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Dissertations / Theses on the topic 'Biogeographical patterns'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Scott, Robyn. "Biogeographical patterns of southern African marine invertebrates." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/6187.

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Includes abstract.<br>Includes bibliographical references (p. 156-171).<br>Biogeography is defined as the study of life, in a spatial and temporal context, with respect to the analysis and explanation of patterns for a given area. The tendency for species richness and diversity to increases towards the equator, where both peak, is a much debated and tested pattern. Underlying mechanisms thought to cause this pattern are: gradients in temperature, stress, productivity, competition, predation, stability, effective evolutionary time, niche breadth, range size and area of occupancy. Evidence exist

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2

Gathorne-Hardy, Frederick Jasper. "The termites of South-east Asia : a study of biogeographical patterns." Thesis, King's College London (University of London), 2002. https://kclpure.kcl.ac.uk/portal/en/theses/the-termites-of-southeast-asia--a-study-of-biogeographical-patterns(f6252aa2-4bc6-4a9f-b236-f07a15c0d1d6).html.

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3

Judd, Simon L. "Terrestrial isopods (Crustacea: Oniscidea) and biogeographical patterns from South-Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2004. https://ro.ecu.edu.au/theses/1613.

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This thesis examines terrestrial isopod (Crustacea: Oniscidea) diversity and biogeography from south-western Australia, a region already recognised for the exceptional high biodiversity and concentrations of endemic species. A taxonomic investigation of isopods in the Western Australian Museum and material collected systematically as part of this study revealed seventy taxa, sixty of which were considered native species. The thesis provides a comprehensive review of regional taxonomic history and includes a key, complete with a set of forty characters states and taxa, illustrated by a number o

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4

Cecchi, Giuliano. "Biogeographical patterns of African trypanosomoses for improved planning and implementation of field interventions." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209787.

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Spatially-explicit information is essential for planning and implementing interventions against vector-borne diseases. This is also true for African trypanosomoses, a group of diseases of both humans and animals caused by protozoa of the Genus Trypanosoma, and transmitted by tsetse flies (Genus Glossina).<p>In this thesis the knowledge gaps and the requirements for an evidence-based decision making in the field of tsetse and trypanosomoses are identified, with a focus on georeferenced data and Geographic Information Systems (GIS). Datasets, tools and analyses are presented that aim to fill som

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Ottens, Kristina Jane. "Ecological and biogeographical patterns associated with genetic differentiation in a diverse genus of Neotropical fruit flies." Thesis, University of Iowa, 2015. https://ir.uiowa.edu/etd/1716.

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Understanding the processes that generate biodiversity is a major goal of evolutionary biology. The ultimate cause of biodiversity is the evolution of barriers to gene flow between populations of organisms, but the proximate mechanisms are often more complex. I am interested in disentangling the roles of geographic isolation and ecological selection in the diversification of a species-rich genus of tropical tephritid fruit flies. Blepharoneura are highly specialized and host specific flies; most species specialize on a single plant host and flower sex although multiple species may exploit the

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Damaso, Natalie. "Biogeographical Patterns of Soil Microbial Communities: Ecological, Structural, and Functional Diversity and their Application to Soil Provenance." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/3006.

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The current ecological hypothesis states that the soil type (e.g., chemical and physical properties) determines which microbes occupy a particular soil and provides the foundation for soil provenance studies. As human profiles are used to determine a match between evidence from a crime scene and a suspect, a soil microbial profile can be used to determine a match between soil found on the suspect’s shoes or clothing to the soil at a crime scene. However, for a robust tool to be applied in forensic application, an understanding of the uncertainty associated with any comparisons and the paramete

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7

Widmayer, Heather. "Biogeographical patterns associated with genome-wide genetic differentiation in a widespread species of South American Blepharoneura fruit flies (Tephritidae)." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/6337.

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Studying how new insect species originate can help us better understand the evolutionary processes that lead to the rich insect biodiversity found in the tropics. New insect species arise via the evolution of reproductive isolation, a result of the accumulation of reproductive isolating barriers. Reproductive isolating barriers can arise in the context of geographical isolation and/or can be influenced by differences in ecology. Complex evolutionary mechanisms may underlie the origins of the more than 40 species of neotropical fruit flies in the genus Blepharoneura (Diptera: Tephritidae). The

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8

Hunter, Brena Elese. "Population genetic structure and patterns of dispersal in the Giant Long-Armed Prawn, Macrobrachium lar (Fabricius, 1798) (Decapoda : Palaemonidae)." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/46131/1/Brena_Hunter_Thesis.pdf.

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The Giant Long-Armed Prawn, Macrobrachium lar is a freshwater species native to the Indo-Pacific. M. lar has a long-lived, passive, pelagic marine larval stage where larvae need to colonise freshwater within three months to complete their development. Dispersal is likely to be influenced by the extensive distances larvae must transit between small oceanic islands to find suitable freshwater habitat, and by prevailing east to west wind and ocean currents in the southern Pacific Ocean. Thus, both intrinsic and extrinsic factors are likely to influence wild population structure in this species.

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9

García, Márquez Jaime Ricardo [Verfasser]. "Biogeographical Analyses and Applications: The Study of Plant Distribution Patterns in West Africa / Jaime Ricardo García Márquez. Mathematisch-Naturwissenschaftliche Fakultät." Bonn : Universitäts- und Landesbibliothek Bonn, 2011. http://d-nb.info/1019528346/34.

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10

Hernández, Rojas Adriana Carolina [Verfasser], and Georg [Akademischer Betreuer] Miehe. "Biogeographical patterns of species richness, range size and phylogenetic diversity of ferns along elevational-latitudinal gradients in the tropics and its transition zone / Adriana Carolina Hernández Rojas ; Betreuer: Georg Miehe." Marburg : Philipps-Universität Marburg, 2020. http://d-nb.info/1223130835/34.

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11

Wood, Derek. "Neanderthal biogeographic patterns over the Eemian-Weichsellian cycle." Thesis, University of York, 2008. http://etheses.whiterose.ac.uk/2562/.

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Recent research on Neanderthal extinction has considered the role of climatic and environmental changes during Marine Isotope Stage (MIS) 3 (ca. 59-25 ka BP). This thesis explores Late Pleistocene Neanderthal population trends and responses to climate change across four European study provinces and considers the role that climate and environmental change played in their extinction. It is argued that regional population histories are complex; phases of expansion and contraction occurred across a range of climate states. It is concluded that traditional nomenclature i.e. climate stages such as s

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12

Barends, Jody Michael. "Predicting reptile species distributions and biogeographic patterns within Kruger National Park." University of the Western Cape, 2018. http://hdl.handle.net/11394/6745.

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Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv and Cons Biol)<br>Knowledge of global reptile ecology is limited and there remains much to understand in terms of detailed reptile species information, including that of their distributions. In South Africa, despite being one of SANParks best-studied reserves, surprisingly little is known about the distributions and spatial ecology of reptiles within Kruger National Park (KNP). Management within KNP follows a strategic adaptive management strategy which monitors the statuses of animals using species or group specific indi

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13

Krakau, Manuela [Verfasser]. "Biogeographic patterns of the marine bivalve Cerastoderma edule along the European Atlantic coasts / Manuela Krakau." Kiel : Universitätsbibliothek Kiel, 2009. http://d-nb.info/1019810505/34.

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Richardson, Andrew James. "Patterns of mussel bed infaunal community structure and function at local, regional and biogeographic scales." Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:13238.

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15

Svensson, Linda Maria Elenor. "Biogeographic patterns of avian malaria parasites in the Lesser Antilles prevalence, diversity, and community composition /." Diss., St. Louis, Mo. : University of Missouri--St. Louis, 2008. http://etd.umsl.edu/r2881.

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16

Scholtz, Olivia Ingrid. "Inter-continental patterns in the fine-scale spatial ecology of rain forest termites." Thesis, University of Plymouth, 2010. http://hdl.handle.net/10026.1/293.

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In this thesis I describe fine-scale spatial patterns in rain forest termites, from the colony to the assemblage level, sampled from one hectare plots in Central African and South East Asian lowland rain forest. By so doing the ecological interactions that structure this functionally important and abundant soil community were identified. The African termite assemblage, dominated by soil-feeding termites, saturated the upper soil profile (collected from 90% of soil pits). In contrast termites were collected from <50% of soil pits in Asia, with this difference reflecting the lower species den

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17

Brown, Curtis. "Spatial and Temporal Patterns of Predation on the American Lobster, Homarus americanus, across New England's Biogeographic Transition Zone." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/BrownC2007.pdf.

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18

Haponski, Amanda E. "Evolutionary, Biogeographic, and Population Genetic Patterns of Walleye and other Sander: Relationships across Continents, Corridors, and Spawning Sites." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1372672476.

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19

Richardson, Kirsten Alexandra. "Application of surface-ocean remote-sensing to the characterisation of biogeographic patterns of benthic fauna in a temperate shelf sea." Thesis, University of Plymouth, 2007. http://hdl.handle.net/10026.1/2507.

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Ecosystem scale, adaptive management of the marine environment, emphasised by the Convention on Biological Diversity, requires a clear understanding of the spatial and temporal dynamics of the system in question. Classical species-based biogeography alone is not sufficient to describe those dynamics at the appropriate scale for whole ecosystem management. A novel, multidisciplinary, complex systems approach has been developed for characterising the biogeographic distribution of benthic fauna in a temperate shelf sea system through application of remote sensing to the principles of benthic-pela

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20

Keller, Michael J. "Variation in call structure of the gray treefrogs, Hyla chrysoscelis and Hyla versicolor : direct effects of polyploidy and biogeographic patterns /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9988675.

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21

Kavazos, Christopher. "Small-scale biogeographic patterns of benthic bacterial and ciliate communities in the saline ponds of Lake MacLeod, North-Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2016. https://ro.ecu.edu.au/theses/1811.

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This biogeographical thesis tests for the presence of taxa-area and distance-decay relationships, which are common among macrobionts, in prokaryotic (bacterial) and micro-eukaryotic (ciliate) communities. Microbial biogeographical patterns may be distinct because of the high abundances, diversity and dispersal capabilities of microbes, in comparison to macrobionts. The Northern Ponds of Lake MacLeod, north-western Australia, provide an ideal location to address this topic, because the ponds are effectively hydrogeomorphologically identical, other than in surface area, and biotic histories can

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Sepulveda, Villet Osvaldo Jhonatan. "Population Genetic Structure and Biogeographic Patterns in the Yellow Perch Perca flavescens: An Analysis of Mitochondrial and Nuclear DNA Markers." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1321458463.

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23

Alessandrini, Anita. "Movements of short-finned pilot whales (Globicephala macrorhynchus) in the Macaronesian biogeographical region: a photo-identification analysis." Master's thesis, 2016. http://hdl.handle.net/10400.1/9850.

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Dissertação de mestrado, Biologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2016<br>The short-finned pilot whale, Globicephala macrorhynchus Gray (1846), is a marine mammal species from the family Delphinidae. It is a top predator species, with a circumglobal distribution from warm-temperate to tropical regions, at varying distances from shore, including the Macaronesia region (NE Atlantic). Population connectivity can profoundly influence the distribution, persistence and ecological impact of local marine mammal species. Understanding population connectivity a

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24

Tshikae, Balatlhane Power. "Local and regional factors influencing dung beetle assemblage structure across an environmental gradient in Botswana." Thesis, 2011. http://hdl.handle.net/2263/28856.

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The taxonomic composition, structure, and diversity of current local species assemblages results from an interacting complex of historical, regional ecological and local ecological factors. Structural differences between such current species assemblages are primarily determined by changing ecological conditions across spatial gradients. These conditions may change abruptly or they may represent a gradual divergence. Across the Botswana Kalahari basin there is a gradual northeast-southwest aridity and dung type gradient, which was demonstrated to strongly influence dung beetle assemblage struct

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25

Chen, Li-Ling, and 陳俐陵. "Microbial Biogeographic Patterns of Terrestrial Mud Volcanoes across Eurasian Continent." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/8jt3r4.

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碩士<br>國立臺灣大學<br>海洋研究所<br>105<br>Terrestrial mud volcanoes represent the surface expression of conduits tapping fluid and gas reservoirs in deep subsurface environments. Whether dispersal of microbial communities could proceed in such habitat depends significantly on the connectivity of the subsurface fluid conduits along long distance. While most terrestrial mud volcanoes are hydrologically isolated from each other and strictly obligatory anaerobes inherited in mud volcanoes would be limited upon the exposure to the atmosphere, microbial dispersal would be restricted. This study hypothesized t

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26

Ranatunga, R. R. M. K. P. "Demographic patterns in coral reef fishes: biogeographic trends and fishing effects." Thesis, 2007. https://researchonline.jcu.edu.au/29824/1/29824_Raratunga_2007_thesis.pdf.

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The present study is a multi-scale study which investigates the demographic plasticity within and between geographically distinct reef fishes of the families Lutjanidae (Snappers), Serranidae (groupers) and Labridae (hogfish). This also investigates how fishing alters fish demography and demographic shifts associated with introduction to new habitats. These were determined by analyzing age-based demographic parameters, biological and ecological information as a basis for management and conservation. Demographic characteristics such as size, age, longevity, mortality rates and broad-scale spati

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Roberts, May B. "Biogeographic Patterns of Reef Fish Communities in the Saudi Arabian Red Sea." Thesis, 2014. http://hdl.handle.net/10754/336481.

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As a region renowned for high biodiversity, endemism and extreme temperature and salinity levels, the Red Sea is of high ecological interest. Despite this, there is relatively little literature on basic broad scale characteristics of the biodiversity or overall reef fish communities and how they change across latitude. We conducted visual transects recording the abundance of over 200 species of fish from 45 reefs spanning over 1000 km of Saudi Arabian coastline and used hierarchical cluster analysis to find that for combined depths from 0m-10m across this geographical range, the reef fish comm

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28

Teske, Peter R., Christopher McQuaid, P. William Froneman, and Nigel P. Barker. "Impacts of marine biogeographic boundaries on phylogeographic patterns of three South African estuarine crustaceans." 2006. http://hdl.handle.net/10962/d1011622.

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The South African coastline comprises 3 main biogeographic provinces: (1) the cool-temperate west coast, (2) the warm-temperate south coast, and (3) the subtropical east coast. The boundaries between these regions are defined by changes in species compositions and hydrological conditions. It is possible that these affect phylogeographic patterns of coastal organisms differently, depending on the species’ ecologies and modes of dispersal. In the present study, genealogies of 3 estuarine crustaceans, each characterized by a different mode of passive dispersal and present in more than one biogeog

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Teske, Peter R., Christopher D. McQuaid, Pierre William Froneman, and Nigel P. Barker. "Impacts of marine biogeographic boundaries on phylogeographic patterns of three South African estuarine crustaceans." 2006. http://hdl.handle.net/10962/d1006004.

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The South African coastline comprises 3 main biogeographic provinces: (1) the cool-temperate west coast, (2) the warm-temperate south coast, and (3) the subtropical east coast. The boundaries between these regions are defined by changes in species compositions and hydrological conditions. It is possible that these affect phylogeographic patterns of coastal organisms differently, depending on the species’ ecologies and modes of dispersal. In the present study, genealogies of 3 estuarine crustaceans, each characterized by a different mode of passive dispersal and present in more than one biogeog

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Large, Scott Isaac. "Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10231.

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Predators can have large effects on prey populations and on the structure and function of communities. In addition to direct consumption of prey, predators often cause prey to alter their foraging behavior, habitat selection, and morphology. These non-lethal effects of predators can propagate to multiple trophic levels and often exert equal or larger effects upon communities than those of direct consumption. For non-lethal predatory effects to occur, prey must detect and respond to predation risk. While the importance of information transfer in this process has been realized, few studies explo

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31

Martinho, Rui Seabra Alves. "Analysis of the mechanistic link between micro-climate and macro-biogeographic patterns of intertidal rocky shore organisms." Doctoral thesis, 2015. https://repositorio-aberto.up.pt/handle/10216/83064.

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32

Mudrova, Sofya. "Molecular Diversity, Phylogeny, and Biogeographic Patterns of Crustacean Copepods Associated with Scleractinian Corals of the Indo-Pacific." Diss., 2018. http://hdl.handle.net/10754/630219.

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Biodiversity of coral reefs is higher than in any other marine ecosystem, and significant research has focused on studying coral taxonomy, physiology, ecology, and coral-associated fauna. Yet little is known about symbiotic copepods, abundant and numerous microscopic crustaceans inhabiting almost every living coral colony. In this thesis, I investigate the genetic diversity of different groups of copepods associated with reef-building corals in distinct parts of the Indo-Pacific; determine species boundaries; and reveal patterns of biogeography, endemism, and host-specificity in these symbioti

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Martinho, Rui Seabra Alves. "Analysis of the mechanistic link between micro-climate and macro-biogeographic patterns of intertidal rocky shore organisms." Tese, 2015. https://repositorio-aberto.up.pt/handle/10216/83064.

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34

Robitzch, Sierra Vanessa S. N. "The Assessment of Current Biogeographic Patterns of Coral Reef Fishes in the Red Sea by Incorporating Their Evolutionary and Ecological Background." Diss., 2017. http://hdl.handle.net/10754/623316.

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The exceptional environment of the Red Sea has lead to high rates of endemism and biodiversity. Located at the periphery of the world’s coral reefs distribution, its relatively young reefs offer an ideal opportunity to study biogeography and underlying evolutionary and ecological triggers. Here, I provide baseline information on putative seasonal recruitment patterns of reef fishes along a cross shelf gradient at an inshore, mid-shelf, and shelf-edge reef in the central Saudi Arabian Red Sea. I propose a basic comparative model to resolve biogeographic patterns in endemic and cosmopolitan reef

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