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Notes on the Rodent Faunas of Two Panamanian Forests
Theodore H. Fleming
Journal of Mammalogy
Vol. 51, No. 3 (Aug., 1970), pp. 473-490
Published by: American Society of Mammalogists
Stable URL: http://www.jstor.org/stable/1378388
Page Count: 18
You can always find the topics here!Topics: Species, Female animals, Rats, Rodents, Forest ecology, Reproduction, Forest habitats, Canals, Dry seasons, Molting
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Twenty-one species of rodents were trapped or observed in two forests in the Panama Canal Zone. Data on the ecology, molt, and food habits of seven species are presented. Among the terrestrial rats and mice, three species (Liomys adspersus, Oryzomys capito, and Proechimys semispinosus) were common in the Pacific slope forest, whereas two (Oryzomys capito and Proechimys semispinosus) were common in the Atlantic slope forest. Year-round breeding occurs in eight of nine species; Liomys adspersus breeds seasonally. Adults of L. adspersus and P. semispinosus molt during restricted portions of the year, but there was no apparent synchrony of molt in adults of Heteromys desmarestianus, Oryzomys capito, Zygodontomys microtinus, and Sigmodon hispidus. Ecological segregation serves to minimize competition among the rodents in both forests.
Journal of Mammalogy © 1970 American Society of Mammalogists