%0 Journal Article
%T Diversity and distribution of aquatic insects in Southern Brazil wetlands: implications for biodiversity conservation in a Neotropical region
%A Leonardo Maltchik
%A Marina Schmidt Dalzochiov
%A Cristina Stenert
%A Ana Silvia Rolon
%J Revista de Biolog¨ªa Tropical
%D 2012
%I Universidad de Costa Rica
%X The selection of priority areas is an enormous challenge for biodiversity conservation. Some biogeographic methods have been used to identify the priority areas to conservation, and panbiogeography is one of them. This study aimed at the utilization of panbiogeographic tools, to identify the distribution patterns of aquatic insect genera, in wetland systems of an extensive area in the Neotropical region (~280 000km2), and to compare the distribution of the biogeographic units identified by the aquatic insects, with the conservation units of Southern Brazil. We analyzed the distribution pattern of 82 genera distributed in four orders of aquatic insects (Diptera, Odonata, Ephemeroptera and Trichoptera) in Southern Brazil wetlands. Therefore, 32 biogeographic nodes corresponded to the priority areas for conservation of the aquatic insect diversity. Among this total, 13 were located in the Atlantic Rainforest, 16 in the Pampa and three amongst both biomes. The distribution of nodes showed that only 15% of the dispersion centers of insects were inserted in conservation units. The four priority areas pointed by node cluster criterion must be considered in further inclusions of areas for biodiversity conservation in Southern Brazil wetlands, since such areas present species from differrent ancestral biota. The inclusion of such areas into the conservation units would be a strong way to conserve the aquatic biodiversity in this region. La selecci¨®n de ¨¢reas prioritarias es un enorme desaf¨ªo para la conservaci¨®n de la biodiversidad. M¨¦todos biogeogr¨¢ficos se han utilizado para identificar ¨¢reas prioritarias para la conservaci¨®n, como la panbiogeograf¨ªa. Este estudio tuvo como objetivo el empleo de herramientas panbiogeogr¨¢ficas, para identificar los patrones de distribuci¨®n de los g¨¦neros de insectos acu¨¢ticos, en los sistemas de humedales de una extensa ¨¢rea de la regi¨®n Neotropical (~280 000km2), y as¨ª comparar la distribuci¨®n de las unidades biogeogr¨¢ficas identificadas por los insectos acu¨¢ticos, con las unidades de conservaci¨®n del sur de Brasil. Asimismo, se analizaron los patrones de distribuci¨®n de los 82 g¨¦neros de cuatro ¨®rdenes de insectos acu¨¢ticos (Diptera, Odonata, Ephemeroptera y Trichoptera) en los humedales del sur de Brasil. Ahora bien, 32 nodos biogeogr¨¢ficos correspondieron a las ¨¢reas prioritarias para la conservaci¨®n de la diversidad de insectos acu¨¢ticos. Dentro de este total, 13 se encontraban en el Bosque Atl¨¢ntico, 16 en la Pampa y tres entre los dos biomas. La distribuci¨®n de nodos mostr¨® que s¨®lo el 15% de los centros de dispersi¨®n de
%K Panbiogeograf¨ªa
%K an¨¢lisis de trazos
%K ¨¢reas prioritarias
%K bioma
%K invertebrados acu¨¢ticos
%K panbiogeography
%K track analysis
%K priorities areas
%K biome
%K aquatic invertebrates
%U http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442012000100019