Ecological status of the Pampean plain streams and rivers (Argentina)

Abstract

The Pampean biogeographic area extends along a vast territory of South America. The presem study forms part of a regional research program to investigate the physical-chemical and biological features of Pampean plain streams and rivers located between 34° 51 '-37" 59' S and 57° 21 '-59° 08' W, with a humid-temperate dimate. Brooks, streams and rivers can originate in shallow depressions of the plain and few streams have their sources on the hills that occupy only a small area.