Dynamic Horizontal Cultural Transmission of Humpback Whale Song at the Ocean Basin Scale
Dynamic Horizontal Cultural Transmission of Humpback Whale Song at the Ocean Basin Scale
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DOI：
10.1016/j.cub.2011.03.019
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发表时间：
2011-04-26
期刊：
影响因子：
9.2
通讯作者：
Noad, Michael J.
中科院分区：
文献类型：
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作者：
Garland, Ellen C.;Goldizen, Anne W.;Noad, Michael J.
文化传播，即对同种信息或行为的社会学习[1-5]，被认为发生在许多动物群体中，包括灵长类[1，6-9]，鲸类[4，10，11]和鸟类[3，12，13]。文化特征可以垂直传递（从父母到后代），间接传递（从上一代通过非父母模型传递给年轻个体），或水平传递（来自相似年龄段或代内的无关个体之间）[4]。雄性座头鲸（Megaptera novaeangliae）具有高度刻板，重复和逐步进化的声音性展示或“歌曲”[14-17]，其在性选择中发挥作用（通过配偶吸引和/或雄性社会分类）[18-20]。种群内的所有雄性都符合当前版本的显示（歌曲类型），并且在海洋盆地内的种群歌曲之间可能存在相似性[16，17，21]。在这里，我们提出了一个惊人的模式的水平传播：多种歌曲类型的传播迅速，反复在一个单向的方式，像文化涟漪，向东通过人口在西部和中部的南太平洋超过11年的时间。这是第一次记录在如此大的地理范围内发生在多个人群中的重复，动态的文化变化。
Cultural transmission, the social learning of information or behaviors from conspecifics [1-5], is believed to occur in a number of groups of animals, including primates [1, 6-9], cetaceans [4, 10, 11], and birds [3, 12, 13]. Cultural traits can be passed vertically (from parents to offspring), obliquely (from the previous generation via a nonparent model to younger individuals), or horizontally (between unrelated individuals from similar age classes or within generations) [4]. Male humpback whales (Megaptera novaeangliae) have a highly stereotyped, repetitive, and progressively evolving vocal sexual display or "song" [14-17] that functions in sexual selection (through mate attraction and/or male social sorting) [18-20]. All males within a population conform to the current version of the display (song type), and similarities may exist among the songs of populations within an ocean basin [16, 17, 21]. Here we present a striking pattern of horizontal transmission: multiple song types spread rapidly and repeatedly in a unidirectional manner, like cultural ripples, eastward through the populations in the western and central South Pacific over an 11-year period. This is the first documentation of a repeated, dynamic cultural change occurring across multiple populations at such a large geographic scale.