(Article of periodic en Anglais - 1998)

Document title

Body size variability and a Sangamonian extinction model for Amblyrhiza, a West Indian megafaunal rodent

Authors(s) and Affiliation(s)



The megafaunal rodent Amblyrhiza inundata from Anguilla and St. Martin is often cited in lists of late Quaternary human-induced extinctions, but is date of disappearance has never been established. Here, the AA. present a suite of uranium-series disequilibrium dates from 3 independent Amblyrhiza sites in Anguilla, all of which cluster in marine isotope Stage 5. They argue that the most probable cause of the extinction of Amblyrhiza was a failure of island populations to adjust to catastrophic reductions in available range which accompanied last interglacial sea level maxima. They support this argument with quantitative extinction probability estimates drawn from persistence time models


Article of periodic

published at : Quaternary research / ISSN 0033-5894 / CODEN QRESAV

Editor : Elsevier, San Diego, CA - ETATS-UNIS (1970)

Millesime : 1998, vol. 50, no1 [pp. 80-89]

Bibliographic references : 53 ref.

Collation : Illustration ;



INIST-CNRS, Cote INIST : 15739

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1998.
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