Diving behaviour differs between incubating and brooding Brunnich's guillemoth's, Uria lomvia
Benvenuti S., Dall'Antonia S., Falk K.
comuter applications General Agricultural and Biological Sciences
Bird-borne data loggers were used to investigate the foraging strategies of Brünnich's guillemots breeding in a colony in the North Water Polynya: the flight performance and diving activity of incubating birds were compared to those of chick-rearing individuals. No significant differences were recorded between the bird groups in the potential foraging range. Conversely, clear differences were revealed between incubating and chick-rearing birds in diving behaviour. Chick-rearing birds were generally foraging at a significantly greater depth, and spent significantly higher proportions of the time submerged, than brooding individuals. Despite these differences, the estimated average daily energy expenditure of chick-rearing Brünnich's guillemots was only about 6% higher than that during incubation.
Source: Polar biology (Print) 25 (2002): 474–478. doi:10.1007/s00300-002-0372-0
Publisher: Springer., Berlin;, Germania
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@article{oai:it.cnr:prodotti:43655,
title = {Diving behaviour differs between incubating and brooding Brunnich's guillemoth's, Uria lomvia},
author = {Benvenuti S. and Dall'Antonia S. and Falk K.},
publisher = {Springer., Berlin;, Germania},
doi = {10.1007/s00300-002-0372-0},
journal = {Polar biology (Print)},
volume = {25},
pages = {474–478},
year = {2002}
}