Replication data for: Rangifer management controls a climate-sensitive tundra state transition
Data and script for the results presented in Bråthen, K. A., V. T. Ravolainen, A. Stien, T. Tveraa and R. A. Ims Rangifer management controls a climate-sensitive tundra state transition. Ecological Application in press Abstract Rangifer (caribou/reindeer) management has been suggested to mitigate th...
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ftdataverseno:doi:10.18710/SAOAG5 2024-10-13T14:05:48+00:00 Replication data for: Rangifer management controls a climate-sensitive tundra state transition Bråthen, Kari Anne Ravolainen, Virve T. Stien, Audun Tveraa, Torkild Ims, Rolf Anker Bråthen, Kari Anne 2017-08-25 https://doi.org/10.18710/SAOAG5 unknown DataverseNO https://doi.org/10.18710/SAOAG5 Earth and Environmental Sciences plant-herbivore interactions browsing summer temperature shrub growth climate change Salix browse trap shrubline life history stages 2017 ftdataverseno https://doi.org/10.18710/SAOAG5 2024-09-24T14:11:59Z Data and script for the results presented in Bråthen, K. A., V. T. Ravolainen, A. Stien, T. Tveraa and R. A. Ims Rangifer management controls a climate-sensitive tundra state transition. Ecological Application in press Abstract Rangifer (caribou/reindeer) management has been suggested to mitigate the temperature-driven transition of arctic tundra into a shrubland state, yet how is uncertain. Here we study this much focused ecosystem state transition in riparian areas, where palatable willows (Salix) are dominant tall shrubs and highly responsive to climate change. For the state transition to take place, small life stages must become tall and abundant. Therefore we predicted that the performance of small life stages (potential recruits) of the tall shrubs were instrumental to the focal transition, where Rangifer managed at high population density would keep the small-stage shrubs in a “browse trap” independent of summer temperature. We used a large-scale quasi-experimental study design that included real management units that spanned a wide range of Rangifer population densities and summer temperatures in order to assess the relative importance of these two driving variables. Ground-surveys provided data on density and height of the small shrub life stages, while the distributional limit (shrubline) of established shrublands (the tall shrub life stage) was derived from aerial photographs. Where Rangifer densities were above a threshold of approximately 5 animals km-2 we found, in accordance with the expectation of a “browse trap”, that the small life stages of shrubs in grasslands were at low height and low abundance. At Rangifer densities below this threshold the small life stages of shrubs were taller and more abundant indicating Rangifer were no longer in control of the grassland state. For the established shrubland state, we found that the shrubline was at a 100 m lower elevation in the management units where Rangifer have been browsing in summer as opposed to the migratory ranges with no browsing in ... Other/Unknown Material Arctic Climate change Tundra DataverseNO Arctic Stien ENVELOPE(12.536,12.536,65.440,65.440) |
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Open Polar |
collection |
DataverseNO |
op_collection_id |
ftdataverseno |
language |
unknown |
topic |
Earth and Environmental Sciences plant-herbivore interactions browsing summer temperature shrub growth climate change Salix browse trap shrubline life history stages |
spellingShingle |
Earth and Environmental Sciences plant-herbivore interactions browsing summer temperature shrub growth climate change Salix browse trap shrubline life history stages Bråthen, Kari Anne Ravolainen, Virve T. Stien, Audun Tveraa, Torkild Ims, Rolf Anker Replication data for: Rangifer management controls a climate-sensitive tundra state transition |
topic_facet |
Earth and Environmental Sciences plant-herbivore interactions browsing summer temperature shrub growth climate change Salix browse trap shrubline life history stages |
description |
Data and script for the results presented in Bråthen, K. A., V. T. Ravolainen, A. Stien, T. Tveraa and R. A. Ims Rangifer management controls a climate-sensitive tundra state transition. Ecological Application in press Abstract Rangifer (caribou/reindeer) management has been suggested to mitigate the temperature-driven transition of arctic tundra into a shrubland state, yet how is uncertain. Here we study this much focused ecosystem state transition in riparian areas, where palatable willows (Salix) are dominant tall shrubs and highly responsive to climate change. For the state transition to take place, small life stages must become tall and abundant. Therefore we predicted that the performance of small life stages (potential recruits) of the tall shrubs were instrumental to the focal transition, where Rangifer managed at high population density would keep the small-stage shrubs in a “browse trap” independent of summer temperature. We used a large-scale quasi-experimental study design that included real management units that spanned a wide range of Rangifer population densities and summer temperatures in order to assess the relative importance of these two driving variables. Ground-surveys provided data on density and height of the small shrub life stages, while the distributional limit (shrubline) of established shrublands (the tall shrub life stage) was derived from aerial photographs. Where Rangifer densities were above a threshold of approximately 5 animals km-2 we found, in accordance with the expectation of a “browse trap”, that the small life stages of shrubs in grasslands were at low height and low abundance. At Rangifer densities below this threshold the small life stages of shrubs were taller and more abundant indicating Rangifer were no longer in control of the grassland state. For the established shrubland state, we found that the shrubline was at a 100 m lower elevation in the management units where Rangifer have been browsing in summer as opposed to the migratory ranges with no browsing in ... |
author2 |
Bråthen, Kari Anne |
author |
Bråthen, Kari Anne Ravolainen, Virve T. Stien, Audun Tveraa, Torkild Ims, Rolf Anker |
author_facet |
Bråthen, Kari Anne Ravolainen, Virve T. Stien, Audun Tveraa, Torkild Ims, Rolf Anker |
author_sort |
Bråthen, Kari Anne |
title |
Replication data for: Rangifer management controls a climate-sensitive tundra state transition |
title_short |
Replication data for: Rangifer management controls a climate-sensitive tundra state transition |
title_full |
Replication data for: Rangifer management controls a climate-sensitive tundra state transition |
title_fullStr |
Replication data for: Rangifer management controls a climate-sensitive tundra state transition |
title_full_unstemmed |
Replication data for: Rangifer management controls a climate-sensitive tundra state transition |
title_sort |
replication data for: rangifer management controls a climate-sensitive tundra state transition |
publisher |
DataverseNO |
publishDate |
2017 |
url |
https://doi.org/10.18710/SAOAG5 |
long_lat |
ENVELOPE(12.536,12.536,65.440,65.440) |
geographic |
Arctic Stien |
geographic_facet |
Arctic Stien |
genre |
Arctic Climate change Tundra |
genre_facet |
Arctic Climate change Tundra |
op_relation |
https://doi.org/10.18710/SAOAG5 |
op_doi |
https://doi.org/10.18710/SAOAG5 |
_version_ |
1812811846928826368 |