A avifauna de uma área urbana do município de Ipatinga, Minas Gerais, Brasil

Abstract

Birds in an urban area of Ipatinga city, Minas Gerais State, Brazil. The development of urban areas results in changes of natural landscapes, including the creation of several artifi cial environments. Thus, manyanimals fi nd new opportunities for survival in these areas. This study aimed to obtain information about the richness, composition, and frequency of occurrence of the trophic guilds of an urban avian community in Ipatinga city, Minas Gerais State, followed by a general description. Between August 2005 and July 2006, 81 days were spent in sampling. From the method of direct observation, 57 species were recorded. The richness estimate for the area was 74.86 species (Chao2). The number of species between rainy and dry periods did notdiffer (p>0.05). Trophic guilds remained with a ratio of relatively similar species throughout the year, with a predominance of the omnivores and insectivores. Species such as Pitangus sulphuratus, Furnarius rufus and Sicalis fl aveola were favored in the open areas. Two exotic species, Columba livia and Passer domesticus, were abundant. These results emphasize the necessity of the existence of natural areas within the urban context, considering not only the protection of the wildlife, but also the improvement of the quality of life in the cities.