Dissertations / Theses on the topic 'Population biology'
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Couch, Brett Charles. "Population biology of Sclerotium cepivorum." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0004/MQ45399.pdf.
Full textVella, Adriana. "Primate population biology and conservation." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245184.
Full textBohan, David Andrew. "Modelling Steinernema feltiae population biology." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261776.
Full textSeelig, Frederik. "Population biology of Ixodes ticks." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558849.
Full textSilva, Mónica Almeida e. "Population biology of bottlenose dolphins in the Azores archipelago." St Andrews : University of St Andrews thesis, 2007. https://research-repository.st-andrews.ac.uk/handle/10023/215.
Full textKennaway, Gabrielle M. A. "The population biology of freshwater phytoplankton." Thesis, Bangor University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236909.
Full textVàrkonyi, Gergely. "Population biology of periodic Xestia moths." Helsinki : University of Helsinki, 2003. http://ethesis.helsinki.fi/julkaisut/mat/ekolo/vk/varkonyi/.
Full textBottomley, Herbert Christian. "The population biology of multispecies helminth infection." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1445327/.
Full textLi, Yifei. "Nonlinear diffusion in mathematical biology." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/234381/1/Yifei_Li_Thesis.pdf.
Full textBanks, John E. "The effects of landscape heterogeneity on insect populations : a study of pattern and scale /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/5166.
Full textAdkins, Suzanne Craig. "Population Biology and Restoration of Intertidal Cockle Beds." Thesis, University of Canterbury. School of Biological Sciences, 2012. http://hdl.handle.net/10092/7794.
Full textRahoo, G. M. "Biology and population dynamics of sawflies on Ribes." Thesis, University of Newcastle Upon Tyne, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356791.
Full textCarter, Jonathan Philip. "Population biology of Trichoderma spp. used as inoculants." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329046.
Full textCreasey, Simon Spencer. "Population genetics and biology of deep-sea crustacea." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243161.
Full textGurney, Mark. "Population genetics and conservation biology of Primula elatior." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249052.
Full textJohansson, Mats E. "Population biology of the clonal plant Ranunculus lingua." Doctoral thesis, Umeå universitet, Ekologi och geovetenskap, 1992. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-111108.
Full textDiss. (sammanfattning) Umeå : Umeå universitet, 1992, härtill 4 uppsatser
digitalisering@umu
Xu, Yiyang. "Topics in population genetics and mathematical evolutionary biology." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682366.
Full textZahn, Laura. "Population dynamics of the gynodioecious Boutelouachondrosioides (Poaceae)." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/279959.
Full textLarsson, Jobs Karl. "Population Fragmentation and Genetic Variation in Grouse." Doctoral thesis, Uppsala University, Department of Ecology and Evolution, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6006.
Full textIn this thesis the genetic variation of two grouse species, the Chinese grouse (Bonasa sewersowi) and the Black grouse (Tetrao tetrix) was examined with neutral genetic markers: microsatellites. Habitat fragmentation and isolation leads to structuring among and loss of genetic variation within populations.
The Chinese grouse in a small population in Lianhuasan nature reserve was found to have undergone a population bottleneck and as a result of isolation and possible inbreeding showed genetic impoverishment hereof.
The Black grouse populations in Europe face various different conditions from widely distributed areas of suitable habitat in the northern and eastern parts of its range to highly naturally and anthropogenically fragmented habitat landscapes in the west.
Structure among populations was found in Great Britain where Wales, Scotland and England showed characteristics of three different genetic entities, indicating very little or no geneflow between these populations.
The Dutch population showed signs of loss of genetic variation as to be expected from a population that has historically decreased in population size from several thousands to tens of individuals in a matter of decades. However the possibility to spot signs of a bottleneck was impaired due to the short time-window in which this can be observed in a population with such a low effective population size (NE).
The sampled populations in Europe clustered into five different groups of genetic identities. The different clusters were: Great Britain-, the Netherlands-, Fenno-Scandian-, Alpine- and lowland German-Austrian populations. The level of genetic variation when compared over all these different populations decreased as a sign of isolation and small NE. However it was not feasible to separate the impact of these two factors.
Allen, J. B. "Geographical variation and population biology in wild Theobroma cacao." Thesis, University of Edinburgh, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384148.
Full textGrünig, Christoph. "Population biology of the tree-root endophyte Phialocephala fortinii /." [Zürich], 2003. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15313.
Full textWong, Jia Yih. "The population biology of 'Fusarium oxysporum' f. sp. 'asparagi'." Thesis, University of Kent, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429653.
Full textRieger, Mary Alice. "Horticultural management and population biology of several Banksia species." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phr554.pdf.
Full textCullen, Sean Anthony. "Population biology of eared grebes in naturally fragmented habitat." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq37507.pdf.
Full textSilva, Monica Almeida. "Population biology of bottlenose dolphins in the Azores archipelago." Thesis, University of St Andrews, 2007. http://hdl.handle.net/10023/215.
Full textWalker, Martin. "The population biology of Ascaris lumoricoides infections in humans." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.523751.
Full textSlooten, Elisabeth. "Population biology, social organization and behaviour of Hector's Dolphins." Thesis, University of Canterbury. Zoology, 1990. http://hdl.handle.net/10092/5800.
Full textGibson, C. C. "The population and community biology of Rhinanthus minor L." Thesis, University of East Anglia, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376354.
Full textLindner, Robert. "The population biology of the Common Guillemot, Uria aalge." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322917.
Full textHatchwell, Benedict L. "Population biology and coloniality of common guillemots Uria aalge." Thesis, University of Sheffield, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241796.
Full textSmith, Edward Mark. "Population biology of Staphylococcus aureus on dairy cattle farms." Thesis, University of Warwick, 2004. http://wrap.warwick.ac.uk/73120/.
Full textHancock, Andrew. "The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery /." Connect to this title, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068.
Full textLaine, Kari. "Long-term variations in plant quality and quantity in relation to cyclic microtine rodents at Kilpisjärvi, Finnish Lapland." Oulu, Finland : University of Oulu, 1988. http://catalog.hathitrust.org/api/volumes/oclc/18696609.html.
Full textGlass, Kevin Anthony. "The design and implementation of a multiple resolution modeling framework with applications to population modeling /." view abstract or download file of text, 2003. http://wwwlib.umi.com/cr/uoregon/fullcit?78049.
Full textTypescript. Includes vita and abstract. Includes bibliographical references (leaves 205-209). Also available for download via the World Wide Web; free to University of Oregon users.
Supriatna, Asep K. "Optimal harvesting theory for predator-prey metapopulations /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phs959.pdf.
Full textBruegl, Hilary A. "Remotely Administered Immunocontraception as an Effective and Humane Management Tool for Feral Horses (Equus caballus) in Overpopulated Rangelands." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/scripps_theses/329.
Full textGreenberg, Daniel. "Population dynamics of a declining amphibian." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121577.
Full textAlors que le déclin de la population amphibienne mondiale est de plus en plus préoccupant, il est primordial d'identifier les facteurs qui en sont la cause. Puisqu'une certaine fluctuation de population est normale, il est difficile de déterminer si une variation donnée est naturelle ou symptomatique d'un déclin réel. Une meilleure compréhension des fluctuations de la population amphibienne pourrait servir à distinguer entre les facteurs naturels de variation et une altération de dynamique associée à un déclin. Voilà l'idée directrice de cette étude d'une espèce à risque, le crapaud de Fowler (Anaxyrus [=Bufo] fowleri) de Long Point en Ontario, dont la population semble diminuer graduellement. À partir de l'information recueillie sur deux décennies de marquage-recapture, j'ai examiné les facteurs, internes et externes, de variation de leur population. Au cours de la période, leur habitat de reproduction a été considérablement détérioré par la présence d'une espèce envahissante de roseau commun, le Phragmites australis. J'explore le lien entre cette altération de dynamique et le déclin progressif des crapauds de Fowler. Avant 2002, leur population était régulée par des facteurs internes comme la croissance en fonction de la densité et la mortalité hivernale. Depuis, les roseaux communs ont éliminé la plupart de l'habitat en eau libre des crapauds de Fowler, dont la population ne répond plus qu'à des facteurs externes d'influence, en particulier le niveau de l'eau du lac Érié. Ensuite, je cherche à voir si la présence de l'espèce envahissante a influencé, non seulement la quantité d'habitat de reproduction du crapaud de Fowler, mais aussi la qualité de ce qui reste, par la production de composés secondaires. L'hypothèse explorée est que les composés secondaires nuisibles aux branchies, produits autant par l'espèce envahissante Phragmites que par l'espèce native Typha, réduisent les chances de survie, la croissance et le développement des crapauds de Fowler, qui respirent nécessairement par leurs branchies. En toute logique, l'espèce sympatrique grenouille léopard du Nord (Lithobates [=Rana] pipiens), qui respire par ses branchies de façon facultative, devrait être affectée de façon similaire. Cependant, ce n'est pas le cas ; j'ai remarqué que les têtards de crapauds de Fowler n'étaient pas affectés par la présence de composés secondaires. De plus, c'est l'espèce native Typha qui semblait nuire à la croissance des crapauds de Fowler, plutôt que l'espèce envahissante Phragmites. J'en conclus que l'expansion de cette dernière peut influencer plusieurs espèces par une réduction de l'habitat disponible, mais pas par la détérioration de la qualité de son habitat larvaire. En étudiant le déclin amphibien à partir de la dynamique de population, nous pouvons améliorer notre capacité à établir des liens entre le déclin de populations d'espèces et les mécanismes qui y contribuent.
Poetter, Karl. "Molecular population and evolutionary genetics of Rickettsiae /." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu148767034687517.
Full textMorin, Benjamin R. "The Effect of Static and Dynamic Spatially Structured Disturbances on a Locally Dispersing Population Model." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/MorinBR2006.pdf.
Full textSminkey, Thomas R. "Age, growth and population dynamics of the sandbar shark, Carcharhinus plumbeus, at different population levels." W&M ScholarWorks, 1994. https://scholarworks.wm.edu/etd/1539616858.
Full textMurphy, John F. "The ecology and population biology of two litter decomposing basidiomycetes." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-06302009-040233/.
Full textMavraganis, Katherine. "The reproductive ecology & population biology of Aquilegia canadensis (Ranunculaceae)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ31229.pdf.
Full textGravenor, Michael Brynley. "The population biology of Plasmodium falciparum within the human host." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260744.
Full textWang, Chun-Neng. "Systematics, developmental biology and population genetics of Titanotrichum oldhamii (Gesneriaceae)." Thesis, University of Edinburgh, 2003. http://hdl.handle.net/1842/13188.
Full textVan, Der Merwe Nicolaas Albertus. "Phylogeography and population biology of Chrysoporthe austroafricana and allied species." Thesis, University of Pretoria, 2012. http://hdl.handle.net/2263/79193.
Full textSumpton, Wayne Donald. "Population biology and management of snapper (Pagrus auratus) in Queensland /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16381.pdf.
Full textVan, der Merwe Nicolaas Albertus (Albie). "Phylogeography and population biology of Chrysoporthe austroafricana and allied species." Thesis, University of Pretoria, 2012. http://hdl.handle.net/2263/30863.
Full textThesis (PhD)--University of Pretoria, 2012.
Genetics
PhD
Unrestricted
Wilson, Maya. "Biology and conservation of the endangered Bahama Swallow (Tachycineta cyaneoviridis)." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/96264.
Full textDoctor of Philosophy
In order to prevent species extinctions, conservation strategies need to identify and resolve the problems that cause species to decline, as well as address issues characteristic of small populations. Species or populations with small ranges, such as those on islands, are particularly vulnerable to extinction, and lack of knowledge of these species often impedes conservation efforts. The Bahama Swallow is an endangered species that only breeds on three "pine islands" in the northern Bahamas. The swallow is a secondary cavity-nester, which means that it nests in a cavity, usually either a natural tree hole or a hole created by another bird species. In this study, I investigated where swallows are found on the islands, the genetics and body sizes of populations, nesting biology, and connections with other species, with the goal of providing information for the conservation and management of the species. On Abaco, I found that there are more swallows in the southern part of the island, especially near roads and the dead standing pine trees (pine snags) used for nesting. Future research should assess why there are fewer birds in other parts of the swallow's range. I tested whether the genetics and body sizes of populations on Abaco and Andros are different from each other. Populations were genetically similar, but may be separated enough to result in body size differences. I located swallow nests on Abaco, and found that swallows rely on cavities made by woodpeckers in pine snags and utility poles. By visiting some nests repeatedly, I found that swallows nesting in pine snags were more successful than those nesting in utility poles. I also assessed how swallows interact with the other bird species that create and use nesting cavities. Hairy Woodpeckers usually create cavities in pine snags, while West Indian Woodpeckers use utility poles outside of the pine forest. Swallows nesting in the pine forest compete with fewer bird species for cavities than swallows nesting in other habitats. These results show that managing the forest to retain pine snags and Hairy Woodpeckers is important for the conservation of the swallow.
Valentinsson, Daniel. "Fisheries biology of the whelk (Buccinum undatum) : population biology, estimation uncertainty and consequences of management alternatives /." Göteborg : Göteborg University, 2002. http://catalogue.bnf.fr/ark:/12148/cb39905470n.
Full textPaltiel, Charles J. "An analysis of the 1994-1996 northern Strait of Georgia oyster survey." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ51440.pdf.
Full text