Tesis sobre el tema "Spatial ecology"
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Mealor, Michael A. "Spatial heterogeneity in ecology". Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/53.
Texto completoSmith, M. Alexander. "Spatial ecology of Bufo fowleri". Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84844.
Texto completoHendry, Ruth Juliet. "Spatial modelling in plant ecology". Thesis, University of Warwick, 1995. http://wrap.warwick.ac.uk/1126/.
Texto completoMoreno, Michael Raghib. "Point processes in spatial ecology". Thesis, University of Glasgow, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443445.
Texto completoBunwong, Kornkanok. "Spatial modelling in evolutionary ecology". Thesis, University of Warwick, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439642.
Texto completoRoslin, Tomas. "Spatial ecology of dung beetles". Helsinki : University of Helsinki, 1999. http://ethesis.helsinki.fi/julkaisut/mat/ekolo/vk/roslin/.
Texto completoMay, Roelof Frans. "Spatial Ecology of Wolverines in Scandinavia". Doctoral thesis, Norwegian University of Science and Technology, Department of Biology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1730.
Texto completoMoussy, Caroline Maude Christine. "Spatial ecology of the serotine bat". Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/13848.
Texto completoWitt, Matthew John. "The spatial ecology of marine turtles". Thesis, University of Exeter, 2007. http://hdl.handle.net/10036/30023.
Texto completoJones, Esther Lane. "Spatial ecology of marine top predators". Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/12278.
Texto completoWhitney, Karen. "Spatial structure affects landscape ecology function". [Florida] : State University System of Florida, 1999. http://etd.fcla.edu/etd/uf/1999/amp7637/whitney.pdf.
Texto completoTitle from first page of PDF file. Document formatted into pages; contains viii, 35 p.; also contains graphics. Vita. Includes bibliographical references (p. 27-34).
Blumenthal, Janice Margaret. "Spatial ecology of Cayman Islands marine turtles". Thesis, University of Exeter, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493645.
Texto completoMoyer, Melissa Ann. "Spatial ecology of female Florida black bears". [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0007441.
Texto completoGilbert, Marius. "Spatial ecology of Dendroctonus micans (Kug.) (Coleoptera: Scolytidae)". Doctoral thesis, Universite Libre de Bruxelles, 2000. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211766.
Texto completoBennett, Andrew Thomas Deakin. "The ecology of spatial memory in European jays". Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302845.
Texto completoMarino, Jorgelina. "Spatial ecology of the Ethiopian wolf, Canis simensis". Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403578.
Texto completoGough, Lauren. "The spatial ecology of an endemic desert shrub". Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/13267/.
Texto completoIrvine, Michael Alastair. "Pattern formation and persistence in spatial plant ecology". Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/67166/.
Texto completoChapman, Daniel. "Spatial ecology of the tansy beetle (Chrysolina graminis)". Thesis, University of York, 2006. http://etheses.whiterose.ac.uk/14079/.
Texto completoVictorsson, Jonas. "Community Assembly and Spatial Ecology of Saproxylic Coleoptera". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88765.
Texto completoSchmidt, Jill Lisa. "Spatial ecology of bacteria in surficial marine sediments /". Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/11058.
Texto completoHanrahan, Alexander. "Spatial Ecology Of River Otters In Southern Illinois". OpenSIUC, 2018. https://opensiuc.lib.siu.edu/theses/2413.
Texto completoBONACCHI, ANDREA. "Spatial ecology of Apodemus flavicollis in Central Italy". Doctoral thesis, Università di Siena, 2019. http://hdl.handle.net/11365/1092627.
Texto completoPereira, de Felipe Fernanda. "Sexual segregation in spatial and feeding ecology of seabirds". Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/668678.
Texto completoLa segregación sexual (SS) es un fenómeno habitual en animales, como consecuencia de diferencias entre sexos en la distribución espacio-temporal, el comportamiento o la ecología trófica. En aves marinas, el estudio de la SS se ha centrado principalmente en el período reproductivo. En cambio, su alcance e implicaciones en relación a las condiciones ambientales, así como su ocurrencia fuera del período reproductivo, han sido menos estudiadas. Nuestro objetivo fue comprender las causas y consecuencias de la SS en la distribución, fenología migratoria, comportamiento y ecología trófica de tres especies emparentadas: la pardela cenicienta mediterránea, cenicienta atlántica y de Cabo Verde (Calonectris diomedea, C. borealis y C. edwardsii, respectivamente). Para ello evaluamos las diferencias sexuales en el periodo reproductivo (en la pardela cenicienta mediterránea) y de invernada, y discutimos si dichas diferencias se extienden a lo largo del ciclo anual. Para el periodo reproductivo, nuestros resultados indicaron que las hembras de pardela cenicienta mediterránea son menos competitivas que los machos, viéndose obligadas a incrementar el esfuerzo de búsqueda de alimento, especialmente ante condiciones ambientales desfavorables. Además, los machos fueron más proclives a interaccionar con barcos pesqueros, haciendo mayor uso de descartes, pero exponiéndose a un mayor riesgo de captura accidental, lo que podría comprometer el tamaño efectivo de la población y su viabilidad en el Mediterráneo noroccidental. Fuera del periodo reproductivo, ambos sexos compartieron las zonas de invernada en las tres especies, indicando que la exclusión competitiva no causa, al menos a escala espacial, SS a lo largo del año. Ambos sexos se alimentaron en diferentes niveles tróficos, sugiriendo que la segregación trófica persiste a lo largo del año. Encontramos sutiles diferencias en el calendario migratorio, siendo los machos los primeros en retornar a las colonias, y un mayor porcentaje de machos que de hembras de la pardela cenicienta atlántica no migró, probablemente como estrategia ventajosa de cara a las etapas iniciales del periodo reproductivo. En general, encontramos evidencias de SS en los movimientos de búsqueda de alimento, fenología migratoria y ecología trófica, tanto durante el período reproductivo como en el período de invernada en las tres especies de pardela.
Ieraci, Luciano A. "Spatial intermittency, biodiversity, and multifractals". Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33411.
Texto completoThe simplest treatment combining real and species space scaling is obtained by considering an anisotropic multifractal cascade in a (5-D) species-space-time space. With the help of a unique data base involving nearly three hundred different species densities, each over a spatial range of approximately 40, 0.5m x 0.5m samples from six underwater sites in the Saint Lawrence Estuary, this simple "superscaling" model is tested. It is shown that the scaling of all species densities is compatible with a "bilinear" multifractal model, where an "elliptical dimension" parameter characterises the anisotropy of species-real space. This information is then used to numerically simulate the spatial variability of joint species densities, and it is discussed how this framework can be used to define scale invariant measures of biodiversity.
White, Andrew. "Temporal and spatial dynamics of ecological systems". Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338459.
Texto completoPurves, Drew William. "Local spatial structure and plant population dynamics". Thesis, University of York, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251813.
Texto completoThomas, Christopher Francis George. "The spatial dynamics of spiders in farmland". Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358257.
Texto completoAudorff, Volker. "Vegetation ecology of springs ecological, spatial and temporal patterns". Bayreuth Bayreuth Center of Ecology and Environmental Research, 2009. http://d-nb.info/99933087X/34.
Texto completoKeeling, Matthew James. "The ecology and evolution of spatial host-parasite systems". Thesis, University of Warwick, 1995. http://wrap.warwick.ac.uk/30/.
Texto completoOsborne, Meave Catherine. "The spatial ecology of phytopathogenic zoospores in the rhizosphere". Thesis, University of Aberdeen, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369560.
Texto completoBal, Harit Kaur. "Spatial Ecology of Entomopathogenic Nematodes with Contrasting Foraging Strategies". The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1357164528.
Texto completoWen, Yuming. "Spatial diffusion model for simulation of urban land cover change /". View online ; access limited to URI, 2004. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3147805.
Texto completoHoss, Shannon Kelleigh. "Spatial ecology of the Eastern diamond-backed rattlesnake (Crotalus adamanteus)". Auburn, Ala., 2007. http://repo.lib.auburn.edu/07M%20Theses/HOSS_SHANNON_17.pdf.
Texto completoJensen, Olaf P. "Spatial ecology of blue crab (Callinectes sapidus) in Chesapeake Bay". College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1989.
Texto completoThesis research directed by: Marine, Estuarine, Environmental Sciences Graduate Program. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
O'Neill, K. P. "Dispersal and spatial ecology in woodmice living in pastoral farmland". Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368476.
Texto completoTuck, Joanne Michelle. "Effects of spatial heterogeneity on the ecology of terrestrial isopods". Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368185.
Texto completoSimpson, Samantha. "Spatial ecology and fisheries interactions of Rajidae in the UK". Thesis, University of Southampton, 2018. https://eprints.soton.ac.uk/427037/.
Texto completoNicholson, Kerry Lynn. "Spatial Movements and Ecology of Mountain Lions in Southern Arizona". Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/194192.
Texto completoWhitman, Elizabeth Rose. "Factors Affecting Green Turtle Foraging Ecology Across Multiple Spatial Scales". FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3870.
Texto completoFeldman, Richard. "Toward a theory of abundance at large spatial scales". Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104707.
Texto completoL'écologie est l'étude de la diversité, des distributions et des abondances des organismes vivants. Les avancées technologiques récentes couplées à une expansion des objets de recherche ont permis à une étude approfondie de la variation de ces deux premières propriétés sur de très grandes échelles spatiales. Les variations en abondance sont, quant à elles, peu documentées aux grandes échelles spatiales et les développements théoriques correspondant restent limités. Il existe pourtant un pattern prévalent : une espèce donnée est généralement abondante dans une partie extrêmement réduite de sa zone géographique et rare partout ailleurs. Cette observation est aujourd'hui communément expliquée par une variation environnementale sous-jacente. Cette thèse s'appuie sur des approches à la fois empiriques et expérimentales, statistiques et théoriques pour tester le type de variation environnementale ainsi que les interactions entre environnement et compétition interspécifique pouvant générer les variations spatiales en abondances observées. Il est montré que présence-absence et abondance sont affectées par des facteurs environnementaux distincts. Il apparaît en outre que l'effet de la compétition interspécifique dépend des différences de niches entre espèces et module l'impact de l'environnement sur l'abondance en modifiant des coûts et bénéfices relatifs des différentes stratégies d'acquisition des ressources. Finalement, la possibilité de prédire les réponses aux changements climatiques grâce aux données d'abondance et à des modèles statistiques minimisant le bruit inhérent à ce type de données est démontrée. Pour autant, une véritable théorie des distributions d'abondance reste à développer. Le nombre, et a fortiori l'identité, des gradients environnements affectant les abondances à grande échelle spatiale sont encore mal connus. Un effort de recherche considérable est ainsi nécessaire pour améliorer la compréhension du lien entre phénomènes locaux, dont l'interaction entre environnement, traits, comportement et compétition, et patterns à grandes échelles. Par ailleurs, l'unification entre approches basées sur la dispersion, négligeant les différences de niches, avec la théorie actuelle doit encore être accomplie pour qu'une véritable théorie générale des dynamiques macro-évolutive et patterns macro-écologiques puisse voir le jour.
Turnbull, Lindsay Ann. "The role of spatial processes in a limestone grassland". Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286743.
Texto completoRamakrishnan, Lakshmikantan. "Environmental variability and ecological dynamics in spatially structured populations /". Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004361.
Texto completoDick, David Allen. "Spatial heterogeneity of soil nutrients, nitrogen dynamics and vegetation in a 3rd order stream floodplain in southwestern West Virginia". Huntington, WV : [Marshall University Libraries], 2003. http://www.marshall.edu/etd/descript.asp?ref=339.
Texto completoTitle from document title page. Document formatted into pages; contains ix, 140 p. including illustrations. Includes vita. Includes bibliographical references (p. 104-108).
Oshima, Júlia Emi de Faria. "Movement ecology and spatial distribution of Tayassu pecari in heterogeneous tropical landscapes /". Rio Claro, 2019. http://hdl.handle.net/11449/183519.
Texto completoResumo: Modificações da cobertura do solo, perturbações antropogênicas e mudanças climáticas na região Neotropical têm sido associadas à crise da biodiversidade. Nesta tese, o objetivo principal foi investigar os efeitos que a estrutura da paisagem (incluindo a perturbação antropogênica) e a qualidade do habitat têm na distribuição espacial, nos padrões de movimento e na seleção de habitat da queixada - Tayassu pecari. Esta espécie é o único ungulado florestal Neotropical que forma grandes bandos e é uma espécie-chave nos ecossistemas florestais, pois sua extinção local pode causar perdas adicionais de biodiversidade por meio de efeitos em cascata. Ainda assim, pouco se sabe sobre uso do espaço e movimentos de queixadas em escala fina. Para tanto, estudamos a distribuição e movimentação da espécie em diferentes escalas e biomas do Brasil, investigando quais variáveis de paisagem influenciaram a mesma em diferentes escalas e ordens de seleção. Nossos resultados mostram fortes efeitos negativos da modificação da paisagem e fragmentação do habitat na distribuição de queixadas, restando apenas 47% do território brasileiro com áreas adequadas para a espécie. Verificamos que menos da metade de todas as áreas protegidas nos biomas Cerrado e Mata Atlântica têm um habitat adequado para a queixada. Para a análise do movimento, rastreamos 30 indivíduos com colares de GPS de julho de 2013 a outubro de 2016 no Pantanal e no Cerrado do estado do Mato Grosso do Sul. Nossos principais resultados mos... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Land cover modifications, anthropogenic disturbances and climate change in the Neotropical region have been linked to the biodiversity crisis. This thesis proposal was to investigate the effects that landscape structure (including anthropogenic disturbance) and habitat quality have in the spatial distribution, in the movement patterns and in the habitat selection of the white-lipped peccary - Tayassu pecari (WLP). This species is the only Neotropical forest ungulate that forms large herds, and it is a keystone species in forest ecosystems because its local extinction may cause additional biodiversity losses through cascading effects. Still, little is known about WLPs space use and fine-scale movement. For that aim we studied the species distribution and movements in different scales and biomes of Brazil, investigating which landscape variables would influence the species in different scales and orders of selection. Our findings show strong negative effects of landscape modification and habitat fragmentation on white-lipped peccary distribution, with only 47% of the Brazilian territory with suitable areas for the species. We also found that less than half of all protected areas in the Cerrado and the Atlantic Forest biomes have suitable habitat for WLP. For the movement analysis we tracked 30 individuals with GPS collars from July 2013 to October of 2016 in the Pantanal and in the Cerrado of Mato Grosso do Sul state. Our main results showed a positive selection of WLP for fore... (Complete abstract click electronic access below)
Doutor
Gouhier, Tarik Claude. "Causes and consequences of population fluctuations in spatial ecological systems". Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92227.
Texto completoFrost, Matthew. "Large-Scale spatial patterns of sandy beach macrofauna community composition". Thesis, University of Plymouth, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289587.
Texto completoMahdi, Abdul-Khaliq Saleh. "The plant ecology of limestone grassland community : spatial organization and coexistance". Thesis, University of Sheffield, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358966.
Texto completoMoore, Cordelia Holly. "Defining and predicting species-environment relationships : understanding the spatial ecology of demersal fish communities". University of Western Australia. Faculty of Natural and Agricultural Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0002.
Texto completoRew, Lisa J. "Spatial and comparative aspects of arable field margin flora". Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333656.
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