Factors affecting daily activity budgets of South Georgian shags during chick rearing at Bird Island, South Georgia
Article Abstract:
A research study used radio telemetry for gathering data on the daily activity budgets of 26 South Georgian shags at Bird Island, GA, at a time when chicks are being reared. A significant sex difference was observed in feeding times. The female makes the first trip of the day, as observed in 93% of the shag pairs. Results show that the breeding shags sampled are limited in their ability to increase the time available to capture their prey. In addition, the population could be overly sensitive to food availability changes.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1995
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Nest-site characteristics of the socorro green parakeet
Article Abstract:
A research study presents information on the nesting habits and nest-site characteristics of the Socorro green parakeet to make up for the non-existence of published information and the lack of biological information on the species. The Aratinga holochlora brevipes is endangered by the increasing degradation of its habitat as a result of overgrazing by sheep on the Mexican island inhabited by the birds. Overgrazing also threatens most of the island's endemic avifauna.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1995
User Contributions:
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