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Mastozoología neotropical

On-line version ISSN 1666-0536


UDRIZAR SAUTHIER, Daniel E.; ABBA, Agustín M.; BENDER, José B.  and  SIMON, Pablo M.. Mammals of the Arroyo Perucho Verna, Entre Ríos, Argentina. Mastozool. neotrop. [online]. 2008, vol.15, n.1, pp. 75-84. ISSN 1666-0536.

The study area is located in the middle-east of Entre Ríos; fitogeographically, the region is included in the Pampean Province, with relicts of the nearest Espinal Province and influenced by the Paranaese Province through the gallery forest of the streams. Eight field works were carried out (including trapping, owls pellets analysis, observation transects, indirect evidences, interviews and collection of vegetal species). Seven vegetal associations were detected: crop field, pasture, shrubland, xerophilic forest, gallery forest and exotic forest. In these associations there were found 33 mammal species (28 natives and 5 exotics) grouped in the families Cricetidae (6 spp.), Didelphidae (3 spp.), Mephitidae (1 sp.), Mustelidae (2 spp.), Molossidae (3 spp.), Vespertilionidae (2 spp.), Canidae (2 spp.), Muridae (2 spp.), Felidae (1 sp.), Dasypodidae (1 sp.), Phyllostomidae (1 sp.), Hydrochoeridae (1 sp.), Octodontidae (1 sp.), Procyonidae (1 sp.), Caviidae (1 sp.), Chinchillidae (1 sp.), Myocastoridae (1 sp.), Leporidae (1 sp.) and Cervidae (1 sp.). Considering that the major part of Entre Ríos province has became crop and livestock fields, it is important to remark the role assumed by the environments of Perucho Verna stream, and likewise the hundred of small rivers that cross the province, in the preservation of mammal assemblages, since it is in these streams where still remain-though very poor-many of the original environments and mammal assemblages.

Keywords : Environments; Owls pellets; Pampean Province.

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