Nocturnal predation on Common Terns by Great Black-backed Gulls

被引:7
|
作者
Nocera, JJ [1 ]
Kress, SW [1 ]
机构
[1] CENT CONNECTICUT STATE UNIV,DEPT BIOL SCI,NEW BRITAIN,CT 06050
来源
COLONIAL WATERBIRDS | 1996年 / 19卷 / 02期
关键词
Common Tern; Sterna hirundo; foraging time; Great Black-backed Gull; Larus marinus; Maine; nocturnal predation; Stratton Island;
D O I
10.2307/1521872
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
We observed nocturnal predation by Great Black-backed Gulls (Larus marinus) on eggs and chicks of Common Terns (Sterna hirundo) at a restored tern colony on the coast of southern Maine. Dissection of a nocturnal predatory gull in 1994 revealed two 7d old chicks, 3 embryonic chicks and 5 eggs. Further observations implicating nocturnal predation by gulls on tern eggs in 1995 confirmed that Great Black-backed Gulls can raid tern nesting colonies during moderate to low nocturnal light conditions.
引用
收藏
页码:277 / 279
页数:3
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