Social preferences of juvenile lemon sharks, Negaprion brevirostris
Social preferences of juvenile lemon sharks, Negaprion brevirostris
复制标题
DOI：
10.1016/j.anbehav.2009.06.009
复制
发表时间：
2009-08-01
期刊：
影响因子：
2.5
通讯作者：
Krause, J.
中科院分区：
文献类型：
--
作者：
Guttridge, T. L.;Gruber, S. H.;Krause, J.
鲨鱼群居是一种普遍的现象，但人们对这些群居的组成和组织知之甚少。在二元选择野外实验中，柠檬鲨幼崽被同种物种吸引，大概是为了形成群体。调查大小分类偏好的实验表明，2-3岁(而不是0-1岁)的柠檬鲨比不匹配的个体更喜欢花更多的时间和一群大小匹配的个体在一起。此外，在物种关联测试中，柠檬鲨与同种异种的共生物种联系的时间明显多于同域异种护士鲨--卷叶绞股蓝。这些发现加强了我们对鲨鱼群体加入决策的了解，表明主动机制可以在鲨鱼群体的形成和组成中发挥作用。(C)2009年，动物行为研究协会。爱思唯尔有限公司出版。保留所有权利。
Group living in sharks is a widespread phenomenon but relatively little is known about the composition and organization of these groups. In binary choice field experiments juvenile lemon sharks were attracted to conspecifics presumably to form groups. Experiments investigating size assortment preferences indicated that lemon sharks aged 2-3 years (but not 0-1 years) preferred to spend more time with a group of size-matched individuals than unmatched ones. Furthermore, in species association tests lemon sharks spent significantly more time associating with conspecifics than with a sympatric heterospecific, the nurse shark, Ginglymostoma cirratum. These findings enhance our knowledge of group joining decisions in sharks indicating that active mechanisms can play a role in the formation and composition of shark groups. (C) 2009 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.