摘要 : The vegetation structure of Bachman's Sparrow (Aimophila aestivalis) breeding habitat and its relationship to home range size was studied on pine plantations in central Arkansas. Univariate and multivariate analyses showed that b... 展开 The vegetation structure of Bachman's Sparrow (Aimophila aestivalis) breeding habitat and its relationship to home range size was studied on pine plantations in central Arkansas. Univariate and multivariate analyses showed that breeding areas had less litter, Fewer trees and shrubs, shorter woody vegetation, and more forbs than unoccupied sites. Few differences in density of ground vegetation and cover were found between occupites And unoccupied sites. Size of home range was negatively correlated with percent for cover, Percent ground cover, forbs height, percent grass cover, and vertical vegetation density be- Tween 0-90 cm, but was positively related to percent canopy cover. 收起