INVESTIGADORES
IGLESIAS Ari
artículos
Título:
The evolution of Patagonian climate and vegetation,from the Mesozoic to the present
Autor/es:
ARI IGLESIAS; ANALÍA ARTABE; MOREL EDUARDO
Revista:
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Año: 2011 vol. 103 p. 409 - 422
ISSN:
0024-4066
Resumen:
In this review, Patagonian phytogeographical patterns are analyzed from a global andevolutionary perspective that takes into account aspects from the geology, climatology,and plant evolution. The biomes contained within the different climatic belts areinferred through time for the southwestern Gondwana supercontinent, based onpaleogeographical reconstructions, climate sensitive rocks, and plant distribution. Somecurrent plant components of Patagonia can be traced back to early Mesozoic times, tothe Triassic and Jurassic mesophytic floras. The main features of the Cretaceous andPaleogene Patagonian floras are described and compared with other Gondwanic areasthat shared, at the time, more plant components than they do today. The Neogene florasare analysed in relation to the rise of the Andes and the global climatic cooling, whichdifferentiated the Andean and the Extra-Andean regions, and ended in the modern cooltemperateAndean forest and the arid Steppe.
