BIODIVERSIDAD Y FRONTERAS: CUENCA DEL RÍO BERMEJO (SALTA, ARGENTINA)

F. CANCINO; G. AGUILERA

Serie Conservación de la Naturaleza

Fundación Miguel Lillo

Lugar: San Miguel de Tucumán; Año: 2015

0325-9625

- ?Biodiversity and Borders: Basin of the Rio Bermejo (Salta, Argentina)?. The management of biodiversity at binational borders requires cooperative interaction, as is the case in the Bermejo River Basin, between Bolivia and Argentina. The objective was to conduct a survey of the biota in the basin of the Rio Grande de Tarija and Rio Seco, during the dry season. Sampling took place in 2005 in Transition Forest zones, following a 100 km transect between the towns of Madrejones and Ramos. Three hundred and fifty six taxa were recorded: 106 invertebrates and aquatic insects, 6 nematode parasites, 28 fish, 7 amphibians and reptiles, 118 birds, 5 mammals and 92 vascular plants. Madrejones was the area that was best preserved and we found more diversity there in all groups compared to the other areas. New range location for 12 fish taxa are reported. Characiformes predominated over Siluriformes. Among nematodes, new locations were recorded, as well as new host records and new species. The avifauna was represented by more chaqueño bird species than Yunga species. The results on invertebrates were similar to previous studies. This inventory is the first step needed to implement monitoring and protection, aimed at sustainable management of the area. We recommend creating multiple use reserves in Madrejones.