Data from: Arctic greening from warming promotes declines in caribou populations
The migratory tundra caribou herds in North America follow decadal population cycles, and browsing from abundant caribou could be expected to counteract the current climate-driven expansion of shrubs in the circumpolar tundra biome. We demonstrate that the sea ice cover in the Arctic Ocean has provi...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:102025 2023-07-02T03:30:57+02:00 Data from: Arctic greening from warming promotes declines in caribou populations Fauchald, Per Park, Taejin Tømmervik, Hans Myneni, Ranga Hausner, Vera Helene 2017-05-01T21:18:39.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-85-aos3 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102025 unknown doi:10.5061/dryad.d12t1/1 doi:10.1126/sciadv.1601365 http://nbn-resolving.org/urn:nbn:nl:ui:13-85-aos3 doi:10.5061/dryad.d12t1 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102025 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.d12t1/110.1126/sciadv.160136510.5061/dryad.d12t1 2023-06-13T13:27:48Z The migratory tundra caribou herds in North America follow decadal population cycles, and browsing from abundant caribou could be expected to counteract the current climate-driven expansion of shrubs in the circumpolar tundra biome. We demonstrate that the sea ice cover in the Arctic Ocean has provided a strong signal for climate-induced changes on the adjacent caribou summer ranges, outperforming other climate indices in explaining the caribou-plant dynamics. We found no evidence of a negative effect of caribou abundance on vegetation biomass. On the contrary, we found a strong bottom-up effect in which a warmer climate related to diminishing sea ice has increased the plant biomass on the summer pastures, along with a paradoxical decline in caribou populations. This result suggests that this climate-induced greening has been accompanied by a deterioration of pasture quality. The shrub expansion in Arctic North America involves plant species with strong antibrowsing defenses. Our results might therefore be an early signal of a climate-driven shift in the caribou-plant interaction from a system with low plant biomass modulated by cyclic caribou populations to a system dominated by nonedible shrubs and diminishing herds of migratory caribou. Other/Unknown Material Arctic Greening Arctic Arctic Ocean Sea ice Tundra Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic Arctic Ocean |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Fauchald, Per Park, Taejin Tømmervik, Hans Myneni, Ranga Hausner, Vera Helene Data from: Arctic greening from warming promotes declines in caribou populations |
topic_facet |
Life sciences medicine and health care |
description |
The migratory tundra caribou herds in North America follow decadal population cycles, and browsing from abundant caribou could be expected to counteract the current climate-driven expansion of shrubs in the circumpolar tundra biome. We demonstrate that the sea ice cover in the Arctic Ocean has provided a strong signal for climate-induced changes on the adjacent caribou summer ranges, outperforming other climate indices in explaining the caribou-plant dynamics. We found no evidence of a negative effect of caribou abundance on vegetation biomass. On the contrary, we found a strong bottom-up effect in which a warmer climate related to diminishing sea ice has increased the plant biomass on the summer pastures, along with a paradoxical decline in caribou populations. This result suggests that this climate-induced greening has been accompanied by a deterioration of pasture quality. The shrub expansion in Arctic North America involves plant species with strong antibrowsing defenses. Our results might therefore be an early signal of a climate-driven shift in the caribou-plant interaction from a system with low plant biomass modulated by cyclic caribou populations to a system dominated by nonedible shrubs and diminishing herds of migratory caribou. |
author |
Fauchald, Per Park, Taejin Tømmervik, Hans Myneni, Ranga Hausner, Vera Helene |
author_facet |
Fauchald, Per Park, Taejin Tømmervik, Hans Myneni, Ranga Hausner, Vera Helene |
author_sort |
Fauchald, Per |
title |
Data from: Arctic greening from warming promotes declines in caribou populations |
title_short |
Data from: Arctic greening from warming promotes declines in caribou populations |
title_full |
Data from: Arctic greening from warming promotes declines in caribou populations |
title_fullStr |
Data from: Arctic greening from warming promotes declines in caribou populations |
title_full_unstemmed |
Data from: Arctic greening from warming promotes declines in caribou populations |
title_sort |
data from: arctic greening from warming promotes declines in caribou populations |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-85-aos3 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102025 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Greening Arctic Arctic Ocean Sea ice Tundra |
genre_facet |
Arctic Greening Arctic Arctic Ocean Sea ice Tundra |
op_relation |
doi:10.5061/dryad.d12t1/1 doi:10.1126/sciadv.1601365 http://nbn-resolving.org/urn:nbn:nl:ui:13-85-aos3 doi:10.5061/dryad.d12t1 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102025 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.d12t1/110.1126/sciadv.160136510.5061/dryad.d12t1 |
_version_ |
1770275213834977280 |