subject:(Tropical AND temperate forests)

Michigan State University

1. Minor, David Michael. The effects of tree size, nutrient availability, interactions with neighbors, and masting synchrony on fruit production in tropical and temperate forests.

Degree: 2014, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:3272

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Thesis M.S. Michigan State University. Plant Biology - Master of Science 2014.

Tree regeneration can be limited by the number of fruit produced by mature… (more)

Subjects/Keywords: Trees – Reproduction; Competition (Biology); Tropical fruit – Costa Rica; Temperate forests – Michigan; Plant nutrients; Forest regeneration; Forests and forestry – Tropics; Forests and forestry; Temperate forests; Tropical fruit; Plant biology; Ecology

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APA (6^th Edition):

Minor, D. M. (2014). The effects of tree size, nutrient availability, interactions with neighbors, and masting synchrony on fruit production in tropical and temperate forests. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:3272

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):

Minor, David Michael. “The effects of tree size, nutrient availability, interactions with neighbors, and masting synchrony on fruit production in tropical and temperate forests.” 2014. Thesis, Michigan State University. Accessed March 04, 2021. http://etd.lib.msu.edu/islandora/object/etd:3272.

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

MLA Handbook (7^th Edition):

Minor, David Michael. “The effects of tree size, nutrient availability, interactions with neighbors, and masting synchrony on fruit production in tropical and temperate forests.” 2014. Web. 04 Mar 2021.

Vancouver:

Minor DM. The effects of tree size, nutrient availability, interactions with neighbors, and masting synchrony on fruit production in tropical and temperate forests. [Internet] [Thesis]. Michigan State University; 2014. [cited 2021 Mar 04]. Available from: http://etd.lib.msu.edu/islandora/object/etd:3272.

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

Council of Science Editors:

Minor DM. The effects of tree size, nutrient availability, interactions with neighbors, and masting synchrony on fruit production in tropical and temperate forests. [Thesis]. Michigan State University; 2014. Available from: http://etd.lib.msu.edu/islandora/object/etd:3272

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

2. Albinet, Clément. Sensibilité des observables radars à la variabilité temporelle et à la configuration géométrique de forêts tempérées et tropicales à partir de mesure de proximité haute-résolution : Radar data sensitivity to the temporal variability and the geometrical configuration of temperate and tropical forests from in-situ high resolution measurements.

Degree: Docteur es, Traitement du signal et télécommunications, 2013, Rennes 1

URL: http://www.theses.fr/2013REN1S153

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L'augmentation importante de la population mondiale, et par conséquent de ses besoins, exerce une pression de plus en plus importante sur les surfaces forestières. L'outil… (more)

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L'augmentation importante de la population mondiale, et par conséquent de ses besoins, exerce une pression de plus en plus importante sur les surfaces forestières. L'outil le mieux adapté au suivi des forêts, à l'échelle du globe, est la télédétection. C'est dans ce contexte que se situe ce travail de thèse, qui vise à améliorer l'estimation des paramètres biophysiques des arbres à partir de données de télédétection. L'originalité de ce travail a été d'étudier cette estimation des paramètres biophysiques en menant plusieurs études de sensibilité avec une démarche expérimentale sur des données expérimentales et sur des données simulées. Tout d'abord, l'étude s'est portée sur des séries temporelles de mesures de diffusiométrie radar obtenues sur deux sites : l'un constitué d'un cèdre en zone tempérée et l'autre d'une parcelle de forêt tropicale. Puis, cette étude de sensibilité a été poursuivie en imageant, avec une résolution élevée, plusieurs parcelles aux configurations différentes à l'intérieur d'une forêt de pin. Enfin, des données optiques et radars simulées ont été fusionnés afin d'évaluer l'apport de la fusion de données optique et radar dans l'inversion des paramètres biophysiques.

The significant increase of the world population, and therefore its needs, pushes increasingly high in forest areas. The best tool for monitoring forest across the globe is remote sensing. It is in this context that this thesis, which aims to improve the retrieval of biophysical parameters of trees from remote sensing data, takes place. The originality of this work was to study the estimation of biophysical parameters across multiple sensitivity studies on experimental data and simulated data. First, the study focused on the time series of radar scatterometry measurements obtained on two sites: one characterized by a cedar in the temperate zone and the other by a forest plot of rainforest. Then, the sensitivity analysis was continued by imaging with high resolution, several forest plots with different configurations within a pine forest. Finally, simulated radar and optical data were combined to evaluate the contribution of optical and radar data fusion in the inversion of biophysical parameters.

Advisors/Committee Members: Pottier, Éric (thesis director), Borderies, Pierre (thesis director).

Subjects/Keywords: Télédétection radar; Télédétection hyperspectrale; Forêts tropicales et tempérées; Campagnes terrain; Modélisation; Radar remote sensing; Hyperspectral remote sensing; Tropical and temperate forests; Field campaigns; Modeling

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

APA (6^th Edition):

Albinet, C. (2013). Sensibilité des observables radars à la variabilité temporelle et à la configuration géométrique de forêts tempérées et tropicales à partir de mesure de proximité haute-résolution : Radar data sensitivity to the temporal variability and the geometrical configuration of temperate and tropical forests from in-situ high resolution measurements. (Doctoral Dissertation). Rennes 1. Retrieved from http://www.theses.fr/2013REN1S153

Chicago Manual of Style (16^th Edition):

Albinet, Clément. “Sensibilité des observables radars à la variabilité temporelle et à la configuration géométrique de forêts tempérées et tropicales à partir de mesure de proximité haute-résolution : Radar data sensitivity to the temporal variability and the geometrical configuration of temperate and tropical forests from in-situ high resolution measurements.” 2013. Doctoral Dissertation, Rennes 1. Accessed March 04, 2021. http://www.theses.fr/2013REN1S153.

MLA Handbook (7^th Edition):

Albinet, Clément. “Sensibilité des observables radars à la variabilité temporelle et à la configuration géométrique de forêts tempérées et tropicales à partir de mesure de proximité haute-résolution : Radar data sensitivity to the temporal variability and the geometrical configuration of temperate and tropical forests from in-situ high resolution measurements.” 2013. Web. 04 Mar 2021.

Vancouver:

Albinet C. Sensibilité des observables radars à la variabilité temporelle et à la configuration géométrique de forêts tempérées et tropicales à partir de mesure de proximité haute-résolution : Radar data sensitivity to the temporal variability and the geometrical configuration of temperate and tropical forests from in-situ high resolution measurements. [Internet] [Doctoral dissertation]. Rennes 1; 2013. [cited 2021 Mar 04]. Available from: http://www.theses.fr/2013REN1S153.

Council of Science Editors:

Albinet C. Sensibilité des observables radars à la variabilité temporelle et à la configuration géométrique de forêts tempérées et tropicales à partir de mesure de proximité haute-résolution : Radar data sensitivity to the temporal variability and the geometrical configuration of temperate and tropical forests from in-situ high resolution measurements. [Doctoral Dissertation]. Rennes 1; 2013. Available from: http://www.theses.fr/2013REN1S153

Australian National University

3. Abdul Bahar, Nur Hazwani. Photosynthetic characterisation of tropical and temperate rainforest species .

Degree: 2016, Australian National University

URL: http://hdl.handle.net/1885/117236

► Rubisco catalyses a rate-limiting step in photosynthesis and is the largest nitrogen sink in leaves. The maximum rate of carboxylation of Rubisco, Vcmax, is routinely… (more)

▼ Rubisco catalyses a rate-limiting step in photosynthesis and is the largest nitrogen sink in leaves. The maximum rate of carboxylation of Rubisco, Vcmax, is routinely estimated from gas exchange using the Farquhar, von Caemmerer & Berry 1980 model of photosynthesis. As Vcmax allows mechanistic representation of photosynthesis, it has been incorporated into terrestrial biosphere models to estimate global primary productivity. However, doubts remain about previous estimates of Vcmax for globally important biomes, such as moist forests, both in tropical and temperate regions. In my thesis, I present a survey of Vcmax values – calculated assuming infinite mesophyll conductance - along a 3,300-meter elevation gradient from lowland western Amazon to the Andean tree line in Peru; this region is home to the largest moist forest on Earth. Large variations in Vcmax were found within and across the 18 field sites. As hypothesised, when estimated at a common measuring temperature (25°C), average Vcmax values of lowland Amazon trees were significantly lower than that of Andean trees. When data for the lowland Amazon and upland Andean trees were combined, the resultant mean tropical Vcmax value was lower than that of temperate trees reported in past studies. My analysis points to low Vcmax of Peruvian tropical trees being linked to limitations in phosphorus supply, and to a high proportion of Rubisco being inactive. The second part of my thesis investigated how mesophyll conductance influences the estimation of Vcmax for several Australian tropical (i.e. warm-adapted) and temperate (i.e. cool-adapted) moist-forest trees. Consistent with previous glasshouse studies, the selected tropical tree species exhibited significantly lower Vcmax values than their temperate counterparts. Importantly, I showed, for the first time, that the Vcmax estimated on the basis of intercellular CO2 partial pressure was equivalent to that on the basis of chloroplastic CO2 partial pressure, when using appropriate Michaelis-Menten constants for CO2 and O2. Thus, low mesophyll conductance in tropical moist forest is unlikely to account for the low estimates of Vcmax found in the Peruvian field work study. Finally, mechanisms underpinning development of photosynthesis in tropical moist forest trees, which include ontogenetic changes in leaf anatomy, and mesophyll and stomatal conductances, were examined. Key components of photosynthesis such as Vcmax, maximum electron transport rate and chlorophyll content increased synchronously during expansion, accompanied by development of leaf internal structures such as intercellular air spaces and mesophyll cells. The balance between photosynthetic carbon uptake and respiratory release changed dramatically during leaf development, reflecting a two-fold decline in area-based rates of …

Subjects/Keywords: Photosynthesis; tropical trees; temperate trees; mesophyll conductance

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APA (6^th Edition):

Abdul Bahar, N. H. (2016). Photosynthetic characterisation of tropical and temperate rainforest species . (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/117236

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):

Abdul Bahar, Nur Hazwani. “Photosynthetic characterisation of tropical and temperate rainforest species .” 2016. Thesis, Australian National University. Accessed March 04, 2021. http://hdl.handle.net/1885/117236.

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

MLA Handbook (7^th Edition):

Abdul Bahar, Nur Hazwani. “Photosynthetic characterisation of tropical and temperate rainforest species .” 2016. Web. 04 Mar 2021.

Vancouver:

Abdul Bahar NH. Photosynthetic characterisation of tropical and temperate rainforest species . [Internet] [Thesis]. Australian National University; 2016. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1885/117236.

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

Council of Science Editors:

Abdul Bahar NH. Photosynthetic characterisation of tropical and temperate rainforest species . [Thesis]. Australian National University; 2016. Available from: http://hdl.handle.net/1885/117236

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

University of North Texas

4. Monteleone, Susan Elaine. Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela.

Degree: 1997, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc279052/

► Light spectra distributions were measured in two different montane forests: temperate and tropical. Spectral light measurements were made in different sized canopy gaps in the… (more)

Subjects/Keywords: Light spectra; Montane forests; Temperate forests; Tropical forests; Light.; Forest canopy gaps – Oregon.; Forest canopies – Venezuela.

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

APA (6^th Edition):

Monteleone, S. E. (1997). Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc279052/

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):

Monteleone, Susan Elaine. “Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela.” 1997. Thesis, University of North Texas. Accessed March 04, 2021. https://digital.library.unt.edu/ark:/67531/metadc279052/.

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

MLA Handbook (7^th Edition):

Monteleone, Susan Elaine. “Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela.” 1997. Web. 04 Mar 2021.

Vancouver:

Monteleone SE. Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela. [Internet] [Thesis]. University of North Texas; 1997. [cited 2021 Mar 04]. Available from: https://digital.library.unt.edu/ark:/67531/metadc279052/.

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

Council of Science Editors:

Monteleone SE. Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela. [Thesis]. University of North Texas; 1997. Available from: https://digital.library.unt.edu/ark:/67531/metadc279052/

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

University of Georgia

5. O'Connor, Megan Heather. Effect of silage additives on in vitro forage digestion and performance of cattle fed four different silages.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/29277

► Temperate corn silage is often produced, but increased land utilization may occur if heat and drought resistant alternative forages are ensiled during late summer and… (more)

Subjects/Keywords: Silage; Inoculant,Temperate corn; Tropical corn; Pearl millet sorghum; Fermentation; Rumen

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APA (6^th Edition):

O'Connor, M. H. (2014). Effect of silage additives on in vitro forage digestion and performance of cattle fed four different silages. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/29277

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):

O'Connor, Megan Heather. “Effect of silage additives on in vitro forage digestion and performance of cattle fed four different silages.” 2014. Thesis, University of Georgia. Accessed March 04, 2021. http://hdl.handle.net/10724/29277.

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

MLA Handbook (7^th Edition):

O'Connor, Megan Heather. “Effect of silage additives on in vitro forage digestion and performance of cattle fed four different silages.” 2014. Web. 04 Mar 2021.

Vancouver:

O'Connor MH. Effect of silage additives on in vitro forage digestion and performance of cattle fed four different silages. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10724/29277.

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

Council of Science Editors:

O'Connor MH. Effect of silage additives on in vitro forage digestion and performance of cattle fed four different silages. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/29277

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

University of California – Berkeley

6. Stuart, Stephanie Alexandra. Cold Comfort: Diversification and Adaptive Evolution across Latitudinal Gradients.

Degree: Integrative Biology, 2011, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/3ph7c2nj

► Angiosperms originated during a prolonged climatic greenhouse, and their early fossil record comes exclusively from low paleolatitudes. Thus, the ancestral ecological niche of flowering plants… (more)

▼ Angiosperms originated during a prolonged climatic greenhouse, and their early fossil record comes exclusively from low paleolatitudes. Thus, the ancestral ecological niche of flowering plants was most likely tropical. Tropical origins have shaped the subsequent ecological boundaries and evolutionary opportunities faced by descendents of these ancestors. This has had profound consequences for the subsequent diversification and ecology of this large and important group. Here, these consequences are explored from three different points of view, and at three different scales, with the goal of understanding the evolution of freezing-tolerant clades and the traits that facilitate their survival.Chapter 1 begins with a broad view of angiosperm evolution, encompassing the entire clade at a global scale. It uses phylogenetically independent contrasts to test the relative contributions of area, latitude, and climate to diversification patterns through time. The analysis shows that expansions in latitudinal range, rather than expansions in total area, are the strongest correlate of increased diversification through the history of this clade. Phylogenetically independent results are then compared with present-day patterns. The present-day latitudinal diversity gradient is demonstrated to be the result of a tropical origin rather than intrinsically higher speciation rates in the tropics.The origin of the pattern seen in Chapter 1 is explored in Chapter 2, by examining whether greater functional diversity occurs in wet tropical environments, which are the putative ancestral niche of flowering plants, or through adaptation to seasonal environments. Three different rainforest sites in Australia are studied. A wet tropical community is contrasted with two seasonal communities: one which is seasonally dry, and another which is seasonally cold. A link between seasonality and increased functional diversity is demonstrated for traits relating to water use and cold tolerance. A new method is presented for testing the relative contribution of phylogenetic niche conservatism to shifts in trait means between communities. This method is used to demonstrate that, in these three forests, traits relating to successional status are conserved, while traits relating to water used and cold tolerance are evolutionarily labile.In Chapter 3, a specific hypothesis about the origins of cold tolerance is presented. It is argued that seasonally dry environments could provide an evolutionary stepping stone between wet tropical and temperate environments, based on a known link between molecular mechanisms of drought and freezing acclimation. Individuals from seven eudicot clades are collected from the same system of wet tropical, dry tropical, and temperate forests used in Chapter 2. On being subjected to a controlled freezing profile, plants from the dry tropical forest show considerably more resistance to damage than their relatives from the wet tropical environment. This demonstrates that acclimation to drought is a plausible pathway for the evolution of…

Subjects/Keywords: Biology; Ecology; Evolution & development; Angiosperm Diversification; Cold Tolerance; Evolution of Freezing Tolerance; Phylogenetic Niche Conservatism; Temperate Radiation; Tropical Temperate Comparison

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APA (6^th Edition):

Stuart, S. A. (2011). Cold Comfort: Diversification and Adaptive Evolution across Latitudinal Gradients. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/3ph7c2nj

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):

Stuart, Stephanie Alexandra. “Cold Comfort: Diversification and Adaptive Evolution across Latitudinal Gradients.” 2011. Thesis, University of California – Berkeley. Accessed March 04, 2021. http://www.escholarship.org/uc/item/3ph7c2nj.

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

MLA Handbook (7^th Edition):

Stuart, Stephanie Alexandra. “Cold Comfort: Diversification and Adaptive Evolution across Latitudinal Gradients.” 2011. Web. 04 Mar 2021.

Vancouver:

Stuart SA. Cold Comfort: Diversification and Adaptive Evolution across Latitudinal Gradients. [Internet] [Thesis]. University of California – Berkeley; 2011. [cited 2021 Mar 04]. Available from: http://www.escholarship.org/uc/item/3ph7c2nj.

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

Council of Science Editors:

Stuart SA. Cold Comfort: Diversification and Adaptive Evolution across Latitudinal Gradients. [Thesis]. University of California – Berkeley; 2011. Available from: http://www.escholarship.org/uc/item/3ph7c2nj

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

University of Wisconsin – Milwaukee

7. McKenney, Kaitlin Claire. Evaluating the Influence of Environmental Factors on the Rate of Extra-Pair Matings in Tropical and Temperate Populations of the House Wren (Troglodytes Aedon).

Degree: MS, Biological Sciences, 2013, University of Wisconsin – Milwaukee

URL: https://dc.uwm.edu/etd/583

► Considerable variation exists in the rate of extra-pair matings (EPMs) in birds. Environmental variability likely influences EPM rates within species, but the effects of… (more)

Subjects/Keywords: Environment; Extra-Pair Mating; House Wren; Temperate; Tropical; Ecology and Evolutionary Biology; Genetics; Molecular Biology

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

APA (6^th Edition):

McKenney, K. C. (2013). Evaluating the Influence of Environmental Factors on the Rate of Extra-Pair Matings in Tropical and Temperate Populations of the House Wren (Troglodytes Aedon). (Thesis). University of Wisconsin – Milwaukee. Retrieved from https://dc.uwm.edu/etd/583

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):

McKenney, Kaitlin Claire. “Evaluating the Influence of Environmental Factors on the Rate of Extra-Pair Matings in Tropical and Temperate Populations of the House Wren (Troglodytes Aedon).” 2013. Thesis, University of Wisconsin – Milwaukee. Accessed March 04, 2021. https://dc.uwm.edu/etd/583.

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

MLA Handbook (7^th Edition):

McKenney, Kaitlin Claire. “Evaluating the Influence of Environmental Factors on the Rate of Extra-Pair Matings in Tropical and Temperate Populations of the House Wren (Troglodytes Aedon).” 2013. Web. 04 Mar 2021.

Vancouver:

McKenney KC. Evaluating the Influence of Environmental Factors on the Rate of Extra-Pair Matings in Tropical and Temperate Populations of the House Wren (Troglodytes Aedon). [Internet] [Thesis]. University of Wisconsin – Milwaukee; 2013. [cited 2021 Mar 04]. Available from: https://dc.uwm.edu/etd/583.

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

Council of Science Editors:

McKenney KC. Evaluating the Influence of Environmental Factors on the Rate of Extra-Pair Matings in Tropical and Temperate Populations of the House Wren (Troglodytes Aedon). [Thesis]. University of Wisconsin – Milwaukee; 2013. Available from: https://dc.uwm.edu/etd/583

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

Brigham Young University

8. Obregon, Oliver. Evaluating Climate Change Effects in Two Contrasting Reservoirs Using Two-Dimensional Water Quality and Hydrodynamic Models.

Degree: PhD, 2012, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4093&context=etd

► I analyzed and compared impacts from global climate change (GCC) and land use change to Deer Creek (United States) a temperate reservoir and Aguamilpa… (more)

▼ I analyzed and compared impacts from global climate change (GCC) and land use change to Deer Creek (United States) a temperate reservoir and Aguamilpa (Mexico), a tropical reservoir by using calibrated CE-QUAL-W2 (W2) water quality and hydrodynamic models based on field data over an extended time period. I evaluated and compared the sensitivity to predicted GCC and land use changes. I individually evaluated changes to air temperature (TAIR), inflow rates (Q), and nutrient loads (PO4-P and NO3-NO2-N) followed by analysis of worst case scenarios. I developed analysis methods using indexes to represent the total reservoir change calculated using the total parameter mass (i.e., algae, dissolved oxygen, total dissolved solids) normalized by the reservoir volume to eliminate apparent mass changes due to volume changes. These indexes have units of average concentrations, but are better thought of as a global reservoir index or normalized concentration. These indexes allow analysis of the total reservoir and not just specific zones. Total normalized algal concentrations were impacted more by changes in nutrient inflows (land use) in both reservoirs than to changes in TAIR and Q. For Deer Creek, PO4-P changes significantly increased normalized algal concentrations in the reservoir and in dam releases when PO4-P inflow was increased by 50%. Aguamilpa was more sensitive to NO3-NO2-N changes, exhibiting significant increases in normalized algal concentration for the +50% NO3-NO2-N simulation. Both reservoirs showed small changes to normalized algal concentration for the +3ºC TAIR simulation with the largest changes occurring during warm seasons. However, Deer Creek exhibited decreased total algal levels when TAIR was increased by 3ºC while Aguamilpa showed increased total algal levels with the 3ºC increase in TAIR. These contrasting trends, a decrease in Deer Creek and an increase in Aguamilpa, were produced by algae succession processes. Changes in Q affected normalized algal concentration in both reservoirs in different ways. In Aguamilpa, total algal levels increased under dry conditions while Deer Creek showed little general change associated with flow changes. Worst case scenario simulations, which included changing more than one parameter, showed that GCC changes can cause large impacts if they occur simultaneously with high nutrient loadings. These results begin to show how GCC could impact reservoirs and how these impacts compare to potential impacts from land use change. The results show that both temperate and tropical reservoirs are impacted by GCC but are more sensitive to nutrients. The methods, plots, and tools developed in this study can assist water managers in evaluating and studying GCC and land use changes effects in reservoirs worldwide.

Subjects/Keywords: climate change; water quality modeling; tropical reservoir; temperate reservoir; Civil and Environmental Engineering

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

APA (6^th Edition):

Obregon, O. (2012). Evaluating Climate Change Effects in Two Contrasting Reservoirs Using Two-Dimensional Water Quality and Hydrodynamic Models. (Doctoral Dissertation). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4093&context=etd

Chicago Manual of Style (16^th Edition):

Obregon, Oliver. “Evaluating Climate Change Effects in Two Contrasting Reservoirs Using Two-Dimensional Water Quality and Hydrodynamic Models.” 2012. Doctoral Dissertation, Brigham Young University. Accessed March 04, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4093&context=etd.

MLA Handbook (7^th Edition):

Obregon, Oliver. “Evaluating Climate Change Effects in Two Contrasting Reservoirs Using Two-Dimensional Water Quality and Hydrodynamic Models.” 2012. Web. 04 Mar 2021.

Vancouver:

Obregon O. Evaluating Climate Change Effects in Two Contrasting Reservoirs Using Two-Dimensional Water Quality and Hydrodynamic Models. [Internet] [Doctoral dissertation]. Brigham Young University; 2012. [cited 2021 Mar 04]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4093&context=etd.

Council of Science Editors:

Obregon O. Evaluating Climate Change Effects in Two Contrasting Reservoirs Using Two-Dimensional Water Quality and Hydrodynamic Models. [Doctoral Dissertation]. Brigham Young University; 2012. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4093&context=etd

Edith Cowan University

9. Turco, Aldo. Comparisons of habitat use and diet of herbivorous kyphosids (Genus Kyphosus) in tropical and temperate reefs.

Degree: 2017, Edith Cowan University

URL: https://ro.ecu.edu.au/theses/1947

► Kyphosids are a well-represented group of mainly herbivorous fishes distributed worldwide. Species within the genus Kyphosus are commonly found in both tropical and temperate areas,… (more)

▼ Kyphosids are a well-represented group of mainly herbivorous fishes distributed worldwide. Species within the genus Kyphosus are commonly found in both tropical and temperate areas, with Western Australia having especially high Kyphosus diversity and abundance compared to other regions. Despite being common fishes, much of the ecology of this Genus has not been described. The aim of this study is to compare habitat and food resource use of Kyphosus species in both tropical and temperate reef areas of Western Australia to provide new information about their ecological roles in these systems. To achieve this, the relationship between the abundances of three temperate species (K. sydneyanus, K. gladius, and K. cornelii) and environmental characteristics has been investigated across 20 sites within Marmion Marine Park, on the south-west coast of Australia. All temperate Kyphosus species were found to be significantly more abundant in high-relief reef areas (P < 0.01) and particularly inshore areas (0 to 1 nm from the coast). Juveniles (Lt < 30 cm) were present only in shallow reefs (0 to 6 m) and mostly inshore. Distance-based redundancy analysis showed that most of the variability in juvenile abundance (72-77%) was explained by reef structures (i.e. number of arches, caves, drop-offs, and general vertical relief) and algal assemblages (i.e. E. radiata, green algae, and Sargassum spp.). Changes in abundance of adult fish (Lt ≥ 30cm) were less strongly related to environmental variables (52- 58%), although the number of caves and drop-offs was positively correlated with all three species. Analysis of the stomach contents of K. sydneyanus, K. gladius, and K. cornelii showed strong differences in diet composition between all species (p < 0.001). An ontogenetic shift in was also present in the first two species (p < 0.001). K. sydneyanus and K. gladius consumed mostly brown macroalgae. However, K. sydneyanus consumed more Sargassum spp. (up to 44% in adults), while K. gladius generally had a higher content of E. radiata in their stomachs (up to 47% in adults). Juveniles of both species consumed less kelp and Sargassum than adults and more green epiphytes (e.g. Derbesia sp.) and red algae (Hypnea sp.). Conversely, the diet of K. cornelii consisted almost entirely of red and green epiphytes, such as Hypnea sp. (30-33%) and Ulva sp. (15- 31%) at both life stages. These results indicate that both K. sydneyanus and K. gladius act as browsers as adults, whilst K. cornelii are grazers. The analyses of the head, mouth, and teeth morphological traits, although showing significant (p < 0.001) differences among species, are not good predictors of diet. In the coral reef area of Ningaloo Reef, situated in the north-west corner of Western Australia, all Kyphosus species had a higher number of adults on shallow reef slopes exposed to prevailing waves, while juveniles were found predominantly inshore. Environmental variables explained much of the variation in abundances of all surveyed species, in particular of adult K. bigibbus (92%), and…

Subjects/Keywords: Marine; Ecology; Fish Ecology; Temperate; Tropical; Kyphosidae; Kyphosus; Ecology and Evolutionary Biology

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

APA (6^th Edition):

Turco, A. (2017). Comparisons of habitat use and diet of herbivorous kyphosids (Genus Kyphosus) in tropical and temperate reefs. (Thesis). Edith Cowan University. Retrieved from https://ro.ecu.edu.au/theses/1947

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):

Turco, Aldo. “Comparisons of habitat use and diet of herbivorous kyphosids (Genus Kyphosus) in tropical and temperate reefs.” 2017. Thesis, Edith Cowan University. Accessed March 04, 2021. https://ro.ecu.edu.au/theses/1947.

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

MLA Handbook (7^th Edition):

Turco, Aldo. “Comparisons of habitat use and diet of herbivorous kyphosids (Genus Kyphosus) in tropical and temperate reefs.” 2017. Web. 04 Mar 2021.

Vancouver:

Turco A. Comparisons of habitat use and diet of herbivorous kyphosids (Genus Kyphosus) in tropical and temperate reefs. [Internet] [Thesis]. Edith Cowan University; 2017. [cited 2021 Mar 04]. Available from: https://ro.ecu.edu.au/theses/1947.

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

Council of Science Editors:

Turco A. Comparisons of habitat use and diet of herbivorous kyphosids (Genus Kyphosus) in tropical and temperate reefs. [Thesis]. Edith Cowan University; 2017. Available from: https://ro.ecu.edu.au/theses/1947

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

Addis Ababa University

10. TESFAYE, ALEMNEW. INDEX PROPERTIES, SHEAR STRENGTH AND DYNAMIC PROPERTIES OF SOILS FOUND IN DESSIE .

Degree: 2013, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/5631

► The town of Dessie is located in North part of Ethiopia. It has a lat itude 11’80 N and longitude 39’380E with the elevat ion… (more)

▼ The town of Dessie is located in North part of Ethiopia. It has a lat itude 11’80 N and longitude 39’380E with the elevat ion between 2470 and 2550 meter above sea level. The topography of the town is mainly hills with some small flat on its North sides. A lot of civil engineering structures are under construction; however, nothing has been done on the investigation of soil with respect to the intended urban development plan. Therefore, the objective of the research is to investigate some of the engineering properties of soils found in Dessie town. The engineering behavior of soils formed under temperate or tropical conditions is determined by certain physical characteristics designated as engineering properties. In practice the determination of all the engineering properties of soils is expensive. Index properties are simpler and cheaper engineering characteristics which are indicative of some engineering properties and essential parameters for soil classification. Most geotechnical problems such as bearing capacity, lateral earth pressure and slope stability are related to the shear strength of a soil. All the problems of soil engineering are related in one way or the other with the shear strength of the soils. The nature and distribution of earthquake damage is strongly influenced by the response of soils to cyclic loading. Design of geotechnical engineering problems that involve dynamic loading of soils and soil-structure interaction systems requires the determination of dynamic soil properties. The response of soil to cyclic loading is determined mainly by the shear modulus and damping characteristics of the soil. In Ethiopia, areas close to the Ethiopian rift valley are prone to damaging by earthquakes. Dessie is located in the rift valley of Ethiopia; where active volcanic eruptions and earth quake are taking place. However, little experimental work has so far been done in assessing the dynamic properties of soils found in rift valley areas. The index property investigation in this study includes; specific gravity, particle size distribution, Atterberg limits and free swell tests. According to the test results of this study, moisture content ranges between 23-36%, Plasticity Index ranges between 22–38%, clay fraction ranges between 50-71%, free swell ranges between 65-130% and Specific Gravity ranges between 2.65-2.84. Unconfined compresion strength test is a fast and economical means of approximating the shear strength at shallow depths. For shear strength parameters determination, undisturbed soil samples were collected from 3m depth. The unconfined compression value of tested soils is the range of 432-623kPa. The shear modulus and damping ratio values of soils commonly found in Dessie were determined using cyclic simple shear testing machine on undisturbed samples. The tests were conducted as a function of cyclic strain amplitude of 0.01 %, 0.1 %, 1 %, 2.5 %, and 5 % under the axial pressures of 200 kPa, 300 kPa and 400 kPa. The value of shear modules is the range of… Advisors/Committee Members: Dr.Ing. SAMUEL TADESSE (advisor).

Subjects/Keywords: Shear strength and Dynamic properties soils found in Dessie; soils formed under temperate or tropical conditions

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

APA (6^th Edition):

TESFAYE, A. (2013). INDEX PROPERTIES, SHEAR STRENGTH AND DYNAMIC PROPERTIES OF SOILS FOUND IN DESSIE . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/5631

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):

TESFAYE, ALEMNEW. “INDEX PROPERTIES, SHEAR STRENGTH AND DYNAMIC PROPERTIES OF SOILS FOUND IN DESSIE .” 2013. Thesis, Addis Ababa University. Accessed March 04, 2021. http://etd.aau.edu.et/dspace/handle/123456789/5631.

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

MLA Handbook (7^th Edition):

TESFAYE, ALEMNEW. “INDEX PROPERTIES, SHEAR STRENGTH AND DYNAMIC PROPERTIES OF SOILS FOUND IN DESSIE .” 2013. Web. 04 Mar 2021.

Vancouver:

TESFAYE A. INDEX PROPERTIES, SHEAR STRENGTH AND DYNAMIC PROPERTIES OF SOILS FOUND IN DESSIE . [Internet] [Thesis]. Addis Ababa University; 2013. [cited 2021 Mar 04]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/5631.

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

Council of Science Editors:

TESFAYE A. INDEX PROPERTIES, SHEAR STRENGTH AND DYNAMIC PROPERTIES OF SOILS FOUND IN DESSIE . [Thesis]. Addis Ababa University; 2013. Available from: http://etd.aau.edu.et/dspace/handle/123456789/5631

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

University of Pretoria

11. Erasmus, Magdel. Formation and Development of Tropical Temperate Troughs across Southern Africa as Simulated by a State-of-the-art Coupled Model.

Degree: MSc, Geography, Geoinformatics and Meteorology, 2019, University of Pretoria

URL: http://hdl.handle.net/2263/73478

► A Tropical Temperate Trough (TTT) is a type of weather system that links the tropics and the extra-tropics across southern Africa. TTT events have been… (more)

▼ A Tropical Temperate Trough (TTT) is a type of weather system that links the tropics and the extra-tropics across southern Africa. TTT events have been studied statistically in detail, but very little research has been done to study this phenomenon dynamically and especially on a seasonal scale. This study therefore focuses on the predictability of the characteristics of TTTs across southern Africa on a seasonal scale, by using a state-of-the-art seasonal forecasting model, namely the GloSea5 developed by the UK Met Office. Gridded hindcast data for the months of November, December, January and February from 1996/1997 to 2009/2010 are compared to observed data. The different ensemble members of the GloSea5 model (with lead-times of 1 week up to 2 months) are first compared separately to the observed data, after which the model average, with a 0-month, a 1-month and a 2-month lead-time, is calculated and also compared to the observed dataset. TTT events have distinctive characteristics during the formation and the development phases. Most prominent of these characteristics are the cloud bands associated with these weather systems, which have a north-west to south-east orientation and move from west to east across southern Africa. To identify the TTTs, daily outgoing long-wave radiation values are processed by a Meteorological Robot (MetBot), with a strict criterion to identify the cloud bands that characterise these systems. The MetBot’s algorithm produces the information needed to further investigate the different characteristics of TTTs, such as the frequency, the location and the intensity of these systems. Analysis of the MetBot output includes calculating the Root Mean Square Error, the percentage error and in some cases the percentage deviation of the number of cloud bands, as well as the anchor point, the centroid position, the area, the tilt and the minimum and maximum OLR values of the cloud bands. This investigation revealed that the characteristics of TTT events can to some extent be predicted on a seasonal scale for the summer rainfall season of southern Africa. The model used in this study fared particularly well with a 1-month lead-time forecast (compared to a 0-month and a 2-month lead-time forecast). The intensity and the location of the cloud bands associated with TTT events are forecast with a smaller percentage error than the frequency of these systems, as the frequency of TTTs tend to be significantly under-predicted by the model. For some predicted quantities, such as the area of the cloud bands, a bias-adjustment is necessary which produces significantly better results with smaller percentage errors. In the conclusions, suggestions are made on possible future studies, and how to develop this study further to create seasonal forecasts with higher skill with special regards to TTT events. Advisors/Committee Members: Landman, W.A. (Willem Adolf), 1964- (advisor), Engelbrecht, Christien Johanna (coadvisor).

Subjects/Keywords: Meteorology; Tropical Temperate Troughs; Seasonal forecasting; Model evaluation; UCTD

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APA (6^th Edition):

Erasmus, M. (2019). Formation and Development of Tropical Temperate Troughs across Southern Africa as Simulated by a State-of-the-art Coupled Model. (Masters Thesis). University of Pretoria. Retrieved from http://hdl.handle.net/2263/73478

Chicago Manual of Style (16^th Edition):

Erasmus, Magdel. “Formation and Development of Tropical Temperate Troughs across Southern Africa as Simulated by a State-of-the-art Coupled Model.” 2019. Masters Thesis, University of Pretoria. Accessed March 04, 2021. http://hdl.handle.net/2263/73478.

MLA Handbook (7^th Edition):

Erasmus, Magdel. “Formation and Development of Tropical Temperate Troughs across Southern Africa as Simulated by a State-of-the-art Coupled Model.” 2019. Web. 04 Mar 2021.

Vancouver:

Erasmus M. Formation and Development of Tropical Temperate Troughs across Southern Africa as Simulated by a State-of-the-art Coupled Model. [Internet] [Masters thesis]. University of Pretoria; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2263/73478.

Council of Science Editors:

Erasmus M. Formation and Development of Tropical Temperate Troughs across Southern Africa as Simulated by a State-of-the-art Coupled Model. [Masters Thesis]. University of Pretoria; 2019. Available from: http://hdl.handle.net/2263/73478

University of Illinois – Urbana-Champaign

12. White, Wendy G. Sugar, biomass and biofuel potential of temperate by tropical maize crosses.

Degree: MS, 0030, 2010, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/16913

► In order to shift society???s dependence away from petroleum the U.S. Department of Energy has set goals to replace 30% of petroleum based fuels with… (more)

▼ In order to shift society???s dependence away from petroleum the U.S. Department of Energy has set goals to replace 30% of petroleum based fuels with biofuel by the year 2030. This has produced an unprecedented interest in producing biofuels such as ethanol from plant biomass. A wide variety of potential biomass sources are currently under consideration, including grass species that employ the C4 pathway for photosynthesis, which include the perennial grasses, miscanthus (Miscanthus x giganteus) and switchgrass (Panicum virgatum L.), maize (Zea mays L.), sugarcane (Saccharum spp.), and sorghum (Sorghum bicolor L. Moench). These plants exhibit the highest potential for biofuel production because, depending upon the species, they can accumulate sugar, starch and/or lignocellulosic biomass. The perennial grasses are being considered for lignocellulosic fermentation, but this biofuel conversion process is not yet commercially viable. Current ethanol supplies are primarily produced via direct fermentation from the grain of maize in the U.S. and from sugarcane in Brazil. Similar to sugarcane, maize has the ability to store soluable sugars in the stalk, particularly when grain formation is impeded, either through mechanical ear removal, male sterility, or reproductive asynchrony. When tropically-adapted photoperiod sensitive maize varieties are grown in temperate climates, they produce tall plants that produce little to no grain because pollen sheds from the tassel before the silks emerge from the ears. As a result photoassimilates are retained in the stalk as sugar. The growth and use of maize for stalk sugar is believed to have been the impetus for its domestication, and has been reportedly used for this purpose by the Aztecs and colonial Americans, and has been the subject of modern academic evaluations throughout the current and last century. Like many traits in maize, genotypic variation for stalk sugar, as well as other desirable biofuel traits (i.e. biomass, nitrogen use efficiency, and drought tolerance) is clearly present in both temperate and tropical materials, which indicates the potential for improvement from genetic selection. When temperate and tropical maize are crossed, the progeny plants are better adapted to a temperate climate and are still tall, but exhibit minimal lodging, produce little grain and have the potential to accumulate large amounts of sugar in the stalk, similar to sugarcane. These traits indicate that the temperate x tropical maize (TTM) hybrids may potentially have high value as both as a sugar and lignocellulosic biofuel feedstock. In order to better determine the utility of TTM as a dedicated biofuel crop, we evaluated a series of TTM hybrids in 2008 and 2009 for their biological potential, genetic variability, the impact of nitrogen (N) on biomass and stalk sugar, and the subsequent biofuel potential. The TTM hybrids produced on average nearly 11 U.S. tons of biomass/acre, and when grain formation was prevented by ear shoot-bagging. TTM produced over 4,360 lbs/acre of sugar, which was… Advisors/Committee Members: Below, Frederick E. (advisor).

Subjects/Keywords: Biofuel; Maize; Sugar; Biomass; Ethanol; Temperate X Tropical Maize

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APA (6^th Edition):

White, W. G. (2010). Sugar, biomass and biofuel potential of temperate by tropical maize crosses. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/16913

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):

White, Wendy G. “Sugar, biomass and biofuel potential of temperate by tropical maize crosses.” 2010. Thesis, University of Illinois – Urbana-Champaign. Accessed March 04, 2021. http://hdl.handle.net/2142/16913.

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

MLA Handbook (7^th Edition):

White, Wendy G. “Sugar, biomass and biofuel potential of temperate by tropical maize crosses.” 2010. Web. 04 Mar 2021.

Vancouver:

White WG. Sugar, biomass and biofuel potential of temperate by tropical maize crosses. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2010. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2142/16913.

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

Council of Science Editors:

White WG. Sugar, biomass and biofuel potential of temperate by tropical maize crosses. [Thesis]. University of Illinois – Urbana-Champaign; 2010. Available from: http://hdl.handle.net/2142/16913

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

13. Gondim, Manuella Virginia Salgueiro. Etude du transfert, de l'impact et de la dégradation de l'antibiotique sulfaméthoxazole dans les sols en contexte tropical et tempéré : Study of the transfer, impact and transformation of the antibiotic sulfametoxazol in soils in tropical and temperate contexts.

Degree: Docteur es, Océan, atmosphère, hydrologie, 2014, Grenoble; Universite Federal Du Pernambuco Recife

URL: http://www.theses.fr/2014GRENU052

► La disponibilité de la ressource en eau potable est en train de diminuer dans diverses régions, en lien avec la demande croissante d'eau douce, de… (more)

▼ La disponibilité de la ressource en eau potable est en train de diminuer dans diverses régions, en lien avec la demande croissante d'eau douce, de la demande en produits alimentaires (Agriculture et élevage) et des effets des changements climatiques au niveau mondial à cause de la croissance démographique. Les pratiques agricoles inadaptées peuvent conduire à des pollutions des eaux superficielles et souterraines par des pesticides, des produits pharmaceutiques, des métaux, des nutriments, ou des sédiments et colloïdes. L'augmentation de la demande en produits animaliers est un des principaux facteurs qui conduisent à l'augmentation de l'utilisation d'antibiotiques, notamment de la famille des sulfonamides comme le sulfametoxazole (SMX). Malgré les grandes quantités de SMX utilisées tant en santé humaine qu'animale, et malgré le risque de contamination des ressources en eau associés à ce type de molécule, leur devenir dans les sols est encore mal compris et est peu documenté. C'est dans ce contexte que nous avons entrepris l'étude des interactions physico-chimiques, la dégradation, l'impact et le transfert du SMX dans deux sols aux propriétés physico-chimiques similaires mais issus de zones géographiques différentes (Recife, Brésil et Mâcon, France), et présentant différents contextes climatiques (tropical et tempéré) et différents usages (urbain et agricole). L'étude des interactions physico-chimiques a consisté à caractériser les processus de sorption et leurs cinétiques ainsi que l'effet du pH des sols, en lien avec l'ionisabilité de la molécule de SMX (2 pKa). La dégradation (biotique et abiotique) de la molécule antibiotique a été évaluée pour 3 concentrations différentes (10-3, 10-4 et 10-5M) pour évaluer l'effet des propriétés des sols sur la toxicité et la biodisponibilité du SMX. Les sols de Macon et Recife non contaminés au SMX présentent une biodiversité importante et semblable comme l'ont montré les indices de Shannon (H') et de Simpson. L'addition d'antibiotiques aux 2 sols modifie rapidement leur biodiversité microbienne et induit des changements de structures et de composition de la communauté bactérienne. Une bactérie du genre Arthrobacter est spécifiquement stimulée dans les deux sols par l'ajout de SMX, mais elle n'est pas cultivable, en revanche, nous avons pu isoler une souche de Burkholderia fortement stimulée par la présence de l'antibiotique, qui représente plus de 30% de la communauté bactérienne et qui présente des capacités de dégradation de l'antibiotique très importantes. La dégradation du SMX dans les deux sols s'avère rapide à faible concentration (10-5M) et plus lente (Mâcon) voire inexistante (Recife) à plus forte concentration (10-3M). La mobilité du SMX a été évaluée par des essais de transport en colonnes de sols remaniés conduites à 0,2; 0,45 et 0,7 mL.min-1. Les concentrations en SMX étant déterminées par HPLC-UV. L'identification des processus hydrodynamiques dans les deux sols et des processus de transfert du SMX a été réalisée avec le modèle de convection - dispersion avec… Advisors/Committee Members: Martins, Jean (thesis director), Celso Dantas Antonino, Antônio (thesis director).

Subjects/Keywords: Polluants organiques émergeants; Sols tropicaux et tempérés; Transfert réactif; Sorption; Biodégradation; Impact; Emerging organic pollutants; Tropical and temperate soil; Reactif transfer; Sorption; Biodegradation; Impact; SMX; Sorção; Transporte; Biodegradação; Solo; 550

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

APA (6^th Edition):

Gondim, M. V. S. (2014). Etude du transfert, de l'impact et de la dégradation de l'antibiotique sulfaméthoxazole dans les sols en contexte tropical et tempéré : Study of the transfer, impact and transformation of the antibiotic sulfametoxazol in soils in tropical and temperate contexts. (Doctoral Dissertation). Grenoble; Universite Federal Du Pernambuco Recife. Retrieved from http://www.theses.fr/2014GRENU052

Chicago Manual of Style (16^th Edition):

Gondim, Manuella Virginia Salgueiro. “Etude du transfert, de l'impact et de la dégradation de l'antibiotique sulfaméthoxazole dans les sols en contexte tropical et tempéré : Study of the transfer, impact and transformation of the antibiotic sulfametoxazol in soils in tropical and temperate contexts.” 2014. Doctoral Dissertation, Grenoble; Universite Federal Du Pernambuco Recife. Accessed March 04, 2021. http://www.theses.fr/2014GRENU052.

MLA Handbook (7^th Edition):

Gondim, Manuella Virginia Salgueiro. “Etude du transfert, de l'impact et de la dégradation de l'antibiotique sulfaméthoxazole dans les sols en contexte tropical et tempéré : Study of the transfer, impact and transformation of the antibiotic sulfametoxazol in soils in tropical and temperate contexts.” 2014. Web. 04 Mar 2021.

Vancouver:

Gondim MVS. Etude du transfert, de l'impact et de la dégradation de l'antibiotique sulfaméthoxazole dans les sols en contexte tropical et tempéré : Study of the transfer, impact and transformation of the antibiotic sulfametoxazol in soils in tropical and temperate contexts. [Internet] [Doctoral dissertation]. Grenoble; Universite Federal Du Pernambuco Recife; 2014. [cited 2021 Mar 04]. Available from: http://www.theses.fr/2014GRENU052.

Council of Science Editors:

Gondim MVS. Etude du transfert, de l'impact et de la dégradation de l'antibiotique sulfaméthoxazole dans les sols en contexte tropical et tempéré : Study of the transfer, impact and transformation of the antibiotic sulfametoxazol in soils in tropical and temperate contexts. [Doctoral Dissertation]. Grenoble; Universite Federal Du Pernambuco Recife; 2014. Available from: http://www.theses.fr/2014GRENU052

The Ohio State University

14. Bernal, Blanca. Carbon Pools And Profiles In Wetland Soils: The Effect Of Climate And Wetland Type.

Degree: MS, Natural Resources, 2008, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1218226611

► Wetlands are a large terrestrial carbon pool and play an important role in global carbon cycles as natural carbon sinks. Previous carbon studies have mainly… (more)

▼ Wetlands are a large terrestrial carbon pool and play an important role in global carbon cycles as natural carbon sinks. Previous carbon studies have mainly focused on boreal peatlands; little is known about carbon pools in temperate and tropical wetlands and their soil profiles. This study analyzes the variation of soil carbon with depth in two temperate (Ohio) and three tropical (humid and dry) wetlands in Costa Rica, and compares their total soil C pool as a first step toward determining C accumulation in wetland soils. The results indicate that these temperate wetlands have significantly greater (P < 0.01) C pools (17.6 kg C m^-2) than wetlands located in tropical climates (9.7 kg C m^-2) in the top 24 cm of soil. Carbon profiles showed a rapid decrease of concentrations with soil depth in the tropical sites, whereas in the temperate wetlands they tended to increase with depth, up to a maximum at 18-24 cm, after which they started decreasing. The two wetlands in Ohio had about ten times the mean total C concentration of adjacent upland soils (e. g., in Gahanna Woods, 161 g C kg^-1 were measured in the wetland, and 17 g C kg^-1 in the upland site), and their soil C pools were significantly higher (P < 0.01). Among the five wetland study sites, three main wetland types were identified – isolated forested, riverine flow-through, and slow-flow slough. In the top 24 cm of soil, isolated forested wetlands had the greatest pool (10.8 kg C m^-2), significantly higher (P < 0.05) than the other two types (7.9 kg C m^-2 in the flow-though and 8.0 kg C m^-2 in the slough), indicating that the type of organic matter entering into the system and the type of wetland may be key factors defining its soil C pool. The flow-through wetland in Ohio (Old Woman Creek) showed a significantly higher C pool (P < 0.05) in the permanently flooded location (18.5 kg C m^-2), than in the edge location with fluctuating hydrology, where the soil is inttermitently flooded (14.6 kg C m^-2). Advisors/Committee Members: Mitsch, William (Advisor).

Subjects/Keywords: Ecology; Environmental Science; Soil Sciences; carbon sequestration; temperate wetlands; tropical wetlands; hydrology; hydromorphology

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

APA (6^th Edition):

Bernal, B. (2008). Carbon Pools And Profiles In Wetland Soils: The Effect Of Climate And Wetland Type. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1218226611

Chicago Manual of Style (16^th Edition):

Bernal, Blanca. “Carbon Pools And Profiles In Wetland Soils: The Effect Of Climate And Wetland Type.” 2008. Masters Thesis, The Ohio State University. Accessed March 04, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1218226611.

MLA Handbook (7^th Edition):

Bernal, Blanca. “Carbon Pools And Profiles In Wetland Soils: The Effect Of Climate And Wetland Type.” 2008. Web. 04 Mar 2021.

Vancouver:

Bernal B. Carbon Pools And Profiles In Wetland Soils: The Effect Of Climate And Wetland Type. [Internet] [Masters thesis]. The Ohio State University; 2008. [cited 2021 Mar 04]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1218226611.

Council of Science Editors:

Bernal B. Carbon Pools And Profiles In Wetland Soils: The Effect Of Climate And Wetland Type. [Masters Thesis]. The Ohio State University; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1218226611

15. Macron, Clémence. Les Talwegs Tropicaux Tempérés en Afrique australe : mécanismes et évolution face au changement climatique (2010-2099) : Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099).

Degree: Docteur es, Géographie, 2014, Université de Bourgogne

URL: http://www.theses.fr/2014DIJOS057

►

Au sein de l’hémisphère sud, l’Afrique australe et le sud-ouest de l’océan Indien forment l’une des trois zones préférentielles de développement des interactions entre les… (more)

▼

Au sein de l’hémisphère sud, l’Afrique australe et le sud-ouest de l’océan Indien forment l’une des trois zones préférentielles de développement des interactions entre les tropiques et les moyennes latitudes. Il s’agit de la Zone de Convergence Sud-Indienne (ZCSI) où se forment, principalement en été austral, des systèmes synoptiques (entre 3 et 5 jours) caractérisés par des bandes nuageuses orientées nord-ouest/sud-est : les Talwegs Tropicaux-Tempérés (TTT). Cette recherche doctorale vise à améliorer les connaissances liées aux TTT, avec une étude sur la dynamique associée à ces systèmes et une analyse de leur évolution possible au cours du XXIème siècle. La première partie de l’étude s’attache à identifier les conditions favorables à la formation et au développement des TTT. Une classification en régimes de temps est utilisée pour identifier les TTT d’une part, et les perturbations des moyennes latitudes d’autre part, permettant de mieux documenter la variabilité spatio-temporelle des TTT et les conditions de leur développement. Ces événements sont responsables d’environ 20% des précipitations saisonnières sud-africaines. Cette contribution augmente selon un gradient ouest-est. La comparaison entre les deux classifications confirme que les perturbations des moyennes latitudes sont une condition nécessaire pour le développement de TTT, mais non suffisante. Dans les tropiques, des advections d’humidité depuis l’océan Atlantique tropical associées à un excès d'énergie statique humide sur le canal du Mozambique forment les conditions supplémentaires favorables à la convection atmosphérique profonde à proximité du continent. La seconde partie étudie comment les TTT, les précipitations et de manière plus générale le climat d’Afrique australe, pourraient évoluer au cours du XXIème siècle sous l’effet du forçage radiatif associé aux émissions de gaz à effet de serre (GES). Cette approche est multi-modèle (huit modèles climatiques sont retenus de l’exercice 5 du GIEC) et multi-trajectoire (RCP 8.5 et 2.6). Les huit modèles restituent convenablement les caractéristiques actuelles du climat d’Afrique australe ainsi que les bandes nuageuses associées aux TTT, tant en termes de variabilité spatiale que de fréquence d’occurrences. Sur le XXIème siècle, ils divergent sur l’évolution des précipitations saisonnières (NDJF). En revanche, ils convergent sur l’augmentation des quantités précipitées par jour de pluie sur le sud-est de l’Afrique australe. Ces changements ne sont pas à relier à une évolution spatio-temporelle des TTT, leur structure spatiale, leur fréquence d’occurrence et leur contribution aux précipitations restent stationnaires tout au long du siècle, mais à des événements pluviogènes extrêmes plus fréquents et plus intenses.

In the Southern Hemisphere, Southern Africa and the south-west Indian Ocean are one of the three preferred regions where interactions between the tropics and midlatitudes develop. This is the South Indian Convergence Zone (SICZ), where northwest-southeast oriented cloud bands form at the…

Advisors/Committee Members: Richard, Yves (thesis director), Pohl, Benjamin (thesis director).

Subjects/Keywords: Afrique australe; Talweg tropical-tempéré; Perturbation des moyennes latitudes; Interactions d’échelle; Classification; Modèles « système-Terre »; Changement climatique; RCP2.6; RCP 8.5; CMIP5; Southern Africa; Tropical-temperate tough; Midlatitude perturbations; Scale interactions; Classification; General circulation models; Climate change; RCP2.6; RCP 8.5; CMIP5; 551.5

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APA (6^th Edition):

Macron, C. (2014). Les Talwegs Tropicaux Tempérés en Afrique australe : mécanismes et évolution face au changement climatique (2010-2099) : Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099). (Doctoral Dissertation). Université de Bourgogne. Retrieved from http://www.theses.fr/2014DIJOS057

Chicago Manual of Style (16^th Edition):

Macron, Clémence. “Les Talwegs Tropicaux Tempérés en Afrique australe : mécanismes et évolution face au changement climatique (2010-2099) : Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099).” 2014. Doctoral Dissertation, Université de Bourgogne. Accessed March 04, 2021. http://www.theses.fr/2014DIJOS057.

MLA Handbook (7^th Edition):

Macron, Clémence. “Les Talwegs Tropicaux Tempérés en Afrique australe : mécanismes et évolution face au changement climatique (2010-2099) : Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099).” 2014. Web. 04 Mar 2021.

Vancouver:

Macron C. Les Talwegs Tropicaux Tempérés en Afrique australe : mécanismes et évolution face au changement climatique (2010-2099) : Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099). [Internet] [Doctoral dissertation]. Université de Bourgogne; 2014. [cited 2021 Mar 04]. Available from: http://www.theses.fr/2014DIJOS057.

Council of Science Editors:

Macron C. Les Talwegs Tropicaux Tempérés en Afrique australe : mécanismes et évolution face au changement climatique (2010-2099) : Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099). [Doctoral Dissertation]. Université de Bourgogne; 2014. Available from: http://www.theses.fr/2014DIJOS057

University of Florida

16. Ash, Kevin. A Cluster Analysis of Tropical Cyclone Trajectories in the South Indian Ocean The Influences of the El Nino-Southern Oscillation and the Subtropical Indian Ocean Dipole.

Degree: MS, Geography, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0041695

► Tropical cyclones (TCs) are a regular feature over the South Indian Ocean (SIO) during the austral warm season from November to April. The storms often… (more)

▼ Tropical cyclones (TCs) are a regular feature over the South Indian Ocean (SIO) during the austral warm season from November to April. The storms often pass in close proximity to the islands of Madagascar, Mauritius, and Reunion, or pass through the Mozambique Channel. In addition to threatening human lives, cyclones are also capable of negative societal impacts in this economically developing region, ruining crops and disrupting the region's busy shipping lanes. It is therefore important to investigate the causes and controls that shape the tracks of the SIO TCs. The goal of this research is to relate variability of TC motion to the oceanic-atmospheric circulation. Cluster analysis is employed to group SIO TC trajectories by their initial and final positions. The clusters are then used to compare group median index values that represent El Nin tildeo-Southern Oscillation (ENSO) and the Subtropical Indian Ocean Dipole (SIOD) using Kruskal-Wallis analysis of variance (ANOVA) on ranks and post-hoc multiple comparisons. ENSO is known to influence TC trajectories in the SIO through modulation of the semi-permanent SIO subtropical high. However, though ENSO plays a role in altering the oceanic-atmospheric environment within the basin, it is not always simultaneously associated with either a strong or weak subtropical high. The SIOD is known to exert strong influence on precipitation patterns in the SIO region, also through modulation of the SIO subtropical semi-permanent high. Both ENSO and SIOD have likewise been linked to shifts in the austral summer tropical-temperate troughs (TTTs) from the African continent to northeast of Madagascar over the western SIO. The results of the multiple comparison tests in this study suggest that both ENSO and SIOD are significantly associated with TC trajectories. This significant link between SIOD and SIO TCs has not been documented in the known SIO TC literature, and this study proposes TTTs as the physical mechanism responsible for the strong eastward component of TC motion when ENSO is in warm phase and SIOD is in negative phase. When ENSO is in cool phase and SIOD is simultaneously in positive phase, TC trajectories tend to show strong westward movement, remain farther north and do not recurve into the mid-latitude westerlies. This study is important because the findings suggest that anti-phase interactions of ENSO and SIOD frequently associate with anomalous westward or eastward TC trajectories. ( en ) Advisors/Committee Members: Matyas, Corene J. (committee chair), Fik, Timothy J. (committee member), Waylen, Peter R. (committee member).

Subjects/Keywords: Climate models; Climatology; Cyclones; Juries; Oceans; Temperate regions; Trajectories; Tropical climates; Tropical regions; Weather; analysis, climatology, cluster, cyclone, dipole, el, indian, madagascar, nino, ocean, subtropical, trajectory, tropical

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APA (6^th Edition):

Ash, K. (2010). A Cluster Analysis of Tropical Cyclone Trajectories in the South Indian Ocean The Influences of the El Nino-Southern Oscillation and the Subtropical Indian Ocean Dipole. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041695

Chicago Manual of Style (16^th Edition):

Ash, Kevin. “A Cluster Analysis of Tropical Cyclone Trajectories in the South Indian Ocean The Influences of the El Nino-Southern Oscillation and the Subtropical Indian Ocean Dipole.” 2010. Masters Thesis, University of Florida. Accessed March 04, 2021. https://ufdc.ufl.edu/UFE0041695.

MLA Handbook (7^th Edition):

Ash, Kevin. “A Cluster Analysis of Tropical Cyclone Trajectories in the South Indian Ocean The Influences of the El Nino-Southern Oscillation and the Subtropical Indian Ocean Dipole.” 2010. Web. 04 Mar 2021.

Vancouver:

Ash K. A Cluster Analysis of Tropical Cyclone Trajectories in the South Indian Ocean The Influences of the El Nino-Southern Oscillation and the Subtropical Indian Ocean Dipole. [Internet] [Masters thesis]. University of Florida; 2010. [cited 2021 Mar 04]. Available from: https://ufdc.ufl.edu/UFE0041695.

Council of Science Editors:

Ash K. A Cluster Analysis of Tropical Cyclone Trajectories in the South Indian Ocean The Influences of the El Nino-Southern Oscillation and the Subtropical Indian Ocean Dipole. [Masters Thesis]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0041695

17. Berg Hasper, Thomas. Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems.

Degree: 2015, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/40809

► Rising levels of atmospheric carbon dioxide concentration ([CO2]) and temperature have the potential to alter stomatal behavior and tree water use, which has implications for… (more)

▼ Rising levels of atmospheric carbon dioxide concentration ([CO2]) and temperature have the potential to alter stomatal behavior and tree water use, which has implications for forest hydrology and climate. Many models assume decreases in stomatal conductance (gs) and plant water use under rising [CO2], which has been invoked as the causes for the positive global trend in river runoff over the past century. Plant water use is, however, also affected by changes in temperature, precipitation, land use and management and climate change-induced alterations in ecosystem structure. Still, there is no consensus about the contribution of different drivers to temporal trends of evapotranspiration (ET) and river runoff. There is great variation in stomatal and photosynthetic responses to [CO2] and temperature among plant species, and the factors controlling it are still poorly understood, in particular for boreal and tropical tree species. This thesis investigated the effects of elevated [CO2] and temperature on the stomatal functioning, tree hydraulics, canopy leaf area and whole-tree water use of mature Picea abies and young Eucalyptus globulus trees grown in whole-tree chambers in boreal and temperate areas, respectively. In the boreal study, the tree-level experiment was complemented with data on historical trends and patterns in ET of large-scale boreal landscapes, using climate and runoff data from the past 50 years, in order to assess water-use responses to past climate change in Swedish boreal forests. The thesis also explored the temperature responses of photosynthesis as well as the taxonomic and functional controls of the large interspecific variation in stomatal CO2 responsiveness and photosynthetic capacity in a broad range of tropical woody species. Results demonstrated that neither mature P. abies nor young E. globulus saved water under elevated [CO2], and that warming did not increase their transpiration as decreased gs cancelled the effect of higher vapour pressure deficit in warmed air. Also, Swedish boreal ET increased over the past 50 years while runoff did not significantly change, with the increase in ET being related to increasing precipitation and forest standing biomass over time. In E. globulus, neither elevated [CO2] nor warming treatment affected gs, stomatal density or length, or leaf area-specific plant hydraulic conductance. Furthermore, elevated [CO2] increased both total canopy leaf area and tree water use, while warming did not have any significant influence on either of these variables. In the tropical studies, the optimum temperature for the maximum rate of photosynthetic electron transport (Jmax) was lower in the native than in the exotic species. The daytime peak leaf temperatures greatly exceeded (by up to 10 °C) the photosynthetic optimum temperatures, in particular in the native montane rainforest species. Lastly, all studied plant taxonomic groups exhibited stomatal closure responses to increased [CO2], but none of the functional characteristics investigated could explain the variation…

Subjects/Keywords: Climate change; Carbon dioxide; Temperature; Transpiration; Water use; Stomata; Tropical; Temperate; Boreal; Tree

…less obvious than in tropical and boreal forests. Temperate forest reforestation and… …Distribution of Earth’s natural tropical, temperate and boreal forests (adapted from… …km2 in tropical, temperate and boreal regions, representing ca. 30% of the world’s land… …uncertain. Worldwide, loss of tropical forests by logging and clearing to give space to human… …et al. 2011, respectively). 10 10 In temperate forests, the climate feedbacks are…

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APA (6^th Edition):

Berg Hasper, T. (2015). Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/40809

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):

Berg Hasper, Thomas. “Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems.” 2015. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed March 04, 2021. http://hdl.handle.net/2077/40809.

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

MLA Handbook (7^th Edition):

Berg Hasper, Thomas. “Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems.” 2015. Web. 04 Mar 2021.

Vancouver:

Berg Hasper T. Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2015. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2077/40809.

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

Council of Science Editors:

Berg Hasper T. Tree stomatal regulation and water use in a changing climate - From tropical to boreal ecosystems. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2015. Available from: http://hdl.handle.net/2077/40809

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

Louisiana State University

18. Radtke, Meghan Gabrielle. Tropical Pyramids: Dung Beetle Richness, Abundance, and Biomass.

Degree: PhD, 2006, Louisiana State University

URL: etd-02072007-101535 ; https://digitalcommons.lsu.edu/gradschool_dissertations/364

► Volume is a proxy for biomass in hard bodied arthropods (P < 0.0001). I constructed biomass-volume equations for Neotropical (P < 0.0001), temperate (P <… (more)

▼ Volume is a proxy for biomass in hard bodied arthropods (P < 0.0001). I constructed biomass-volume equations for Neotropical (P < 0.0001), temperate (P < 0.0001) and 12 Neotropical genera of scarabs, of which 11 were highly significant. The effect of short term (< 1 year) alcohol storage on volume was negligable. I found scarab volume on geologically old soils in the Amazon was one-third that of the geologically young Amazon (P < 0.0001). Species richness (P = 0.0002), Chao 1 (P = 0.0003), Fisher’s  (P = 0.008) and Margalef indices (P = 0.0003) were greater on young soils. Menhinick (P = 0.54), Simpson (P = 0.54) and rarefied species richness (P = 0.24), which correct for sample size differences, indicated no difference in diversity. Young Amazonian soils likely support a higher volume and abundance of scarabs than old soils, but diversity across Amazonia may be similar. I compared beta-diversity of scarab communities across Amazonia. Species rank-abundance curves did not differ among sites whereas volume-abundance distributions and volume-rank abundance curves indicated a larger range of scarab sizes in Brazil than Ecuador. At local levels (<62 km), communities were similar whereas at large distances (>1750 km), they were different. Differences between Brazil and Ecuador may be explained by varied soil age and productivity. I examined the effects of tropical forest fragmentation on scarabs, comparing my results with three other studies from the same site. Among 1, 10, and 100-ha fragments and continuous forest, I found two important trends; beetle biomass and species richness increased with fragment area per sampling effort. Comparing all four studies, diversity increased with fragment size, and by my rarefaction analyses, two studies demonstrated beetle volume increased with fragment size. Average beetle size increased with fragment area, suggesting a shift in dung beetle guild structure and functionality. Tropical-temperate comparsions demonstrated a lower scarab species richness and larger average body size in temperate forests compared with tropical forests. Volume and abundance per trap-day did not segregate along these divisions. The observed latitudinal gradient may be explained by spatial heterogeneity hypotheses and the body size gradient resembles Bergmann’s rule.

Subjects/Keywords: diversity; biomass; Brazil; dung beetle; Ecuador; forest fragment; Scarabaeidae; temperate forest; tropical forest; volume

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APA (6^th Edition):

Radtke, M. G. (2006). Tropical Pyramids: Dung Beetle Richness, Abundance, and Biomass. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-02072007-101535 ; https://digitalcommons.lsu.edu/gradschool_dissertations/364

Chicago Manual of Style (16^th Edition):

Radtke, Meghan Gabrielle. “Tropical Pyramids: Dung Beetle Richness, Abundance, and Biomass.” 2006. Doctoral Dissertation, Louisiana State University. Accessed March 04, 2021. etd-02072007-101535 ; https://digitalcommons.lsu.edu/gradschool_dissertations/364.

MLA Handbook (7^th Edition):

Radtke, Meghan Gabrielle. “Tropical Pyramids: Dung Beetle Richness, Abundance, and Biomass.” 2006. Web. 04 Mar 2021.

Vancouver:

Radtke MG. Tropical Pyramids: Dung Beetle Richness, Abundance, and Biomass. [Internet] [Doctoral dissertation]. Louisiana State University; 2006. [cited 2021 Mar 04]. Available from: etd-02072007-101535 ; https://digitalcommons.lsu.edu/gradschool_dissertations/364.

Council of Science Editors:

Radtke MG. Tropical Pyramids: Dung Beetle Richness, Abundance, and Biomass. [Doctoral Dissertation]. Louisiana State University; 2006. Available from: etd-02072007-101535 ; https://digitalcommons.lsu.edu/gradschool_dissertations/364

19. Bernal, Blanca. CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS.

Degree: PhD, Environment and Natural Resources, 2012, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1337616491

► Wetland ecosystems are significant carbon sinks. Their high productivity and presence of water gives them the ability to efficiently sequester carbon in the soil,… (more)

Subjects/Keywords: Environmental Science; wetland soil; wetland communities; radiodating techniques; tropical wetlands; temperate wetlands; hydrogeomorphic wetland type

…sequestration rates in tropical and temperate wetlands using radiometric dating. Abstracts… …Verde Biological Station by the Organization for Tropical Studies (OTS) in… …carbon sequestration in temperate freshwater wetland communities. Global Change Biology 18… …Nahlik, P Wolski, B Bernal, L Zhang, L Ramberg. 2010. Tropical wetlands: Seasonal… …Mitsch WJ, J Tejada, AM Nahlik, B Kohlman, B Bernal, CE Hernández. 2008. Tropical…

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APA (6^th Edition):

Bernal, B. (2012). CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1337616491

Chicago Manual of Style (16^th Edition):

Bernal, Blanca. “CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS.” 2012. Doctoral Dissertation, The Ohio State University. Accessed March 04, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337616491.

MLA Handbook (7^th Edition):

Bernal, Blanca. “CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS.” 2012. Web. 04 Mar 2021.

Vancouver:

Bernal B. CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS. [Internet] [Doctoral dissertation]. The Ohio State University; 2012. [cited 2021 Mar 04]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1337616491.

Council of Science Editors:

Bernal B. CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS. [Doctoral Dissertation]. The Ohio State University; 2012. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1337616491

20. Raji, B. Sustainable High-rises: Design Strategies for Energy-efficient and Comfortable Tall Office Buildings in Various Climates.

Degree: 2018, A+BE | Architecture and the Built Environment

URL: http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 10.7480/abe.2018.19 ; urn:isbn:978-94-6366-069-3 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5

► With the aim to limit the number of ineffective designs, this dissertation has investigated the impact of architectural design strategies on improving the energy performance… (more)

▼ With the aim to limit the number of ineffective designs, this dissertation has investigated the impact of architectural design strategies on improving the energy performance of and thermal comfort in high-rise office buildings in temperate, sub-tropical and tropical climates. As the starting-point of this research, a comparative study between twelve high-rise office buildings in three climate groups was conducted. For each climate group, three sustainable high-rises were selected and one typical high-rise design as a reference. The effectiveness of architectural design strategies was compared between the two categories of buildings (high-performance versus low-performance) concerning their potential impact on heating, cooling, lighting and ventilation loads. Certain architectural design strategies were found to be major determinants of energy performance in high-rise buildings. These can be classified under the categories of geometric factors, envelope strategies, natural ventilation strategies, and greenery systems. To quantify the extent to which these architectural design strategies affect energy use and thermal comfort of tall office buildings, simulation studies were carried out. To quantify the impact of geometric factors on the energy efficiency of high-rise office buildings, performance-based simulations were carried out for 12 plan shapes, 7 plan depths, 4 building orientations and discrete values for the window-to-wall ratio (WWR). The results of the total annual energy consumption (and different energy end-uses) were used to define the most and least efficient solutions. The optimal design solution is the one that minimises, on an annual basis, the sum of the energy use for heating, cooling, electric lighting and fans. The percentile difference - a deviation in the total energy use - between the most and least efficient design options showed the extent to which geometric factors can affect the energy use of the building. It was found that geometric factors could influence the energy use up to 32%. Furthermore, the recommended design options were classified according to their degree of energy performance for each of the climates. The second group of strategies is related to the envelope design. To quantify their degree of influence, an existing tall office building was selected as a typical high-rise design for each of the climates and the energy use prior and after refurbishment was compared through computer simulations with DesignBuilder. The 21-storey EWI building in Delft, the Netherlands, is selected as the representative for the temperate climate and the 65-storey KOMTAR tower in George Town, Malaysia, for the tropical climate. As part of a sensitivity analysis, energy performance simulations defined façade parameters with higher impact on building energy consumption. A large number of computer simulations were run to evaluate the energy-saving potential of various envelope measures, as well as their combinations. The results showed which set of envelope measures suits each climate… Advisors/Committee Members: van den Dobbelsteen, A.A.J.F., Tenpierik, M.J., Delft University of Technology.

Subjects/Keywords: High-rise office building; Energy efficiency; Architectural design strategies; Building energy simulation; Computational Fluid Dynamics (CFD); Natural ventilation strategies; Early-stage design strategies; Envelope design strategies; Greenery systems; Thermal comfort; Temperate climate; Tropical climate; Sustainability

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APA (6^th Edition):

Raji, B. (2018). Sustainable High-rises: Design Strategies for Energy-efficient and Comfortable Tall Office Buildings in Various Climates. (Doctoral Dissertation). A+BE | Architecture and the Built Environment. Retrieved from http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 10.7480/abe.2018.19 ; urn:isbn:978-94-6366-069-3 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5

Chicago Manual of Style (16^th Edition):

Raji, B. “Sustainable High-rises: Design Strategies for Energy-efficient and Comfortable Tall Office Buildings in Various Climates.” 2018. Doctoral Dissertation, A+BE | Architecture and the Built Environment. Accessed March 04, 2021. http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 10.7480/abe.2018.19 ; urn:isbn:978-94-6366-069-3 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5.

MLA Handbook (7^th Edition):

Raji, B. “Sustainable High-rises: Design Strategies for Energy-efficient and Comfortable Tall Office Buildings in Various Climates.” 2018. Web. 04 Mar 2021.

Vancouver:

Raji B. Sustainable High-rises: Design Strategies for Energy-efficient and Comfortable Tall Office Buildings in Various Climates. [Internet] [Doctoral dissertation]. A+BE | Architecture and the Built Environment; 2018. [cited 2021 Mar 04]. Available from: http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 10.7480/abe.2018.19 ; urn:isbn:978-94-6366-069-3 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5.

Council of Science Editors:

Raji B. Sustainable High-rises: Design Strategies for Energy-efficient and Comfortable Tall Office Buildings in Various Climates. [Doctoral Dissertation]. A+BE | Architecture and the Built Environment; 2018. Available from: http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; 10.7480/abe.2018.19 ; urn:isbn:978-94-6366-069-3 ; urn:NBN:nl:ui:24-uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5 ; http://resolver.tudelft.nl/uuid:06aaa3f6-cf9d-4c5e-8502-3950810dadc5

University of Waikato

21. Titjen, Jeremy Quentin. Tertiary limestones and sedimentary dykes on Chatham Islands, southwest Pacific Ocean, New Zealand .

Degree: 2007, University of Waikato

URL: http://hdl.handle.net/10289/2411

► The Chatham Islands are located in the SW Pacific Ocean, approximately 850 km to the east of the South Island of New Zealand. This small… (more)

▼ The Chatham Islands are located in the SW Pacific Ocean, approximately 850 km to the east of the South Island of New Zealand. This small group of islands is situated near the eastern margin of the Chatham Rise, an elongated section of submerged continental crust that represents part of the Late Paleozoic-Mesozoic Gondwana accretionary margin. The location and much of the geology of the Chatham Islands are attributed to intra-plate basaltic volcanism, initiated during the Late Cretaceous, in association with development of a failed rifting system to the south of the Chatham Rise. Despite the volcanic nature of much of the geology, the majority of the Cenozoic sedimentary stratigraphic record on the islands comprises non-tropical skeletal carbonate deposits whose deposition was often coeval with submarine volcanics and volcaniclastic deposits. This has resulted in complex stratigraphic relationships, with the volcanic geology exerting a strong influence on the geometry and distribution of the carbonate deposits. These limestones, despite some general field descriptions, have been little studied and are especially poorly understood from a petrographic and diagenetic perspective. The carbonate geology in detail comprises eleven discrete limestone units of Late Cretaceous through to Pleistocene age which were studied during two consecutive field expeditions over the summers of 2005 and 2006. These limestone occurrences are best exposed in scattered coastal outcrops where they form prominent rugged bluffs. While many of the younger (Oligocene to Pliocene) outcrops comprise of poorly exposed, thin and eroded limestone remnants (it;5 m thick), older (Late Paleocene to Early Oligocene) exposures can be up to 100 m in thickness. The character of these limestones is highly variable. In outcrop they display a broad range of textures and skeletal compositions, often exhibit cross-bedding, display differing degrees of porosity occlusion by cementation, and may include rare silicified horizons and evidence of hardground formation. Petrographically the limestones are skeletal grainstones and packstones with a typical compositional makeup of about 70% skeletal material, 10% siliciclasts, and 20% cement/matrix. Localised increases in siliciclastics occur where the carbonates are diluted by locally-derived volcaniclastics. The spectrum of skeletal assemblages identified within the Chatham Island limestones is diverse and appears in many cases to be comparable to the bryozoan dominant types common in mainland New Zealand and mid-latitude Australian cool-water carbonates in general. However, some key departures from the expected cool-water carbonate skeletal makeup have been identified in this study. The occurrence of stromatolitic algal mats in Late Cretaceous and Early Eocene carbonate deposits indicates not cool-temperate, but certainly warm-temperate paleoclimatic conditions. A change to cool-temperate conditions is recorded in the limestone flora/fauna from the mid-Late Miocene times following the development and…

Subjects/Keywords: Chathams Islands; Chatham Rise; carbonate; limestone; sedimentary dyke; limestone dyke; clastic dyke; injection; passive fill; intra-plate basaltic volcanism; submarine volcanics; skeletal assemblege; bioclastic; microbioclastic; micrite; syntaxial overgrowth; epitaxial rim; acicular fringing cement; early marine cementation; meteoric diagenesis; shallow burial; cool-water carbonates; temperate; non-tropical; hargrounds; bryomol; bryozoan dominanted; nannofor; New Zealand; southwest Pacific Ocean; Subtropical Front

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APA (6^th Edition):

Titjen, J. Q. (2007). Tertiary limestones and sedimentary dykes on Chatham Islands, southwest Pacific Ocean, New Zealand . (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/2411

Chicago Manual of Style (16^th Edition):

Titjen, Jeremy Quentin. “Tertiary limestones and sedimentary dykes on Chatham Islands, southwest Pacific Ocean, New Zealand .” 2007. Masters Thesis, University of Waikato. Accessed March 04, 2021. http://hdl.handle.net/10289/2411.

MLA Handbook (7^th Edition):

Titjen, Jeremy Quentin. “Tertiary limestones and sedimentary dykes on Chatham Islands, southwest Pacific Ocean, New Zealand .” 2007. Web. 04 Mar 2021.

Vancouver:

Titjen JQ. Tertiary limestones and sedimentary dykes on Chatham Islands, southwest Pacific Ocean, New Zealand . [Internet] [Masters thesis]. University of Waikato; 2007. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10289/2411.

Council of Science Editors:

Titjen JQ. Tertiary limestones and sedimentary dykes on Chatham Islands, southwest Pacific Ocean, New Zealand . [Masters Thesis]. University of Waikato; 2007. Available from: http://hdl.handle.net/10289/2411

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