Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities

Community assembly theory states that species assemble non-randomly as a result of dispersal limitation, biotic interactions, and environmental filtering. Strong environmental filtering likely leads to local assemblages that are similar in their functional trait composition (high trait convergence)...

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Autores principales:	Lauren Sutton, Franz J. Mueter, Bodil A. Bluhm, Katrin Iken
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	community assembly environmental filtering functional traits trait convergence Arctic Science Q General. Including nature conservation, geographical distribution QH1-199.5
Acceso en línea:	https://doaj.org/article/d23d820901fe4616b07119bdc74d9722
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id	oai:doaj.org-article:d23d820901fe4616b07119bdc74d9722
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spelling	oai:doaj.org-article:d23d820901fe4616b07119bdc74d97222021-11-10T05:51:29ZEnvironmental Filtering Influences Functional Community Assembly of Epibenthic Communities2296-774510.3389/fmars.2021.736917https://doaj.org/article/d23d820901fe4616b07119bdc74d97222021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmars.2021.736917/fullhttps://doaj.org/toc/2296-7745Community assembly theory states that species assemble non-randomly as a result of dispersal limitation, biotic interactions, and environmental filtering. Strong environmental filtering likely leads to local assemblages that are similar in their functional trait composition (high trait convergence) while functional trait composition will be less similar (high trait divergence) under weaker environmental filters. We used two Arctic shelves as case studies to examine the relationship between functional community assembly and environmental filtering using the geographically close but functionally and environmentally dissimilar epibenthic communities on the Chukchi and Beaufort Sea shelves. Environmental drivers were compared to functional trait composition and to trait convergence within each shelf. Functional composition in the Chukchi Sea was more strongly correlated with environmental gradients compared to the Beaufort Sea, as shown by a combination of RLQ and fourth corner analyses and community-weighted mean redundancy analyses. In the Chukchi Sea, epibenthic functional composition, particularly body size, reproductive strategy, and several behavioral traits (i.e., feeding habit, living habit, movement), was most strongly related to gradients in percent mud and temperature while body size and larval development were most strongly related to a depth gradient in the Beaufort Sea. The stronger environmental filter in the Chukchi Sea also supported the hypothesized relationship with higher trait convergence, although this relationship was only evident at one end of the observed environmental gradient. Strong environmental filtering generally provides a challenge for biota and can be a barrier for invading species, a growing concern for the Chukchi Sea shelf communities under warming conditions. Weaker environmental filtering, such as on the Beaufort Sea shelf, generally leads to communities that are more structured by biotic interactions, and possibly representing partitioning of resources among species from intermediate disturbance levels. We provide evidence that environmental filtering can structure functional community composition, providing a baseline of how community function could be affected by stressors such as changes in environmental conditions or increased anthropogenic disturbance.Lauren SuttonFranz J. MueterBodil A. BluhmKatrin IkenFrontiers Media S.A.articlecommunity assemblyenvironmental filteringfunctional traitstrait convergenceArcticScienceQGeneral. Including nature conservation, geographical distributionQH1-199.5ENFrontiers in Marine Science, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	community assembly environmental filtering functional traits trait convergence Arctic Science Q General. Including nature conservation, geographical distribution QH1-199.5
spellingShingle	community assembly environmental filtering functional traits trait convergence Arctic Science Q General. Including nature conservation, geographical distribution QH1-199.5 Lauren Sutton Franz J. Mueter Bodil A. Bluhm Katrin Iken Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities
description	Community assembly theory states that species assemble non-randomly as a result of dispersal limitation, biotic interactions, and environmental filtering. Strong environmental filtering likely leads to local assemblages that are similar in their functional trait composition (high trait convergence) while functional trait composition will be less similar (high trait divergence) under weaker environmental filters. We used two Arctic shelves as case studies to examine the relationship between functional community assembly and environmental filtering using the geographically close but functionally and environmentally dissimilar epibenthic communities on the Chukchi and Beaufort Sea shelves. Environmental drivers were compared to functional trait composition and to trait convergence within each shelf. Functional composition in the Chukchi Sea was more strongly correlated with environmental gradients compared to the Beaufort Sea, as shown by a combination of RLQ and fourth corner analyses and community-weighted mean redundancy analyses. In the Chukchi Sea, epibenthic functional composition, particularly body size, reproductive strategy, and several behavioral traits (i.e., feeding habit, living habit, movement), was most strongly related to gradients in percent mud and temperature while body size and larval development were most strongly related to a depth gradient in the Beaufort Sea. The stronger environmental filter in the Chukchi Sea also supported the hypothesized relationship with higher trait convergence, although this relationship was only evident at one end of the observed environmental gradient. Strong environmental filtering generally provides a challenge for biota and can be a barrier for invading species, a growing concern for the Chukchi Sea shelf communities under warming conditions. Weaker environmental filtering, such as on the Beaufort Sea shelf, generally leads to communities that are more structured by biotic interactions, and possibly representing partitioning of resources among species from intermediate disturbance levels. We provide evidence that environmental filtering can structure functional community composition, providing a baseline of how community function could be affected by stressors such as changes in environmental conditions or increased anthropogenic disturbance.
format	article
author	Lauren Sutton Franz J. Mueter Bodil A. Bluhm Katrin Iken
author_facet	Lauren Sutton Franz J. Mueter Bodil A. Bluhm Katrin Iken
author_sort	Lauren Sutton
title	Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities
title_short	Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities
title_full	Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities
title_fullStr	Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities
title_full_unstemmed	Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities
title_sort	environmental filtering influences functional community assembly of epibenthic communities
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/d23d820901fe4616b07119bdc74d9722
work_keys_str_mv	AT laurensutton environmentalfilteringinfluencesfunctionalcommunityassemblyofepibenthiccommunities AT franzjmueter environmentalfilteringinfluencesfunctionalcommunityassemblyofepibenthiccommunities AT bodilabluhm environmentalfilteringinfluencesfunctionalcommunityassemblyofepibenthiccommunities AT katriniken environmentalfilteringinfluencesfunctionalcommunityassemblyofepibenthiccommunities
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Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities

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