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首页> 外文期刊>Chelonian conservation and biology >Natural Beach Vegetation Coverage and Type Influence the Nesting Habitat of Hawksbill Turtles (Eretmochelys imbricata) in Campeche, Mexico
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Natural Beach Vegetation Coverage and Type Influence the Nesting Habitat of Hawksbill Turtles (Eretmochelys imbricata) in Campeche, Mexico

机译：墨西哥坎佩切州的天然海滩植被覆盖度和类型影响Hawk的栖息地（Eretmochelys imbricata）

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摘要

The hawksbill turtle (Eretmochelys imbricata) is a critically endangered species with a global distribution and is broadly distributed along the Yucatan Peninsula in the Gulf of Mexico. To complete its life cycle, this species uses sandy beaches with particular environmental conditions that facilitate nesting and hatching. This study aimed to identify if beach physical characteristics influence biological reproductive parameters (hatching and emergence success). Nesting activity was monitored along 18 km of beach in the state of Campeche, Mexico, during 2014. Seventy-eight nests were recorded, 12 physical and environmental variables were measured in the nests and contiguous areas, and the hatching and emergence success of each nest was determined. Beach slope and width had no significant relationship to nest site selection. Nest depth and nest distance to highest tide and vegetation, including vegetation type, did influence hatching and emergence success. Herbaceous and bushy plants were positively correlated with reproductive parameters, highlighting the importance of preserving beach vegetation cover. This parameter was a central structural component of hawksbill nesting habitat, possibly because it influenced nest shading, preventing egg overheating and possible embryo death. Preservation and restoration of vegetation structure on hawksbill nesting beaches is clearly vital to enhancing the reproductive success of this species.
机译：turtle（Eretmochelys imbricata）是一种极度濒危的物种，全球分布，并在墨西哥湾的尤卡坦半岛广泛分布。为了完成其生命周期，该物种使用了具有特殊环境条件的沙滩，这些环境有利于筑巢和孵化。这项研究旨在确定海滩的物理特征是否影响生物繁殖参数（孵化和出苗成功）。 2014年，在墨西哥坎佩切州的18公里海滩上监控了筑巢活动。记录了78个巢，在巢和邻近区域测量了12个物理和环境变量，每个巢的孵化和出苗成功被确定。海滩的坡度和宽度与巢址选择没有显着关系。巢深和巢距最高潮汐和植被的距离（包括植被类型）确实会影响孵化和出苗成功。草本植物和灌木植物与生殖参数正相关，突出了保持海滩植被覆盖的重要性。该参数是巢栖息地的主要结构组成部分，可能是因为它影响了巢的阴影，防止了鸡蛋过热和可能的胚胎死亡。 nest巢海滩的植被结构的保存和恢复显然对增强该物种的繁殖成功至关重要。

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