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 14 of 14 for “"Diel activity"”.
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Understanding the diel activity patterns and determinants of abundance of the eastern whip-poor-will
Made available in DSpace on 2022-01-12T21:45:29Z (GMT). No. of bitstreams: 2 SOUZA-COLE-THESIS-2021.pdf: 1817522 bytes, checksum: 7750bd89e488f50864a46a348287fda1 (MD5) LICENSE.txt: 4211 bytes, checksum: 2aa065f767c6132c154f17aa7c3bf85f (MD5) Previous issue date: 2021-07-08
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Effect of population density on diel activity and growth in stream-dwelling Arctic charr Salvelinus alpinus
… However, the way individuals may modify their diel activity in response to increased competition has received limited attention. I used juvenile (age 1+) Arctic charr Salvelinus alpinus as a model species to test the prediction that individuals at high population density will increase their …
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A DYNAMIC LANDSCAPE OF FEAR: HUMAN IMPACTS ON CARNIVORE COMMUNITIES
… Further, growing evidence shows that human activity can impact carnivore behavior and community structure by altering predator-prey interactions, shifting diel activity patterns, and altering wildlife movement leading to increased sightings, nuisance reports, and harvests. To investigate how …
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Camera traps as sensor networks for space-time exploration of terrestrial mammal communities
… brought about by seasonality by adjusting their diel activity rhythms between winter and summer, resulting in a reduction of time exposure to a physiologically stressful environment caused by high temperatures in summer. It also highlighted that while some shifts only result from photoperiodism …
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The Spatial Ecology of Wild Pigs (Sus scrofa) in Southwest Florida
… a thorough understanding of movement behavior, diel activity patterns, space use, and resource selection. Currently, limited empirical evidence is available on the ecology of wild pigs in Southwest Florida. Therefore, I examined how wild pigs behaviorally modified their movements and diel …
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Behavioural Ecology of Large Tuna
… acute escape (5-9 hours) followed by prolonged activity disruption (mean: 11 days, range: 2-26 days). Multi-metric assessments revealed spatial displacement, diel activity patterns, and depth use recovered at different rates with high individual variation. Chapter 5 compares behavioural …
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American Eel Distibution and Growth in Selected Tributaries of the James River
… the least amount of movement in winter 2000-01. Diel activity was significantly lowest in winter 2000-01 and highest in spring 2001. From late October 2000 through May 2001, eels appeared to be buried within the interstitial spaces of the stream bottom and under stream banks. Habitat preference …
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Ecological insight into three neotropical deer species: A study of spatial and diel distributions of white-tailed, Central American red brocket, and Yucatan brown brocket deer in northern Belize, Central America
… detection driven by low canopy and high human activity, while RBD aligned with a forest-interior specialist, requiring high canopy, dense understory, and narrow roads. Both species maintained high occupancy (psi) across years (WTD psi 0.55-0.77; RBD psi 0.52-0.81), but their spatial overlap …
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Behavioral ecology of coral reef fishes at spawning aggregation sites
… regarding the adaptive nature of different diel reproductive cycles observed in coral reef fishes. This study quantified the spawning patterns of eleven different reef fish species at one location (Johnston Atoll, Central Pacific), while making simultaneous measurements of the environmental …
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Unraveling the Vibrational Communication of Halyomorpha halys and the Insecticidal Impact on its Key Parasitoid Trissolcus japonicus: Implications for Integrated Pest Management and Biological Control
… knowledge gaps are still present regarding the diel rhythm of its vibrational communication as well as its post-diapause biology, which could be crucial for the integrated management of this pest. For that reason, the effect of different temperature scenarios on the post-diapause signaling, …
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Investigating the conservation value of leopard population indices obtained through camera traps in the greater Kruger region of South Africa
… Specifically, I investigate temporal leopard activity quantified using time stamps on photographs of individuals and the potential drivers of activity patterns across differentsites as well asthe relationship between phenotypic similarity derived from photographs of known individuals and …
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Recovery From and Effects of a Catastrophic Flood and Debris Flow on the Brook Trout (<i>Salvelinus fontinalis</i>) Population and Instream Habitat of the Staunton River, Shenandoah National Park, VA
… effects of the debris flow on movement, activity, and growth of fish in the debris flow affected and unaffected areas of the stream. Post-recolonization movement and activity were monitored using two-way fish traps (weirs), mark-recapture techniques, and radio telemetry. The weirs failed …
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UNDERSTANDING THE INFLUENCE OF ANTHROPOGENIC HABITAT MODIFICATION ON URBAN ANIMALS: CASE STUDIES OF CARRIBEAN LIZARDS AND NORTH AMERICAN MAMMALS
Global urbanization is rapidly expanding, leading to habitat degradation and fragmentation, which present strong challenges for native wildlife. At the same time, urbanization is often accompanied by the introduction of non-native species, which alter community and habitat structures. These changes …
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Seasonal Distributions, Movements, and Habitat use of Adult Yellow Perch in a Simple Basin
… telemetry was used to examine seasonal and diel movement patterns of two size groups (small = 219-235 mm TL, large = 250-270 mm TL) of adult yellow perch in Lake Madison, South Dakota from October 2004 through September 2005. At the beginning of each season (fall 2004, spring and summer …