Biodiversity of the Orinoco river basin: obligatory reference.
January 17, 2011, Colombia, Venezuela.
The Orinoco river binational basin extends over an area of 981,446 km2, shared by 65% in Venezuela and by Colombia in 35%, it provides valuable information about the current state of knowledge regarding to the flora and vegetation, insects , fishes, amphibians and reptiles, birds and mammals and presents the results of seven unpublished studies on biodiversity, ecology and effects of human activities on ecosystems of the basin. The Orinoco is one of the longest rivers in South America with 2,150 km long and a flow of 31,061 m3/sec.
The book “Biodiversity of the Orinoco river basin,” crystallizes the effort that brought together over 90 researchers from Colombia and Venezuela, to integrate the scientific information generated in recent decades, the watershed that unit them.
This publication was launched in December 2010 and was supported by the Research Institute for Bioresources Alexander von Humboldt, WWF Colombia, Omacha Foundation, La Salle Foundation and the Institute for the Study of the Orinoco, assigned to the National University of Colombia; addition to the participation of at least 32 institutions in both countries: Colombia and Venezuela.
As noted by the editors, scientists Carlos Lasso, José Usma, Anabel Rial and Fernando Trujillo, the paper gives valuable information about the current state of knowledge regarding the flora and vegetation, insects, fishes, amphibians and reptiles, birds and mammals; whose analysis allowed the specialists to select, by consensus, a total of 19 priority areas for conservation and sustainable use of biodiversity in the Orinoco river basin.
Also agree that the information collected will contribute to a better understanding of the biodiversity of the basin, its components, processes, distribution and current biogeographic patterns, and will consider the proposed areas as unique geographic areas that merit urgent conservation actions for welfare of both countries.
1. Meta High river
2. Guaviare High river
3. Fluvial Star of Inárida.
4. Bita-Meta Orinoco corridor.
5. Meta-Casanare corridor.
6. Cusiana Mani/ Tauramena.
7. Casanare Wetlands.
8. Arauca Wetlands.
9. Black river Tachira State.
10. Flooding Savannah of Apure river.
11. Massif of El Baul.
12. Piedmont of Barinas.
13. Orinoco river confluence Caura river
14. Mamo Island.
15. Orinoco Delta corridor-south.
16. Maigualida sierra, Cuchivero river.
17. Ventuari river.
18. Tomo and Vichada river basin.
19. Orinoco average corridor.
Similarly, the book presents the results of seven unpublished studies on biodiversity, ecology and effects of human activities on ecosystems of the Orinoco basin, among which are: mercury contamination in fish of commercial interest and concentration organochlorine and organophosphorus in water and sediments of the Orinoco, the flora of the Orinoco basin useful for sustaining regional fish diversity and the fire as part of the natural dynamics of savannas in the Llanos Orientales of Colombia, and the effects on the ecology of wetlands of the Llanos of Venezuela caused by the construction of dams, among others, in the Orinoco basin.
The book “Biodiversity of the Orinoco River basin” details that the binational basin extends over 981,446 km2, shared by Venezuela by 65% and 35% in Colombia, where a population of nearly 10 million inhabitants. The Orinoco is one of the longest rivers in South America with 2,150 km long, the third in the world with a flow of 31,061 m3/sec. and fifth in sediment transport about 150 million tons / year. Also, mention that this basin summarizes the three main geological structures of nature: mountains of folding, shields and megacuencas sedimentation, and the three types of water: white (cloudy), clear and black (tea colored).