Satellite telemetry reveals high-use internesting areas and international foraging extent for loggerhead turtles tagged in southeast Florida, USA

IF 2.6 2区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Endangered Species Research Pub Date : 2024-06-27 DOI:10.3354/esr01339
Glenn D. Goodwin, Kristen M. Hart, Abby C. Evans, Derek A. Burkholder
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Abstract

ABSTRACT: Developing conservation strategies for highly migratory marine species relies on understanding their spatial distributions. Nesting populations of female loggerhead (Caretta caretta) turtles typically travel from widely dispersed foraging areas and make use of common internesting areas between nesting events. Protection of these areas is essential to the conservation of this species. In this study, we used satellite tracking and behavioral switching state-space movement modeling to examine the internesting use-areas, migration patterns, and foraging area distribution of a previously uninvestigated nesting loggerhead population in southeast Florida. While these turtles spent much of their internesting period close to their nesting site, only 17.4% of the identified internesting area is within the boundaries currently designated under the US Endangered Species Act as critical loggerhead ‘nearshore reproductive habitat’. Additionally, 72% of turtles in this study (17 of 21) that were tracked to foraging grounds have foraging home ranges outside of the USA, with 62% of turtles (n = 13) in The Bahamas. Considering the proximity of their internesting areas to a large human population center and their largely international foraging distribution, this population could benefit from expanding federally designated critical habitat, along with developing collaborative conservation strategies between the USA and The Bahamas.
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卫星遥测揭示了美国佛罗里达州东南部被标记的蠵龟的高使用率间歇区和国际觅食范围
摘要:为高度洄游海洋物种制定保护策略有赖于对其空间分布的了解。雌性蠵龟(Caretta caretta)的筑巢种群通常从广泛分散的觅食区出发,并在筑巢活动之间利用共同的间歇筑巢区。保护这些区域对保护该物种至关重要。在这项研究中,我们利用卫星跟踪和行为切换状态空间运动模型,考察了佛罗里达东南部一个以前未调查过的蠵龟筑巢种群的间歇筑巢使用区域、迁移模式和觅食区域分布。虽然这些海龟的大部分间歇期都在筑巢地点附近度过,但只有 17.4% 的已确定间歇期区域位于美国濒危物种法案目前指定的蠵龟 "近岸生殖栖息地 "范围内。此外,本研究中被追踪到觅食地的海龟(21 只中的 17 只)有 72% 的觅食地不在美国,其中 62% 的海龟(n = 13 只)的觅食地在巴哈马群岛。考虑到这些海龟的内栖息地靠近一个大型的人类居住中心,而且它们的觅食分布主要在国际范围内,扩大联邦指定的重要栖息地,同时制定美国和巴哈马之间的合作保护战略,将使这一种群受益匪浅。
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来源期刊
Endangered Species Research
Endangered Species Research BIODIVERSITY CONSERVATION-
CiteScore
5.50
自引率
6.50%
发文量
38
审稿时长
31 weeks
期刊介绍: ESR is international and interdisciplinary. It covers all endangered forms of life on Earth, the threats faced by species and their habitats and the necessary steps that must be undertaken to ensure their conservation. ESR publishes high quality contributions reporting research on all species (and habitats) of conservation concern, whether they be classified as Near Threatened or Threatened (Endangered or Vulnerable) by the International Union for the Conservation of Nature and Natural Resources (IUCN) or highlighted as part of national or regional conservation strategies. Submissions on all aspects of conservation science are welcome.
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