Surface behavior of bottlenose dolphins is related to spatial arrangement of prey

被引：32
作者：
Acevedo-Gutiérrez, A [1 ]
Parker, N
机构：
[1] Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA
[2] Dept Conservat, Nelson, New Zealand
来源：
MARINE MAMMAL SCIENCE | 2000年 / 16卷 / 02期
关键词：
feeding; prey location; Tursiops truncatus; bottlenose dolphins; behavior;
D O I：
10.1111/j.1748-7692.2000.tb00925.x
中图分类号：
Q17 [水生生物学];
学科分类号：
071004 ;
摘要：
We tested the hypothesis that spatial arrangement and movements of bottlenose dolphins (Tursiops truncatus) are related to the spatial arrangement of their prey. From 65 groups we: (1) classified feeding behavior of dolphins according to spatial arrangement and movements of individuals; (2) assessed spatial arrangement and location of prey from direct observations, numbers of associated seabirds, and echosounder recordings; and (3) related feeding behavior of dolphins to spacial arrangement and location of prey. Four feeding categories were defined from cluster and principal component analyses: (1) moving rapidly with no diving, (2) milling with no diving, (3) diving in several locations, and (4) diving in one location. These feeding categories were related to spatial arrangement and location of prey.
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收藏
页码：287 / 298
页数：12
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