Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018.
Herbivory can have strong impacts on greenhouse gas fluxes in high-latitude ecosystems. For example, in the Yukon-Kuskokwim (Y-K) Delta in western Alaska, migratory goose grazing affects the magnitude of soil carbon dioxide (CO2) and methane (CH4) fluxes. However, the underlying drivers of this rela...
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2021
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dataone:doi:10.18739/A21J9786S 2024-06-03T18:46:58+00:00 Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. Bonnie Waring Yukon Kuskokwim Delta, Alaska, USA ENVELOPE(-165.63,-165.63,61.24,61.24) BEGINDATE: 2018-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z 2021-01-01T00:00:00Z https://doi.org/10.18739/A21J9786S unknown Arctic Data Center carbon dioxide methane grazing geese soil wetland Yukon Kuskokwim Dataset 2021 dataone:urn:node:ARCTIC https://doi.org/10.18739/A21J9786S 2024-06-03T18:17:27Z Herbivory can have strong impacts on greenhouse gas fluxes in high-latitude ecosystems. For example, in the Yukon-Kuskokwim (Y-K) Delta in western Alaska, migratory goose grazing affects the magnitude of soil carbon dioxide (CO2) and methane (CH4) fluxes. However, the underlying drivers of this relationship are unclear, as few studies systematically tease apart the processes by which herbivores influences soil biogeochemistry. To examine these mechanisms in detail, we conducted a laboratory incubation experiment to quantify changes in greenhouse gas fluxes in response to three parameters altered by herbivores in situ: temperature, soil moisture content, and nutrient inputs. These treatments were applied to soils collected in grazing lawns and nearby ungrazed habitat, allowing us to assess how variation in microbial community structure influenced observed responses. We found pronounced differences in both fungal and prokaryotic community composition between grazed and ungrazed areas. In the laboratory incubation experiment, CO2 and CH4 fluxes increased with temperature, soil moisture, and goose fecal addition, suggesting that grazing-related changes in the soil abiotic environment may enhance soil carbon (C) losses. Yet these abiotic drivers were insufficient to explain variation in fluxes between soils with and without prior grazing. Differences in trace gas fluxes between grazed and ungrazed areas may result both from herbivore-induced shifts in abiotic parameters, and grazing-related alterations in microbial community structure. Our findings suggest that relationships among herbivores and soil microbial communities could mediate carbon-climate feedbacks in rapidly changing high-latitude ecosystems. Dataset Kuskokwim Alaska Yukon Arctic Data Center (via DataONE) Yukon ENVELOPE(-165.63,-165.63,61.24,61.24) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
carbon dioxide methane grazing geese soil wetland Yukon Kuskokwim |
spellingShingle |
carbon dioxide methane grazing geese soil wetland Yukon Kuskokwim Bonnie Waring Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. |
topic_facet |
carbon dioxide methane grazing geese soil wetland Yukon Kuskokwim |
description |
Herbivory can have strong impacts on greenhouse gas fluxes in high-latitude ecosystems. For example, in the Yukon-Kuskokwim (Y-K) Delta in western Alaska, migratory goose grazing affects the magnitude of soil carbon dioxide (CO2) and methane (CH4) fluxes. However, the underlying drivers of this relationship are unclear, as few studies systematically tease apart the processes by which herbivores influences soil biogeochemistry. To examine these mechanisms in detail, we conducted a laboratory incubation experiment to quantify changes in greenhouse gas fluxes in response to three parameters altered by herbivores in situ: temperature, soil moisture content, and nutrient inputs. These treatments were applied to soils collected in grazing lawns and nearby ungrazed habitat, allowing us to assess how variation in microbial community structure influenced observed responses. We found pronounced differences in both fungal and prokaryotic community composition between grazed and ungrazed areas. In the laboratory incubation experiment, CO2 and CH4 fluxes increased with temperature, soil moisture, and goose fecal addition, suggesting that grazing-related changes in the soil abiotic environment may enhance soil carbon (C) losses. Yet these abiotic drivers were insufficient to explain variation in fluxes between soils with and without prior grazing. Differences in trace gas fluxes between grazed and ungrazed areas may result both from herbivore-induced shifts in abiotic parameters, and grazing-related alterations in microbial community structure. Our findings suggest that relationships among herbivores and soil microbial communities could mediate carbon-climate feedbacks in rapidly changing high-latitude ecosystems. |
format |
Dataset |
author |
Bonnie Waring |
author_facet |
Bonnie Waring |
author_sort |
Bonnie Waring |
title |
Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. |
title_short |
Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. |
title_full |
Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. |
title_fullStr |
Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. |
title_full_unstemmed |
Herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in Yukon Kuskokwim Delta, Alaska, 2018. |
title_sort |
herbivory changes soil microbial communities and greenhouse gas fluxes in a high-latitude wetland in yukon kuskokwim delta, alaska, 2018. |
publisher |
Arctic Data Center |
publishDate |
2021 |
url |
https://doi.org/10.18739/A21J9786S |
op_coverage |
Yukon Kuskokwim Delta, Alaska, USA ENVELOPE(-165.63,-165.63,61.24,61.24) BEGINDATE: 2018-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z |
long_lat |
ENVELOPE(-165.63,-165.63,61.24,61.24) |
geographic |
Yukon |
geographic_facet |
Yukon |
genre |
Kuskokwim Alaska Yukon |
genre_facet |
Kuskokwim Alaska Yukon |
op_doi |
https://doi.org/10.18739/A21J9786S |
_version_ |
1800873819853815808 |