A fauna de vertebrados de um banhado costeiro em área periurbana no sul do Brasil

Resumo

Marshlands are preferential reproduction places and refuge for many species of animals and plants. The marshes of the coastal plains of Rio Grande do Sul State, Brazil, have been modified by agricultural activities and increasing urbanization. The ecological importance of a private marshland situated in Viamão City (30°05’S, 50°47’W), Rio Grande do Sul State, to local fauna, was evaluated to guide the owners in the preservation of the ecosystem. Monthly, we did samples of vertebrate species (a total of 45) to estimate their numbers and their seasonal fluctuations in the area. There were significant differences in the frequencies of some abundant species that were related to their feeding, reproduction or displacement habths. Macrophytes and grasses offer good places to nest and protection of Gallinula chloropus (Linnaeus,1758), Vanellus chilensis (Gmelin, 1782), Jacana jacana (Linnaeus,1758), Podiceps major (Boddaert,1783), Podilymbus podiceps (Linnaeus,1758) (Aves) and Myocastor
coypus (Molina, 1782) (Mammalia). The preservation of the studied marshland in a periurban area is important to maintain the local and migratory fauna.