Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness
Abstract Community stability is a fundamental factor sustaining ecosystem functioning and is affected by species richness and species evenness. The Arctic is warming more rapidly than other biomes, and cryptogam plant species (specifically lichens and bryophytes in this study) are major contributors...
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crwiley:10.1002/ecy.3842 2024-06-09T07:43:37+00:00 Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness Gu, Qian Yu, Qiang Grogan, Paul Natural Sciences and Engineering Research Council of Canada 2022 http://dx.doi.org/10.1002/ecy.3842 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.3842 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ecy.3842 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.3842 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology volume 104, issue 1 ISSN 0012-9658 1939-9170 journal-article 2022 crwiley https://doi.org/10.1002/ecy.3842 2024-05-16T14:23:58Z Abstract Community stability is a fundamental factor sustaining ecosystem functioning and is affected by species richness and species evenness. The Arctic is warming more rapidly than other biomes, and cryptogam plant species (specifically lichens and bryophytes in this study) are major contributors to tundra biodiversity and productivity. However, to our knowledge, the impacts of warming on cryptogam community stability and the underlying mechanisms have not been investigated. We conducted a 13‐year summer warming experiment in mesic birch hummock tundra vegetation near Daring Lake in the continental interior of low Arctic Canada and recorded patterns of cryptogam species abundance in several different growing seasons. Warming decreased the stability of total community abundance, had no effects on species richness, but increased species evenness and species synchrony. Structural equation model analyses indicated that higher species richness was the principal factor associated with the stronger community abundance stability in the control plots and that this effect was driven primarily by a negative correlation with species synchrony. By contrast, higher species evenness was the principal factor associated with the weakened community abundance stability in the warming plots, and this effect was driven primarily by a positive correlation with species synchrony. Our study suggests that climate warming could reduce cryptogam plant community stability in low Arctic tundra and, therefore, decrease important ecosystem services, including carbon storage and food availability to caribou in northern regions. Article in Journal/Newspaper Arctic Tundra Wiley Online Library Arctic Canada Daring Lake ENVELOPE(-111.635,-111.635,64.834,64.834) Ecology 104 1 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Community stability is a fundamental factor sustaining ecosystem functioning and is affected by species richness and species evenness. The Arctic is warming more rapidly than other biomes, and cryptogam plant species (specifically lichens and bryophytes in this study) are major contributors to tundra biodiversity and productivity. However, to our knowledge, the impacts of warming on cryptogam community stability and the underlying mechanisms have not been investigated. We conducted a 13‐year summer warming experiment in mesic birch hummock tundra vegetation near Daring Lake in the continental interior of low Arctic Canada and recorded patterns of cryptogam species abundance in several different growing seasons. Warming decreased the stability of total community abundance, had no effects on species richness, but increased species evenness and species synchrony. Structural equation model analyses indicated that higher species richness was the principal factor associated with the stronger community abundance stability in the control plots and that this effect was driven primarily by a negative correlation with species synchrony. By contrast, higher species evenness was the principal factor associated with the weakened community abundance stability in the warming plots, and this effect was driven primarily by a positive correlation with species synchrony. Our study suggests that climate warming could reduce cryptogam plant community stability in low Arctic tundra and, therefore, decrease important ecosystem services, including carbon storage and food availability to caribou in northern regions. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Gu, Qian Yu, Qiang Grogan, Paul |
spellingShingle |
Gu, Qian Yu, Qiang Grogan, Paul Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness |
author_facet |
Gu, Qian Yu, Qiang Grogan, Paul |
author_sort |
Gu, Qian |
title |
Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness |
title_short |
Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness |
title_full |
Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness |
title_fullStr |
Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness |
title_full_unstemmed |
Cryptogam plant community stability: Warming weakens influences of species richness but enhances effects of evenness |
title_sort |
cryptogam plant community stability: warming weakens influences of species richness but enhances effects of evenness |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/ecy.3842 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.3842 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ecy.3842 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.3842 |
long_lat |
ENVELOPE(-111.635,-111.635,64.834,64.834) |
geographic |
Arctic Canada Daring Lake |
geographic_facet |
Arctic Canada Daring Lake |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Ecology volume 104, issue 1 ISSN 0012-9658 1939-9170 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ecy.3842 |
container_title |
Ecology |
container_volume |
104 |
container_issue |
1 |
_version_ |
1801372487074709504 |