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(Article of periodic en Anglais - 1985)

Document title

Late Pleistocene woodlands in the bolson de Mapimi: a refugium for the Chihuahan Desert biosta?

Authors(s) and Affiliation(s)

VAN DEVENDER T. R. ; BURGESS T. L. ;

Abstract

Packrat middens radiocarbon dated 12,280 345 and 12,700 165 yr BP record expansions of junipers and papershell pinyon (Pinus remota) into the desert lowlands of Durango and Coahuila, Mexico (26 N). An equable Late Wisconsin climate marked by mild winters with increased precipitation and by cool summers with reduced summer monsoons is proposed. The Bolson of Mapimi was not a geographical refugium unaffected by glacial climates, although many Chihuahuan Desert plants and animals probably remain in situ as members of equable woodlands. Equable climates, low extinction rates, and repeated, rapid glacial/interglacial climatic fluctuations may have been important in the evolution and accumulation of species at lower latitudes.

Source

Article of periodic

published at : Quaternary research New York

Editor :

Millesime : 1985, vol. 24, no3 [pp. 346-353]

Bibliographic references : 22 réf.

Language

Anglais

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