homeopathic remedies (Sankaran, 2005:24-31). The primary sensations extracted and confirmed in the rest of the Araneae group were stinging, stitching, shooting, sensitive, sore, cold, faint, paralytic, twitching and full. Significant synonyms of the first order analysis were heaviness, spasm, cramp, numbness and weakness. Second order and third order analysis not only provided symptoms of the mind, but led to the proposed themes common in spider remedies. The majority of themes like hyperactivity, restlessness, increased sexuality, impulsive violence and aggression, the periodicity of complaints, heightened sensitivity to music and the love for dancing are comparable to Mangliavori’s (2004) clinical findings and to Sankaran’s (2005) proposed spider characteristics. A miasmatic differentiation of each member of the sample group was performed according to Sankaran’s extended miasmatic model (2005:7). Araneus diademus was found to belong to the sycotic- as well as malarial miasm, Latrodectus hasseltii to the syphilitic-, Loxoceles reclusa to the leprous- and Tarentula hispanica and Theridion curassavicum to the tubercular miasm. Pathological tendencies of the Araneae remedies were found to involve the nervous system, eyes, heart, muscular – skeletal system, sexual organs and…

Advisors/Committee Members: Ross, Ashley Hilton Adrian.

Subjects/Keywords: Homeopathy; Spiders; Homeopathy – Materia medica and therapeutics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Weston, M. (2010). A group analysis evaluation of the class Arachnida in terms of known materia medica. (Thesis). Durban University of Technology. Retrieved from http://hdl.handle.net/10321/575

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Weston, Marion. “A group analysis evaluation of the class Arachnida in terms of known materia medica.” 2010. Thesis, Durban University of Technology. Accessed August 19, 2019. http://hdl.handle.net/10321/575.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Weston, Marion. “A group analysis evaluation of the class Arachnida in terms of known materia medica.” 2010. Web. 19 Aug 2019.

Vancouver:

Weston M. A group analysis evaluation of the class Arachnida in terms of known materia medica. [Internet] [Thesis]. Durban University of Technology; 2010. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/10321/575.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Weston M. A group analysis evaluation of the class Arachnida in terms of known materia medica. [Thesis]. Durban University of Technology; 2010. Available from: http://hdl.handle.net/10321/575

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Miami University

25. Wilder, Shawn M. The Roles of Ecological and Phylogenetic Conditions in the Occurrence and Frequency of Sexual Cannibalism in Spiders.

Degree: PhD, Zoology, 2007, Miami University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=miami1196455109

► Sexual cannibalism, the consumption of a male by a female in the context of mating, is a dramatic form of sexual conflict that occurs in… (more)

▼ Sexual cannibalism, the consumption of a male by a female in the context of mating, is a dramatic form of sexual conflict that occurs in spiders and praying mantids. Among spiders, the frequency of sexual cannibalism is quite variable. However, no general hypotheses have emerged to explain variation in the frequency of sexual cannibalism among taxa. The goal of this dissertation was to explore ecological and phylogenetic factors that may be responsible for variation in the frequency of sexual cannibalism within and among species of spiders. I first review the literature to create a framework to describe how ecological (i.e. food and mate availability) and phylogenetic (i.e. genetic correlations, feeding mode, mating behavior and sexual size dimorphism) influence the frequency of sexual cannibalism. I then conducted three studies to test aspects of the framework that are poorly understood. I first tested how food quality affects female aggression towards males in the wolf spider, Pardosa milvina. Females fed nutrient-supplemented prey items were more likely to attack males and engage in sexual cannibalism, which is contrary to the predictions. I also tested the role of mate availability (e.g. exposure or mating) on sexual cannibalism in Hogna helluo. While exposure to the opposite sex had few effects, mating status of males and females affected sexual cannibalism. Finally, I examined the role of sexual size dimorphism (SSD) for the frequency of sexual cannibalism within and among species of spiders. In H. helluo, females were much more likely to cannibalize the male when the degree of SSD was large. The same pattern held among species, with a higher frequency of sexual cannibalism in species with high degrees of SSD. The results of these studies and evidence in published literature suggest that female hunger and male vulnerability to female attacks (e.g. SSD) are major determinants of the occurrence of sexual cannibalism. Hence, while previous studies have suggested a polyphyletic origin of sexual cannibalism through several different hypotheses, my results suggest that female foraging (i.e. viewing sexual cannibalism as a predator/prey interaction) may be a more parsimonious explanation for the evolution of this behavior among taxa. Advisors/Committee Members: Rypstra, Ann (Advisor).

Subjects/Keywords: sexual cannibalism; evolution; Hogna helluo; spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wilder, S. M. (2007). The Roles of Ecological and Phylogenetic Conditions in the Occurrence and Frequency of Sexual Cannibalism in Spiders. (Doctoral Dissertation). Miami University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=miami1196455109

Chicago Manual of Style (16^th Edition):

Wilder, Shawn M. “The Roles of Ecological and Phylogenetic Conditions in the Occurrence and Frequency of Sexual Cannibalism in Spiders.” 2007. Doctoral Dissertation, Miami University. Accessed August 19, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1196455109.

MLA Handbook (7^th Edition):

Wilder, Shawn M. “The Roles of Ecological and Phylogenetic Conditions in the Occurrence and Frequency of Sexual Cannibalism in Spiders.” 2007. Web. 19 Aug 2019.

Vancouver:

Wilder SM. The Roles of Ecological and Phylogenetic Conditions in the Occurrence and Frequency of Sexual Cannibalism in Spiders. [Internet] [Doctoral dissertation]. Miami University; 2007. [cited 2019 Aug 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1196455109.

Council of Science Editors:

Wilder SM. The Roles of Ecological and Phylogenetic Conditions in the Occurrence and Frequency of Sexual Cannibalism in Spiders. [Doctoral Dissertation]. Miami University; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1196455109

Miami University

26. Wrinn, Kerri M. Impacts of an herbicide and predator cues on a generalist predator in agricultural systems.

Degree: PhD, Zoology, 2010, Miami University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=miami1272569523

► Animals use chemical cues for signaling between species. However, anthropogenic chemicals can interrupt this natural chemical information flow, affecting predator- prey interactions. I explored how… (more)

▼ Animals use chemical cues for signaling between species. However, anthropogenic chemicals can interrupt this natural chemical information flow, affecting predator- prey interactions. I explored how a glyphosate-based herbicide influenced the reactions of Pardosa milvina, a common wolf spider in agricultural systems, to its predators, the larger wolf spider, Hogna helluo and the carabid beetle, Scarites quadriceps. First, I tested the effects of exposure to herbicide and chemical cues from these predators on the activity, emigration, and survival of P. milvina in laboratory and mesocosm field experiments. In the presence of H. helluo cues in the laboratory, P. milvina always decreased activity and increased time to emigration. However, in the presence of S. quadriceps cues, these spiders only decreased activity and increased time to emigration when herbicide was also present. Presence of predator cues and herbicide did not affect the emigration of P. milvina from field mesocosms, but survival was highest for spiders exposed to S. quadriceps cues alone and lowest for those exposed to herbicide alone. Secondly, I tested the effects of predator cues, herbicide and prey availability on foraging and reproduction in female P. milvina. Spiders offered more prey captured and consumed more, while those exposed to H. helluo cues consumed less. Availability of prey and exposure to predator cues and herbicide in foraging trials had interactive effects on P. milvina’s subsequent reproductive success. In the low prey treatments, exposure to predator cues and herbicide each reduced reproductive success. In the high prey treatments, exposure to herbicide reduced reproductive success for spiders also exposed to S. quadriceps cues, but increased reproductive success for spiders also exposed to H. helluo cues. Finally, I exposed juvenile P. milvina to S. quadriceps cues and herbicide but found no effect of either on the spider’s growth and development. Together, these results indicate that predation risk and herbicide application likely interact in complex ways to affect the movement, reproduction and survival of a major arthropod predator in agricultural systems, and thus may have complex effects on the food web. Advisors/Committee Members: Rypstra, Ann (Advisor).

Subjects/Keywords: Zoology; wolf spiders; glyphosate; herbicide; predator cues

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wrinn, K. M. (2010). Impacts of an herbicide and predator cues on a generalist predator in agricultural systems. (Doctoral Dissertation). Miami University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=miami1272569523

Chicago Manual of Style (16^th Edition):

Wrinn, Kerri M. “Impacts of an herbicide and predator cues on a generalist predator in agricultural systems.” 2010. Doctoral Dissertation, Miami University. Accessed August 19, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1272569523.

MLA Handbook (7^th Edition):

Wrinn, Kerri M. “Impacts of an herbicide and predator cues on a generalist predator in agricultural systems.” 2010. Web. 19 Aug 2019.

Vancouver:

Wrinn KM. Impacts of an herbicide and predator cues on a generalist predator in agricultural systems. [Internet] [Doctoral dissertation]. Miami University; 2010. [cited 2019 Aug 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1272569523.

Council of Science Editors:

Wrinn KM. Impacts of an herbicide and predator cues on a generalist predator in agricultural systems. [Doctoral Dissertation]. Miami University; 2010. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1272569523

University of California – Berkeley

27. Ledford, Joel M. Studies on the Cave- Spider Family Leptonetidae.

Degree: Environmental Science, Policy, & Management, 2011, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/17t4g7dn

► The spider family Leptonetidae Simon, 1890 includes 17 genera and 213 species worldwide. They are broadly distributed in the Holarctic and typically associated with cool,… (more)

▼ The spider family Leptonetidae Simon, 1890 includes 17 genera and 213 species worldwide. They are broadly distributed in the Holarctic and typically associated with cool, moist habitats such as leaf litter, moss, rotting logs, and caves. The North American fauna is divided into two subfamilies, the Archoleptonetinae and Leptonetinae, with representatives in California through the Southern U.S. and Mexico. Five genera are currently recognized (Platnick, 2010), the most diverse of which is Neoleptoneta Brignoli, 1972 with a center of diversity in Texas where most species are known only from caves (Gertsch, 1974). Their restricted distributions and specialized biology have made them conservation priorities and two Texas species, Neoleptoneta microps (Gertsch, 1974) and N. myopica (Gertsch, 1974), are listed under the U.S. Endangered Species Act. The impetus for this study was a series of collections produced over the past thirty years which have dramatically increased the number of records for the family, including the discovery of several unknown sexes and new species. Additionally, detailed morphological study using scanning electron microscopy (SEM) has revealed a wealth of new characters many of which have implications for relationships within the family and among spiders as a whole. Lastly, fresh collections for several genera in Alabama, California, Mexico, and Texas have facilitated the use of molecular data to develop phylogenetic hypotheses within the family for the first time. The primary objective for the study is to revise the systematics of the North American genera, with particular emphasis on the taxonomy and relationships within the Archoleptonetinae and the Texas cave fauna. The study is divided into three chapters, the results of which are briefly summarized below. In the first chapter, a detailed morphological study of the genus Archoleptoneta revealed the presence of a cribellum an calamistrum representing the first cribellate member of the Leptonetidae. The morphology and relationships for the family are reviewed and the genus Darkoneta is described to include the ecribellate archoleptonetines. Three new species are also described from California, Mexico, and Guatemala. The second chapter uses molecular sequence variation from three genes to produce a phylogeny for the North American Leptonetidae, with emphasis on the relationships of Neoleptoneta Brignoli, 1972. The placement of two incertae sedis species, Leptoneta brunnea (Gertsch, 1974) and Leptoneta sandra (Gertsch, 1974) are also considered and four new genera are described. Morphological data are traced on the molecular phylogeny and patterns of cave evolution are discussed. The third chapter revises the taxonomy of the genus Tayshaneta, including the descriptions of ten new species from Texas. All Tayshaneta species are diagnosed and keyed, and comparative images using scanning electron and compound light microscopy are provided. Relationships among Tayshaneta are also discussed, including detailed descriptions of their morphology. Lastly,…

Subjects/Keywords: Biology; Caves; Endangered Species; Phylogeny; Spiders

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ledford, J. M. (2011). Studies on the Cave- Spider Family Leptonetidae. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/17t4g7dn

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ledford, Joel M. “Studies on the Cave- Spider Family Leptonetidae.” 2011. Thesis, University of California – Berkeley. Accessed August 19, 2019. http://www.escholarship.org/uc/item/17t4g7dn.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ledford, Joel M. “Studies on the Cave- Spider Family Leptonetidae.” 2011. Web. 19 Aug 2019.

Vancouver:

Ledford JM. Studies on the Cave- Spider Family Leptonetidae. [Internet] [Thesis]. University of California – Berkeley; 2011. [cited 2019 Aug 19]. Available from: http://www.escholarship.org/uc/item/17t4g7dn.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ledford JM. Studies on the Cave- Spider Family Leptonetidae. [Thesis]. University of California – Berkeley; 2011. Available from: http://www.escholarship.org/uc/item/17t4g7dn

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Berkeley

28. Lew, Stephen Ellis. The Holarctic Hacklemesh Spider Genus Callobius (Araneae: Amaurobiidae): Morphology, Systematics, and Population Biology.

Degree: Environmental Science, Policy, & Management, 2011, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/59s2d2tc

► Interest in the California Floristic Province as a study region for scientists interested in biodiversity, evolution, systematics, and phylogeography has been increasing over the last… (more)

▼ Interest in the California Floristic Province as a study region for scientists interested in biodiversity, evolution, systematics, and phylogeography has been increasing over the last several years. The amaurobiid spider genus Callobius (Chamberlin) occurs throughout the Northern Hemisphere, but is particularly common in western North America and particularly diverse in the California Floristic Province. An understanding of the evolutionary history of Callobius would contribute a great deal to this growing body of work, but the genus has received little attention since being revised in 1972. Since that time, a great deal has changed in the way biodiversity is studied. The Hennigian revolution changed the fundamental framework of systematics, and molecular techniques based on DNA sequences have brought enormous inferential power to bear on questions of systematics and population genetics, as well as almost every other discipline in organismal biology. In my doctoral work I have approached Callobius in the context of phylogenetic systematics and the biogeography of the California Floristic Province. First, I have taken a broad approach to the morphology of Callobius, particularly the morphology of the copulatory organs, as it might apply to cladistic investigations both within Callobius and more broadly among spiders. Second, I have undertaken a phylogenetic analysis of the subfamily Amaurobiinae, to illuminate evolutionary pattern within Callobius as well as between Callobius and other amaurobiine genera. And thirdly, I have used geometric morphometrics and population genetics to look for divergence within the widespread species Callobius severus. I have produced an atlas to the genitalic morphology of Callobius, and propose a morphological diagnosis that is more consistent with principles of homology than those previously in use. I have also found and described the male of Callobius pauculus, previously known only from females. Although my phylogenetic analysis did not resolve the relationships between the amaurobiine genera, it does offer some support for the monophyly of Callobius and identifies a clade of California Floristic Province neoendemic species. My study of Callobius severus supports infra-specific structure, and suggests that the geography of the California Floristic Province is influencing the evolution of Callobius in patterns similar to its influence on other taxa.

Subjects/Keywords: Zoology; Biology; California; Morphology; Morphometrics; Spiders; Systematics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lew, S. E. (2011). The Holarctic Hacklemesh Spider Genus Callobius (Araneae: Amaurobiidae): Morphology, Systematics, and Population Biology. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/59s2d2tc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lew, Stephen Ellis. “The Holarctic Hacklemesh Spider Genus Callobius (Araneae: Amaurobiidae): Morphology, Systematics, and Population Biology.” 2011. Thesis, University of California – Berkeley. Accessed August 19, 2019. http://www.escholarship.org/uc/item/59s2d2tc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lew, Stephen Ellis. “The Holarctic Hacklemesh Spider Genus Callobius (Araneae: Amaurobiidae): Morphology, Systematics, and Population Biology.” 2011. Web. 19 Aug 2019.

Vancouver:

Lew SE. The Holarctic Hacklemesh Spider Genus Callobius (Araneae: Amaurobiidae): Morphology, Systematics, and Population Biology. [Internet] [Thesis]. University of California – Berkeley; 2011. [cited 2019 Aug 19]. Available from: http://www.escholarship.org/uc/item/59s2d2tc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lew SE. The Holarctic Hacklemesh Spider Genus Callobius (Araneae: Amaurobiidae): Morphology, Systematics, and Population Biology. [Thesis]. University of California – Berkeley; 2011. Available from: http://www.escholarship.org/uc/item/59s2d2tc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

29. Halaj, Juraj. Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition.

Degree: PhD, Entomology, 1996, Oregon State University

URL: http://hdl.handle.net/1957/34526

► This work examined the importance of structural complexity of habitat, availability of prey, and competition with ants as factors influencing the abundance and community composition… (more)

▼ This work examined the importance of structural complexity of habitat, availability of prey, and competition with ants as factors influencing the abundance and community composition of arboreal spiders in western Oregon. In 1993, I compared the spider communities of several host-tree species which have different branch structure. I also assessed the importance of several habitat variables as predictors of spider abundance and diversity on and among individual tree species. The greatest abundance and species richness of spiders per 1-m-long branch tips were found on structurally more complex tree species, including Douglas-fir, Pseudotsuga menziesii (Mirbel) Franco and noble fir, Abies procera Rehder. Spider densities, species richness and diversity positively correlated with the amount of foliage, branch twigs and prey densities on individual tree species. The amount of branch twigs alone explained almost 70% of the variation in the total spider abundance across five tree species. In 1994, I experimentally tested the importance of needle density and branching complexity of Douglas-fir branches on the abundance and community structure of spiders and their potential prey organisms. This was accomplished by either removing needles, by thinning branches or by tying branches. Tying branches resulted in a significant increase in the abundance of spiders and their prey. Densities of spiders and their prey were reduced by removal of needles and thinning. The spider community of needle-sparse branches was dominated by orb weavers (Araneidae), whereas tied branches were preferably colonized by sheet-web weavers (Linyphiidae and Micryphantidae), and nocturnal hunting spiders (Anyphaeilidae and Clubionidae). Spider species richness and diversity increased in structurally more complex habitats. In 1994 and 1995, I excluded foraging Camponotus spp. ants from canopies of sapling Douglas-fir. Biomass of potential prey organisms, dominated by Psocoptera, increased significantly by 1.9 to 2.4-fold on the foliage following ant exclusion. Hunting spiders, dominated by the Salticidae, increased significantly by 1.5 to 1.8-fold in trees without ants in the late summer. The exclusion of ants did not affect the abundance of web-building spiders. Documented aggressive behavior of aphid-tending ants suggests interference competition between hunting spiders and ants. Advisors/Committee Members: Lattin, John D. (advisor), Perry, David A. (committee member).

Subjects/Keywords: Spiders – Ecology – Oregon

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Halaj, J. (1996). Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/34526

Chicago Manual of Style (16^th Edition):

Halaj, Juraj. “Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition.” 1996. Doctoral Dissertation, Oregon State University. Accessed August 19, 2019. http://hdl.handle.net/1957/34526.

MLA Handbook (7^th Edition):

Halaj, Juraj. “Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition.” 1996. Web. 19 Aug 2019.

Vancouver:

Halaj J. Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition. [Internet] [Doctoral dissertation]. Oregon State University; 1996. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/1957/34526.

Council of Science Editors:

Halaj J. Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition. [Doctoral Dissertation]. Oregon State University; 1996. Available from: http://hdl.handle.net/1957/34526

Virginia Tech

30. Whalen, Rebecca Anne. Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean.

Degree: PhD, Entomology, 2016, Virginia Tech

URL: http://hdl.handle.net/10919/71653

► Arthropod natural enemies play a key role in controlling potentially damaging pest populations in agroecosystems. An abundant and diverse natural enemy community is associated with… (more)

▼ Arthropod natural enemies play a key role in controlling potentially damaging pest populations in agroecosystems. An abundant and diverse natural enemy community is associated with higher yields in a variety of crops. Certain aspects of soybean production can make a field more or less amenable to a robust natural enemy community. For instance, commonly used broad-spectrum insecticides which are highly toxic to most arthropods can decrease natural enemy densities and allow for secondary pest outbreaks. Selective insecticides that have less impact on natural enemy populations allow for pest control while preserving important predators. Another production decision that could alter natural enemy communities is the choice of cropping system, specifically planting early (full season) or late, after small grain harvest (double crop). My research objectives were to examine how 1) selective insecticides and 2) cropping system affect the density and diversity of natural enemies in Virginia soybean. To address the first objective I compared the natural enemy community in soybean plots that were exposed to selective insecticides, broad-spectrum insecticides or no insecticide. I sampled insects using three different techniques and found that the two selective insecticides I tested, both from a new class called diamides, did not reduce the natural enemy community compared to controls. To examine how cropping system affects the natural enemy community I sampled full season and double crop fields during the growing season for two years. In 2014 ground-dwelling spider diversity was higher in full season soybean. In both years, double crop soybeans had higher abundance of spiders and insect natural enemies on the ground and in the foliage compared with full season soybean. This was unexpected, since double crop soybeans are planted later than full season and arthropod populations would have less time to colonize and grow. When I compared diversity of a family of predatory beetles I found higher diversity in full season soybean. The similarity in spider and insect natural enemy diversity and abundance trends suggests that a greater number of species can co-exist in full season soybean, while in double crop soybeans a few dominant natural enemies thrive. Advisors/Committee Members: Herbert, David Ames Jr. (committeechair), Kuhar, Thomas P. (committee member), Reisig, Dominic Duane (committee member), Pfeiffer, Douglas G. (committee member), Brewster, Carlyle C. (committee member).

Subjects/Keywords: Natural enemies; spiders; soybean; diversity; biological control

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Whalen, R. A. (2016). Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/71653

Chicago Manual of Style (16^th Edition):

Whalen, Rebecca Anne. “Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean.” 2016. Doctoral Dissertation, Virginia Tech. Accessed August 19, 2019. http://hdl.handle.net/10919/71653.

MLA Handbook (7^th Edition):

Whalen, Rebecca Anne. “Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean.” 2016. Web. 19 Aug 2019.

Vancouver:

Whalen RA. Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean. [Internet] [Doctoral dissertation]. Virginia Tech; 2016. [cited 2019 Aug 19]. Available from: http://hdl.handle.net/10919/71653.

Council of Science Editors:

Whalen RA. Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean. [Doctoral Dissertation]. Virginia Tech; 2016. Available from: http://hdl.handle.net/10919/71653

Open Access Theses and Dissertations