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Habitat selection by peatland birds in a central mine BOG: the effects of scale and year

机译:中央煤矿BOG中泥炭地鸟类的生境选择:规模和年份的影响

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摘要

To determine habitat preferences of peatland birds in a central Maine bog, spot- mapping was conducted in 1994 and 1995 on an 8-ha grid. Each 0.25-ha unit of the grid was characterized by various measurements of tree density, shrub density, and topographic relief. Multiple regression was used to identify habitat variables that best explained variation in bird Occurrence. Contrary to expectation, the habitat selection of each species showed greater Concordance within years at the two different scales than within scales in different years.
机译:为了确定缅因州沼泽中泥炭地鸟类的栖息地偏好,1994年和1995年在8公顷的网格上进行了点测绘。网格的每个0.25公顷单位的特征在于对树木密度,灌木密度和地形起伏的各种测量。多元回归被用来确定最能解释鸟类发生变化的栖息地变量。与预期相反,两种物种在不同年份的生境选择在几年内显示出更大的一致性,而在不同年份则表现出更大的一致性。

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