Seasonal elevational movements of the Little Greenbul Andropadus virens in the Uluguru Mountains, Tanzania
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Date
2014-11
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Abstract
he little greenbul Andropadus virens Cassin 1858 is themost common and ubiquitous forest greenbul in Africa(Keith, Urban & Fry, 1992). In East Africa, it is mainlyfound in lowland forests, especially in edges, secondarygrowth and moist thickets (Britton, 1980). It is anunderstorey species mainly feeding on fruits, and occa-sionally, it forages on insects (Keith, Urban & Fry, 1992). Ithas been detected crossing forest gaps in the East Usam-bara mountains (Korfanta, Newmark & Kauffman, 2012).In their reviews of forest birds and seasonal elevationalmovements in the Eastern Arc mountains, Stuart et al.(1993) and Burgess & Mlingwa (2000) make no mentionof a seasonal elevational movement by the little greenbul.However, based on differences in capture rates of littlegreenbul between seasons, with cold season having highercapture rates, its seasonal elevational movements havebeen suspected by Stuart (1983) and Cordeiro et al. (2006)in the East Usambara and Udzungwa mountains, respec-tively. Nevertheless, our understanding of the seasonalmigratory status of the little greenbul is poor andunequivocal evidence for seasonal elevational movementof the little greenbul based on the recapture of ringedindividuals is nonexistent. In this note, I provide evidencefor seasonal elevational movement of the little greenbul inthe Uluguru mountains in central Tanzania.
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http://onlinelibrary.wiley.com/doi/10.1111/aje.12190/epdf
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Werema, C., 2015. Seasonal elevational movements of the little greenbul Andropadus virens in the Uluguru mountains, Tanzania. African Journal of Ecology, 53(2), pp.253-256.