Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra
Climate change is occurring across the world, with effects varying by ecosystem and region but already occurring quickly in high-latitude and high-altitude regions. Biotic interactions are important in determining ecosystem response to such changes, but few studies have been long-term in nature, esp...
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Dryad
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Online Access: | https://doi.org/10.5061/dryad.2m1k2 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::13946f1781fa650ac1dada91486fc6f0 2023-05-15T14:58:06+02:00 Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra Little, Chelsea J. Cutting, Helen B. U. Alatalo, Juha Cooper, Elisabeth 2018-01-09 https://doi.org/10.5061/dryad.2m1k2 en eng Dryad http://dx.doi.org/10.5061/dryad.2m1k2 https://dx.doi.org/10.5061/dryad.2m1k2 lic_creative-commons 10.5061/dryad.2m1k2 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96881 oai:easy.dans.knaw.nl:easy-dataset:96881 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Bistorta vivipara Alopecurus magellanicus community structure Salix polaris Herbivory Dryas octopetala tundra vegetation warming experiment Holocene Life sciences medicine and health care biodiversity climate change Svalbard Norway envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2018 fttriple https://doi.org/10.5061/dryad.2m1k2 2023-01-22T16:51:37Z Climate change is occurring across the world, with effects varying by ecosystem and region but already occurring quickly in high-latitude and high-altitude regions. Biotic interactions are important in determining ecosystem response to such changes, but few studies have been long-term in nature, especially in the High Arctic. Mesic tundra plots on Svalbard, Norway, were subjected to grazing at two different intensities by captive Barnacle geese from 2003–2005, in a factorial design with warming by Open Top Chambers. Warming manipulations were continued through 2014, when we measured vegetation structure and composition as well as growth and reproduction of three dominant species in the mesic meadow. Significantly more dead vascular plant material was found in warmed compared to ambient plots, regardless of grazing history, but in contrast to many short-term experiments no difference in the amount of living material was found. This has strong implications for nutrient and carbon cycling and could feed back into community productivity. Dominant species showed increased flowering in warmed plots, especially in those plots where grazing had been applied. However, this added sexual reproduction did not translate to substantial shifts in vegetative cover. Forbs and rushes increased slightly in warmed plots regardless of grazing, while the dominant shrub, Salix polaris, generally declined with effects dependent on grazing, and the evergreen shrub Dryas octopetala declined with previous intensive grazing. There were no treatment effects on community diversity or evenness. Thus despite no changes in total live abundance, a typical short-term response to environmental conditions, we found pronounced changes in dead biomass indicating that tundra ecosystem processes respond to medium- to long-term changes in conditions caused by 12 seasons of summer warming. We suggest that while high arctic tundra plant communities are fairly resistant to current levels of climate warming, underlying ecosystem processes are beginning to ... Dataset Arctic Climate change Dryas octopetala Salix polaris Svalbard Tundra Unknown Arctic Svalbard Norway |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Bistorta vivipara Alopecurus magellanicus community structure Salix polaris Herbivory Dryas octopetala tundra vegetation warming experiment Holocene Life sciences medicine and health care biodiversity climate change Svalbard Norway envir geo |
spellingShingle |
Bistorta vivipara Alopecurus magellanicus community structure Salix polaris Herbivory Dryas octopetala tundra vegetation warming experiment Holocene Life sciences medicine and health care biodiversity climate change Svalbard Norway envir geo Little, Chelsea J. Cutting, Helen B. U. Alatalo, Juha Cooper, Elisabeth Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra |
topic_facet |
Bistorta vivipara Alopecurus magellanicus community structure Salix polaris Herbivory Dryas octopetala tundra vegetation warming experiment Holocene Life sciences medicine and health care biodiversity climate change Svalbard Norway envir geo |
description |
Climate change is occurring across the world, with effects varying by ecosystem and region but already occurring quickly in high-latitude and high-altitude regions. Biotic interactions are important in determining ecosystem response to such changes, but few studies have been long-term in nature, especially in the High Arctic. Mesic tundra plots on Svalbard, Norway, were subjected to grazing at two different intensities by captive Barnacle geese from 2003–2005, in a factorial design with warming by Open Top Chambers. Warming manipulations were continued through 2014, when we measured vegetation structure and composition as well as growth and reproduction of three dominant species in the mesic meadow. Significantly more dead vascular plant material was found in warmed compared to ambient plots, regardless of grazing history, but in contrast to many short-term experiments no difference in the amount of living material was found. This has strong implications for nutrient and carbon cycling and could feed back into community productivity. Dominant species showed increased flowering in warmed plots, especially in those plots where grazing had been applied. However, this added sexual reproduction did not translate to substantial shifts in vegetative cover. Forbs and rushes increased slightly in warmed plots regardless of grazing, while the dominant shrub, Salix polaris, generally declined with effects dependent on grazing, and the evergreen shrub Dryas octopetala declined with previous intensive grazing. There were no treatment effects on community diversity or evenness. Thus despite no changes in total live abundance, a typical short-term response to environmental conditions, we found pronounced changes in dead biomass indicating that tundra ecosystem processes respond to medium- to long-term changes in conditions caused by 12 seasons of summer warming. We suggest that while high arctic tundra plant communities are fairly resistant to current levels of climate warming, underlying ecosystem processes are beginning to ... |
format |
Dataset |
author |
Little, Chelsea J. Cutting, Helen B. U. Alatalo, Juha Cooper, Elisabeth |
author_facet |
Little, Chelsea J. Cutting, Helen B. U. Alatalo, Juha Cooper, Elisabeth |
author_sort |
Little, Chelsea J. |
title |
Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra |
title_short |
Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra |
title_full |
Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra |
title_fullStr |
Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra |
title_full_unstemmed |
Data from: Short-term herbivory has long-term consequences in warmed and ambient high Arctic tundra |
title_sort |
data from: short-term herbivory has long-term consequences in warmed and ambient high arctic tundra |
publisher |
Dryad |
publishDate |
2018 |
url |
https://doi.org/10.5061/dryad.2m1k2 |
geographic |
Arctic Svalbard Norway |
geographic_facet |
Arctic Svalbard Norway |
genre |
Arctic Climate change Dryas octopetala Salix polaris Svalbard Tundra |
genre_facet |
Arctic Climate change Dryas octopetala Salix polaris Svalbard Tundra |
op_source |
10.5061/dryad.2m1k2 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96881 oai:easy.dans.knaw.nl:easy-dataset:96881 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.2m1k2 https://dx.doi.org/10.5061/dryad.2m1k2 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.2m1k2 |
_version_ |
1766330192612032512 |