THE EFFECT OF PREY TYPE ON THE PREDATORY BEHAVIOR OF THE 15-SPINED STICKLEBACK, SPINACHIA-SPINACHIA (L)

被引:27
作者
KAISER, MJ
GIBSON, RN
HUGHES, RN
机构
[1] UNIV WALES, SCH BIOL SCI, FUNCT & EVOLUTIONARY BIOL GRP, BANGOR LL57 2UW, GWYNEDD, WALES
[2] DUNSTAFFNAGE MARINE LAB, OBAN PA34 4AD, ARGYLL, SCOTLAND
关键词
D O I
10.1016/S0003-3472(05)80080-6
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
The fifteen-spined stickleback, preying on the mysid, Neomysis integer, and the amphipod, Gammarus locusta, maximized its energy intake by adjusting its predatory behaviour to the prey being attacked. The escape speed of Neomysis placed an upper constraint on the size of the prey available to fish of a given size. The increase in importance of Neomysis in the natural diet of larger sticklebacks reflected size-dependent limitations of the fast-start performance in these fish. The escape speed of Gammarus did not limit its availability to the sticklebacks; the limiting factor for this prey was its cross-sectional area. The fish expended 20 times more energy attacking Neomysis than Gammarus, but Gammarus took up to 159 times longer to ingest. Neomysis always responded to an attack with a tail-flip, which usually resulted in movement at an angle of approximately 90° to the direction of attack. Although Gammarus occasionally used a tail-flip response, it was never used to escape a fish attack. Adoption of a stationary C-shape often deterred the fish from attacking Gammarus. © 1992 The Association for the Study of Animal Behaviour.
引用
收藏
页码:147 / 156
页数:10
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