Global ETD Search
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Showing 1 to 5 of 5 for “"Farmland birds"”.
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Factors affecting foraging by breeding farmland birds
… and song thrush <i>Turdus philomelos</i>) on farmland, in relation to microhabitat and the availability of invertebrates. Fieldwork was conducted on a lowland mixed arable farm in Leicestershire over the breeding seasons 2000 - 2002. Telemetry was used to monitor adult song thrushes and …
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Population genetics of the farmland sawfly <em>Dolerus aeneus</em> (Hymenoptera, Symphyta)
Over the last 50 years populations of certain farmland birds have undergone severe declines over the same timescale that agriculture has intensified. The larvae of grassland sawflies (Hymenoptera, Symphyta) are a key component of the fledgling diet and it is thought that agri-intensification has …
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Reproductive success and survival of the Common Grackle in central Illinois
… important for assessing the risk to other farmland birds and the health of the environment. I collected demographic data from Common Grackle colonies at two rural study sites in Champaign County, Illinois in 2018 and 2019. I monitored 188 nests and tracked the survival of 53 fledglings for …
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The foraging behaviour of granivorous birds: a mechanistic perspective.
… response models have been applied to granivorous farmland birds and these models often have simplifying assumptions that are likely to be inappropriate for these foragers. Consequently, the functional response models that often lie at the core of behavioural-based population models are untested …
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Nestling Diet, Quality, and Post-fledging Survival: Comparing Two Species of Aerial Insectivores in a Gradient of Agricultural Intensity in Saskatchewan, Canada
… driver of annual population growth in songbirds.