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Showing 1 to 18 of 18 for “"avian communities"”.
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Examining Avian Communities in Wetlands at Multiple Spatial Extents
… My research focuses on how the diverse bird communities that rely on wetlands might be affected by changes to their primary habitat and the surrounding landscape. I utilized data from the North American Breeding Bird Survey (BBS) and the National Land Cover Database (NLCD) to develop a set of …
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A wetland vulnerability assessment : consequences for the avian communities of saltmarshes
… is to investigate these consequences for the avian communities of saltmarshes and associated reed beds. The research has four objectives: to classify saltmarsh and reed bed vegetation distribution; to assess the vulnerability of these habitats to sea level rise; to determine the impacts of sea …
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The impact of wildfire on avian communities: exploring habitat associations two decades after fire
… research has been conducted to address how avian species are responding to vegetation recovery and wildfire-driven conversion multiple decades after wildfire in ponderosa pine ecosystems of the southwestern United States. Understanding how community dynamics differ between low- and …
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A Comparative Study of the Structure of Avian Communities in Selected Tropical and Temperate Habitats
Made available in DSpace on 2014-12-12T01:27:25Z (GMT). No. of bitstreams: 1 7105147.pdf: 3785040 bytes, checksum: 9c8b91b3d9e75988e21996c9d59a41a8 (MD5) Previous issue date: 1970
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AVIAN COMMUNITIES MONITORED ALONG A SUCCESSIONAL CHRONOSEQUENCE IN BOTTOMLAND HARDWOOD FORESTS IN THE LOWER MISSISSIPPI ALLUVIAL VALLEY
… timber harvests. In this study I surveyed bird communities in bottomland hardwood forests in the Lower Mississippi Alluvial Valley along a successional chronosequence. Birds were sampled using automated recording units over 10 days across 149 sites for the breeding bird seasons of 2021 and 2022. …
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Thresholds in avian communities at multiple scales: Relationships between birds, forests, habitats, and landscapes in the Ray Roberts greenbelt, Denton
… The major findings of this study are that bird communities in the corridor forests are associated with a greater array of factors than are bird communities in patches, suggesting that the birds of patch forests are somewhat insulated from landscape-scale effects. Also, habitat values can be …
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Avian breeding ecology in soybean fields: does no-till provide any benefits?
… resulting in declines of their constituent bird communities. Previous research has shown that tillage regimes can affect the suitability of row crop fields as wildlife habitat. Originally created as a soil conservation measure, use of no-till agriculture is increasing in areas of intensive row …
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Effects of exotic invasive vegetation on breeding birds along the North Chickamauga Creek
… a conservation concern not only for native plant communities, but also for wildlife. Breeding bird community structure could be particularly affected by such invasions and subsequent habitat changes as birds respond quickly to changes in habitat resources. During the 2007 breeding season, bird …
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Effects of Urbanization on the Avian Community of Oak Woodlands
… habitat can also alter the structure of local communities. Only species that can survive on or adapt to the resources and conditions of the urban landscape fare well, leading to a reduction in avian diversity, and the homogenization of urban avian communities. The city of Chicago, together with …
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Effects of Harvesting Ponderosa Pine on Birds in the Black Hills of South Dakota and Wyoming
… Wyoming. Yet, the effects of timber harvest on avian communities in this region is poorly understood. The desired future condition of harvested stands of ponderosa pine is approximately 18 m2/ha basal area; basal area of unharvested stands (little or no evidence of timber harvest) is greater. I …
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Response of Breeding Birds to Forest Disturbance in the Arkansas Ozarks: Impacts of Uneven-Aged Management, Ice Damage, and Woodland Restoration
… structure of forests, thereby influencing communities of breeding birds. The objectives of my study were to examine the response of breeding birds and their habitat to three types of forest disturbance: (1) uneven-aged management, (2) ice damage, and (3) woodland restoration. Avian and …
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Post-fire vegetation and bird habitat use in piñon-juniper woodlands
… post-fire forest structure and the associated avian communities one-year and 20+ years post-fire. More specifically, seedling regeneration and the habitat use of piñon-juniper obligate bird species, semi-obligates, piñon seed dispersers, and juniper seed dispersers were compared across burned, …
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BREEDING SEASON AVIAN COMMUNITY COMPOSITION AND PREY AVAILABILITY IN EUCALYPTUS AND SLASH PINE PLANTATIONS OF SOUTHWESTERN LOUISIANA
… seasons of 2014 and 2015. I also compared avian diversity, occupancy, density, and community composition among stand types. Finally, I identified landscape and stand-level factors that affect occupancy by various avian species of conservation concern.</p> <p>Eucalyptus plantations had …
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Assessing the Influence of Prescribed Fire on Faunal Communities in a Pyric Landscape
… predators, occupancy and species richness of avian species, guilds and communities, and vital rates of white-tailed deer (Odocoileus viginianus) fawns. Our results indicated that mammalian predator space use, and avian species richness were influenced by fire and land cover. Mammalian predator …
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Impacts of non-renewable resource extraction on shrubland songbird nest success and abundance
… to the pipeline and unpaved access road. Avian communities significantly differed between impacted and non-impacted sites but the differences were not extractable from vegetative differences. Shannon's diversity and species richness did not differ between impacted and non-impacted sites …
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ASSESSING AND IMPROVING BIODIVERSITY OUTCOMES FOR TROPICAL FOREST RESTORATION
… knowledge and natural history observations, bird communities differed between two distinct forest types within the MBR: bosque bajo (short, low-lying, seasonally flooded forest) and bosque alto (tall, open-understory forest found at slightly higher elevations). My research builds upon this …