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 23 for “"ground-nesting"”.
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Post-breeding public information use in a ground-nesting songbird community
… season are PI cues used by Veeries and other ground-nesting songbirds (i.e., Ovenbirds [Seiurus aurocapilla]) for territory establishment in subsequent breeding seasons. Moreover, I hypothesize that ground-nesters integrate multiple social cues sampled throughout the breeding season when …
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Chronic contact exposure to realistic soil concentrations of a neonicotinoid insecticide represents a potentially important and unexplored route of exposure for ground nesting bees
… for bees, the majority of which nest in the ground. The aims of this thesis are to examine this route of exposure and to determine potential sublethal effects. In chapter 1, I explore the effects of chronic contact exposure during to realistic soil concentrations of imidacloprid - the most …
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The Bees of Two Sites in the Big Thicket National Preserve, Texas, with a Consideration of the Effects of a Rare Flooding Event
… and after the flood were mostly attributed to ground nesting bees.</p>
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Floral abundance and soil characteristics affect wild bee community structures and nesting dynamics in tallgrass prairies
… utilize burning, but haying removes aboveground biomass and PBG includes grazing by cattle. The impacts of these management practices on important ecological factors for bee species, such as floral community structure and nesting resources are examined in this study. Floral resources and …
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Effects of burn season on bee and floral community in tallgrass prairies, and the use of museum collections data
… both burn seasons increased the amount of bare ground compared to unburned areas, but growing season burns contained greater total area of bare ground than dormant season burns. This resulted in an increase in abundance of below-ground nesting bee species after growing season burns. The decrease …
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The role of preen oil and body odour in birds
… and sex differences can be predicted by the nesting ecology of the species (uni- vs biparental incubation, ground vs non-ground nesting) (Chapter 2). These results suggest that preen oil odours could be used to increase olfactory crypsis at the nest, especially in ground-nesting species, but …
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Food Habits and Energy Utilization of Badgers
… two energy-balance and three digestion trials. Ground squirrels, mice and rabbits were found to be the most important mammal foods eaten. Birds and eggs were only eaten during spring and summer. Toads and grains were important fall foods. Insects were eaten throughout the year but usually only …
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Small mammal demographics in North Dakota conservation reserve program plantings
… prey to avian and mammalian predators of ground nesting birds.</p>
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ENDOCRINE-MEDIATED ORGANIZATIONAL EFFECTS ON PERSONALITY AND STRESS IN NAZCA BOOBIES
… socially and genetically monogamous, long-lived, ground-nesting, pelagic seabirds that have been the subject of recent behavioral and endocrine research due to two aspects of their life-history: obligate siblicide, and maltreatment of nestlings by unrelated non-breeding adults. The frequency of …
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Impacts of elk management and riparian condition on songbirds in Rocky Mountain National Park
… on bird communities, with the exception of shrub nesting birds which occurred at higher densities within exclosures. However, the density and occupancy of some riparian bird species and guilds was positively correlated with particular vegetation conditions in this ecosystem. Shrub height …
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Toxicity assessment of pesticides and biopesticides on wild and managed bees (Hymenoptera, Apoidea), and richness evaluation in mediterranean and tropical agroecosystems
… and biopesticides caused reduced survival of ground-nesting wild bees of Andrena and Eucera species, and altered the locomotor behavior of managed bees. Synthetic insecticides used to protect greenhouse tomato plants reduced the survival and caused changes in feeding behavior, and midgut …
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The population dynamics and conservation of the African Black Oystercatcher, Haematopus moquini
… low and variable breeding success; (b) its ground-nesting habit, making it vulnerable to numerous direct and indirect impacts of human disturbance; (c) its susceptibility to mass mortalities, particularly of adult birds in high-density breeding populations. Inherent factors which may of …
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Regulatory Capacity, Governance Failure, and the Challenge of Urgent Environmental Problems: A Critical Analysis of Conservation Strategies for the Greater Sage-grouse
… to protect the greater sage-grouse—a charismatic ground-nesting bird. To respond to both economic and environmental objectives, public and private actors emphasized biodiversity offsetting as a response to obligations under the Act. Offsetting enables developers—e.g., oil and gas drillers, mining …
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Exploring the interplay of ecological and social factors in human-induced disturbance of the African Oystercatcher (Haematopus moquini): insights and management recommendations for conservation
… to human disturbance because they are a ground-nesting species that breeds during the height of the South African holiday and tourist season (October-March). Domestic dogs (Canis familiaris) are heavily implicated in the lower breeding success rates evident in mainland African …
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Factors affecting piping plover (Charadrius melodus) nest site selection following landscape and predator community changes
… and human interventions significantly impact nesting habitat use by species like the piping plover (Charadrius melodus) along Atlantic coastlines. Our study focused on Fire Island, New York, assessing changes in vegetation succession, plover nesting habitat selection, and suitable nesting …
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Post-management vegetation change in upland heather moorland, with particular reference to the nutrient status of soils : Lake Vyrnwy Estate, Powys, Mid Wales
… an essential habitat for diverse populations of ground-nesting moorland birds. Common heather - Calluna vulgaris (L) Hull - is typically the dominant species of this semi-natural habitat, providing both nutrition and cover for these bird populations.<br/><br/>Much heather-dominated vegetation is …
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EFFECTS OF SCALE AND HABITAT MANAGEMENT ON GRASSLAND BIRD RESPONSE IN CONSERVATION RESERVE PROGRAM FIELDS IN NORTHWEST ILLINOIS
… and other taxa have rarely incorporated on-the-ground habitat management while simultaneously investigating site-specific species turnover dynamics (Chapter 1) and daily nest survival (Chapter 2). Also, habitat management-related studies often suffer when not accounting for inherent variation …
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Land use and breeding ecology of a renosterveld endemic bird: the Agulhas Long-billed Lark Certhilauda brevirostris
… the leading contributors to biodiversity loss. Ground-nesting birds are especially vulnerable. Understanding the distribution and nesting requirements of a species is important, particularly if that species exists almost entirely within a human-modified landscape. The Agulhas Long-billed Lark …
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Causes and Implications of Fox Population Dynamics in Central Southern England
… managers to conserve threatened populations of ground-nesting wading birds, such as the Eurasian curlew (Numenius arquata). Compensatory immigration is the primary mechanism that happens in response to culling in population sinks, and occurs because culling in restricted-areas generally fails to …
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