Diskussion:Chilenische Chinchillaratte
aus Degupedia, der freien Wissensdatenbank
Studienort: Paposo
"The Bennett´s chinchilla rat inhabits rocky matorral and shrublands from the sea level and coastal canyons to 2000 meters in the Andes (Mann, 1978). The study site, Paposo (50 km N of Taltal), has a shrub cover dominated mostly by cacti (Copiapoa cinerea [Phil.] Britton et Rose, Eulychnia iquiquensis [Schumann] Britton et Rose, Echinopsis deserticola [Werderm] Friedrich et G.D. Rowley and Trichocereus coquimbanus [Mol.] Britton et Rose) and Euphorbia lactiflua Phil., a large succulent shrub. Also there is Puya boliviensis Baker (Bromeliaceae) under which we collected the skull here described. This is the typical vegetation of coastal desert zones in northern Chile, that are influenced by fog whereas yearly precipitation averages 15 mm, being evenly distributed throughout the year (Jaksic et al., 1999). This zone is referred as the "region of matorral" described by Mann (1960) and also named as "Mediterranean coastal desert of Euphorbia lactiflua and Eulychnia iquiquensis" by Luebert and Pliskoff (2006), where Paposo is historically considered the northern limit, while the southern limit is 30°S, coinciding with the limits of A. bennettii murrayii that is replaced by A. bennettii bennettii. However, it has been recently shown by Sielfeld et al. (1995), Muñoz et al. (2001), Pinto (2009) and Pinto and Luebert (2009) that this mediterranean coastal shrub desert extends much far north to Cerro Camaraca (south of Arica), in a discontinous way, restricted to "camanchaca" fog dominated places of the coastal hills.
Other rodent species inhabiting the Paposo area are Thylamys elegans, Abrothix olivaceus and Phyllotis darwini, all typically central Chile species (Meserve and Glanz, 1978; Spotorno et al., 1998)."
Quelle:
- Guzmán, J.A. Sielfeld, W (2011): A new northern distribution limit of Abrocoma bennettii (Rodentia, Abrocomidae) in the coastal Atacama desert, Paposo, north of Chile. Mastozoología Neotropical 18(1): 131-134. (HTML (http://www.scielo.org.ar/img/revistas/mznt/v18n1/html/v18n1a12.htm))
