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Abstract:

The pampas deer (Ozotoceros bezoarticus) is native to South America and is endangered in Argentina. In Buenos Aires province, Argentina, the last population of pampas deer is harbored in the Bahía Samborombón Wildlife Refuge (BSWR), which includes protected areas and numerous cattle ranches. This population has been declining and changing progressively in its distribution since 1985, and negative interactions between pampas deer and introduced ungulates (livestock and feral pigs) have been proposed among the main causes of its decline. We examined the abundance, distribution, and interactions among pampas deer, cattle, and feral pigs at site and landscape scales in the BSWR. At the site scale, coexistence between pampas deer and cattle at the same paddock was only possible at moderate stocking rates (0.2-0.4 AU/ha), and no deer were recorded at paddocks when stocking rates were above 0.6 AU/ha. Pampas deer and feral pigs co-occurred more frequently, but deer switched their behavior and increased levels of surveillance in response to proximity of feral pigs. At the landscape scale, a clear spatial segregation and differential distribution was detected among pampas deer, cattle, and feral pigs along the BSWR. Our results suggest that the current distribution of pampas deer at the study area is a consequence of avoiding contact with both livestock and feral pigs at the site scale. Thus, negative interactions recorded between pampas deer and introduced ungulates at the site scale were expressed at the landscape scale. Both in situ and ex situ conservation efforts are urgently needed to conserve pampas deer. © 2017 American Society of Mammalogists,.

Registro:

Documento: Artículo
Título:Spatial segregation among pampas deer and exotic ungulates: A comparative analysis at site and landscape scales
Autor:Carusi, L.C.P.; Beade, M.S.; Bilenca, D.N.
Filiación:Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Grupo de Estudios Sobre Biodiversidad en Agroecosistemas (GEBA), Ciudad Universitaria, Pabellón II, 4 Piso, Buenos Aires, C1428EHA, Argentina
Administración de Parques Nacionales (APN), Bartolomé Mitre 160, General Lavalle, Buenos Aires, B7103, Argentina
Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, 4 Piso, Buenos Aires, C1428EHA, Argentina
Universidad Nacional de Avellaneda, Departamento de Ambiente y Turismo, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mario Bravo 1460, Avellaneda, Buenos Aires, B1870, Argentina
Palabras clave:Conservation; Introduced ungulates; Livestock; Ozotoceros bezoarticus; abundance; comparative study; conservation; deer; endangered species; feral organism; interspecific interaction; introduced species; invasive species; livestock; pig; population decline; protected area; spatial analysis; spatial distribution; ungulate; Argentina; Buenos Aires [Argentina]; Bos; Cervidae; Ozotoceros bezoarticus; Suidae; Ungulata
Año:2017
Volumen:98
Número:3
Página de inicio:761
Página de fin:769
DOI: http://dx.doi.org/10.1093/jmammal/gyx007
Título revista:Journal of Mammalogy
Título revista abreviado:J. Mammal.
ISSN:00222372
CODEN:JOMAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222372_v98_n3_p761_Carusi

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Citas:

---------- APA ----------
Carusi, L.C.P., Beade, M.S. & Bilenca, D.N. (2017) . Spatial segregation among pampas deer and exotic ungulates: A comparative analysis at site and landscape scales. Journal of Mammalogy, 98(3), 761-769.
http://dx.doi.org/10.1093/jmammal/gyx007
---------- CHICAGO ----------
Carusi, L.C.P., Beade, M.S., Bilenca, D.N. "Spatial segregation among pampas deer and exotic ungulates: A comparative analysis at site and landscape scales" . Journal of Mammalogy 98, no. 3 (2017) : 761-769.
http://dx.doi.org/10.1093/jmammal/gyx007
---------- MLA ----------
Carusi, L.C.P., Beade, M.S., Bilenca, D.N. "Spatial segregation among pampas deer and exotic ungulates: A comparative analysis at site and landscape scales" . Journal of Mammalogy, vol. 98, no. 3, 2017, pp. 761-769.
http://dx.doi.org/10.1093/jmammal/gyx007
---------- VANCOUVER ----------
Carusi, L.C.P., Beade, M.S., Bilenca, D.N. Spatial segregation among pampas deer and exotic ungulates: A comparative analysis at site and landscape scales. J. Mammal. 2017;98(3):761-769.
http://dx.doi.org/10.1093/jmammal/gyx007