气候变化领域集成服务门户(CCPortal): Factors regulating incubation temperature and thermal stress in hawksbills in St. Croix, USVI

CCPortal

DOI	10.3354/esr01303
	Factors regulating incubation temperature and thermal stress in hawksbills in St. Croix, USVI
	Lyons, Erin; D'Alessandro, Evan; Shivlani, Manoj; Pollock, Clayton; Ewen, Kristen
发表日期	2024
ISSN	1863-5407
EISSN	1613-4796
起始页码	53
卷号	53
英文摘要	The hawksbill sea turtle is listed as Critically Endangered under the IUCN Red List and has been slow to recover in the Caribbean due to historical exploitation and ongoing anthropogenic threats. In turtles, sex and reproductive success are determined by incubation temperatures, whereby lower temperatures produce male hatchlings and higher temperatures produce female hatchlings. As incubation temperatures increase due to climate change, nests are predicted to produce predominantly female hatchlings, threatening sex ratios, reproductive success, and species persistence. One of the largest remaining nesting hawksbill populations within the USA nests on Buck Island. This study aimed to (1) assess the factors driving incubation temperatures and (2) identify the relationship between hatch success and the proportion of time exposed to increasing incubation temperatures. Nest incubation temperatures, beach sector, habitat type, deposition month, percent soil composition, hatch success, and emergence success data were collected from 2019 to 2021. Differences in incubation temperatures across these factors confirmed that the absence of vegetative cover is increasing incubation temperatures on Buck Island, leading to reduced hatchling survival. Results from this study indicate that declines in hatch success may be driven by long-term exposure to temperatures that were previously considered in the literature to be non-lethal to embryos. These findings emphasize the continued need for conservation interventions to protect the future of hawksbills.
英文关键词	Hawksbill; Thermal stress; Climate change; Embryonic mortality
语种	英语
WOS研究方向	Biodiversity & Conservation
WOS类目	Biodiversity Conservation
WOS记录号	WOS:001217046600017
来源期刊	ENDANGERED SPECIES RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/309670
作者单位	University of Miami; United States Department of the Interior; United States Department of the Interior
推荐引用方式 GB/T 7714	Lyons, Erin,D'Alessandro, Evan,Shivlani, Manoj,et al. Factors regulating incubation temperature and thermal stress in hawksbills in St. Croix, USVI[J],2024,53.
APA	Lyons, Erin,D'Alessandro, Evan,Shivlani, Manoj,Pollock, Clayton,&Ewen, Kristen.(2024).Factors regulating incubation temperature and thermal stress in hawksbills in St. Croix, USVI.ENDANGERED SPECIES RESEARCH,53.
MLA	Lyons, Erin,et al."Factors regulating incubation temperature and thermal stress in hawksbills in St. Croix, USVI".ENDANGERED SPECIES RESEARCH 53(2024).