Abstract

The Collared Crescentchest (Melanopareia torquata) is a small insectivore endemic to the Cerrado. We examine the habitat use of this bird in a preserved Cerrado area in southeastern Brazil. Despite its occurrence in grassland with shrubs, the species used these areas less frequently than expected. The Collared Crescentchest mainly used areas of campo cerrado, but it was not recorded in a disturbed one. The common occurrence of exotic grass (U. decumbens) and cattle grazing may have brought about factors for its occurrence. However, the preference for native grasses may indicate an adverse indirect relationship against its occurence as there is competition between native and exotic grasses in the Cerrado. The presence of the Collared Crescentchest included the highest density of tall shrubs (>1 m) and native grasses. Conservation of the species should involve preserved areas of campo cerrado with a dominance of native grasses and tall shrubs.

Highlights

  • The Cerrado is biome rich in bird species, accounting for about 50% of the total number of bird species in Brazil (856 species)

  • We studied habitat use by one endemic bird of the Cerrado in the Ecológica de Itirapina (EEI)

  • This study was conducted in the Cerrado of Estação Ecológica de Itirapina (EEI), in the cities of Itirapina and Brotas (22° 15’ S and 47° 49’ W) including an area of 2,720 ha (Figure 1)

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Summary

Introduction

The Cerrado is biome rich in bird species, accounting for about 50% of the total number of bird species in Brazil (856 species). It is the second largest of Brazil’s major biomes (Ab’Saber, 1977) and the most threatened savannah in the world due to the high rate of deforestation (Klink and Machado, 2005). The Collared Crescentchest (Melanopareia torquata; Melanopareiidae) (body mass 13.5 (males) and 15.6 (females) Kanegae et al, 2010a) is a small insectivorous endemic of the Cerrado (Silva and Bates, 2002). It is a cryptic species moving mainly on the ground, among clumps of grasses.

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