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Acta zoológica mexicana
versão On-line ISSN 2448-8445versão impressa ISSN 0065-1737
Resumo
HERNANDEZ-BETANCOURT, Silvia F.; CIME POOL, José A.; MEDINA PERALTA, Salvador e GONZALEZ-VILLANUEVA, Minelia L.. Fluctuación poblacional de Ototylomys phyllotis Merriam, 1901 (Rodentia: Muridae) en una selva mediana subcaducifolia del sur de Yucatán, México. Acta Zool. Mex [online]. 2008, vol.24, n.2, pp.161-177. ISSN 2448-8445.
Population dinamics of the big-eared climbing rat (Ototylomys phyllotis) was studied in a subdeciduous tropical rainforest located at Rancho Hobonil, Tzucacab, Yucatan using a mark-recapture technique, from April 1996 to April 1998 during five nights per 24 months. The minimum-number-known-alive technique (MNKA) was used to estimate population size. We captured 123 rats, 52% were females and 48% males. The sex ratio was 1:1 during this study. Density ranged from 10 to 46 ind./ha. And was not significantly correlated with precipitation (p>0.05). Presence of reproductive individuals from both sexes during the majorities of the studied months and the reproductive activity from females suggest a continuous poliestric pattern for this species.
Palavras-chave : Populations; Muridae; Ototylomys phyllotis; subdeciduous tropical rainforest; Yucatan; Mexico.