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Endemism Predicts Intrinsic Vulnerability to Nonindigenous Species on Islands.

Berglund, Helena LU ; Järemo, Johannes LU and Bengtsson, Göran LU (2009) In American Naturalist 174(1). p.94-101
Abstract
Abstract: While numerous efforts have been made to identify and quantify factors controlling invasibility of biological communities, less attention has been given to analyzing the expressions of vulnerability to nonindigenous species (NIS). Using the International Union for the Conservation of Nature and Natural Resources Red List database for birds, mammals, and amphibians and the Invasive Species Specialist Group global invasive species database as sources of information, we developed a new indicator for the relative intrinsic vulnerability of islands to NIS. It was calculated from the residuals to the global relationship between the impact of NIS and their exposure to the islands. The impact of NIS was expressed as the proportion of... (More)
Abstract: While numerous efforts have been made to identify and quantify factors controlling invasibility of biological communities, less attention has been given to analyzing the expressions of vulnerability to nonindigenous species (NIS). Using the International Union for the Conservation of Nature and Natural Resources Red List database for birds, mammals, and amphibians and the Invasive Species Specialist Group global invasive species database as sources of information, we developed a new indicator for the relative intrinsic vulnerability of islands to NIS. It was calculated from the residuals to the global relationship between the impact of NIS and their exposure to the islands. The impact of NIS was expressed as the proportion of indigenous species threatened by NIS, and the exposure was the number of invasive NIS per number of native species. The residuals corresponded to the variability in impact, about 60%, that was not explained by exposure. The proportion of endemic species on the islands was positively correlated with the relative intrinsic vulnerability and explained about 60% of its variability. The robust relationship between endemism and intrinsic vulnerability reinforces the role of long-term isolation for the fate of island indigenous species to biological invasions and is useful in identifying vulnerable environments without having a specific invader in mind. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
American Naturalist
volume
174
issue
1
pages
94 - 101
publisher
University of Chicago Press
external identifiers
  • wos:000266566400009
  • scopus:66849106870
ISSN
0003-0147
DOI
10.1086/598501
language
English
LU publication?
yes
id
73374325-0bce-4a3f-a1e4-1649401ae4b4 (old id 1412112)
date added to LUP
2009-06-11 09:31:38
date last changed
2017-07-09 03:39:06
@article{73374325-0bce-4a3f-a1e4-1649401ae4b4,
  abstract     = {Abstract: While numerous efforts have been made to identify and quantify factors controlling invasibility of biological communities, less attention has been given to analyzing the expressions of vulnerability to nonindigenous species (NIS). Using the International Union for the Conservation of Nature and Natural Resources Red List database for birds, mammals, and amphibians and the Invasive Species Specialist Group global invasive species database as sources of information, we developed a new indicator for the relative intrinsic vulnerability of islands to NIS. It was calculated from the residuals to the global relationship between the impact of NIS and their exposure to the islands. The impact of NIS was expressed as the proportion of indigenous species threatened by NIS, and the exposure was the number of invasive NIS per number of native species. The residuals corresponded to the variability in impact, about 60%, that was not explained by exposure. The proportion of endemic species on the islands was positively correlated with the relative intrinsic vulnerability and explained about 60% of its variability. The robust relationship between endemism and intrinsic vulnerability reinforces the role of long-term isolation for the fate of island indigenous species to biological invasions and is useful in identifying vulnerable environments without having a specific invader in mind.},
  author       = {Berglund, Helena and Järemo, Johannes and Bengtsson, Göran},
  issn         = {0003-0147},
  language     = {eng},
  number       = {1},
  pages        = {94--101},
  publisher    = {University of Chicago Press},
  series       = {American Naturalist},
  title        = {Endemism Predicts Intrinsic Vulnerability to Nonindigenous Species on Islands.},
  url          = {http://dx.doi.org/10.1086/598501},
  volume       = {174},
  year         = {2009},
}