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...

Full description

Bibliographic Details
Main Authors: Lembrechts, Jonas J., Lenoir, Jonathan, Nuñez, Martin A., Pauchard, Aníbal, Geron, Charly, Bussé, Gilles, Milbau, Ann, Nijs, Ivan
Format: Dataset
Language:English
Published: Dryad 2017
Subjects:
Alien plant invaders
species distributions
mountain topography
Subarctic
invasibility
Stepping Stones
Online Access:https://dx.doi.org/10.5061/dryad.dv2q6
https://datadryad.org/stash/dataset/doi:10.5061/dryad.dv2q6
Description
Summary: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 ... : Lembrechts2017_Ecography_DataDatasets (Plot GDD, species establishment and species biomass) associated with the experiment described in Lembrechts et al. (2017) Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit. Ecography 40: 001–009. doi: 10.1111/ecog.03263Lembrechts2017_Ecography_DryadData_v2.zipLembrechts2017_Ecography_README.docx ...

Similar Items