Foraging Behavior of Kaempfer's Woodpecker (Celeus obrieni), a Bamboo Specialist

The condor

Gabriel Augusto Leite¹ 

关键词: Celeus obrieni;    Guadua paniculata;    Tocantins;    foraging strategies;    vegetation structure.;   

DOI  :  10.1525/cond.2013.120062

学科分类：动物科学

来源: Central Ornithology Publication Office

【 摘 要 】

Abstract. Because of the patchiness of their habitat, its perceived low conservation value, and tendency to burn, bamboo-specialist birds are vulnerable to habitat loss. We documented the habitat use and foraging strategies of Celeus obrieni, Kaempfer's Woodpecker, in forested cerrado (savanna) with patches of the bamboo Guadua paniculata near Pium, Tocantins, Brazil. We surveyed for C. obrieni, measured vegetation structure at 30 sites where it was detected and 23 where it was not detected, then compared vegetation characteristics through nonmetric multidimentional scaling and one-way analysis of similarity to determine whether C. obrieni was specializing on particular habitat characteristics. We studied the species' foraging and compared the abundance of prey in drilled and nondrilled stems to evaluate its dietary specialization. All sites with C. obrieni had large, tall stands of G. paniculata, indicating habitat specialization. Drilling most frequently on large, dry stems from 2 to 4 m off the ground,...

【 授权许可】

CC BY