The effects of culling on the Abbeystead and Mallowdale gullery.

1983/03/01 by S. Wanless, Sarah Wanless, D. R. Langslow
Environmental Science · #Ecology and Vegetation Dynamics Studies #Avian ecology and behavior

paper · pdf · doi:10.1080/00063658309476770

Abstract

Four annual culls had little effect on the size of the area occupied by the Abbeystead ,i;tillery, but overall nesting density was lowered substantially. The proportion of birds recruited to the breeding population each year was very variable. It seems that at least 30% of birds must be removed annually to hold colony size at the reduced level.

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