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(Article of periodic en Anglais - 2014)

Document title

redicting functional role and occurrence of Whitebark Pine (Pinus albicaulis) at alpine treelines : model accuracy and variable importance

Authors(s) and Affiliation(s)

RESLER L.M. (1) ; SHAO Y. (1) ; TOMBACK D.F. (2) ; MALANSON G.P. (3) ;
(1) Dept. of Geography, Virginia Tech, Blacksburg, ETATS-UNIS
(2) Dept. of Integrative Biology, Univ. of Colorado, Denver, ETATS-UNIS
(3) Dept. of Geographical and Sustainability Sciences, Univ. of Iowa, Iowa City, ETATS-UNIS

Abstract

This article examines the utility of four predictive models to understand how the functional role of whitebark pine (Pinus albicaulis), a keystone species, in the Rocky Mountains varies spatially with biophysical conditions. Results show that for the combined model, growing season temperature and slope curvature were the most important predictive variables for association and relative position, as revealed by overall agreement among the four models. Prediction accuracy and variable importance varied at the study area level, though, indicating that different conclusions could be drawn from each model, if examined independently

Source

Article of periodic

published at : Annals of the Association of American Geographers / ISSN 0004-5608 / CODEN AAAGAK

Editor : Association of American Geographers, Washington, DC - ETATS-UNIS (1911)

Millesime : 2014, vol. 104, no4 [pp. 703-722]

Language

Anglais

INIST-CNRS, Cote INIST : 5096

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/00045608.2014.910072

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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