Regional zooplankton dispersal provides spatial insurance for ecosystem function
Abstract Changing environmental conditions are affecting diversity and ecosystem function globally. Theory suggests that dispersal from a regional species pool may buffer against changes in local community diversity and ecosystem function after a disturbance through the establishment of functionally...
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crwiley:10.1111/gcb.12122 2024-09-15T18:38:03+00:00 Regional zooplankton dispersal provides spatial insurance for ecosystem function Symons, Celia C. Arnott, Shelley E. 2013 http://dx.doi.org/10.1111/gcb.12122 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12122 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12122 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 19, issue 5, page 1610-1619 ISSN 1354-1013 1365-2486 journal-article 2013 crwiley https://doi.org/10.1111/gcb.12122 2024-08-09T04:24:26Z Abstract Changing environmental conditions are affecting diversity and ecosystem function globally. Theory suggests that dispersal from a regional species pool may buffer against changes in local community diversity and ecosystem function after a disturbance through the establishment of functionally redundant tolerant species. The spatial insurance provided by dispersal may decrease through time after environmental change as the local community monopolizes resources and reduces community invasibility. To test for evidence of the spatial insurance hypothesis and to determine the role dispersal timing plays in this response we conducted a field experiment using crustacean zooplankton communities in a subarctic region that is expected to be highly impacted by climate change – C hurchill, C anada. Three experiments were conducted where nutrients, salt, and dispersal were manipulated. The three experiments differed in time‐since‐disturbance that the dispersers were added. We found that coarse measures of diversity (i.e. species richness, evenness, and S hannon– W einer diversity) were generally resistant to large magnitude disturbances, and that dispersal had the most impact on diversity when dispersers were added shortly after disturbance. Ecosystem functioning (chl‐ a ) was degraded in disturbed communities, but dispersal recovered ecosystem function to undisturbed levels. This spatial insurance for ecosystem function was mediated through changes in community composition and the relative abundance of functional groups. Results suggest that regional diversity and habitat connectivity will be important in the future to maintain ecosystem function by introducing functionally redundant species to promote compensatory dynamics. Article in Journal/Newspaper Subarctic Wiley Online Library Global Change Biology 19 5 1610 1619 |
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English |
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Abstract Changing environmental conditions are affecting diversity and ecosystem function globally. Theory suggests that dispersal from a regional species pool may buffer against changes in local community diversity and ecosystem function after a disturbance through the establishment of functionally redundant tolerant species. The spatial insurance provided by dispersal may decrease through time after environmental change as the local community monopolizes resources and reduces community invasibility. To test for evidence of the spatial insurance hypothesis and to determine the role dispersal timing plays in this response we conducted a field experiment using crustacean zooplankton communities in a subarctic region that is expected to be highly impacted by climate change – C hurchill, C anada. Three experiments were conducted where nutrients, salt, and dispersal were manipulated. The three experiments differed in time‐since‐disturbance that the dispersers were added. We found that coarse measures of diversity (i.e. species richness, evenness, and S hannon– W einer diversity) were generally resistant to large magnitude disturbances, and that dispersal had the most impact on diversity when dispersers were added shortly after disturbance. Ecosystem functioning (chl‐ a ) was degraded in disturbed communities, but dispersal recovered ecosystem function to undisturbed levels. This spatial insurance for ecosystem function was mediated through changes in community composition and the relative abundance of functional groups. Results suggest that regional diversity and habitat connectivity will be important in the future to maintain ecosystem function by introducing functionally redundant species to promote compensatory dynamics. |
format |
Article in Journal/Newspaper |
author |
Symons, Celia C. Arnott, Shelley E. |
spellingShingle |
Symons, Celia C. Arnott, Shelley E. Regional zooplankton dispersal provides spatial insurance for ecosystem function |
author_facet |
Symons, Celia C. Arnott, Shelley E. |
author_sort |
Symons, Celia C. |
title |
Regional zooplankton dispersal provides spatial insurance for ecosystem function |
title_short |
Regional zooplankton dispersal provides spatial insurance for ecosystem function |
title_full |
Regional zooplankton dispersal provides spatial insurance for ecosystem function |
title_fullStr |
Regional zooplankton dispersal provides spatial insurance for ecosystem function |
title_full_unstemmed |
Regional zooplankton dispersal provides spatial insurance for ecosystem function |
title_sort |
regional zooplankton dispersal provides spatial insurance for ecosystem function |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/gcb.12122 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12122 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12122 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Global Change Biology volume 19, issue 5, page 1610-1619 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.12122 |
container_title |
Global Change Biology |
container_volume |
19 |
container_issue |
5 |
container_start_page |
1610 |
op_container_end_page |
1619 |
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1810482377665806336 |