IMPOVERISHMENT AND NESTEDNESS IN CAVIOMORPH ASSEMBLAGES

Authors
SIMONETTI JA
Citation
Ja. Simonetti, IMPOVERISHMENT AND NESTEDNESS IN CAVIOMORPH ASSEMBLAGES, Journal of mammalogy, 75(4), 1994, pp. 979-984
Citations number
30
Categorie Soggetti
Zoology
Journal title
Journal of mammalogy → ACNP
ISSN journal
00222372
Volume
75
Issue
4
Year of publication
1994
Pages
979 - 984
Database
ISI
SICI code
0022-2372(1994)75:4<979:IANICA>2.0.ZU;2-#
Abstract
Comparisons of species composition in prehistoric (8.0 x 10(3) to 1.2 x 10(3) years ago) and contemporary assemblages of caviomorphs from ce ntral Chile reveal that species richness has decreased through the Hol ocene. The local extinction of two species, Aconaemys fuscus and Octod on bridgesi, suggests that current assemblages are impoverished and ne sted subsets of prehistoric caviomorph assemblages.