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Using the functional response to determine the nature of unequal interference among foragers

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Author

Summary, in English

The food intake rate of foragers may be reduced as a result of interference, which may be asymmetric among individuals and occur as a result of intimidation, direct aggression or filtering. It is important to distinguish among these types of interference, because each can have different consequences for individuals, foraging groups and populations. We demonstrate the application of the functional response as a tool for distinguishing between types of interference. We apply the approach to juvenile Atlantic salmon and show that stepwise elimination of interference types is possible from regression analyses of functional responses, identifying filtering as the only effective type of interference in the study environment.

Publishing year

2004

Language

English

Pages

334-337

Publication/Series

Royal Society of London. Proceedings B. Biological Sciences

Volume

271

Document type

Journal article

Publisher

Royal Society Publishing

Topic

  • Ecology

Status

Published

Research group

  • Aquatic Ecology

ISBN/ISSN/Other

  • ISSN: 1471-2954