Dryad
Published October 4, 2018 | Version v1
Dataset Open

Data from: Severity of impacts of an introduced species corresponds with regional eco-evolutionary experience

Creators

  • 1. University of Montana
  • 2. University Austral de Chile
  • 3. University of Chile
  • 4. National University of Comahue
  • 5. James Hutton Institute
  • 6. Montana State University
  • 7. Swedish University of Agricultural Sciences
  • 8. Landcare Research
  • 9. Forest Research
  • 10. Natural Resources Institute Finland
  • 11. University of Alberta
  • 12. University of Arizona

Description

Invasive plant impacts vary widely across introduced ranges. We tested the hypothesis that differences in the eco-evolutionary experience of native communities with the invader correspond with the impacts of invasive species on native vegetation, with impacts increasing with ecological novelty. We compared plant species richness and composition beneath Pinus contorta to that in adjacent vegetation and other P. contorta stands across a network of sites in its native (Canada and USA) and non-native (Argentina, Chile, Finland, New Zealand, Scotland, Sweden) ranges. At sites in North America and Europe, within the natural distribution of the genus Pinus, P. contorta was not associated with decreases in diversity. In the Southern Hemisphere, where there are no native Pinaceae, plant communities beneath P. contorta were less diverse than in other regions and compared to uninvaded native vegetation. Effects on native vegetation were particularly pronounced where P. contorta was a more novel life form and exhibited higher growth rates. Our results support the hypothesis that the eco-evolutionary experience of the native vegetation, and thus the novelty of the invader, determines the magnitude of invader impacts on native communities. Understanding the eco-evolutionary context of invasions will help to better understand and predict where invasion impacts will be greatest and to prioritize invasive species management.

Notes

Stand data
This file contains the mean species richness, litter depth, Pinus contorta growth rate, and basal area of each stand sampled in the study. The values are the means of 10 2x2 m plots that were randomly located in each stand. At each site there was a Pinus contorta stand and a stand of non-Pinus contorta vegetation. We use the term "stand" for simplicity but the other vegetation types could include other forest types, plantations, shrublands or grasslands. The vegetation type of each stand is noted. The location of each site is also noted.
Davis_et_al_plot_data.csv

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: OISE 09667472 and EPS-1101342

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Davis_et_al_plot_data.csv

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Additional details

Related works

Is cited by
10.1111/ecog.04014 (DOI)

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