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2 - Filters

Published online by Cambridge University Press:  18 November 2021

Daniel C. Laughlin
Affiliation:
University of Wyoming
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Summary

The community is a subset of the species pool created by the action of one or more environmental filters. We propose (Proposition 1) that in any habitat, the power of a filter can be measured as the proportion of species that it removes from the species pool. Filters can be abiotic or biotic in origin. Drought, frosts, hypoxia and wildfires are important abiotic (physical) filters, while predation (including herbivory) and competition are important biotic filters. We also propose (Proposition 2) that in any habitat only a small number of filters is likely important. Moreover (Proposition 3), in any region a large number of species are likely controlled by the same filters. These three propositions provide guidance for setting priorities in research and habitat management. One of the most important challenges in community ecology is to identify and rank the filters that control species composition in specified landscapes.

Type
Chapter
Information
A Framework for Community Ecology
Species Pools, Filters and Traits
, pp. 41 - 75
Publisher: Cambridge University Press
Print publication year: 2021

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  • Filters
  • Paul A. Keddy, Daniel C. Laughlin, University of Wyoming
  • Book: A Framework for Community Ecology
  • Online publication: 18 November 2021
  • Chapter DOI: https://doi.org/10.1017/9781009067881.003
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To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

  • Filters
  • Paul A. Keddy, Daniel C. Laughlin, University of Wyoming
  • Book: A Framework for Community Ecology
  • Online publication: 18 November 2021
  • Chapter DOI: https://doi.org/10.1017/9781009067881.003
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Filters
  • Paul A. Keddy, Daniel C. Laughlin, University of Wyoming
  • Book: A Framework for Community Ecology
  • Online publication: 18 November 2021
  • Chapter DOI: https://doi.org/10.1017/9781009067881.003
Available formats
×