Foraging-Habitat Selection of Black-Backed Woodpeckers in Forest Burns of Southwestern Idaho

The condor

Jonathan G. Dudley¹ 

关键词: Black-backed Woodpecker;    foraging habitat selection;    Idaho;    Picoides arcticus;    remote sensing;    resource-selection probability function;    wildfire;   

DOI  :  10.1525/cond.2012.110020

学科分类：动物科学

来源: Central Ornithology Publication Office

【 摘 要 】

Abstract. We examined foraging-habitat selection of Black-backed Woodpeckers (Picoides arcticus) in burned forests of southwestern Idaho during 2000 and 2002 (6 and 8 years following wildfire). This woodpecker responds positively to large-scale fire disturbances and may be at risk from logging and post-fire management. With 100 radio-locations of four adult males, we used resource-selection probability functions in logistic form in an information-theoretic framework to model the Black-backed Woodpecker's selection of foraging habitat at fine and coarse spatial scales. Fine-scale data included characteristics of the foraging tree (tree level) and local habitat surrounding foraging trees (plot level, 0.04 ha), whereas coarse-scale data (224–778 ha) included patch characteristics within home ranges. Model selection by Akaike's information criterion identified a multi-scale model containing tree- and plot-level covariates, and their interaction, as the best model to characterize foraging trees. The positive e...

【 授权许可】

CC BY