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  When more is less: the fitness consequences of predators attacking more unpalatable prey when more are presented

Rowland, H. M., Wiley, E., Ruxton, G. D., Mappes, J., & Speed, M. P. (2010). When more is less: the fitness consequences of predators attacking more unpalatable prey when more are presented. Biology Letters, 6(6), 732-735. doi:10.1098/rsbl.2010.0207.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-C6DF-D Version Permalink: https://hdl.handle.net/21.11116/0000-000D-856B-5
Genre: Journal Article

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http://dx.doi.org/10.1098/rsbl.2010.0207 (Publisher version)
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 Creators:
Rowland, Hannah M.1, Author           
Wiley, E., Author
Ruxton, G. D., Author
Mappes, J., Author
Speed, M. P., Author
Affiliations:
1External Organizations, ou_persistent22              

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 Abstract: In 1879, Fritz Muller hypothesized that mimetic resemblance in which defended prey display the same warning signal would share the costs of predator education. Although Muller argued that predators would need to ingest a fixed number of prey with a given visual signal when learning to avoid unpalatable prey, this assumption lacks empirical support. We report an experiment which shows that, as the number of unpalatable prey presented to them increased, avian predators attacked higher numbers of those prey. We calculated that, when predators increase attacks, the fitness costs incurred by unpalatable prey can be substantial. This suggests that the survival benefits of mimicry could be lower than Muller proposed. An important finding is, however, that these costs decline in importance as the total number of available prey increases.

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Language(s): eng - English
 Dates: 2010
 Publication Status: Issued
 Pages: -
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 Rev. Type: -
 Identifiers: Other: EXT497
DOI: 10.1098/rsbl.2010.0207
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Title: Biology Letters
  Other : Biol. Lett.
Source Genre: Journal
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Publ. Info: London, [England] : The Royal Society
Pages: - Volume / Issue: 6 (6) Sequence Number: - Start / End Page: 732 - 735 Identifier: ISSN: 1744-9561
CoNE: https://pure.mpg.de/cone/journals/resource/954925580128