Abstract
Cafeteria experiment with Akodon montensis Thomas, 1913 (Rodentia, Cricetidae, Sigmodontinae) from a remnant of semideciduous seasonal forest in Southern Brazil
Highlights
Rodents represent the largest group of mammals in number of species,[1] but the rodent fauna in Brazil is still insufficiently known
Most of the studies on the rodent diet cite them as generalist species, without many specializations,[1,5,15] which seems to agree with A. montensis, because 87%, that is, more than half of the fruit sample
Research in coniferous forest in the northern US indicated a higher consumption of native species seeds, and consumption of exotic species by granivorous rodents, concluding that the role of small mammals as agents of biotic resistance to invasion of plants is complex.[15]
Summary
Rodents represent the largest group of mammals in number of species,[1] but the rodent fauna in Brazil is still insufficiently known. The detailed knowledge of the autoecology of a species allows us to understand the ecological processes in which it is involved, such as its dynamics and its interactions.[8] The availability of food resources is one of the most important factors of population maintenance,[9] as it influences both the population fluctuations and the survival rate of some species, such as in sigmodontine rodents, whose populations increase in relation to quantity of fruits.[10]
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