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首页> 外文期刊>The Wilson Bulletin >THE EFFECTS OF FARM FIELD BORDERS ON OVERWINTERING SPARROW DENSITIES
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THE EFFECTS OF FARM FIELD BORDERS ON OVERWINTERING SPARROW DENSITIES

机译:农田边界对越冬稀疏密度的影响

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摘要

Wintering birds that use farm fields may benefit from strips of uncultivated, grassy, and weedy vegetation, called field borders. Field borders were established on 4 farms in the North Carolina coastal plain in Wilson and Hyde counties in the spring of 1996. In February of 1997 and 1998, bird numbers on field edges and field interiors. With and without field borders, were surveyed using strip transect and line transect methods.
机译:使用农田的越冬鸟类可能会受益于未耕种,草皮和杂草的条带,称为田间边界。 1996年春季,在威尔逊和海德县北卡罗来纳州沿海平原的4个农场建立了田间边界。1997年2月和1998年,田间边缘和田间内部的鸟类数量增加。使用带状横断面和线状横断面方法对有无边界的情况进行了调查。

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