(Article of periodic en Anglais - 2012)

Document title

The role of thresholds and fine-scale processes in driving upper treeline dynamics in the Bighorn Mountains, Wyoming

Authors(s) and Affiliation(s)

ELLIOTT G.P. (1) ;
(1) Dep. of Geography, Univ. of Missouri, Columbia, ETATS-UNIS


This research investigates whether abrupt changes indicative of a threshold response occurred in the spatial and temporal patterns of tree establishment within upper treeline ecotones in the Bighorn Mountains of north-central Wyoming, with a particular focus on assessing whether treeline advance occurred. Dendroecological techniques were used to reconstruct the spatiotemporal patterns of tree establishment at multiple spatial scales (local and landscape). Increases in the elevational extent of treeline and tree density above timberline were reconstructed for each decade of the 20th century. The results highlight the importance of both broad-scale climate inputs and fine-scale site conditions in governing the rate and pattern of tree establishment in high-elevation treeline environments


Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 2012, vol. 33, no2 [pp. 129-145]

Bibliographic references : 3 p.

Collation : 7 fig., 1 tabl.



INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.2747/0272-3646.33.2.129

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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