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Community stability under different correlation structures of species’ environmental responses

Lasse Ruokolainen, Esa Ranta, Veijo Kaitala, Mike Fowler Orcid Logo

Journal of Theoretical Biology, Volume: 261, Issue: 3

Swansea University Author: Mike Fowler Orcid Logo

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DOI (Published version): 10.1016/j.jtbi.2009.08.010

Abstract

The outcome of species interactions in a variable environment is expected to depend on how similarly different species react to variation in environmental conditions. We study community stability (evenness and species diversity) in competitive communities that are either closed or subjected to rando...

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Published in: Journal of Theoretical Biology
ISSN: 0022-5193
Published: 2009
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URI: https://cronfa.swan.ac.uk/Record/cronfa14878
first_indexed 2013-07-23T12:13:03Z
last_indexed 2018-02-09T04:46:32Z
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spelling 2013-06-13T09:45:05.6234473 v2 14878 2013-05-23 Community stability under different correlation structures of species’ environmental responses a3a29027498d4b43a3f082a0a5ba16b4 0000-0003-1544-0407 Mike Fowler Mike Fowler true false 2013-05-23 BGPS The outcome of species interactions in a variable environment is expected to depend on how similarly different species react to variation in environmental conditions. We study community stability (evenness and species diversity) in competitive communities that are either closed or subjected to random migration, under different regimes of environmental forcing. Community members respond to environmental variation: (i) independently (IR), (ii) in a positively correlated way (CR), or (iii) hierarchically, according to niche differences (HR). Increasing the amplitude of environmental variation and environmental reddening both reduce species evenness in closed communities through a reduction in species richness and increased skew in species abundances, under all three environmental response scenarios, although autocorrelation only has a minor effect with HR. Open communities show important qualitative differences, according to changes in the correlation structure of species’ environmental responses. There is an intermediate minimum in evenness for HR communities with increasing environmental amplitude, explained by the interaction of changes in species richness and changes in the variance of within-species environmental responses across the community. Changes in autocorrelation also lead to qualitative differences between IR, CR and HR communities. Our results highlight the importance of considering mechanistically derived, hierarchical environmental correlations between species when addressing the influence of environmental variation on ecological communities, not only uniform environmental correlation across all species within a community. Journal Article Journal of Theoretical Biology 261 3 387 0022-5193 31 12 2009 2009-12-31 10.1016/j.jtbi.2009.08.010 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2013-06-13T09:45:05.6234473 2013-05-23T12:29:03.5303111 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Lasse Ruokolainen 1 Esa Ranta 2 Veijo Kaitala 3 Mike Fowler 0000-0003-1544-0407 4
title Community stability under different correlation structures of species’ environmental responses
spellingShingle Community stability under different correlation structures of species’ environmental responses
Mike Fowler
title_short Community stability under different correlation structures of species’ environmental responses
title_full Community stability under different correlation structures of species’ environmental responses
title_fullStr Community stability under different correlation structures of species’ environmental responses
title_full_unstemmed Community stability under different correlation structures of species’ environmental responses
title_sort Community stability under different correlation structures of species’ environmental responses
author_id_str_mv a3a29027498d4b43a3f082a0a5ba16b4
author_id_fullname_str_mv a3a29027498d4b43a3f082a0a5ba16b4_***_Mike Fowler
author Mike Fowler
author2 Lasse Ruokolainen
Esa Ranta
Veijo Kaitala
Mike Fowler
format Journal article
container_title Journal of Theoretical Biology
container_volume 261
container_issue 3
publishDate 2009
institution Swansea University
issn 0022-5193
doi_str_mv 10.1016/j.jtbi.2009.08.010
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 0
active_str 0
description The outcome of species interactions in a variable environment is expected to depend on how similarly different species react to variation in environmental conditions. We study community stability (evenness and species diversity) in competitive communities that are either closed or subjected to random migration, under different regimes of environmental forcing. Community members respond to environmental variation: (i) independently (IR), (ii) in a positively correlated way (CR), or (iii) hierarchically, according to niche differences (HR). Increasing the amplitude of environmental variation and environmental reddening both reduce species evenness in closed communities through a reduction in species richness and increased skew in species abundances, under all three environmental response scenarios, although autocorrelation only has a minor effect with HR. Open communities show important qualitative differences, according to changes in the correlation structure of species’ environmental responses. There is an intermediate minimum in evenness for HR communities with increasing environmental amplitude, explained by the interaction of changes in species richness and changes in the variance of within-species environmental responses across the community. Changes in autocorrelation also lead to qualitative differences between IR, CR and HR communities. Our results highlight the importance of considering mechanistically derived, hierarchical environmental correlations between species when addressing the influence of environmental variation on ecological communities, not only uniform environmental correlation across all species within a community.
published_date 2009-12-31T03:27:47Z
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score 11.048756

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