+publisher:"University of Alabama" +contributor:("Harris, Phillip M.")

University of Alabama

1. Fluker, Brook Lee. Spring-adapted darters (Percidae: Etheostoma) as a model to understand factors that influence diversification, gene flow, and genetic variation in freshwater fishes.

Degree: 2011, University of Alabama

URL: http://purl.lib.ua.edu/54179

► Darters (Percidae: Etheostomatinae) represent one of the most successful evolutionary radiations in North America and have become an exceptional model system in the study of… (more)

▼ Darters (Percidae: Etheostomatinae) represent one of the most successful evolutionary radiations in North America and have become an exceptional model system in the study of freshwater fish diversification. I used a variety of phylogenetic and population genetic methods to determine the utility of coldwater spring inhabiting darters from the Southern Appalachians as a model to understand how demography, ecology, geography, and time interrelate to influence genetic variation, gene flow, and lineage diversification at fine scales within river drainages. Chapters two and three focused on elucidating the colonization history of spring habitats and post-colonization evolution of the spring endemic Etheostoma nuchale; and E. phytophilum;. The analysis suggested that Pleistocene climate fluctuations likely facilitated spring habitat specialization. Both species were highly genetically structured, suggesting reduced dispersal capabilities compared to stream inhabiting sister species. Further, the finding of small long-term effective population sizes suggested that geologic and habitat stability played a key role in their persistence in an extremely isolated setting over evolutionary time scales. Chapter four used the spring endemic E. ditrema; and closely related stream inhabitants to test predictions of peripatric speciation. Phylogeographic reconstructions suggested that Pleistocene climatic fluctuations promoted rapid divergence of marginal spring inhabitants, and species identity has been maintained despite intermittent gene flow with stream relatives. Predictions of peripatric speciation were supported for E. ditrema;, i.e. high levels of population structure, reduced dispersal ability, low levels of genetic variation, and evidence for prolonged bottlenecks compared to stream relatives. This chapter highlighted the importance of both historical and ecological processes in peripatric speciation. Lastly, chapter five used comparative phylogeographic and population genetic methods to investigate the influence of habitat preference on gene flow, dispersal ability, and lineage divergence among two sister species of darters (E. boschungi; and E. tuscumbia;) with differing habitat preferences. The analysis revealed highly incongruent phylogeographic histories, population structures, and patterns of migration between the two species, supporting a previous hypothesis that habitat preference may contribute to lineage diversification in darters, especially by limiting dispersal among large river courses. Both species also showed striking differences in demographic history, suggesting differences in habitat stability during the Pleistocene. These results suggest that the combination of habitat preference and spatiotemporal habitat stability strongly influence gene flow and lineage divergence on fine geographic scales in darters, a finding that has potentially important implications for understanding diversification of the rich North American freshwater fish fauna. (Published By University of Alabama Libraries) Advisors/Committee Members: Harris, Phillip M., Clark, John L., Lopez-Bautista, Juan M., Rissler, Leslie J., Wood, Robert M., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Genetics; Systematic biology; Zoology; Comparative phylogeography; Divergence time estimates; Genetic structure; Microsatellites; Peripatric speciation

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APA (6^th Edition):

Fluker, B. L. (2011). Spring-adapted darters (Percidae: Etheostoma) as a model to understand factors that influence diversification, gene flow, and genetic variation in freshwater fishes. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/54179

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):

Fluker, Brook Lee. “Spring-adapted darters (Percidae: Etheostoma) as a model to understand factors that influence diversification, gene flow, and genetic variation in freshwater fishes.” 2011. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/54179.

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

MLA Handbook (7^th Edition):

Fluker, Brook Lee. “Spring-adapted darters (Percidae: Etheostoma) as a model to understand factors that influence diversification, gene flow, and genetic variation in freshwater fishes.” 2011. Web. 07 Dec 2019.

Vancouver:

Fluker BL. Spring-adapted darters (Percidae: Etheostoma) as a model to understand factors that influence diversification, gene flow, and genetic variation in freshwater fishes. [Internet] [Thesis]. University of Alabama; 2011. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/54179.

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

Council of Science Editors:

Fluker BL. Spring-adapted darters (Percidae: Etheostoma) as a model to understand factors that influence diversification, gene flow, and genetic variation in freshwater fishes. [Thesis]. University of Alabama; 2011. Available from: http://purl.lib.ua.edu/54179

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

University of Alabama

2. Sandel, Michael. Evolutionary relationships and historical biogeography of pygmy sunfishes (percomorphacea elassoma).

Degree: 2012, University of Alabama

URL: http://purl.lib.ua.edu/55041

► The mechanisms responsible for generation and maintenance of a freshwater biodiversity gradient in southeastern North America have received extensive scientific inquiry, but a synthetic understanding… (more)

▼ The mechanisms responsible for generation and maintenance of a freshwater biodiversity gradient in southeastern North America have received extensive scientific inquiry, but a synthetic understanding of their relative importance has not been attained. Recent advancements in DNA sequencing technologies and statistical methods are poised to generate and analyze the data necessary to identify such mechanisms, but this work should be preceded by a foundational knowledge of organismal biology and basic phylogeny. Pygmy sunfishes (Percomorphacea: Centrarchidae: Elassoma) are endemic to an aquatic biodiversity "hotspot" in the southeast, but are among the least-studied groups of North American freshwater fishes. I used molecular phylogenetics to infer evolutionary affinities within and relationships within Elassoma, and this information was used to address questions spanning a broad spatiotemporal scale. The goals of each study were to, 1) identify repeated phylogenetic and biogeographic patterns, 2) develop strategies to reconcile errors that previously impeded pattern recognition, and 3) assess putative processes that may explain the observed patterns. Chapter One includes a search of relevant literature and a discussion of taxonomic and conservation issues surrounding this group. Chapter Two is a test of hypothesized sister group relationships between Elassoma and other taxa within Percomorphacea, a problem that has plagued the systematic ichthyology community for decades. This study is the first to combine nuclear and mitochondrial protein-coding genes in a broadly sampled analysis of spiny ray-finned fishes. In addition, a new taxonomic proposal is presented that recognizes three major clades within Percomorphacea. Chapter Three reconstructs phylogenetic relationships among pygmy sunfish species using two nuclear genes and one mitochondrial gene. This study presents the first evidence for an Elassoma phylogeny that is independently corroborated by multiple loci and strongly supported in a combined analysis. In addition, this study identifies trends pertaining to the evolution of sexual dimorphism within the genus, and implicates sexual selection as a potential mechanism promoting ecological compatibility among closely related species. Chapter Four examines phylogeographic structure of the most widespread pygmy sunfish using the mitochondrial cytochrome b (CYTB) gene. This study reveals an unprecedented number of pre-Pleistocene lineages for a species of the Gulf-Atlantic Coastal Plain, and adjusts existing vicariance hypotheses to accord with Miocene geoclimatic events. Results of all three studies provide novel insights into the mechanisms responsible for the origin and maintenance of an aquatic biodiversity gradient in southeastern North America. (Published By University of Alabama Libraries) Advisors/Committee Members: Harris, Phillip M., Lopez-Bautista, Juan M., Rissler, Leslie J., Warren, Melvin L., Williams, James D., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Zoology; Evolution & development; cytochrome b; elassoma; gulf-atlantic coastal plain; mitogenome; phylogeny; phylogeography

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APA (6^th Edition):

Sandel, M. (2012). Evolutionary relationships and historical biogeography of pygmy sunfishes (percomorphacea elassoma). (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/55041

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):

Sandel, Michael. “Evolutionary relationships and historical biogeography of pygmy sunfishes (percomorphacea elassoma).” 2012. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/55041.

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

MLA Handbook (7^th Edition):

Sandel, Michael. “Evolutionary relationships and historical biogeography of pygmy sunfishes (percomorphacea elassoma).” 2012. Web. 07 Dec 2019.

Vancouver:

Sandel M. Evolutionary relationships and historical biogeography of pygmy sunfishes (percomorphacea elassoma). [Internet] [Thesis]. University of Alabama; 2012. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/55041.

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

Council of Science Editors:

Sandel M. Evolutionary relationships and historical biogeography of pygmy sunfishes (percomorphacea elassoma). [Thesis]. University of Alabama; 2012. Available from: http://purl.lib.ua.edu/55041

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

University of Alabama

3. Beshera, Kebede Alemu. Molecular phylogeny, biogeography, population structure and taxonomy of large barbine minnows (Labeobarbus: Cyprinidae).

Degree: 2012, University of Alabama

URL: http://purl.lib.ua.edu/77721

► The phylogeny, biogeography, population genetics and taxonomy of Labeobarbus (Cyprinidae), a genus of large hexaploid minnows, was estimated by a variety of phylogenetic and population… (more)

▼ The phylogeny, biogeography, population genetics and taxonomy of Labeobarbus (Cyprinidae), a genus of large hexaploid minnows, was estimated by a variety of phylogenetic and population genetics methods. In Chapter 2 relationships among species of large barbine minnows was examined based on analysis of variation in complete mitochondrial (mt) cytochrome b (cyt b) gene sequences. In all analyses hexaploid minnows from Saharan and Sub-Saharan Africa and the Middle East were recovered as a monophyletic group. This clade diverged from European tetraploid and African diploid and tetraploid lineages approximately 13 MYA. The earliest cladogenetic event within this clade occurred ca 5.0 MYA giving rise to Sub-Saharn African and Saharan African-Levant clades. Subsequent cladodenesis within the clade took place during the Plio-Pleistocene. Chapter 3 investigated the phylogeography of Labeobarbus intermedius across its geographic distribution in Ethiopia based on analysis of complete cyt b gene sequences. Phylogenetic analysis recovered two distinct geographic lineages (northern and southern) within L. intermedius, which diverged from each other ca Late Pleistocene consistent with the timing of Pleistocene volcanic activities in East Africa. Chapter 4 developed microsatellite DNA markers for use in Chapter 5. Seventy-two microsatellite primers were developed based on a genomic library of Labeobarbus intermedius employing next generation 454 sequencing. Six polymorphic loci were examined over 35 L. intermedius specimens and tested for cross-species amplification in other Labeobarbus taxa. Genetic diversity was high with 99 alleles identified in L. intemedius with an average of 16.5 alleles per locus. Observed heterozygosity ranged from 0.8-1.0 across all loci. These loci also amplified successfully across all taxa. In Chapter 5, ten microsatllite DNA loci and mitochondrial cytochrome oxidase I (COI) and cyt b gene sequences were analyzed to investigate population structure and evolutionary relationships within the Labeobarbus species flock of Lake Tana. Phylogenetic analyses based on COI and cyt b gene sequences consistently rejected the monophyly of Lake Tana Labeobarbus haplotypes and recovered all haplotypes as part of a larger clade that contained haplotypes from independent drainages throughout Ethiopia. Bayesian clustering analysis of ten microsatellite markers employing STRUCTURE revealed little genetic differentiation within the Lake Tana Labeobarbus suggesting that alleles were shared among individuals and putative species in the species flock. The resolved phylogeny and lack of population differentiation in Lake Tana Labeobarbus may suggest either these evolutionary lineages are at an early stage of an ongoing adaptive radiation in Lake Tana or lack of signal in molecular markers examined. (Published By University of Alabama Libraries) Advisors/Committee Members: Harris, Phillip M., Rissler, Leslie J., Lopez-Bautista, Juan M., Graf, Daniel L., Mayden, Richard L., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Biology; barbine minnows; Labeobarbus; Lake Tana; phylogeny; phylogeography; Population structure

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

APA (6^th Edition):

Beshera, K. A. (2012). Molecular phylogeny, biogeography, population structure and taxonomy of large barbine minnows (Labeobarbus: Cyprinidae). (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/77721

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):

Beshera, Kebede Alemu. “Molecular phylogeny, biogeography, population structure and taxonomy of large barbine minnows (Labeobarbus: Cyprinidae).” 2012. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/77721.

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

MLA Handbook (7^th Edition):

Beshera, Kebede Alemu. “Molecular phylogeny, biogeography, population structure and taxonomy of large barbine minnows (Labeobarbus: Cyprinidae).” 2012. Web. 07 Dec 2019.

Vancouver:

Beshera KA. Molecular phylogeny, biogeography, population structure and taxonomy of large barbine minnows (Labeobarbus: Cyprinidae). [Internet] [Thesis]. University of Alabama; 2012. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/77721.

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

Council of Science Editors:

Beshera KA. Molecular phylogeny, biogeography, population structure and taxonomy of large barbine minnows (Labeobarbus: Cyprinidae). [Thesis]. University of Alabama; 2012. Available from: http://purl.lib.ua.edu/77721

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

University of Alabama

4. Lam, Daryl W. Biodiversity and systematics of subaerial algae from the neotropics and Hawaii.

Degree: 2010, University of Alabama

URL: http://purl.lib.ua.edu/13792

► Algae are a diverse assemblage of photosynthetic organisms that includes prokaryotes (Cyanobacteria) as well as unicellular and multicellular eukaryotes. They inhabit freshwater, saltwater, and terrestrial… (more)

▼ Algae are a diverse assemblage of photosynthetic organisms that includes prokaryotes (Cyanobacteria) as well as unicellular and multicellular eukaryotes. They inhabit freshwater, saltwater, and terrestrial ecosystems. Terrestrial algae include microscopic photobionts that thrive (both in abundance and diversity) in humid conditions. Unfortunately, terrestrial algae are an understudied group in the field of biology. This dissertation presents algal systematic research from the neotropical rainforests of Panama (Central America) and Suriname (South America) as well as coastal areas of Oahu, Hawaii (USA). Finally, an overall phylogeny of all green algae is inferred through multigene molecular phylogenetic inference. Biodiversity assessments were based on environmental cloning and sequencing. Systematic biology techniques included morphological observations via light and electron microscopy from specimens isolated through unialgal culture. Systematic assessments were further confirmed through molecular phylogenetic trees reconstructed by Bayesian inference, maximum likelihood, and parsimony methods. Environmental sequencing results suggest that the Surinamese rainforest Raleighvallen is comprised of various green algal (Chlorophyta), nostocalean (Cyanobacteria), and diatom (Heterokontophyta) taxa. Molecular phylogenetic analyses of the green algal order Trentepohliales collected from Panama strongly suggest that the genera Printzina and Trentepohlia do not form separate monophyletic lineages. These results indicate that the morphological characteristics currently used to distinguish these two genera need to be reassessed. The green alga Spongiochyris hawaiiensis is a common epiphyte found on the bark of Casuarina trees in Waimanalo state park on the island of Oahu. Molecular phylogenetic analyses as well as electron microscopy observations of this alga strongly suggest that it belongs to the order Cladophorales. Finally, a multigene phylogeny of green algae from all habitats (marine, freshwater, and terrestrial) was inferred from GenBank and unpublished sequences. Within the division Chlorophyta, the classes Chlorophyceae, Trebouxiophyceae, and Ulvophyceae formed separate monophyletic or natural assemblages. Furthermore, this phylogeny strongly suggests that there were multiple migration events from aquatic environments (from both fresh and marine waters) to land within the Chlorophytan algae. (Published By University of Alabama Libraries) Advisors/Committee Members: Lopez-Bautista, Juan M., Zechman, Frederick W., Ward, Amelia K., Clark, John L., Harris, Phillip M., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Biology, Botany; Biodiversity; Molecular Systematics; Phycology; Phylogeny; Taxonomy

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APA (6^th Edition):

Lam, D. W. (2010). Biodiversity and systematics of subaerial algae from the neotropics and Hawaii. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/13792

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):

Lam, Daryl W. “Biodiversity and systematics of subaerial algae from the neotropics and Hawaii.” 2010. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/13792.

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

MLA Handbook (7^th Edition):

Lam, Daryl W. “Biodiversity and systematics of subaerial algae from the neotropics and Hawaii.” 2010. Web. 07 Dec 2019.

Vancouver:

Lam DW. Biodiversity and systematics of subaerial algae from the neotropics and Hawaii. [Internet] [Thesis]. University of Alabama; 2010. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/13792.

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

Council of Science Editors:

Lam DW. Biodiversity and systematics of subaerial algae from the neotropics and Hawaii. [Thesis]. University of Alabama; 2010. Available from: http://purl.lib.ua.edu/13792

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

University of Alabama

5. Coleman, Cassandra Lynn. A phylogeny and study of floral traits in the neotropical genus Gasteranthus (Gesneriaceae).

Degree: 2012, University of Alabama

URL: http://purl.lib.ua.edu/77778

► The genus Gasteranthus (Gesneriaceae), with 41 currently described species, including 3 subspecies, occurs in Central and South America. This genus has a center of diversity… (more)

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Systematic biology; Biology; Corolla Morphology; Gasteranthus; Gesneriaceae; Phylogeny

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APA (6^th Edition):

Coleman, C. L. (2012). A phylogeny and study of floral traits in the neotropical genus Gasteranthus (Gesneriaceae). (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/77778

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):

Coleman, Cassandra Lynn. “A phylogeny and study of floral traits in the neotropical genus Gasteranthus (Gesneriaceae).” 2012. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/77778.

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

MLA Handbook (7^th Edition):

Coleman, Cassandra Lynn. “A phylogeny and study of floral traits in the neotropical genus Gasteranthus (Gesneriaceae).” 2012. Web. 07 Dec 2019.

Vancouver:

Coleman CL. A phylogeny and study of floral traits in the neotropical genus Gasteranthus (Gesneriaceae). [Internet] [Thesis]. University of Alabama; 2012. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/77778.

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

Council of Science Editors:

Coleman CL. A phylogeny and study of floral traits in the neotropical genus Gasteranthus (Gesneriaceae). [Thesis]. University of Alabama; 2012. Available from: http://purl.lib.ua.edu/77778

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

University of Alabama

6. Whelan, Nathan V. Conservation, life history and systematics of Leptoxis rafinesque 1819: (Gastropoda: Cerithioidea: Pleuroceridae).

Degree: 2013, University of Alabama

URL: http://purl.lib.ua.edu/97271

► Freshwater gastropods of the family Pleuroceridae are incredibly important to the health of freshwater ecosystems in the southeastern United States. Surprisingly, however, they are one… (more)

▼ Freshwater gastropods of the family Pleuroceridae are incredibly important to the health of freshwater ecosystems in the southeastern United States. Surprisingly, however, they are one of the most understudied groups of mollusks in North America. Recent data suggest that pleurocerids have an imperilment rate of 79% and many species are under immediate threat of extinction. As such, the time is now to better understand their biology, taxonomy, and phylogeny. Any study that wishes to understand a species group like pleurocerids must start with extensive field work and taxon sampling. As a part of that endeavor I rediscovered Leptoxis compacta , a snail that had not been collected live in 76 years. In chapter two, I report on this discovery and I propose a captive propagation plan and potential reintroduction sites for L. compacta in an attempt to prevent its extinction. In chapter three, I explore the often reported species level polyphyly on mitochondrial gene trees for gastropods in the family Pleuroceridae and its sister family Semisulcospiridae. Explanations for this paraphyly have ranged from unsatisfying (e.g. that species-level polyphyly is caused by historical introgression) to absurd (e.g. the same species on earth today were here over 65 million years ago). I conclusively demonstrate that the "divergent" haplotypes that have caused this phylogenetic pattern in previous studies are paralogous nuclear copies of mitochondrial genes as that were included in phylogenetic inference as mitochondrial homologs. In chapter four, I present a detailed analysis on egg-laying behaviors in Leptoxis species. I also demonstrate that, despite claims to the contrary, shell variation among species is a result of genetic differences, not ecophenotypic plasticity. I also show that three different egg-laying behaviors exist within the genus, single egg-laying, laying eggs in a line, and clutch formation egg-laying. Finally, I tackle the chaotic Leptoxis taxonomy by inferring phylogenetic hypotheses for Leptoxis and other pleurocerids outgroups using three genes. Leptoxis is resolved as para- and polyphyletic, and I elevate one genus and describe a new genus. This dissertation is an important first step for better understanding pleurocerid biology, and I hope it will stimulate much future study on this fascinating family of freshwater snails. (Published By University of Alabama Libraries) Advisors/Committee Members: Harris, Phillip M., Lopez-Bautista, Juan, Huryn, Alex, Graf, Daniel L., Johnson, Paul D., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Biology; Conservation biology; Molecular biology; Conservation; Freshwater; Gastropoda; Phylogeny; Pleuroceridae; Taxonomy

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

APA (6^th Edition):

Whelan, N. V. (2013). Conservation, life history and systematics of Leptoxis rafinesque 1819: (Gastropoda: Cerithioidea: Pleuroceridae). (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/97271

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):

Whelan, Nathan V. “Conservation, life history and systematics of Leptoxis rafinesque 1819: (Gastropoda: Cerithioidea: Pleuroceridae).” 2013. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/97271.

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

MLA Handbook (7^th Edition):

Whelan, Nathan V. “Conservation, life history and systematics of Leptoxis rafinesque 1819: (Gastropoda: Cerithioidea: Pleuroceridae).” 2013. Web. 07 Dec 2019.

Vancouver:

Whelan NV. Conservation, life history and systematics of Leptoxis rafinesque 1819: (Gastropoda: Cerithioidea: Pleuroceridae). [Internet] [Thesis]. University of Alabama; 2013. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/97271.

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

Council of Science Editors:

Whelan NV. Conservation, life history and systematics of Leptoxis rafinesque 1819: (Gastropoda: Cerithioidea: Pleuroceridae). [Thesis]. University of Alabama; 2013. Available from: http://purl.lib.ua.edu/97271

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

7. Fuller, Adam Blair. The influence of the social environment on phenotypic plasticity, flexibility, and evolution.

Degree: 2015, University of Alabama

URL: http://purl.lib.ua.edu/125649

► This dissertation describes the ways in which social environment shapes animal phenotype through phenotypic plasticity, flexibility, and evolutionary change. I investigated phenotypic plasticity in response… (more)

▼ This dissertation describes the ways in which social environment shapes animal phenotype through phenotypic plasticity, flexibility, and evolutionary change. I investigated phenotypic plasticity in response to conspecific social environment using the mangrove rivulus fish (Kryptolebias marmoratus). I measured reaction norms for growth, behavior, and hormonal physiology for two isogenic lineages of mangrove rivulus raised from hatching to maturity in isolation and with conspecifics. I found that social environment increased growth, particularly in dominant individuals and that animals raised in a social environment exhibited greater flexibility in aggressive behavior towards a mirror or model, but showed no change in boldness or in hormone production. The two isogenic lineages exhibited different reaction norms, with one showing greater response to social environment than the other. I investigated phenotypic flexibility in response to social environment using the nesting behavior of male longear sunfish (Lepomis megalotis). I found that male longear sunfish showed a non-significant trend toward reduction of nest construction when potential egg predators (juvenile sunfish) were present. However, sunfish did not alter the size or placement of their nests relative to the location of cover. Finally, I proposed a novel conceptual model to describe how the evolution of sexual signals can be shaped by selection by heterospecific eavesdroppers. This model accounts for selection by traditionally neglected eavesdroppers such as those that avoid signals, prey, and mutualists. I tested the response of bluenose shiners (Pteronotropis welaka), a potential mutualist, to a sexual signal (opercular flap length) of their host, longear sunfish. I found that bluenose shiners exhibited a preference for males with longer opercular flaps, the first experimental evidence of eavesdropping in a nest associate and potential mutualist. I then measured the morphology of the opercular flaps of sunfish from watersheds where bluenose shiners were present, watersheds where shiners were not present, and watersheds distant from shiners. Opercular flap morphology did not vary between these treatments, providing evidence that eavesdropping by bluenose shiners had not exerted strong selection for changes in sunfish sexual signals over a broad spatial distribution. (Published By University of Alabama Libraries) Advisors/Committee Members: Earley, Ryan L., Benstead, Jonathan P., Harris, Phillip M., Johnston, Carol, Rissler, Leslie J., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Animal behavior; Evolution & development; Ecology; Eavesdropping; Nest Association; Phenotypic Plasticity; Sexual Signals; Social Environment

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APA (6^th Edition):

Fuller, A. B. (2015). The influence of the social environment on phenotypic plasticity, flexibility, and evolution. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/125649

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):

Fuller, Adam Blair. “The influence of the social environment on phenotypic plasticity, flexibility, and evolution.” 2015. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/125649.

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

MLA Handbook (7^th Edition):

Fuller, Adam Blair. “The influence of the social environment on phenotypic plasticity, flexibility, and evolution.” 2015. Web. 07 Dec 2019.

Vancouver:

Fuller AB. The influence of the social environment on phenotypic plasticity, flexibility, and evolution. [Internet] [Thesis]. University of Alabama; 2015. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/125649.

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

Council of Science Editors:

Fuller AB. The influence of the social environment on phenotypic plasticity, flexibility, and evolution. [Thesis]. University of Alabama; 2015. Available from: http://purl.lib.ua.edu/125649

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

University of Alabama

8. Martin, Jason Michael. Phylogenetic placement of resia and cremospermopsis (gesneriaceae).

Degree: 2015, University of Alabama

URL: http://purl.lib.ua.edu/131983

► Resia and Cremospermopsis are two small genera that are known from less than 50 collections. Recent fieldwork in Ecuador has resulted in the discovery of… (more)

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Biology; Evolution & development; Botany; Beslerieae; Cremospermopsis; Ecuador; Gesneriaceae; Phylogenetics; Resia

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

APA (6^th Edition):

Martin, J. M. (2015). Phylogenetic placement of resia and cremospermopsis (gesneriaceae). (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/131983

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):

Martin, Jason Michael. “Phylogenetic placement of resia and cremospermopsis (gesneriaceae).” 2015. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/131983.

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

MLA Handbook (7^th Edition):

Martin, Jason Michael. “Phylogenetic placement of resia and cremospermopsis (gesneriaceae).” 2015. Web. 07 Dec 2019.

Vancouver:

Martin JM. Phylogenetic placement of resia and cremospermopsis (gesneriaceae). [Internet] [Thesis]. University of Alabama; 2015. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/131983.

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

Council of Science Editors:

Martin JM. Phylogenetic placement of resia and cremospermopsis (gesneriaceae). [Thesis]. University of Alabama; 2015. Available from: http://purl.lib.ua.edu/131983

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

University of Alabama

9. Payton, Samantha Lea. Differential response mechanisms to acute and long-term simulations of global warming for two closely related species of unionid freshwater mussel, villosa lienosa and villosa nebulosa.

Degree: 2016, University of Alabama

URL: http://purl.lib.ua.edu/144982

► Freshwater mussels are keystone species in aquatic environments, providing ecological services that protect aquatic resources. Their global decline resulting from habitat alterations such as global… (more)

▼ Freshwater mussels are keystone species in aquatic environments, providing ecological services that protect aquatic resources. Their global decline resulting from habitat alterations such as global warming is thus alarming. Since agencies such as the Alabama Aquatic Biodiversity Center are expending great effort in restoring imperiled species it would be beneficial to understand how thermally tolerant and thermally sensitive species (Villosa lienosa and Villosa nebulosa, (respectively) respond to environmentally relevant thermal stress. This dissertation presents the findings from a series of experiments aimed at developing resources and response models capable of answering questions related to thermal stress in freshwater mussels. We created a high quality transcriptomics database for both species that includes both ambient and heat stressed expressed transcripts. Using this publicly available database we assessed the acute heat shock response of both species and found that regulatory mechanisms at the transcriptomic level differ between the two species. We then conducted two chronic thermal simulations, 4 months and 11 months, respectively, in natural conditions at environmentally relevant temperatures predicted by the Intergovernmental Panel on Climate Change for the year 2100. Along with molecular biomarkers, these studies also included physiological biomarkers (condition index and growth rates) and biochemical markers (glycogen and triglyceride content, and lipid peroxidation levels as determined by MDA concentrations). During the summer months, V. nebulosa responded to warming at lower temperatures than V. lienosa and experienced significant mortality. Further, V. nebulosa appeared to undergo metabolic depression after a period of higher metabolic rates that could not be maintained with available resources. Villosa lienosa, on the other hand was able to cope with the thermal stress via upregulation of molecular chaperones and did not display symptoms of increased metabolic demand. As a whole, this dissertation supports the need for natural field experiments on longer temporal scales using environmentally relevant temperatures. It is clear that predicted global warming will impact imperiled populations of freshwater mussels. Future research needs to further validate sensitive biomarkers of mussel physiological response for use in conservation and management strategies. (Published By University of Alabama Libraries) Advisors/Committee Members: Jenny, Matthew J., Harris, Phillip M., Johnson, Paul D., Reed, Laura, Rissler, Leslie, University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Aquatic sciences; Ecology; Molecular biology; Condition Index; Energy Resources; Freshwater Mussels; Gene Expression; Global Warming; Heat Shock Protein

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

APA (6^th Edition):

Payton, S. L. (2016). Differential response mechanisms to acute and long-term simulations of global warming for two closely related species of unionid freshwater mussel, villosa lienosa and villosa nebulosa. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/144982

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):

Payton, Samantha Lea. “Differential response mechanisms to acute and long-term simulations of global warming for two closely related species of unionid freshwater mussel, villosa lienosa and villosa nebulosa.” 2016. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/144982.

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

MLA Handbook (7^th Edition):

Payton, Samantha Lea. “Differential response mechanisms to acute and long-term simulations of global warming for two closely related species of unionid freshwater mussel, villosa lienosa and villosa nebulosa.” 2016. Web. 07 Dec 2019.

Vancouver:

Payton SL. Differential response mechanisms to acute and long-term simulations of global warming for two closely related species of unionid freshwater mussel, villosa lienosa and villosa nebulosa. [Internet] [Thesis]. University of Alabama; 2016. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/144982.

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

Council of Science Editors:

Payton SL. Differential response mechanisms to acute and long-term simulations of global warming for two closely related species of unionid freshwater mussel, villosa lienosa and villosa nebulosa. [Thesis]. University of Alabama; 2016. Available from: http://purl.lib.ua.edu/144982

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

University of Alabama

10. Wang, Wei. The development and regulation of adult abdominal segment reduction in drosophila.

Degree: 2014, University of Alabama

URL: http://purl.lib.ua.edu/105108

► A central aim of evolutionary research is to understand the genetic and molecular mechanisms underlying the morphological divergence of species. A growing body of evidence… (more)

▼ A central aim of evolutionary research is to understand the genetic and molecular mechanisms underlying the morphological divergence of species. A growing body of evidence has been accumulated showing mutations in cis-regulatory elements that affect the regulation of gene expression are a common source of morphological evolution. A number of fundamental studies have been done on several rapidly evolving traits, including Drosophila pigmentation patterns and larval trichome patterns, and skeletal structures of stickleback fish. However, the evolution of conserved traits is not well understood. For my dissertation, I focused on understanding the genetic mechanisms that lead to the robustness and maintenance of conserved traits. Specifically, I use abdominal segment reduction as a genetic model to address my question. Adult female Drosophila develops seven abdominal segments, while adult males only have six segments. In the following studies, we investigated 1) When and how male A7 segment is reduced during development. We found male A7 segment is reduced between 24 h APF and 40 h APF. 2) The mechanisms responsible for the loss of male A7. We found male A7 is eliminated by the combination of suppression of cell proliferation and differentiation, segment compartmental transformation and apoptosis. 3) The genetic regulation of male A7 reduction. I found male A7 reduction is controlled by the Hox protein Abd-B and sex-determination factor Dsx through negative regulation of Wg and DER activity. 4) Gene interactions within the regulatory network that controls male A7 reduction. I found the regulation of wg is the key node in this highly interactive regulatory network. 5) The regulatory control of wg during pupal development. I identified two CREs (wg8 and wg9) regulating wg expression in pupal abdomen. These findings show that the regulation wg is at the center of a highly interactive regulatory network, which may contribute to the robustness and long-term maintenance of segment reduction in Cyclorrhapha. (Published By University of Alabama Libraries) Advisors/Committee Members: Yoder, John H., O'Donnell, Janis M., Caldwell, Guy A., Harris, Phillip M., Jenny, Matthew, Williams, Thomas M., University of Alabama. Dept. of Biological Sciences.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Developmental biology; Genetics; Evolution & development; Doublesex; Drosophila; Hox proteins; Segment reduction; Sexual dimorphism; Wingless

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

APA (6^th Edition):

Wang, W. (2014). The development and regulation of adult abdominal segment reduction in drosophila. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/105108

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):

Wang, Wei. “The development and regulation of adult abdominal segment reduction in drosophila.” 2014. Thesis, University of Alabama. Accessed December 07, 2019. http://purl.lib.ua.edu/105108.

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

MLA Handbook (7^th Edition):

Wang, Wei. “The development and regulation of adult abdominal segment reduction in drosophila.” 2014. Web. 07 Dec 2019.

Vancouver:

Wang W. The development and regulation of adult abdominal segment reduction in drosophila. [Internet] [Thesis]. University of Alabama; 2014. [cited 2019 Dec 07]. Available from: http://purl.lib.ua.edu/105108.

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

Council of Science Editors:

Wang W. The development and regulation of adult abdominal segment reduction in drosophila. [Thesis]. University of Alabama; 2014. Available from: http://purl.lib.ua.edu/105108

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

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Open Access Theses and Dissertations