A riqueza da avifauna no Parque do Sabiá, zona urbana de Uberlândia (MG)

Abstract

Urban green areas play an important role in the maintenance of animal species. The Park of Sabia is located in the urban perimeter of the municipal district of Uberlândia, with an area of 185 ha and remnant forest around 35 ha. Its vegetation presents several types. of landscapes, including semideciduous forest, swamp forest, dense savannah, “vereda” and urbanized areas with the presence o f artifical lakes. This work aimed to determine the richness o f the avifauna o f the Park of Sabia, as well as, to evaluate possible differences in its composition among the several landscapes in the study area. The work was accomplished ffom July 2000 to November 2002, at least one monthly observation in the period of the morning (7:00-11:00), adding up to 33 visits (334 hours). The registrations were made visually, with aid of binoculars and/or by vocalizations along a transect that crossed different landscapes. The Index o f Sorensen was used to determine the similarity among the existent areas in the transect. A total o f 149 species distributed in 16 orders and 38 families were recorded. The Passeriformes Order included the most o f the species (n=80, 56%), standing out the families Emberizidae and Tyrannidae (n=27, 18% and 26, 17%, respectively). Among the orders no-Passeriformes, the most representative were Ciconiformes and Apodiformes, both with 11 species (7%). The richest families o f no-passeriformes were Trochilidae (n=9, 6%), Columbidae (n=7, 5%) and Psittacidae (n=7, 5%). Five species o f endemic birds of the Cerrado were present in the survey: Basileuterus leucophrys, Herpsilochmus longirostris, Hylocriptus rectirosíris, Antilophia galeata and Cyanocorax cristatellus. Most o f the birds (80%) were classified as residents or probably residents in the Park. The main alimentary guilds were insetivory (n = 52, 35%), onivory (n = 46, 31%) and ffugivory (n = 13, 9%). All areas were considered similars with index of Sorensen abo ve 0,80, what can be associated the proximity and relationship o f the investigated areas. The results indicate that the Park of Sabiá can be considered important local for the maintenance o f the regional avifauna