NDLI: Modeling the potential North American distribution of Russian olive, an invader of riparian ecosystems

Content Provider	Springer Nature Link
Author	Collette, Liana K. D. Pither, Jason
Copyright Year	2015
Abstract	Russian olive (Elaeagnus angustifolia L., Elaeagnaceae) has gained notoriety as an invasive tree in the United States (US), particularly owing to its impacts within western riparian ecosystems. In Canada, its potential for range expansion has yet to be assessed, despite alarming infestations in parts of southern British Columbia (BC). Existing niche model predictions are of limited utility because they are restricted to the US, were constructed in the absence of higher latitude records in Canada, and did not consider potentially important soil-related predictors. Here, we address these gaps, and include more than 1400 new occurrence records for Canada, most of which were collected using Google Street View. Our Maxent niche models achieved excellent performance (AUC > 0.9), and identified mean temperature of the coldest quarter and topsoil pH as the first and second-most important predictor variables, respectively, neither of which was included in previously published niche models. High habitat suitability is predicted in areas of western Canada that presently lack occurrence records, including along several major rivers in south-central BC. Our findings should prove valuable to nascent detection and management efforts in western Canada, and also highlight the benefits of basing niche model predictions on occurrence records encompassing as much of the invaded range as possible.
Starting Page	1371
Ending Page	1383
Page Count	13
File Format	PDF
ISSN	13850237
Journal	Plant Ecology
Volume Number	216
Issue Number	10
e-ISSN	15735052
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-09-05
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Realized niche Ecological niche model Maxent Exotic species Elaeagnaceae Riparian habitat Soil pH Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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