Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region

Bivalves are one of the most representative groups in the Phylum Mollusca, with over 1,100 freshwater species around the world except Antarctica. About 900 of these species belong to the Order Unionida Gray, 1854. In South America, the distributional range of the Unionida includes all countries in t...

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Autores principales: Torres, Santiago, Cao, Luciana, Gutiérrez Gregoric, Diego Eduardo, Lucía, Micaela de, Brea, Francisco, Darrigran, Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Zoología
conservation science
rivers
fresh water
species diversity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80622
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80622
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
conservation science
rivers
fresh water
species diversity
spellingShingle Zoología
conservation science
rivers
fresh water
species diversity
Torres, Santiago
Cao, Luciana
Gutiérrez Gregoric, Diego Eduardo
Lucía, Micaela de
Brea, Francisco
Darrigran, Gustavo
Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region
topic_facet Zoología
conservation science
rivers
fresh water
species diversity
description Bivalves are one of the most representative groups in the Phylum Mollusca, with over 1,100 freshwater species around the world except Antarctica. About 900 of these species belong to the Order Unionida Gray, 1854. In South America, the distributional range of the Unionida includes all countries in the region and extends as far south as the lakes and rivers of Argentinean- Chilean Patagonia. With the aim of generating distribution maps for the different genera of Unionida in Argentina, we consulted the databases of the nation’s main official malacological collections. The data were analyzed and georeferenced using the point-radius method. Spatial analyses were performed with the software Q-GIS 2.16.3 Nødebo using vector layers under the 2007 Argentinean Geodesic Positions reference system. A total 1,833 lots were analyzed, of which it was possible to georeference 1,503. The distribution of Unionida in Argentinean territory was analyzed according to political provinces, Surface Drainage Basins and the Argentinean Protected Areas. Species richness was analyzed using the surface drainage basins of Argentina. We generate distribution maps for each genus and discuss the species threat status and conservation degree in the region. Only six (18%) of the Unionida present in Argentina have been classified by the IUCN, four are Least Concern and two are Data Deficient. This pattern is also valid for all of South America. More than 95% of the distributional range of the Unionida has no protected area. Conservation management is necessary for the preservation of Unionida diversity in southern South America.
format Articulo
Articulo
author Torres, Santiago
Cao, Luciana
Gutiérrez Gregoric, Diego Eduardo
Lucía, Micaela de
Brea, Francisco
Darrigran, Gustavo
author_facet Torres, Santiago
Cao, Luciana
Gutiérrez Gregoric, Diego Eduardo
Lucía, Micaela de
Brea, Francisco
Darrigran, Gustavo
author_sort Torres, Santiago
title Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region
title_short Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region
title_full Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region
title_fullStr Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region
title_full_unstemmed Distribution of the Unionida (Bivalvia, Paleoheterodonta) from Argentina and its conservation in the Southern Neotropical Region
title_sort distribution of the unionida (bivalvia, paleoheterodonta) from argentina and its conservation in the southern neotropical region
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/80622
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AT caoluciana distributionoftheunionidabivalviapaleoheterodontafromargentinaanditsconservationinthesouthernneotropicalregion
AT gutierrezgregoricdiegoeduardo distributionoftheunionidabivalviapaleoheterodontafromargentinaanditsconservationinthesouthernneotropicalregion
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AT breafrancisco distributionoftheunionidabivalviapaleoheterodontafromargentinaanditsconservationinthesouthernneotropicalregion
AT darrigrangustavo distributionoftheunionidabivalviapaleoheterodontafromargentinaanditsconservationinthesouthernneotropicalregion
bdutipo_str Repositorios
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