Biodiversidad de la región superior del Complejo Deltaico del Río Paraná

PABLO ACEÑOLAZA; ADRIANA MANZANO; ESTELA RODRIGUEZ; LAURA SANCHEZ; ANA LAURA RONCHI; ESTEBAN GIMÉNEZ; DANILO DEMONTE; ZULEICA MARCHETTI

Temas de la Biodiversidad del Litoral III

Magna

Lugar: San Miguel de Tucumán; Año: 2008;

Vascular flora and vertebrate fauna of the Paraná River Complex is analyzed from the species richness and distribution. Detailed list of species is provided for each taxonomic group, and an analysis of distribution and conservation status is done, comparing richness values in neighboring provinces (Santa Fe and Entre Ríos). 456 vascular plants are mentioned, 9 endemic for Argentina and 41 exotics. Birds are represented with 253 species of 48 families, which constitute 25 % of Argentinean ornitofauna. Herpetofauna has 77 species, 30 of them correspond to amphibians and 47 of reptiles; 14 have a status of vulnerable, rare, or insufficiently known. Between mammals, 35 species were registered, including 6 introduced for productive proposes. We mention the presence of feral fauna, coming from domestic introductions. In the analysis of the distribution, we appreciate that this area has an intermediate to low richness pattern. Even many studies have been done in this region, it’s difficult to find complete list of species, and we pointed out that some list presented for the area (papers with different objectives), present a low number of species comparing with this presented here.