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 9 of 9 for “"House Finch"”.
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The expansion of the eastern house finch population and its impact on populations of house sparrows, purple finches and American goldfinches
Houses Finches became a breeding species in Indiana in 1981 and subsequently went through a rapid population increase. This study was an investigation of the growth of the House Finch population and its impact on House Sparrows, American Goldfinches and Purple Finches in Indiana. Data from the …
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From Psychology to Phylogeny: Bridging Levels of Analysis in Cultural Evolution
… changes in music sampling traditions and house finch song, using a combination of agent-based modeling and machine learning. The sixth chapter is a technical report on computerized birdfeeders that were used to remotely collect data on the social network structure of a wild house finch …
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Behavioral Heterogeneity and Disease Dynamics in House Finches (Haemorhous mexicanus)
… First, we examined the relationship between house finch (Haemorhous mexicanus) stress physiology, exploratory behaviors, and social behaviors in the wild. We provided evidence that more exploratory house finches interact with more individuals in the wild, and have higher baseline …
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Understanding the Evolution of Emerging Bacterial Pathogens in Response to Host Resistance
… and its recently infected novel host the House Finch (Haemorhous mexicanus). Approximately 25 years ago this pathogen jumped from its established host in chickens into the wild passerine finch species, triggering an epidemic which has been well monitored from the outset We aim to address …
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Infectious disease as a cause and consequence of phenotypic responses to challenge in a songbird species
… used experimental captive studies on wild-caught house finches (Haemorhous mexicanus) to elucidate how an animal might shift its phenotypes when presented with an ecological challenge. In the first experiment, I examined how nutritional stress during nestling development impacted the magnitude of …
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Potential Downstream Immunological Effects of Evolved Disease Tolerance in House Finches
… gallisepticum (MG) jumped from poultry into house finches, causing severe conjunctivitis and reducing host survival. MG then spread across the continental United States, exerting strong selection on host populations and creating geographic variation in the degree of population co-evolutionary …
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Effects of Bird Feeder Density on the Behavior and Ecology of a Feeder-Dependent Songbird: Patterns and Implications for Disease Transmission
… and movement across the landscape in wild house finches (Haemorhous mexicanus), a feeder-dependent species subject to outbreaks of a contagious pathogen commonly spread at feeders. The local abundance of house finches was significantly higher at sites with high feeder density but, …
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Exposure heterogeneity, host immunity and virulence evolution in a wild bird-bacterium system
Immunological heterogeneity is the norm in most free-living vertebrate populations, creating a diverse and challenging landscape for pathogens to replicate and transmit. This dissertation work sought to determine sources of immunological heterogeneity, as well as the consequences of this …
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Effects of ambient temperature on mechanisms of pathogen transmission in house finches (Haemorhous mexicanus)
… a naturally occurring songbird-pathogen system. House finches (Haemorhous mexicanus) are small songbirds that rely on bird feeders to meet thermoregulatory demands during winter. However, interactions with other birds at the feeder and contact with contaminated feeder surfaces are important …