DOI: 10.1111/gcb.12918
论文题名: Climate change overruns resilience conferred by temperature-dependent sex determination in sea turtles and threatens their survival
作者: Santidrián Tomillo P. ; Genovart M. ; Paladino F.V. ; Spotila J.R. ; Oro D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 8 起始页码: 2980
结束页码: 2988
语种: 英语
英文关键词: Adaptive significance
; Dermochelys coriacea
; Genotypic sex determination
; Global warming
; Leatherback turtles
; Sex ratios
; Temperature-dependent sex determination
Scopus关键词: adaptation
; climate change
; ecological impact
; ecosystem resilience
; global warming
; population genetics
; sex determination
; sex ratio
; survival
; temperature effect
; turtle
; Cheloniidae
; Dermochelyidae
; Dermochelys coriacea
; Reptilia
; Testudines
; acclimatization
; animal
; climate change
; female
; male
; physiology
; sex ratio
; temperature
; theoretical model
; turtle
; Acclimatization
; Animals
; Climate Change
; Female
; Male
; Models, Theoretical
; Sex Ratio
; Temperature
; Turtles
英文摘要: Temperature-dependent sex determination (TSD) is the predominant form of environmental sex determination (ESD) in reptiles, but the adaptive significance of TSD in this group remains unclear. Additionally, the viability of species with TSD may be compromised as climate gets warmer. We simulated population responses in a turtle with TSD to increasing nest temperatures and compared the results to those of a virtual population with genotypic sex determination (GSD) and fixed sex ratios. Then, we assessed the effectiveness of TSD as a mechanism to maintain populations under climate change scenarios. TSD populations were more resilient to increased nest temperatures and mitigated the negative effects of high temperatures by increasing production of female offspring and therefore, future fecundity. That buffered the negative effect of temperature on the population growth. TSD provides an evolutionary advantage to sea turtles. However, this mechanism was only effective over a range of temperatures and will become inefficient as temperatures rise to levels projected by current climate change models. Projected global warming threatens survival of sea turtles, and the IPCC high gas concentration scenario may result in extirpation of the studied population in 50 years. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61932
Appears in Collections: 影响、适应和脆弱性
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作者单位: Population Ecology Group, Institut Mediterrani d' Estudis Avançats, IMEDEA (CSIC-UIB), Miquel Marquès, 21, Esporles, Mallorca, Spain; The Leatherback Trust, Goldring-Gund Marine Biology Station, Playa Grande, Costa Rica; Department of Biology, Indiana-Purdue University, Fort Wayne, IN, United States; Department of Biodiversity, Earth and Environmental Science, Drexel University, Philadelphia, PA, United States
Recommended Citation:
Santidrián Tomillo P.,Genovart M.,Paladino F.V.,et al. Climate change overruns resilience conferred by temperature-dependent sex determination in sea turtles and threatens their survival[J]. Global Change Biology,2015-01-01,21(8)