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 15 of 15 for “"birds of prey"”.
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Use of Eastern South Dakota Shelterbelts By Nesting Birds of Prey
… abundance, productivity, food habits, and ranges of raptors utilizing shelterbelts were in a 78 km² Brookings County study area. The shelterbelts were heterogeneous stands of trees and shrubsplanted in linear rows. Major tree species included elm (Ulmus spp.), green ash (Fraxinus pennsylvanica), …
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Improved detection of human involvement in avian wildlife crime
… to global biodiversity and the delicate balance of ecosystems. At present, the availability of forensic evidence is a limiting factor for the successful prosecution of wildlife crime offences across the world. As one of the UK’s current wildlife crime priorities, raptor persecution includes the …
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Into the water
… stories. The stories are written in the mode of magical realism, which can be described in terms of the merger between the realistic and the fantastic. A main consideration addressed in specific definitions of the mode is how completely the reader believes in the magical elements of a story as …
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Aggressive Aerial Grasping using a Soft Drone with Onboard Perception
Contrary to the stunning feats observed in birds of prey, aerial manipulation and grasping with flying robots still lack versatility and agility. Conventional approaches using rigid manipulators require precise positioning and are subject to large reaction forces at grasp, which limit performance …
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Knemidokoptic mite infections on the Cape Peninsula population of Black Sparrowhawks
… subcutaneous mites that are found in the skin of the face, legs or body of avian hosts, the symptoms of which can range from featherloss and skin lesions to beak deformities. Although known to infect multiple species of Passeriform birds, very few cases have ever been reported in birds of prey. …
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Dynamic soaring beyond biomimetics: control of an albatross-inspired wind-powered system
… than rest. While thermal soaring, exploited by birds of prey and sports gliders, consists of simply remaining in updrafts, extracting energy from horizontal winds necessitates redistributing momentum across the wind shear layer, by means of an intricate and dynamic flight manoeuver. …
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The Impact of Wind Turbines on the Distribution of Wintering and Migrating Raptors
… affect surrounding wildlife. Raptors are birds of prey and are potentially susceptible to being negatively affected by wind turbines. Raptor collisions with wind turbines are well-studied, but the potential for their spatial displacement due to wind turbines has received less attention. …
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Habitat Requirements and Foraging Ecology of the Madagascar Fish-Eagle
With a population estimate of 99 pairs, the Madagascar fish-eagle (Haliaeetus vociferoides) is one of the rarest birds of prey in the world. I investigated the ecological requirements of the Madagascar fish-eagle in 1994 and 1995 to help determine management action to prevent its extinction. I …
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Wildlife Trade in the Digital Age: The Role of the Internet in Monitoring the Trade in Wild Plants and Animals in Thailand
… exacerbated in the 21st century as a result of increased globalisation and Internet accessibility. In this thesis, I aim to develop the understanding of wildlife trade in the digital age by examining the role of the Internet in monitoring trade in wild plants and animals in Thailand. The …
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A taphonomic investigation of the agency of microfaunal accumulation at Elands Bay Cave
Up until the present, analyses of micromammal assemblages in South Africa have been based upon the premise that the agent responsible for the accumulation of these assemblages was the Barn owl. These micromammal assemblages were used to make extrapolations of past changes in vegetation and climate. …
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Raptor Use of the Idaho National Engineering Laboratory
… change. I conducted a basic ecological study of raptors using the Idaho National Environmental Laboratory (INEL), in southeastern Idaho, between 1991 and 1993 to assess effects of human activity on the site. Results were compared to previous raptor studies conducted on the INEL from 1974-1976 …
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Finding balance in unequal relations: the burial of humans and animals in the Viking Age world
The nature of human-animal relationships in the past, like in the present, is intrinsically unbalanced, with humans ultimately holding power over the life and death of many other animal species. This is also true for Viking Age burial customs, where different types of animals were commonly killed …