大堡礁绿海龟(Chelonia mydas)对互巢栖息地的利用

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/esr01340
Michelle Perez, Col Limpus, Takahiro Shimada, Saskia McDonald, Owen Coffee, Eve Hinchliffe, Mark Hamann
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引用次数: 0

摘要

摘要:了解绿海龟在筑巢季节对栖息地的利用情况,对于制定与绿海龟和支持绿海龟的生态系统有关的管理决策非常重要。尽管对迁移等模式进行了描述,但很少有研究调查筑巢间期的行为。本研究旨在描述和量化绿海龟在大堡礁北部雷恩岛两个筑巢季节的空间分布模式。卫星遥测数据用于分析绿海龟在2017年(n = 19)和2018年(n = 20)的筑巢间移动和模式。在这两个季节中,绿海龟的互巢期从51天到100天不等(76.33 ± 15.98天)。海龟个体的平均间歇筑巢面积在不同筑巢季节没有差异(2017 年:12.31 ± 13.22 平方公里,2018 年:12.01 ± 21.92 平方公里)。此外,已确定 39 只个体的样本量足以描述空间分布。约有一半被追踪的个体在整个产卵期都留在同一个珊瑚礁上(n = 19),一半则使用附近珊瑚礁上的栖息地(n = 20)。大多数海龟表现出对雷恩岛筑巢地点的忠诚(n = 37),它们在岛上产下所有的卵。不过,有 2 只海龟在筑巢间歇期分别旅行了 479 公里和 337 公里。因此,这项研究强调了绿海龟在间歇期使用的栖息地在哪里以及如何使用这些栖息地。因此,可以为管理策略和保护决策提供信息,以维持这些重要栖息地的活力。
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Inter-nesting habitat use by green turtles Chelonia mydas in the Great Barrier Reef
ABSTRACT: Understanding green turtle habitat use during the nesting season is important for informing management decisions relating to green turtles and ecosystems that support them. Despite patterns such as migration being described, few studies investigate behaviour during the inter-nesting period. This research aims to describe and quantify the spatial distribution patterns of green turtles during 2 nesting seasons on Raine Island in the northern Great Barrier Reef. Satellite telemetry data were used to analyse the inter-nesting movements and patterns of green turtles in 2017 (n = 19) and 2018 (n = 20). The inter-nesting period ranged from 51 to 100 d (76.33 ± 15.98 d) across both seasons. The average inter-nesting area of individual turtles did not differ between nesting seasons (2017: 12.31 ± 13.22 km2, 2018: 12.01 ± 21.92 km2). In addition, it was established that 39 individuals are a sufficient sample size to describe the spatial distribution. Approximately half of the tracked individuals remained at the same reef for their entire inter-nesting season (n = 19), and half used habitat on nearby reefs (n = 20). Most turtles showed fidelity to Raine Island as a nesting site (n = 37), laying all their clutches on the island. However, 2 individuals travelled 479 and 337 km during the inter-nesting period. This study thus highlights where the habitats used by green turtles during the inter-nesting season are and how they are used. Therefore, management strategies and conservation decisions can be informed to maintain the viability of these essential habitats.
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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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