Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 141 for “"Carnivores"”.
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Responses of Madagascar's Endemic Carnivores to Fragmentation, Hunting, and Exotic Carnivores Across the Masoala-Makira Landscape
The carnivores of Madagascar are likely the least studied of the world's carnivores, thus little is known about threats to their persistence. I provide the first long-term assessment of Madagascar's rainforest carnivore community, including: 1) how multiple forms of habitat degradation (i.e., …
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Towards multimodal monitoring of large African carnivores
Technology has helped revolutionise the collection of ecological data to monitor African lions (Panthera leo) and leopards (Panthera pardus). The most used technologies are camera traps and GPS or VHF collars. Passive acoustic monitoring could act as a complementary monitoring tool because both …
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Lead exposure in large carnivores in the greater Yellowstone ecosystem
… ungulate gut piles. Some large mammalian carnivores, such as grizzly bears (Ursus arctos), are also known to target these gut piles as a food source while others, such as cougars (Puma concolor), avoid areas with high levels of human hunting pressure. I investigated whether large …
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Lead exposure in large carnivores in the greater Yellowstone ecosystem
… ungulate gut piles. Some large mammalian carnivores, such as grizzly bears (Ursus arctos), are also known to target these gut piles as a food source while others, such as cougars (Puma concolor), avoid areas with high levels of human hunting pressure. I investigated whether large …
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Large carnivores and humans: understanding livestock predation patterns to alleviate conservation conflicts
El crecimiento de la población humana ha aumentado la demanda de recursos, modificando el paisaje y contribuyendo a la pérdida de biodiversidad. Los esfuerzos de conservación pueden verse dificultados por los impactos negativos que las especies pueden ejercer en las poblaciones humanas, conduciendo …
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Movement analysis for monitoring predation by large carnivores : lions in Kruger National Park
… used to estimate the prey consumption by large carnivores include direct continuous observation, stomach content analysis, carcass observations and scat analysis. Continual observations are widely considered the best approach to estimate large carnivore diets, with lions (Panthera leo) being no …
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Technology in ecology: determining the location, behaviour, and energy expenditure of free-ranging carnivores
… important for monitoring cryptic animals such as carnivores, when direct observations are impractical or might influence behaviour. In combination with environment data, these loggers can enhance our understanding of how animals survive in changing, anthropogenic landscapes.<br/><br/>In this …
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The effect of individual variability and larger carnivores on the functional response of cheetahs
… of cub rearing and coexisting with larger carnivores differentially shape the hunting behavior of cheetahs, and suggest that intensity of mesopredator suppression may depend on individual variability. This is the first time the functional response for a large mesopredator, has been …
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Comparing fine-scale temporal environmental DNA (eDNA) sampling to camera trapping for detecting mammalian carnivores
… favourably to camera trap results. However, carnivores are one of the more problematic groups regarding eDNA detections. In this study, the validity of semi-aquatic and terrestrial mammalian detection via eDNA was investigated within the north-eastern region of Spain by comparing eDNA …
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Mammalian carnivores as bioindicators to evaluate the exposure and bioaccumulation of organic contaminants in terrestrial ecosystems
To address my first objective, I opportunistically collected road-killed bobcats (n=44) throughout Illinois during 2013-2014, and analyzed their liver tissue for the presence of PCBs, PBDEs, and various other alternative halogenated flame retardants. Concentrations of ∑PCBs ranged from 76.4 ng/g lw …
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Ecology and conservation of Formosan clouded leopard, its prey, and other sympatric carnivores in southern Taiwan
… and the ecology of its prey and other sympatric carnivores in the largest remaining lowland primary forest in southern Taiwan. My research team and I set up 232 hair snare stations and 377 camera trap sites at altitudes of 150-3,092m in the study area. No clouded leopards were photographed in …
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Patterns and processes in chimpanzee hunting behaviour: the chimps and the carnivores: are they really so different?.
Chimpanzees and large, social, mammalian carnivores hunt similarly, yet few studies use comparative methodologies to help understand these animals hunting behaviour. This thesis investigates the extent of current knowledge of chimpanzee hunting in the context of what, how and why chimpanzees hunt. …
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Effective monitoring techniques for carnivores and the role of a dominant mesocarnivore in structuring the carnivore community
… especially for cryptic species like carnivores. Using attractants can increase detections of carnivores, but they must be rigorously tested before use. Similarly, apex predators play a major keystone role in structuring ecosystems but are highly threatened and it is unknown if a …
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La prédation du bétail par les grands carnivores : la complexité d’un conflit hommes-faune et ses possibles solutions
La prédation du bétail par les grands carnivores est l’un des conflits les plus communs avec les communautés locales, et ce, partout sur la planète. Les carnivores sont souvent tuées de manière préventive ou suite à un événement de prédation. Cependant, les populations de la plupart des grands …
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The Status and Conservation Potential of Carnivores in Semi-Arid Rangelands, Botswana The Ghanzi Farmlands: A Case Study
… to determine the potential for conservation of carnivores in the area. The farm block was found to contain good carnivore species diversity and a reduced, but healthy, naturally occurring prey base. Densities of cheetah and leopard were low, but comparable to, or better than, those reported for …
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Mammal diversity in the North Chickamauga Creek Gorge State Natural Area and the effects of internal fragmentation on the relative distributions of mammalian carnivores
… into place. Relative Distributions of Mammalian Carnivores The effects of internal habitat fragmentation caused by a transmission line right of-way on the relative distributions of mammalian predators were studied in the North Chickamauga Creek Gorge State Natural Area in preliminary and primary …
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Comparing density analyses and carnivore ecology in Madagascar's southeastern rainforest
… With few studies dedicated to Madagascar's carnivores, little is known about their ecology. My objectives were to 1) compare density estimation techniques applicable to enumerating rare and/or elusive carnivores, 2) investigate Malagasy carnivore distributions, abundance and density, and …
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THE USE OF TOOTH PIT AND TOOTH/JAW MEASUREMENTS TO IDENTIFY CARNIVORE TAXA RESPONSIBLE FOR DAMAGE ON SCAVENGED BONE
… that are less than 4mm are likely to be made by carnivores the same size or smaller than a jackal. If pit lengths found on long bone epiphyses are between 4mm and 6mm, they are likely to have been made by carnivores roughly the same size as baboons, bears, dogs, and wolves and if the pit lengths …
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