Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)

Background: The Atlantic Forest is globally one of the priority ecoregions for biodiversity conservation. In Argentina, it is represented by the Paranense Forest, which covers a vast area of Misiones Province between the Paraná and Uruguay rivers. The Uruguay River is a global hotspot of freshwater...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Gutiérrez Gregoric, Diego Eduardo, Lucía, Micaela de
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2016
Materias:	Ciencias Naturales Anatomy Argentina Chilina luciae sp. nov Chilina nicolasi sp. nov Chilina santiagoi sp. nov Conservation Malacological provinces
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/86290
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-86290
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales Anatomy Argentina Chilina luciae sp. nov Chilina nicolasi sp. nov Chilina santiagoi sp. nov Conservation Malacological provinces
spellingShingle	Ciencias Naturales Anatomy Argentina Chilina luciae sp. nov Chilina nicolasi sp. nov Chilina santiagoi sp. nov Conservation Malacological provinces Gutiérrez Gregoric, Diego Eduardo Lucía, Micaela de Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)
topic_facet	Ciencias Naturales Anatomy Argentina Chilina luciae sp. nov Chilina nicolasi sp. nov Chilina santiagoi sp. nov Conservation Malacological provinces
description	Background: The Atlantic Forest is globally one of the priority ecoregions for biodiversity conservation. In Argentina, it is represented by the Paranense Forest, which covers a vast area of Misiones Province between the Paraná and Uruguay rivers. The Uruguay River is a global hotspot of freshwater gastropod diversity, here mainly represented by Tateidae (genus Potamolithus) and to a lesser extent Chilinidae. The family Chilinidae (Gastropoda, Hygrophila) includes 21 species currently recorded in Argentina, and three species in the Uruguay River. The species of Chilinidae occur in quite different types of habitats, but generally in clean oxygenated water recording variable temperature ranges. Highly oxygenated freshwater environments (waterfalls and rapids) are the most vulnerable continental environments. We provide here novel information on three new species of Chilinidae from environments containing waterfalls and rapids in the Uruguay River malacological province of Argentina. Materials and Methods: The specimens were collected in 2010. We analyzed shell, radula, and nervous and reproductive systems, and determined the molecular genetics. The genetic distance was calculated for two mitochondrial markers (cytochrome c oxidase subunit I-COI- and cytochrome b -Cyt b-) for these three new species and the species recorded from the Misionerean, Uruguay River and Lower Paraná-Río de la Plata malacological provinces. In addition, the COI data were analyzed phylogenetically by the neighbor-joining and Bayesian inference techniques. Results: The species described here are different in terms of shell, radula and nervous and reproductive systems, mostly based on the sculpture of the penis sheath. Phylogenetic analyses grouped the three new species with those present in the Lower Paraná-Río de la Plata and Uruguay River malacological provinces. Discussion: Phylogenetic analyses confirm the separation between the Uruguay River and the Misionerean malacological provinces in northeast Argentina. These new endemic species from the Uruguay River add further support to the suggestion that this river is a diversity hotspot of freshwater gastropods (with 54 species present in this basin, 15 of them endemic). These endemic species from environments with rapids and waterfalls should be taken into account by government agencies before the construction of dams that modify those ecologic niches in the Uruguay River.
format	Articulo Articulo
author	Gutiérrez Gregoric, Diego Eduardo Lucía, Micaela de
author_facet	Gutiérrez Gregoric, Diego Eduardo Lucía, Micaela de
author_sort	Gutiérrez Gregoric, Diego Eduardo
title	Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)
title_short	Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)
title_full	Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)
title_fullStr	Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)
title_full_unstemmed	Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)
title_sort	freshwater gastropods diversity hotspots: three new species from the uruguay river (south america)
publishDate	2016
url	http://sedici.unlp.edu.ar/handle/10915/86290
work_keys_str_mv	AT gutierrezgregoricdiegoeduardo freshwatergastropodsdiversityhotspotsthreenewspeciesfromtheuruguayriversouthamerica AT luciamicaelade freshwatergastropodsdiversityhotspotsthreenewspeciesfromtheuruguayriversouthamerica
bdutipo_str	Repositorios
_version_	1764820489531817985

Freshwater gastropods diversity hotspots: Three new species from the Uruguay River (South America)

Ejemplares similares