On the presence of Nasua Storr (Carnivora, Procyonidae) in the Buenos Aires province in the late Holocen

The genus Nasua is represented by two species, Nasua nasua and Nasua narica. Its current distributionspans from the south of North America to the north of the Rio Negro in Uruguay. Both species of thegenus inhabit a great number of forested habitats. In Argentina, the species Nasua nasua is found in...

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Detalles Bibliográficos
Autores: Ramírez, Mariano A, Prevosti, Francisco Juan, Acosta, Alejandro, Buc, Natacha, Loponte, Daniel Marcelo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/46322
Acceso en línea:http://hdl.handle.net/11336/46322
Access Level:acceso abierto
Palabra clave:Nasua
Procyonidae
Parana’s delta
Late Holocene
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
Descripción
Sumario:The genus Nasua is represented by two species, Nasua nasua and Nasua narica. Its current distributionspans from the south of North America to the north of the Rio Negro in Uruguay. Both species of thegenus inhabit a great number of forested habitats. In Argentina, the species Nasua nasua is found in Tucuman,Jujuy, Chaco, Formosa and the northeast of Santa Fe. In the present contribution we describe a lower canineof Nasua nasua from the late Holocene of the Arroyo Fredes archaeological site, in the Parana?s Delta, BuenosAires Province, Argentina, which is outside the current distribution of this species. We compared the canine withseveral specimens of Nasua nasua both males and females. Given the strong sexual dimorphism observed in thecanines of this species, we recognized the specimen as a male. Two hypotheses can explain the presence of thisspecimen in the Parana?s Delta of Buenos Aires: (1) Current and past climatic similarities between the southernmostrecord of the species and the Arroyo Fredes archeological site, and the corridor effect caused by the galleryforests. (2) Human transport by the guaranies