Use of photo-identification data to quantify mother-calf association patterns in bottlenose dolphins
Use of photo-identification data to quantify mother-calf association patterns in bottlenose dolphins
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DOI：
10.1139/z03-132
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发表时间：
2003-08-01
影响因子：
1.4
通讯作者：
Thompson, PM
中科院分区：
文献类型：
--
作者：
Grellier, K;Hammond, PS;Thompson, PM
对于生活在裂变-融合社会中的社会性哺乳动物来说，母婴关系是长期的，并且超过了哺乳期。我们成功地开发了一种技术，使用照片识别数据，量化的一个小种群的海豚，Tursiops truncatus，苏格兰东部的母子协会模式。通过统计学比较年轻的小牛和他们的同事之间的关联指数，我们分配了17个单独的成年人作为母亲的20个年轻的小牛与5%的概率水平。小牛和母亲之间的平均关联指数一直很高，直到至少8年的生活。虽然小牛仍然和它们的母亲在同一所学校，但随着年龄的增长，它们出现在母亲身边的次数越来越少。这是第一次对栖息在温带沃茨的海豚种群的母子关系进行定量评估。结果进行了比较，从亚热带人群和讨论相对于这个人口的生存能力。
For social mammals living in fission-fusion societies, the mother-infant bond is long and extends beyond the nursing period. We successfully developed a technique, using photo-identification data, to quantify mother-calf association patterns in a small population of bottlenose dolphins, Tursiops truncatus, off eastern Scotland. By statistically comparing association indices between young calves and their associates we assigned 17 individual adults as mothers to 20 young calves with a 5% level of probability. The mean index of association between calves and mothers remained high until at least year 8 of life. While calves were still found in the same schools as their mother, they surfaced beside her less often as their age increased. This is the first time that the mother-calf bond has been quantitatively assessed for any bottlenose dolphin population inhabiting temperate waters. Results are compared with those from subtropical populations and are discussed with respect to the viability of this population.