SMALL MAMMALS (RODENTIA, INVESTIVORA) IN HANOI

The ecology of rodents and insectivores in Hanoi (Vietnam) was studied throughout 5 months (February - June 1993). The study was carried out on both sides of Red river in the environment of several types: lawns , weeds, dumps, buildings. 10 species of rodents (N=156) and 1 species of insectivores, (N=39) were trapped. Right and left sides of Red riv er are characterized by different species number and diversity, and di fferent distribution of habitats. Rattus flavipectus, R. norvegicus an d Mus musculus were the most abundant species. The towns in tropical r egions are characterized by richer species diversity and larger amount s of commensal rodents as compared to European ones.