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首页> 外文期刊>Endangered species research >Flipper tagging with archival data recorders for short-term assessment of diving in nesting female turtles
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Flipper tagging with archival data recorders for short-term assessment of diving in nesting female turtles

机译:带有档案数据记录器的鳍式标签,用于短期评估筑巢雌龟的潜水情况

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摘要

ABSTRACT: Archival data recorders (ADRs) were deployed on nesting female leatherback turtles Dermochelys coriacea to record short-term diving behavior. Plastic cattle ear tags were used as a platform to which an archival depth recorder was attached. The tags were applied to the hind flippers of 10 turtles, ranging from 141.9 to 160.6 cm in curved carapace length at Sandy Point National Wildlife Refuge, St. Croix, US Virgin Islands. We later retrieved 7 of the original 10 tags at the beach; durations of deployment ranged from 22 to 90 h. The recorded number of dives per deployment ranged from 118 to 310. Maximum dive depths ranged from 175.6 to 479.7 m (mean 275.4, SE 41.7, n = 7), and maximum dive durations ranged from 16.3 to 27.8 min (mean 21.3, SE = 1.5, n = 7). Dive data indicated that post-nesting females dove deeper, less frequently, and longer than pre-nesting females—depth: mean post 78.6 m, 95% CI (56.0, 101.2) versus mean pre 45.4 m, 95% CI (37.1, 53.8); frequency: mean post 2.4 dives h–1, 95% CI (1.8, 2.9) versus mean pre 5.4 dives h–1, 95% CI (5.0, 5.8); duration: mean post 13.1 min, 95% CI (11.2, 15.1) versus mean pre 6.1 min, 95% CI (5.5, 6.6). A pre-nesting female was defined as one that attempted to nest but returned to the sea without laying eggs. This ADR deployment method provides a simpler and less intrusive alternative to other tag attachment methods, such as harness and tethers, when the research questions require only short deployment time of archival recorders.
机译:摘要:将档案数据记录器(ADR)部署在雌性棱皮海龟 Dermochelys coriacea 上,以记录其短期潜水行为。塑料牛耳标用作连接档案深度记录器的平台。该标签被贴在美国维尔京群岛圣克鲁斯桑迪角国家野生动物保护区的10只海龟的后脚蹼上,弯曲甲壳的长度在141.9至160.6厘米之间。后来,我们在海滩上检索了原始10个标签中的7个;部署持续时间从22到90小时不等。记录的每次部署潜水次数为118至310。最大潜水深度范围为175.6至479.7 m(平均275.4,SE 41.7,n = 7),最大潜水持续时间范围为16.3至27.8 min(平均21.3,SE = 1.5,n = 7)。潜水数据表明,巢后雌性的鸽子比巢前雌性的鸽子更深,频率更低,更长—深度:平均值 78.6 m,95%CI(56.0,101.2)vs均值 45.4 m,95%CI(37.1,53.8);频率:均值 2.4次潜水h –1 ,95%CI(1.8,2.9)与均值 pre 5.4次潜水h –1 ,95%CI(5.0,5.8);持续时间:平均值 13.1分钟,95%CI(11.2,15.1)与平均值 6.1分钟,95%CI(5.5,6.6)。巢前的雌性被定义为试图筑巢但不产卵就返回海中的雌性。当研究问题只需要档案记录器的短部署时间时,这种ADR部署方法就可以提供比其他标签附着方法(例如,安全带和系绳)更简单,干扰更少的替代方案。

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