Population dynamics of the rat Microryzomys minutus (Rodentia: Muridae) in the Venezuelan Andes
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Universidad de Costa Rica
2006
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| author | Daniel R. Cabello |
| author_facet | Daniel R. Cabello |
| contents | Population dynamics of the rat Microryzomys minutus (Rodentia: Muridae) in the Venezuelan Andes Daniel R. Cabello Guillermo Bianchi-Perez Paolo Ramoni-Perazzi Biología Muridae Venezuela cloud forest Neotropical rodents Microryzomys minutus The population dynamics of the small forest rice rat Microryzomys minutus, a murid rodent that occurs in the high altitudes of the northern and central Andes, was studied in disturbed and primary environments in a cloud forest of the Venezuelan Andes (Juan Pablo Peñaloza National Park, 8º11’N, 71º49’W). We collected 121 animals (66 and 55 ) between 1995 and 1998, using pitfall traps with formalin. Adult males were heavier than adult females. Relative abundance was much greater in the disturbed environments (over 10 individuals in some periods) than in the primary cloud forest: 4-8 individuals. In the disturbed environments, the rats were extremely abundant in the first sampling period, and less frequent afterwards. In the cropland, abundance showed some fluctuations during the study and displayed two small abundance peaks in March-June 1997 and 1998. In the mined area, the rats had irregular fluctuations until March-June 1997 and were not recorded in July-October 1997. The occurrence of this rat in both disturbed and natural habitats confirms the wide ecological tolerance of this species. Rev. Biol. Trop. 54(2): 651-. Epub 2006 Jun 01. 2006 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44954230 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.54 |
| format | Artículo científico |
| id | redalyc_44954230 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Population dynamics of the rat Microryzomys minutus (Rodentia: Muridae) in the Venezuelan Andes Daniel R. Cabello Biología Muridae Venezuela cloud forest Neotropical rodents Microryzomys minutus Population dynamics of the rat Microryzomys minutus (Rodentia: Muridae) in the Venezuelan Andes Daniel R. Cabello Guillermo Bianchi-Perez Paolo Ramoni-Perazzi Biología Muridae Venezuela cloud forest Neotropical rodents Microryzomys minutus The population dynamics of the small forest rice rat Microryzomys minutus, a murid rodent that occurs in the high altitudes of the northern and central Andes, was studied in disturbed and primary environments in a cloud forest of the Venezuelan Andes (Juan Pablo Peñaloza National Park, 8º11’N, 71º49’W). We collected 121 animals (66 and 55 ) between 1995 and 1998, using pitfall traps with formalin. Adult males were heavier than adult females. Relative abundance was much greater in the disturbed environments (over 10 individuals in some periods) than in the primary cloud forest: 4-8 individuals. In the disturbed environments, the rats were extremely abundant in the first sampling period, and less frequent afterwards. In the cropland, abundance showed some fluctuations during the study and displayed two small abundance peaks in March-June 1997 and 1998. In the mined area, the rats had irregular fluctuations until March-June 1997 and were not recorded in July-October 1997. The occurrence of this rat in both disturbed and natural habitats confirms the wide ecological tolerance of this species. Rev. Biol. Trop. 54(2): 651-. Epub 2006 Jun 01. 2006 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44954230 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.54 |
| title | Population dynamics of the rat Microryzomys minutus (Rodentia: Muridae) in the Venezuelan Andes |
| topic | Biología Muridae Venezuela cloud forest Neotropical rodents Microryzomys minutus |
| url | https://www.redalyc.org/articulo.oa?id=44954230 |