Social and reproductive behavior of crabeater seals (Lobodon carcinophagus) during the austral spring
Social and reproductive behavior of crabeater seals (Lobodon carcinophagus) during the austral spring
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南方春季食蟹海豹（Lobodon carcinophagus）的社会和繁殖行为
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
R. Reichle
中科院分区：
文献类型：
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作者：
D. Siniff;I. Stirling;J. L. Bengston;R. Reichle
本文于1975年、1976年和1977年9月至11月对食蟹海豹（Lobodon carcinophagus）的社交和繁殖行为进行了研究。海豹被固定住，或者在头上套上一个帆布袋，然后贴上标签并测量。对遇到的所有海豹进行了行为观察。食蟹海豹被划分为3个群体：(1)家庭群体(2)配对群体(3)快速冰浓度群体。家庭小组由一只成年雌性，她的幼崽和一只成年雄性组成。在断奶后，雄性和雌性形成一对配偶，并在一起呆1至2周或直到交配。没有幼崽的成年雌性在发情期会有一只雄性加入，形成一对配偶。快冰集中，主要由性成熟的动物组成，从50到1000多只海豹和季节性冰持续存在的有人居住的海湾。对豹海豹（Hydrugra leptonyx）的捕食行为进行了研究，结果表明豹海豹对食蟹海豹有强烈的捕食行为。
The social and reproductive behaviors of crabeater seals (Lobodon carcinophagus) were studied from September through November, during 1975, 1976 and 1977. Seals were immobilized, or controlled with a canvas bag over the head, then tagged and measured. Behavioral observations were recorded on all seals encountered.Crabeater seals were classified into three groups: (1) family groups (2) mated pairs, and (3) fast ice concentrations. Family groups consisted of an adult female, her pup, and an adult male. After weaning, the male and female formed a mated pair, and remained together for 1 to 2 weeks or until copulation. Adult females without a pup were joined by a male as they came into estrus, forming the mated pair category. Fast ice concentrations, primarily composed of sexually immature animals ranged from 50 to over 1000 seals and inhabited bays where seasonal ice persisted.Data were obtained on the predatory behavior of leopard seals (Hydrugra leptonyx), which indicated intensive predation on crabeater pu...