Sex Differences in Patterns of Association Among Indian Ocean Bottlenose Dolphins
Sex Differences in Patterns of Association Among Indian Ocean Bottlenose Dolphins
复制标题
印度洋宽吻海豚交往模式的性别差异
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
J. Pepper
中科院分区：
文献类型：
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作者：
Rachel A. Smolker;A. Richards;R. Connor;J. Pepper
使用政党成员数据分析了居住在西澳大利亚鲨鱼湾的宽吻海豚之间的关联模式。政党平均有 4.8 人，但政党规模和构成不稳定。虽然这些临时聚会通常既有男性也有女性，但长期一致的联系通常是在同性成员之间。由于政党内非常频繁的共现而导致的最高关联系数出现在男性之间以及母亲和后代之间。雄性形成由两个或三个个体组成的亚群，这些个体始终保持联系，在某些情况下，这些亚群在至少七年的时间内保持稳定。男性亚群优先与特定的其他男性亚群相关。女性与其他女性的交往最为一致，尽管程度与某些男性不同。女性协会最好被描述为一个网络，而不是离散的亚组。男性与女性的关联通常不一致，部分取决于女性的生殖状态。母亲和她们的后代在至少四年的时间里一直保持着密切的联系。
Patterns of association among bottlenose dolphins resident in Shark Bay, Western Australia were analyzed using party membership data. Parties contained an average of 4.8 individuals, but party size and composition were unstable. While these temporary parties often contained both males and females, long term consistent associations generally were between members of the same sex. The highest association coefficients, resulting from very frequent co-occurrence within parties were between males and between mothers and offspring. Males formed subgroups of two or three individuals who consistently associated with each other, and these were stable over periods of at least seven years in some cases. Male subgroups preferentially associated with particular other male subgroups. Females associated most consistently with other females, although not to the same extent as some males. Female associations were better described as a network rather than discrete subgroups. Male-female associations were generally inconsistent and depended in part on female reproductive state. Mothers and their offspring associated very consistently for at least 4 years.