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Habitat selection by blackburnian warblers wintering in colombia

机译:哥伦比亚越冬的布莱克本莺的栖息地选择

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We compared habitat characteristics in plots used by Blackburnian Warblers (Den- droica fusca) to randomly selected paired plots in a high Andean native secondary forest in Colombia. Density of trees in all diameter-at-breast-height (dbh) categories, density of snags, And density of native trees and shrubs were higher on the bird-centered plots. Percent veg- Etation cover (0-1 m, 1-2 m and 2-3 m above the ground) was lower at bird-centered plots. Blackburnian Warblers avoided non-native trees species, represented mainly by Eucalyptus globulus in the study area, and preferred native tree species.
机译:我们将布莱克本莺(Dendroica fusca)使用的地块中的栖息地特征与哥伦比亚安第斯原始原生二级森林中随机选择的成对地块进行了比较。在以鸟类为中心的地块上,所有处于胸径高度(dbh)的树的密度,障碍物的密度以及原生树和灌木的密度都更高。在鸟类居中地块,植被覆盖的百分比(地面上0-1 m,1-2 m和2-3 m)较低。布莱克本莺避免了研究区内主要以桉树为代表的非本地树种,并首选本地树种。

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