Habitat selection of Molina's hog-nosed skunks in relation to prey abundance in the Pampas grassland of Argentina

We radiotracked 16 (6 males, 10 females) adult Molina's hog-nosed skunks (Conepatus chinga) to examine habitat selection using compositional analysis at 2 spatial scales in a protected area and a landscape fragmented by agriculture. To aid in understanding the habitat use of skunks, the abundan...

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Detalles Bibliográficos
Autores: Castillo, Diego Fabián, Luengos Vidal, Estela Maris, Casanave, Emma Beatriz, Lucherini, Mauro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/117333
Acceso en línea:http://hdl.handle.net/11336/117333
Access Level:acceso abierto
Palabra clave:COMPOSITIONAL ANALYSIS
CONEPATUS CHINGA
MEPHITIDAE
RADIOTELEMETRY
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
Descripción
Sumario:We radiotracked 16 (6 males, 10 females) adult Molina's hog-nosed skunks (Conepatus chinga) to examine habitat selection using compositional analysis at 2 spatial scales in a protected area and a landscape fragmented by agriculture. To aid in understanding the habitat use of skunks, the abundance of invertebrates was estimated in each habitat. Habitat use and selection varied between the 2 study sites. Skunks selected habitat at landscape level but not at home range level in the protected area. In the cropland area skunks showed overall habitat selection at both scales, although at landscape level we did not detect a significant ranking of habitats. In both sites, when we found a significant selection grassland patches ranked first. Although this habitat does not reach 10 of the total area, it presented the highest abundance of Coleoptera. Because Coleoptera are the main prey item of this mephitid, these results support the hypothesis that habitat selection in C. chinga is highly related to food availability. We conclude that the preservation of grassland patches may be essential for managing C. chinga populations in the highly human-modified landscapes of the Pampas.