Journal article 1296 views
Construction of energy landscapes can clarify the movement and distribution of foraging animals
,
Victoria Hobson
Proceedings of the Royal Society B: Biological Sciences, Volume: 279, Pages: 975 - 980
Swansea University Authors:
Rory Wilson , Victoria Hobson
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1098/rspb.2011.1544
Abstract
<p>Variation in the physical characteristics of the environment should impact the movement energetics of animals. Although cognizance of this may help interpret movement ecology, determination of the landscape-dependent energy expenditure of wild animals is problematic. We used accelerometers...
| Published in: | Proceedings of the Royal Society B: Biological Sciences |
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| ISSN: | 0962-8452 1471-2954 |
| Published: |
2012
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa6122 |
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| Abstract: |
<p>Variation in the physical characteristics of the environment should impact the movement energetics of animals. Although cognizance of this may help interpret movement ecology, determination of the landscape-dependent energy expenditure of wild animals is problematic. We used accelerometers in animal-attached tags to derive energy expenditure in 54 free-living imperial cormorants <em>Phalacrocorax atriceps</em> and construct an energy landscape of the area around a breeding colony. Examination of the space use of a further 74 birds over 4 years showed that foraging areas selected varied considerably in distance from the colony and water depth, but were characterized by minimal power requirements compared with other areas in the available landscape. This accords with classic optimal foraging concepts, which state that animals should maximize net energy gain by minimizing costs where possible and show how deriving energy landscapes can help understand how and why animals distribute themselves in space.</p> |
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| College: |
Faculty of Science and Engineering |
| Start Page: |
975 |
| End Page: |
980 |