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Identification of marine key areas across the Caribbean to ensure the conservation of the critically endangered hawksbill turtle
Biological Conservation ( IF 4.9 ) Pub Date : 2018-07-01 , DOI: 10.1016/j.biocon.2018.05.002
Manon Nivière , Philippine Chambault , Thierry Pérez , Denis Etienne , Marc Bonola , Jordan Martin , Cyrille Barnérias , Fabien Védie , Julien Mailles , Émilie Dumont-Dayot , Julie Gresser , Gaëlle Hiélard , Sidney Régis , Nicolas Lecerf , Laurent Thieulle , Matthieu Duru , Fabien Lefebvre , Guillaume Milet , Blandine Guillemot , Bernard Bildan , Benjamin de Montgolfier , Abdelwahab Benhalilou , Céline Murgale , Thomas Maillet , Patrick Queneherve , Thierry Woignier , Morjane Safi , Yvon Le Maho , Odile Petit , Damien Chevallier

Abstract Acquisition of data on animal movement when developing management strategies is a common challenge in species conservation, especially when dealing with a critically endangered species as the hawksbill turtle Eretmochelys imbricata. To reach the objective of the 2008 national action plan for Martinique Island (French West Indies), the present paper examines horizontal and vertical movements in juveniles (n = 3) and adults life stages (11 females and 2 males) of 16 hawksbill turtles. Our results reveal the strong site fidelity of individuals to their foraging grounds (mean male foraging home range: 89.3 ± 20.2 km2, mean female foraging home range: 336 ± 284.7 km2, mean juvenile foraging home range: 157.3 ± 71.2 km2) and to the females' inter-nesting areas (mean home range: 284.2 ± 523.7 km2). A spatial foraging overlap occurred between juveniles and males as they shared 41% of their 95% kernel foraging habitat. The turtles performed mainly long and shallow dives within the first 20 m deep around Martinique Island, occupying shallow waters close to shore. The migratory routes of the adult females revealed regional connectivity between the Caribbean islands, crossing 31 exclusive economic zones and international waters, and featuring distinct foraging grounds. This finding reinforces the significance of a cooperative network at the Caribbean scale to ensure the efficient conservation of this critically endangered species.

中文翻译:

确定整个加勒比地区的海洋关键区域,以确保保护极度濒危的玳瑁

摘要 在制定管理策略时获取动物运动数据是物种保护中的一个常见挑战,尤其是在处理像玳瑁龟这样的极度濒危物种时。为实现 2008 年马提尼克岛(法属西印度群岛)国家行动计划的目标,本文研究了 16 只玳瑁龟的幼龟(n = 3)和成年龟(11 只雌性和 2 只雄性)的水平和垂直运动。我们的结果揭示了个体对其觅食地(平均雄性觅食家园范围:89.3 ± 20.2 平方公里,平均雌性觅食家园范围:336 ± 284.7 平方公里,平均幼年觅食家园范围:157.3 ± 71.2 平方公里)和雌性的筑巢区(平均家庭范围:284.2 ± 523.7 平方公里)。幼鱼和雄鱼之间存在空间觅食重叠,因为它们共享 95% 的核觅食栖息地的 41%。海龟主要在马提尼克岛周围的前 20 m 深度内进行长而浅的潜水,占据靠近海岸的浅水区。成年雌性的迁徙路线揭示了加勒比岛屿之间的区域连通性,跨越 31 个专属经济区和国际水域,并具有独特的觅食地。这一发现加强了加勒比地区合作网络的重要性,以确保有效保护这种极度濒危物种。占据靠近海岸的浅水区。成年雌性的迁徙路线揭示了加勒比岛屿之间的区域连通性,跨越 31 个专属经济区和国际水域,并具有独特的觅食地。这一发现加强了加勒比地区合作网络的重要性,以确保有效保护这种极度濒危物种。占据靠近海岸的浅水区。成年雌性的迁徙路线揭示了加勒比岛屿之间的区域连通性,跨越 31 个专属经济区和国际水域,并具有独特的觅食地。这一发现加强了加勒比地区合作网络的重要性,以确保有效保护这种极度濒危物种。
更新日期:2018-07-01
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