Global ETD Search
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Showing 1 to 10 of 10 for “"Melospiza melodia"”.
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PATERNAL ATTRACTIVENESS AND PARENTAL INVESTMENT STRATEGIES IN SONG SPARROWS MELOSPIZA MELODIA
… rates in a wild population of song sparrows (Melospiza melodia melodia). Male song complexity appeared to affect female mating tactics, as males that had smaller song repertoires lost paternity more frequently than did males retaining full paternity within the offspring of their social mate. …
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Song learning in the song sparrow (Melospiza melodia): ecological and social factors
… Washington population of song sparrows ( Melospiza melodia). In the first study, I examined the song repertoires of an entire cohort of males and compared them to those of potential song tutors. I found that a young male (1) learns whole song types, (2) learns songs from multiple tutors …
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Behavior, Physiology, and Reproduction of Urban and Rural Song Sparrows (Melospiza Melodia)
… habitats more generally. Using song sparrows (Melospiza melodia), a native songbird commonly found in urban areas, I explored responses to urbanization and the drivers and consequences of these responses with an eye toward understanding whether song sparrows had successfully adapted to urban …
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Birds on Modified Wetlands in Eastern South Dakota
… wren (Cistothorus palustris), and song sparrow (Melospiza melodia). Analysis of variance was used to test between treatment (modified and natural plots on the wetlands) differences for the dependent variables: density, bird species diversity, species richness, and equitability. No significant …
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Rapid social regulation of 3β-HSD activity in the songbird brain
… However, some animals such as song sparrows (Melospiza melodia) are aggressive year-round, even during the non-breeding season, when gonads are regressed and systemic testosterone (T) levels are non-detectable. In contrast, levels of the prohormone dehydroepiandrosterone (DHEA) are elevated …
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Urbanization affects environmental conditions for developing songbirds
… high food intake requirements. Song sparrows (Melospiza melodia) are a model wild songbird system that persist in both urban and rural habitats, and have young that develop very quickly. I investigated how urbanization changes the arthropod community, how that in turn affects nestling diet, and …
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Cities for birds, birds for cities: The urban ecology of birds across scales from global sampling to individual responses
… taxa. In Chapter 4, I focus on song sparrows (Melospiza melodia) nesting in an urban landscape to test how fine-scale variation in human activity and infrastructure around nests predicts incubation behaviour and reproductive success. Females breeding in areas with higher human activity adjust …
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Grassland and Woodland Bird Occurrence and Habitat Selection in the Prairie-Forest Transition Zone of Minnesota
… trichas)</em>, Song Sparrows <em>(Melospiza melodia)</em>, Red-winged Blackbirds <em>(Agelaius phoeniceus)</em>, Sedge Wrens <em>(Cistothorus platensis)</em>, and Bobolinks<em> (Dolichonyx oryzivorus)</em> were present on the most grassland points, while Eastern Wood-pewees …
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Effects of urbanization on the physiology, behavior, and fitness of a wild songbird
… between urban and rural living song sparrows (Melospiza melodia) to explore how song sparrows are adjusting to urban environments. In my first chapter, I investigated urban birds' termination of the glucocorticoid stress response by looking at their ability to reduce circulating levels of …
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Bird utilization of habitat in residential areas
… of lawn; (winter R²=0.77). Song sparrows (Melospiza melodia) were correlated with volume of vegetation near ground level; (winter R²=0.29, spring R²=0.35).