Northwest Fisheries Science Center

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Document Type: Journal Article
Center: NWFSC
Document ID: 8836
Title: Past and estimated future impact of invasive alien mammals on insular threatened vertebrate populations
Author: Erin E. McCreless, David D. Huff, D. A. Croll, Bernie R. Tershy, Dena R. Spatz, Nick D. Holmes, Stuart H.M. Butchart, Chris Wilcox
Publication Year: 2016
Journal: Nature Communications
Volume: 7
Issue: 12488
Pages: 1-11
DOI: 10.1038/ncomms12488
Keywords: invasive species,island populations
Abstract:

Invasive mammals on islands pose severe, ongoing threats to global biodiversity. However, the severity of threats from different mammals, and the role of interacting biotic and abiotic factors in driving extinctions, remain poorly understood at a global scale. Here we model global extirpation patterns for island populations of threatened and extinct vertebrates. Extirpations are driven by interacting factors including invasive rats, cats, pigs, mustelids and mongooses, native species taxonomic class and volancy, island size, precipitation and human presence. We show that controlling or eradicating the relevant invasive mammals could prevent 41–75% of predicted future extirpations. The magnitude of benefits varies across species and environments; for example, managing invasive mammals on small, dry islands could halve the extirpation risk for highly threatened birds and mammals, while doing so on large, wet islands may have little benefit. Our results provide quantitative estimates of conservation benefits and, when combined with costs in a return-on-investment framework, can guide efficient conservation strategies.

Description:

Peer-reviewed journal article describing the impact of invasive mammals on threatened vertebrate island populations.

Full Text URL: http://www.nature.com/ncomms/2016/160818/ncomms12488/full/ncomms12488.html
URL1: The next link will exit from NWFSC web site Full text
URL2: The next link will exit from NWFSC web site pdf
Theme: Recovery and rebuilding of marine and coastal species
Foci: Describe the relationships between human activities and species recovery, rebuilding and sustainability.
Official Citation:

McCreless, E. E., D. D. Huff, D. A. Croll, B. R. Tershy, D. R. Spatz, N. D. Holmes, S. H. M. Butchart, and C. Wilcox. 2016. Past and estimated future impact of invasive alien mammals on insular threatened vertebrate populations. Nature Communications 7:12488.