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首页> 外文期刊>Chelonian conservation and biology >Possible Effect of Global Climate Change on Caretta caretta (Testudines, Cheloniidae) Nesting Ecology at Guanahacabibes Peninsula, Cuba
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Possible Effect of Global Climate Change on Caretta caretta (Testudines, Cheloniidae) Nesting Ecology at Guanahacabibes Peninsula, Cuba

机译：全球气候变化可能对古巴瓜纳卡比比斯半岛Car螨（Testudines，Che科）的筑巢生态的影响

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摘要

Changing climate is affecting life all over the world. The loggerhead turtle (Caretta caretta) is one of the most vulnerable turtle species to climate change, particularly with regard to sex determination being affected by high temperatures in most nesting areas, such as the Cuban archipelago. As yet, species information is scarce for the Cuban archipelago as a whole. This study provides information about loggerheads in order to determine the possible effects of climate change on this species, especially in Guanahacabibes. We monitored 10 beaches along the southernmost coast of the Guanahacabibes Peninsula for 18 yrs (1998-2015), from May to September of each year, to determine nesting activity and density. Females were measured and tagged and the remigration interval was determined. Temporal variation was reflected in apparent peaks in reproductive activity on a biennial cycle. We found intraseasonal variation with the highest nesting activity in June, with a 15% increase in nesting activity in the second half of that month. Reduction in clutch size, incubation period, and hatchling size, as well as a potential feminization of hatchling production, indicates a possible effect of climate change in reproductive success. Our results are a first attempt at characterizing Guanahacabibes populations and have great value for establishing conservation priorities such as the protection of the nesting females and control of incubation environment in the face of global climate change within the context of national management plans.
机译：气候变化影响着世界各地的生活。 logger（Caretta caretta）是最容易受到气候变化影响的龟种之一，特别是在性别决定方面，大多数筑巢区（例如古巴群岛）的高温都对它们造成影响。迄今为止，整个古巴群岛尚缺乏物种信息。这项研究提供了有关的信息，以便确定气候变化对该物种的可能影响，特别是在瓜纳卡比比斯。从每年的5月到9月，我们监测了瓜纳卡比比斯半岛最南端海岸的10个海滩长达18年（1998-2015年），以确定筑巢活动和密度。测量雌性并加标签，确定移居间隔。时间变化反映在每两年一次的生殖活动的明显峰值上。我们发现6月份的季节内变化具有最高的嵌套活动，该月下半月嵌套活动增加了15％。离合器尺寸，孵化期和孵化尺寸的减小，以及孵化产量的潜在女性化，表明气候变化可能对繁殖成功产生影响。我们的结果是表征瓜纳卡比族种群的首次尝试，对于确立保护重点，例如在国家管理计划的背景下面对全球气候变化的情况下保护筑巢雌性和控制孵化环境具有重要价值。

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