Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit
Alpine environments are currently relatively free from non-native plant species, although their presence and abundance have recently been on the rise. It is however still unclear whether the observed low invasion levels in these areas are due to an inherent resistance of the alpine zone to invasions...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:98872 2023-07-02T03:33:49+02:00 Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit Lembrechts, Jonas J. Lenoir, Jonathan Nuñez, Martin A. Pauchard, Aníbal Geron, Charly Bussé, Gilles Milbau, Ann Nijs, Ivan 2017-09-06T18:28:26.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-pe-uix4 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:98872 unknown doi:10.5061/dryad.dv2q6.2/1.2 doi:10.1111/ecog.03263 http://nbn-resolving.org/urn:nbn:nl:ui:13-pe-uix4 doi:10.5061/dryad.dv2q6.2 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:98872 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.dv2q6.2/1.210.1111/ecog.0326310.5061/dryad.dv2q6.2 2023-06-13T12:45:29Z Alpine environments are currently relatively free from non-native plant species, although their presence and abundance have recently been on the rise. It is however still unclear whether the observed low invasion levels in these areas are due to an inherent resistance of the alpine zone to invasions or whether an exponential increase in invasion is just a matter of time. Using a seed-addition experiment on north- and south-facing slopes (cf. microclimatic gradient) on two mountains in subarctic Sweden, we tested the establishment of six non-native species at an elevation above their current distribution limits and under experimentally enhanced anthropogenic pressures (disturbance, added nutrients and increased propagule pressure). We found a large microclimatic variability in cumulative growing degree days (GDD) (range = 500.77 °C, SD = 120.70 °C) due to both physiographic (e.g. aspect) and biophysical (e.g. vegetation cover) features, the latter being altered by the experimental disturbance. Non-native species establishment and biomass production were positively correlated with GDD along the studied microclimatic gradient. However, even though establishment on the north-facing slopes caught up with that on the south-facing slopes throughout the growing season, biomass production was limited on the north-facing slopes due to a shorter growing season. On top of this microclimatic effect, all experimentally imposed anthropogenic factors enhanced non-native species success. The observed microclimatic effect indicates a potential for non-native species to use warm microsites as stepping stones for their establishment towards the cold end of the gradient. Combined with anthropogenic pressures this result suggests an increasing risk for plant invasion in cold ecosystems, as such stepping stones in alpine ecosystems are likely to be more common in a future that will combine a warming climate with persistent anthropogenic pressures. Other/Unknown Material Subarctic Stepping Stones Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Stepping Stones ENVELOPE(-63.992,-63.992,-64.786,-64.786) |
institution |
Open Polar |
collection |
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 Lembrechts, Jonas J. Lenoir, Jonathan Nuñez, Martin A. Pauchard, Aníbal Geron, Charly Bussé, Gilles Milbau, Ann Nijs, Ivan Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
topic_facet |
Life sciences medicine and health care |
description |
Alpine environments are currently relatively free from non-native plant species, although their presence and abundance have recently been on the rise. It is however still unclear whether the observed low invasion levels in these areas are due to an inherent resistance of the alpine zone to invasions or whether an exponential increase in invasion is just a matter of time. Using a seed-addition experiment on north- and south-facing slopes (cf. microclimatic gradient) on two mountains in subarctic Sweden, we tested the establishment of six non-native species at an elevation above their current distribution limits and under experimentally enhanced anthropogenic pressures (disturbance, added nutrients and increased propagule pressure). We found a large microclimatic variability in cumulative growing degree days (GDD) (range = 500.77 °C, SD = 120.70 °C) due to both physiographic (e.g. aspect) and biophysical (e.g. vegetation cover) features, the latter being altered by the experimental disturbance. Non-native species establishment and biomass production were positively correlated with GDD along the studied microclimatic gradient. However, even though establishment on the north-facing slopes caught up with that on the south-facing slopes throughout the growing season, biomass production was limited on the north-facing slopes due to a shorter growing season. On top of this microclimatic effect, all experimentally imposed anthropogenic factors enhanced non-native species success. The observed microclimatic effect indicates a potential for non-native species to use warm microsites as stepping stones for their establishment towards the cold end of the gradient. Combined with anthropogenic pressures this result suggests an increasing risk for plant invasion in cold ecosystems, as such stepping stones in alpine ecosystems are likely to be more common in a future that will combine a warming climate with persistent anthropogenic pressures. |
author |
Lembrechts, Jonas J. Lenoir, Jonathan Nuñez, Martin A. Pauchard, Aníbal Geron, Charly Bussé, Gilles Milbau, Ann Nijs, Ivan |
author_facet |
Lembrechts, Jonas J. Lenoir, Jonathan Nuñez, Martin A. Pauchard, Aníbal Geron, Charly Bussé, Gilles Milbau, Ann Nijs, Ivan |
author_sort |
Lembrechts, Jonas J. |
title |
Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
title_short |
Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
title_full |
Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
title_fullStr |
Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
title_full_unstemmed |
Data from: Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
title_sort |
data from: microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-pe-uix4 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:98872 |
long_lat |
ENVELOPE(-63.992,-63.992,-64.786,-64.786) |
geographic |
Stepping Stones |
geographic_facet |
Stepping Stones |
genre |
Subarctic Stepping Stones |
genre_facet |
Subarctic Stepping Stones |
op_relation |
doi:10.5061/dryad.dv2q6.2/1.2 doi:10.1111/ecog.03263 http://nbn-resolving.org/urn:nbn:nl:ui:13-pe-uix4 doi:10.5061/dryad.dv2q6.2 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:98872 |
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.dv2q6.2/1.210.1111/ecog.0326310.5061/dryad.dv2q6.2 |
_version_ |
1770273911217324032 |