Global ETD Search
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Showing 1 to 7 of 7 for “"Nest Attendance"”.
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Eggs, incubation and hatching asynchrony in gulls
… patterns in gulls using measurements of mean nest attendance and daily change of nest attendance. Hatching patterns were influenced by incubation behaviour during egg-laying and early incubation behaviour. As parents spent more time in their nests, a brood hatched more synchronously and …
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Spatial Patterns and Multi-Scale Habitat Selection of the Mudsnake (Farancia Abacura) at the Northern Limits of Its Range
… the sole gravid 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 …
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The influence of temperature on parental investiment in Common Fiscal and consequences for nestling growth
… has a negative effect on daily mass gain in the nestlings of Common Fiscal (Lanius collaris) breeding in the southern Kalahari. This effect may be driven by parents modifying their provisioning rates at high temperature, but the mechanisms underpinning the relationship are not known. I …
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The function and evolution of egg colour in birds
… unspotted white and blue-green eggs laid in open nests. The goal of my dissertation is to investigate the functional significance and selective pressures facing the evolution of egg colour. In Chapter 2, I investigate whether egg colour serves as signal of female quality. I find little support for …
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Cities for birds, birds for cities: The urban ecology of birds across scales from global sampling to individual responses
… 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 incubation rhythms, …
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Physiological, Behavioral and Reproductive Responses of Black -Capped Vireos and White -Eyed Vireos to Human Disturbance
… where training was restricted. I quantified nest attendance and song rate in response to repeated human intrusion at nests or approach to singing territorial males of both vireo species in 2003 and 2004. At the first intrusion, mean flush distance of incubating adults was 0.89+/-0.32 (SE) m …
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Age-specific reproductive success and its contributing factors in the endangered golden-cheeked warbler
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-12-01