Biodiversity and borders: basin of the Rio Bermejo (Salta, Argentina).

Published online
08 Feb 2017
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Antelo, C. & Bulacio, E. & Cancino, F. & Marigliano, N. & Peralta, M. & Ramallo, G. & Romero, F.
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Biodiversity management in binational borders requires cooperative interaction, as is in the case of the Bermejo River Basin, between Bolivia and Argentina. The purpose was to conduct a survey of the biota in the sub-basin of the Rio Grande de Tarija and Seco River, during the dry season. This sampling took place in 2005 in Transition Forest zones, following a 100 km transect between the towns of Madrejones and Ramos. There were recorded three hundred and fifty six taxa: 106 invertebrates and aquatic insects, 6 nematode parasites, 28 fish, 7 amphibians and reptiles, 118 birds, 5 mammals and 92 vascular plants. Compared to the other areas, Madrejones was the best preserved, where the major diversity in all groups was recorded. New locations for 12 fish taxa are added to their area of distribution. Characiformes predominated over Siluriformes. Among nematodes, new capture locations, as well as new host records and new species were reported. The avifauna was represented by more bird species from Chaco than those coming from The Yungas. Invertebrate results were similar to previous studies (made in the field). This inventory constitutes the first necessary stage to implement monitoring systems and environmental protection in the area, for its sustainable management. We recommend the creation of multiple use reserves in Madrejones.

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