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首页> 外文期刊>Conservation Biology >Predicting the impact of sea-level rise on Caribbean sea turtle nesting habitat
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Predicting the impact of sea-level rise on Caribbean sea turtle nesting habitat

机译：预测海平面上升对加勒比海龟筑巢栖息地的影响

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摘要

The projected rise in sea level is likely to increase the vulnerability of coastal zones in the Caribbean, which are already under pressure from a combination of anthropogenic activities and natural processes. One of the major effects will be a loss of beach habitat, which provides nesting sites for endangered sea turtles. To assess the potential impacts of sea-level rise on sea turtle nesting habitat, we used beach profile measurements of turtle nesting beaches on Bonaire, Netherlands Antilles, to develop elevation models of individual beaches in a geographic information system. These models were then used to quantify areas of beach vulnerable to three different scenarios of a rise in sea level. Physical characteristics of the beaches were also recorded and related to beach vulnerability, flooding, and nesting frequency. Beaches varied in physical characteristics and therefore in their vulnerability to flooding. Up to 32% of the total current beach area could be lost with a 0.5-m rise in sea level, with lower, narrower beaches being the most vulnerable. Vulnerability varied with land use adjacent to the beach. These predictions about loss of nesting habitat have important implications for turtle populations in the region.
机译：预计的海平面上升可能会增加加勒比沿海地区的脆弱性，这些地区已经受到人为活动和自然过程的双重压力。主要影响之一将是海滩栖息地的丧失，这为濒临灭绝的海龟提供了筑巢的场所。为了评估海平面上升对海龟筑巢栖息地的潜在影响，我们使用荷属安的列斯博内尔岛海龟筑巢海滩的海滩剖面测量，在地理信息系统中开发各个海滩的海拔模型。然后，这些模型被用来量化易受海平面上升三种不同情况影响的海滩面积。还记录了海滩的物理特征，并与海滩的脆弱性，洪水和筑巢频率有关。海滩的物理特征各不相同，因此容易遭受洪水侵袭。当海平面上升0.5米时，多达32％的现有海滩面积可能会流失，而较低，较窄的海滩是最脆弱的海滩。脆弱性随海滩附近土地的使用而变化。这些关于筑巢栖息地丧失的预测对该地区的海龟种群具有重要意义。

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