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Article

English, Portuguese

ID: <

oai:doaj.org/article:5b083bd33b2d44b48f6989880d2f85ef

>

·

DOI: <

10.18406/2316-1817v2n22010268

>

Where these data come from
Distribution of avifauna in a fragment of native scrub in urban areas in the municipality of launcher, south of Minas Gerais

Abstract

A survey of bird diversity has been carried out in an urban forest fragment called Ecological in the municipality of wash, MG – Brazil. Objective in this work assess bird diversity, outline some strategies for the conservation of fauna forest and analyse as bird diversity properties are related to the elements the landscape, on a local scale. Methods used to record birds involved viewing/vocalisation at fixed points and mist networks, distributed inside and edge of fragment. 50 days of fieldwork (520 hours of observation) were counted. 122 bird species belonging to 38 families were registered. In the winter period (May to August, 2007) a lower occurrence of fruit- and nectrivorous birds was observed, possibly linked to the absence of fruit and flowers as a result of low temperatures and lack of rainfall. The summer period saw a higher flow of birds, possibly related to offering fruit, flowers, grains, water and nesting and shelter sites in the study area. Although species threatened with extinction have not been detected, the number of species and families occurring in the area were high in relation to the location and size of the fragment forestry. The most abundant poultry families were Tyrannidae (23.7 %), followed by Thraupidae (9.8 %) and Emberezidae (7.3 %). In terms of areas, 32.7 % of species were registered in the edges environment and 46.7 % of species in the indoor environment. In relation to stratification, 36 % of species were detected in dossel, 14 % in mean stratum (sub-bosque) and 10.6 % in low strata (shrubs and soil). For food gguilds, 47.5 % of Insetivorous species, 13.9 % of fruit-producing species, 13.1 % of granivores, 9.0 % of onivores, 8.1 % of carnivores, 7.3 % nectaronivores and 0.8 % debris. The results show the importance of fragments urban forestry for the dynamic balance of bird diversity in order to maintain biological diversity of fauna-flora interaction.

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