Songs indicate interaction between humpback whale (Megaptera novaeangliae) populations in the western and eastern South Atlantic Ocean
Songs indicate interaction between humpback whale (Megaptera novaeangliae) populations in the western and eastern South Atlantic Ocean
复制标题
DOI：
10.1111/j.1748-7692.2005.tb01249.x
复制
发表时间：
2005-07-01
影响因子：
2.3
通讯作者：
Sousa-Lima, RS
中科院分区：
文献类型：
--
作者：
Darling, JD;Sousa-Lima, RS
本研究的目的是调查的关系，座头鲸（Megaptera novaeangliae）种群离开加蓬和巴西通过歌曲比较。座头鲸歌唱行为的特点，特别是复杂歌曲的组成不断变化，但在繁殖区的所有歌手在任何一个时间都唱非常相似的歌曲，允许间接测试季节性隔离的种群是否在声学上接触（Payne和McVay 1971，Winn等1981，Payne等1983，Payne和Guinee 1983，Payne和Payne 1985，Noad等2000，Cerchio等2001）。我们的工作假设是，不同的座头鲸种群唱同一版本的不断演变的歌曲必须有一些声学重叠在他们的年度周期。加蓬洛佩斯角地区歌曲的初步比较（08409 S，88309 E）和巴西东北部的Abrolhos群岛（188 S，398409 W），相隔5,500多公里，揭示了惊人的相似之处，并强烈表明，这些主要繁殖区的鲸鱼在一年中的某个时候会进行某种形式的接触。巴西座头鲸的数量是分布于沿着约58至248南（Zerbini等人，2004年）。1偶尔的近海目击远至费尔南多-迪诺罗尼亚群岛（38519 S），南至特林达德和马丁斯-瓦兹（208309 S）（Lodi 1994）。1最近的观察表明，座头鲸在巴西的产犊场在南纬58度至208度之间（Zerbini等人，2004年）。在Abrolhos银行（168409- 198309 S，378259- 398459 W）发现个体密度最高，新生小牛群体百分比最高。鲸鱼从5月到12月占据这一地区，在8月下旬和9月上旬达到高峰（Siciliano 1997年，Martins等人2001年，Morete等人2003年，Zerbini等人2004年）。最近的人口估计表明，在越冬地，
The purpose of this study was to investigate the relationship of humpback whale (Megaptera novaeangliae) populations off Gabon and Brazil through song comparisons. The characteristics of humpback whale singing behavior, specifically that the composition of the complex song continuously changes yet all the singers in a breeding area sing very similar songs at any one time, allow an indirect test of whether seasonally isolated populations are in acoustic contact (Payne and McVay 1971, Winn et al. 1981, Payne et al. 1983, Payne and Guinee 1983, Payne and Payne 1985, Noad et al. 2000, Cerchio et al. 2001). Our working assumption is that, for different humpback whale populations to sing the same version of a continually evolving song there must be some acoustic overlap in their annual cycles. A preliminary comparison of songs from the Cape Lopez region of Gabon (08409S, 88309E) and the Abrolhos Archipelago off northeastern Brazil (188S, 398409W), separated by more than 5,500 km, revealed striking similarities and strongly suggests that whales from these major breeding areas come into some form of contact at some time during the year.The Brazilian humpback whale population is distributed along the coast of the country from approximately 58 to 248S (Zerbini et al. 2004). 1 Occasional offshore sightings go as far North as the Archipelago of Fernando de Noronha (38519S) and as South as Trindade and Martins Vaz (208309S)(Lodi 1994). 1 Recent observations indicate that humpback whale calving grounds in Brazil range between 58 and 208S (Zerbini et al. 2004). The highest densities of individuals, as well as the highest percentage of groups with newborn calves are found on the Abrolhos Bank (168409–198309S, 378259–398459W). The whales occupy this region from May to December with peak abundance between late August and early September (Siciliano 1997, Martins et al. 2001, Morete et al. 2003, Zerbini et al. 2004). Recent population estimates suggest upwards of 3,200 individuals in the wintering grounds, the