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Cited by 438

The DOI matches its Crossref record; 85 of the 85 references it cites were found in a registry or an index.

Collinearity in ecological niche modeling: Confusions and challenges

Open access
Feng, Xiao, Park, Daniel S., Liang, Ye, Pandey, Ranjit, Papeş, Monica·2019·Ecology and Evolution

Abstract

Ecological niche models are widely used in ecology and biogeography. Maxent is one of the most frequently used niche modeling tools, and many studies have aimed to optimize its performance. However, scholars have conflicting views on the treatment of predictor collinearity in Maxent modeling. Despite this lack of consensus, quantitative examinations of the effects of collinearity on Maxent modeling, especially in model transfer scenarios, are lacking. To address this knowledge gap, here we quantify the effects of collinearity under different scenarios of Maxent model training and projection. We separately examine the effects of predictor collinearity, collinearity shifts between training and testing data, and environmental novelty on model performance. We demonstrate that excluding highly correlated predictor variables does not significantly influence model performance. However, we find that collinearity shift and environmental novelty have significant negative effects on the performance of model transfer. We thus conclude that (a) Maxent is robust to predictor collinearity in model training; (b) the strategy of excluding highly correlated variables has little impact because Maxent accounts for redundant variables; and (c) collinearity shift and environmental novelty can negatively affect Maxent model transferability. We therefore recommend to quantify and report collinearity shift and environmental novelty to better infer model accuracy when models are spatially and/or temporally transferred.

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Metadata

Authors
Feng, X., Park, D. S., Liang, Y., Pandey, R., & Papeş, M.
Venue
Ecology and Evolution
Publisher
Wiley
Published
2019-08-20
Volume
9
Issue
18
Pages
10365-10376
ISSN
2045-7758 (ISSN-L)
OpenAlex
W2969247546
Cited by
438
References
85
FWCI
48.71
Type
journal article
Language
en
Open access
gold

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