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 17 of 17 for “"Nesting behavior"”.
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A Comparison of Eastern Gray Squirrel (Sciurus Carolinensis) Nesting Behavior among Habitats Differing in Anthropogenic Disturbance
… introduced populations, suggests this species is behaviorally flexible. The purpose of this study was to determine the effect of anthropogenic disturbance and development on gray squirrel nesting behavior by comparing variables related to nesting habitat preference among habitats of differing …
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Breeding and Nesting Behavior and Habitat of the Red-billed Pigeon (Columbia flavirostris) along the Rio Grande River in Texas
… along the Rio Grande River, to determine the nesting cycle with corresponding breeding and nesting behavior, and to describe preferred habitat along the Rio Grande River. Courtship and pair formation behaviors were observed during the 2000 and 2001 breeding seasons. Behaviors and vocalizations …
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Nesting Behavior, Growth Rates, and Size Distribution of Loggerhead Sea Turtles (Caretta Caretta) on Blackbeard Island National Wildlife Refuge: An Evaluation of Recruitment In Georgia
… the coast of Georgia and Northern Florida. The nesting trends on BLB NWR were evaluated to provide updated information for existing management plans as well as to determine if recruitment was occurring. The in-water study also shed insight on the status of recovery for the population as a whole. …
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Spatial Patterns and Multi-Scale Habitat Selection of the Mudsnake (Farancia Abacura) at the Northern Limits of Its Range
… female displayed a sedentary nest attendance behavior. Home range size was highly variable (0.1 – 80.0ha) and could not be statistically explained by size or sex. At the landscape level snakes occupied ditches in disproportion to their abundance but showed a preference for bottomland hardwood …
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Reproductive Biology of Alligator Snapping Turtles: Behavior, Reproductive Investment, and Nest Predation
… interest. Specifically, I studied: (1) nesting behavior and (2) maternal reproductive investment patterns in a captive alligator snapping turtle population housed outdoors under semi-natural conditions, and (3) nest predation patterns in a reintroduced population. Both sites were located …
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Behavior, welfare, production and bioenergetics of laying hens in alternative housing systems
… scientific knowledge or discoveries related to behavior, welfare, production, and bioenergetics of laying hens in alternative housing systems. It covers five experiments that were conducted in controlled environment and commercial settings with the following specific objectives: 1) Develop and …
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The Spatial and Temporal Ecology of Seed Dispersal by Gorillas in Lopé National Park, Gabon: Linking Patterns of Disperser Behavior and Recruitment in an Afrotropical Forest
… suggest that gorilla foraging and nesting behavior in particular, impose both spatial and temporal limitations to the distribution of dispersed seeds. In addition, temporal variation in the gorilla diet and factors that affect defecation rates and locations promote variation in the …
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The Effects of Urbanization on Tick Parasitism Rates in Birds of Southeastern Virginia
… bird life history traits, such as foraging and nesting behavior. The most common life stage and tick species collected from birds were larval rabbit ticks (Haemaphysalis leporispalustris), followed by larval bird ticks (Ixodes brunneus). This study demonstrates how levels of urbanization can …
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Response of Vegetation and Endangered Waterbirds to Habitat Management Techniques at Kealia Pond National Wildlife Refuge
… Pond National Wildlife Refuge in Mau’i, Hawai’i. Nesting behavior was confirmed following management treatments on the northern shore of Kealia Pond. Nests were dispersed or randomly spaced within vegetation patches or newly created mudflat habitat. Pickleweed and makai were the dominant …
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Effects Of A Shore Protection Project On Loggerhead And Green Turtle Nesting Activity And Reproduction In Brevard County, Florida
… correlated with the stability and quality of the nesting environment. Because females show fidelity to key nesting beaches, the management and physical characteristics of these beaches directly affect future generations of marine turtles and may be essential for the recovery of these threatened …
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Breeding Biology Of Chuck-Will's-Widows: Incubation, Brooding, And Provisioning Behavior And Characteristics Of Nest Sites
… carolinensis) are cryptically colored grounding-nesting nightars that breed throughout much of the eastern United States, primarily in mixed-forest habitat. Because of their cryptic plumage and nocturnal habits, little is known about their behavior, particularly their breeding and nesting …
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Role of Hepatic Lipoprotein Receptor-related Protein 1 (LRP-1) on Amyloid Beta Pathology in a Mouse Model of Amyloidosis
… LRP1 group (n=7). 12 weeks after LRP1 silencing, behavioral studies including Y-maze, nesting behavior, and open-field testing, were performed, and mice were sacrificed. The brain, liver, and plasma were collected to measure Aβ load using immunoassays. After performing all these studies, we did …
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The effect of beach renourishment on sea turtle nesting and hatching success at Sebastian Inlet State Recreation Area, East-Central Florida
… the inlet. The renourished beach, a high density nesting beach for loggerhead (Caretta caretta) and green (Chelonia mydas) sea turtles, is within the proposed Archie Carr National Wildlife Refuge and will play a critical role in the long-term maintenance of Sebastian Inlet as a navigable waterway. …
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Nesting Success and Parental Behavior of the Prothonotary Warbler (Protonotaria Citrea) in Southwestern Missouri
… Missouri in 2014 and 2015, using wooden nesting boxes. Data were collected on clutch and brood sizes, the numbers of young fledged, parental care and male singing rates. Five pairs were studied over the course of the two summers. Of 28 eggs laid, 14 young fledged. In 2015, significant …
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Morphological, Genetic, and Ecological Insights into the Puerto Rican Tody: Investigating Variation Between and Within Dry Forest and Rainforest Populations
… differences in morphology, physiology, and behavior between habitats, results revealed only subtle population structure and low overall genetic differentiation, suggesting that trait variation may be driven by phenotypic plasticity. Historic demographic analyses indicated that both …
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Population Dynamics of the Endangered Black-capped Vireo (Vireo atricapilla)
Landscape heterogeneity and fragmentation create local populations that differ in habitat availability and predator communities and present unique tradeoffs between reproductive success and survival. Varying demography across the landscape can result in a metapopulation structure and the …
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A Method for Detecting Nesting Activity, Thermal Implications of Different Nesting Strategies, and Activity Patterns of Ornate Box Turtles (Terrapene Ornata)
… that uses automated radio telemetry to identify nesting activity, allowing me to non-disruptively collect eggs from a species in which nests are notoriously difficult to find, and to monitor the nesting activity of many more animals than would otherwise be possible. Nest searches revealed that …