Roedores sigmodontinos en el sitio Divisadero Monte 6

TETA,P; PARDIÑAS,U; ALDAZABAL, VERONICA; SILVEIRA,M; EUGENIO, EMILIO

MASTOZOOLOGíA NEOTROPICAL

UNIDAD DE ZOOLOGÍA Y ECOLOGÍA ANIMAL, INSTITUTO ARGENTINO DE INVESTIGACIÓN DE LAS ZONAS ARIDAS, CRICYT, CONICET

Lugar: Mendoza; Año: 2013 vol. 20 p. 171 - 177

0327-9383

Sigmodontine rodents from ?El Divisadero Monte 6? archaeological site (Late Holocene, Buenos Aires, Argentina): Taxonomy and enviromental reconstruction. We describe the assemblage of sigmodontine rodents from the archaeological site ?El Divisadero Monte 6?. This site is placed within the fringe of coastal wetlands of the Bahía de Samborombón (General Lavalle county, Buenos Aires province, Argentina). A radiocarbon date of 540 ± 60 years B.P. indicates a Late Holocene age for the studied sample. The studied sample is mostly composed by species still frequent in the area (e.g., Akodon azarae, Oligoryzomys flavescens, Holochilus brasiliensis) and other sigmodontines regionally extinct (e.g.. Bibimys torresi, Pseudoryzomys simplex). The observed decrease both in richness and diversity in recent samples probably was triggered by human-made disturbances over the pampean region during the last centuries.