INVESTIGADORES
ACOSTA HOSPITALECHE Carolina Ileana Alicia
artículos
Título:
Reidos (Aves) cuaternarios de Argentina: inferencias paleoambientales.
Autor/es:
TAMBUSS, C. & ACOSTA HOSPITALECHE, C.
Revista:
AMEGHINIANA
Editorial:
ASOCIACION PALEONTOLOGICA ARGENTINA
Referencias:
Lugar: La Plata; Año: 2002 vol. 39 p. 95 - 102
ISSN:
0002-7014
Resumen:
Abstract. Based on the analysis of climatic- environmental variables (particularly annual precipitations and hydric index), the possible paleoenvironmental inferences derived from the rheid fossil record are restricted. The species distribution of this group of birds, influenced by the mentioned physical variables is discussed. Record of Pterocnemia pennata (d? Orbigny) at Paso Otero and Monte Hermoso, outside the area of present day distribution and where Rhea americana (Lynnaeus) actually lives suggest and arid and semiarid climate during the late Pleistocene- Holocene in those areas, whit annual precipitations up to 300 mm. A probable corologic change originated by a climat c deteroration during the Late Pleistocene and the early Holocene is postulated for the rheid population.
