Phytoclimatic segregation of sub-AntarcticNothofaguswoodland types in Tierra del Fuego, southern South America

Autor:	José Angel Arranz, Carmen Allué, José Manuel Beneitez, Javier M. García-López, Leonardo Collado, José O. Bava
Rok vydání:	2012
Předmět:	Nothofagus Ecology biology Range (biology) Water stress Niche Plant Science Woodland Nothofagus betuloides Sub antarctic biology.organism_classification Tierra Geography Ecology Evolution Behavior and Systematics
Zdroj:	Plant Ecology & Diversity. 5:373-385
ISSN:	1755-1668 1755-0874
DOI:	10.1080/17550874.2012.691563
Popis:	Background: Climatic variables determining the most suitable sites for the woodlands of Tierra del Fuego are not yet as well understood as those related to their geographical range. Aim: The aim of this paper is to provide some insights into the relationships between climatic niche and current distribution of three Nothofagus species in Tierra del Fuego. Methods: We have identified the climatic variables responsible for the most suitable sites for three sub-Antarctic Nothofagus woodland types within their climatic ranges by calculating suitability indices, using the CLIMPAIR niche-based phytoclimatic model. Results: The distribution range of the major Nothofagus woodlands is mainly driven by variables related to water stress, whereas phytoclimatic suitability is mainly driven by thermal variables related to warm summer temperatures for Nothofagus betuloides and N. pumilio and to winter cold for N. antarctica that are also mainly responsible for the peculiarity of the Fueguian climate. Conclusions: These f...
Databáze:	OpenAIRE
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