Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Individual study: Selective culling of predatory gulls Larus spp. to enhance the breeding success of common terns Sterna hirundo at Carelton on the Gaspé Peninsula, Quebec, Canada

Published source details

Guillemette M. & Brousseau P. (2001) Does culling of predatory gulls enhance the productivity of breeding common terns? Journal of Applied Ecology, 38, 1-8

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Control predators not on islands for seabirds Bird Conservation

A before-and-after study at a common tern Sterna hirundo colony in eastern Canada (Guillemette & Brousseau 2001) found that fledging success was higher in 1994 when chick-predating gulls (four herring gulls Larus argentatus and one great black-backed gull Larus marinus) were selectively shot, compared with 1993 and 1995, when no gulls were culled (16% of 115 eggs fledged vs. no chicks fledging from 165 eggs).