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| Polop,Francisco; Sepúlveda,Lorena; Pelliza Sbriller,Alicia; Polop,Jaime; Provensal,M. Cecilia. |
| We described the spatial and seasonal variation of feeding habits of Oligoryzomys longicaudatus in four environments of the steppe-forest transition zone of Argentinean Patagonia. Composition of fecal pellets collected from live-trap captures was determined with microhistological techniques using an identifcation key of representative plants of our study areas. Fruits and seeds constituted 57.2% of O. longicaudatus diets, followed by foliage (26.8%) and arthropods (16.0%). Fruits and seeds, foliage parts, and arthropods were primarily found in individuáis from shrublands, forests, and peridomestic areas, whereas foliage predominated in pastures. Similarity Index revealed differences between pastures and the other environments. Diet in shrubland showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Spatial variation; Temporal variation; Frugivorous; Opportunism; Reservoir of Andes genotype hantavirus. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000300005 |
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| Monjeau,J. Adrián; Tort,Jorge A.; Márquez,Jorge; Jayat,Pablo; Palmer Fry,Benjamin N.; Nazar Anchorena,Sofía D.; Di Vincenzo,Andrés; Polop,Francisco. |
| The distribution and range of the 45 South American species of Carnivora (except Pinnipedia) currently recognized taxonomically was delimited from a detailed study of the literature. This study analyzes the ecogeographic patterns that operate at a continental scale in this family, which are particularly peculiar for not respecting natural landscape frontiers. The relation between the species distribution and latitudinal bands was evaluated using a Geographical Information System (GIS) with statistical regressions and correlations being carried out between geographical variables, areas, species richness, and latitude. The latitudinal bands with a higher species richness corresponded to the tropical bands with larger quantity of ecoregions, whereas a marked... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carnivora; Energetic gradient; Macroecology; Neotropics. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100009 |
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| Polop,Francisco; Sepúlveda,Lorena; Pelliza Sbriller,Alicia; Polop,Jaime; Provensal,M. Cecilia. |
| El objetivo de este estudio es conocer la dieta de especies de roedores que coexisten en arbustales del ecotono bosque-estepa de la Patagonia Argentina. La composición de las heces colectadas en las trampas de captura viva, durante el período reproductivo de tres años (2004-2006), fue determinada con técnicas microhistológicas, utilizando una clave de identificación de plantas representativas del área de estudio. Considerando la afinidad general, los ítems alimenticios fueron agrupados en las siguientes categorías: partes vegetativas, frutos-granos y artrópodos. Para evaluar la similitud de las dietas, se utilizaron los ítems diferenciados por especie o género para cada especie de roedor, a los que se aplicó un análisis de agrupamiento. Los resultados... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caracterización trófica; Chubut; Pequeños roedores. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832015000100009 |
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