Habitat use by Sharp-tailed Tyrant (Culicivora caudacuta), and Cock-tailed Tyrant (Alectrurus tricolor) in the Cerrado of Southeastern Brazil
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
24/10/2013
24/10/2013
2012
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Resumo |
Habitat use by Sharp-tailed Tyrant (Culicivora caudacuta), and Cock-tailed Tyrant (Alectrurus tricolor) in the Cerrado of Southeastern Brazil. Obligatory grassland birds are dependent on a limited set of native habitats that are disappearing almost everywhere. We examined the use of macrohabitat and microhabitat by two threatened species of flycatchers, the Sharp-tailed Tyrant, Culicivora caudacuta and the Cock-tailed Tyrant, Alectrurus tricolor in a preserved area of cerrado. We generated logistic regression models to explain the presence of these species through variables of microhabitat. Both flycatchers occurred mainly in grassland areas and favored areas with a low density of palms (Attalea geraensis) and trees. The Sharp-tailed Tyrant also favored areas with a high density of low shrubs (< 1 m) and less exposed soil. The positive relationship found between the presence of Sharp-tailed Tyrant and soil cover may indicate the importance of litter and understory vegetation for shelter and food. The conservation of both flycatcher species in the study area should benefit from controlling palm density and the maintenance of grasslands with low shrubs. CAPES CAPES Birders Exchange Birders Exchange Instituto de Biociencias da Universidade de Sao Paulo Instituto de Biociencias da Universidade de Sao Paulo Idea Wild Idea Wild E. Alexander Bergstrom Memorial Research Award E. Alexander Bergstrom Memorial Research Award Neotropical Grassland Conservancy Neotropical Grassland Conservancy |
Identificador |
REVISTA BRASILEIRA DE ORNITOLOGIA, VICOSA, v. 20, n. 1, supl. 1, Part 2, pp. 52-58, MAR, 2012 0103-5657 |
Idioma(s) |
eng |
Publicador |
SOC BRASILEIRA ORNITOLOGIA VICOSA |
Relação |
REVISTA BRASILEIRA DE ORNITOLOGIA |
Direitos |
openAccess Copyright SOC BRASILEIRA ORNITOLOGIA |
Palavras-Chave | #CONSERVATION #GRASSLANDS #HABITAT SELECTION #MANAGEMENT #THREATENED BIRDS #ALIEN GRASSES #BIODIVERSITY #ORNITHOLOGY |
Tipo |
article original article publishedVersion |