期刊
ECOLOGICAL MODELLING
卷 473, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ecolmodel.2022.110119
关键词
Climate change; Phenotypic plasticity; Embryonic development; Growth rate; Ectotherm; Incubation; Turtle; Sex ratio
类别
资金
- National Save the Sea Turtle Foundation
- Nelligan Sea Turtle Research Support Fund
- Virtual Data initiative, run by LABEX P2IO
- Universite Paris-Saclay
Species with temperature-dependent sex determination (TSD) can experience biased sex ratios in natural conditions. This study introduces a novel concept called thermal reaction norm for sexualization to model the effect of temperature on sex determination in TSD species. The results show that temperature can influence the sexualization of the gonad earlier than previously recognized. The new approach greatly outperforms previous ones in sex ratio prediction.
Species with temperature-dependent sex determination (TSD) can experience biased sex ratios in natural conditions, which raises questions the vulnerability of populations in the face of climate change. Studies addressing the adaptive significance TSD have been hampered by the difficulty of accurately estimating sex ratios under natural incubation conditions. Here we introduce the thermal reaction norm for sexualization, a novel concept measuring the strength of masculinization or feminization of temperatures, to model the effect of temperature for sex determination in TSD species. We use hatchling sex ratio data and field incubation temperatures collected between 2002 and 2018 at a globally important loggerhead turtle (Caretta caretta) nesting rookery. The new parametrization makes possible the understanding of how temperature-sensitive sex determination works. We show that the temperature could influence the sexualization of the gonad earlier than what is currently recognized. Additionally, we explore the results of several easy to implement proxies that have been used in literature. Our approach greatly outperforms previous ones in sex ratio prediction. Our results should help further studies to refine population-wide primary sex ratio estimates of reptiles with TSD to adapt current conservation strategies and develop them in the future.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据