What does this research mean for the field?

Male green sea turtles can still be produced under apparent female-producing climatic conditions due to spatial temperature heterogeneity, temporal autocorrelation of nest temperatures, and non-linear sensitivity to male-producing temperatures. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop and validate a predictive model that translates field-recorded nest temperatures into accurate hatchling sex ratios for green sea turtles under climate warming.

August 14, 2026Journal of Animal EcologyOpen Access

Male production in green sea turtles under a feminizing climate: A validated model of sex ratios with temperature‐dependent sex determination

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Authors

MGMarc GirondotCentre National de la Recherche Scientifique ETEmily TurlaFlorida Atlantic University KSKirsty ScottKing Abdullah University of Science and Technology

Discussion

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Implication

Model validation study demonstrates ongoing male green sea turtle production under warm conditions, suggesting beach temperature heterogeneity buffers against extreme climate feminization.

Key Points

To develop and validate a predictive model that translates field-recorded nest temperatures into accurate hatchling sex ratios for green sea turtles under climate warming.
Monitored high-resolution temperatures across 62 natural green sea turtle (Chelonia mydas) nests paired with validated sex ratios from 594 hatchlings.
Analyzed experimental data from 1,480 embryos incubated at constant temperatures across variable moisture levels using a Bayesian mixed-model framework.
Fitted and evaluated nine candidate field sex ratio models combining thermal reaction norms with sensitivity functions across the thermosensitive period (TSP).
Quantified natural beach spatial temperature heterogeneity with a median difference of 1.58°C (95% credible interval: 1.52–1.64°C).
Identified significant maternal or genetic variance in embryo thermal sensitivity among clutches, with no significant differences attributable to Regional Management Units.
Determined that the top-performing model captured ongoing male production in female-biased conditions driven by microclimate temperature heterogeneity, temporal autocorrelation, and non-linear thermal sensitivity.

Cite This Study

Girondot et al. (2026) studied this question.

synapsesocial.com/papers/6a7ec764b70b84ec8b913abd https://doi.org/10.1111/1365-2656.70334

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August 14, 2026Journal of Animal EcologyOpen Access

Male production in green sea turtles under a feminizing climate: A validated model of sex ratios with temperature‐dependent sex determination

View Full Paper

Ask AI

Bookmark

Authors

MGMarc GirondotCentre National de la Recherche Scientifique ETEmily TurlaFlorida Atlantic University KSKirsty ScottKing Abdullah University of Science and Technology

Discussion

Member takes

Implication

Model validation study demonstrates ongoing male green sea turtle production under warm conditions, suggesting beach temperature heterogeneity buffers against extreme climate feminization.

Key Points

To develop and validate a predictive model that translates field-recorded nest temperatures into accurate hatchling sex ratios for green sea turtles under climate warming.
Monitored high-resolution temperatures across 62 natural green sea turtle (Chelonia mydas) nests paired with validated sex ratios from 594 hatchlings.
Analyzed experimental data from 1,480 embryos incubated at constant temperatures across variable moisture levels using a Bayesian mixed-model framework.
Fitted and evaluated nine candidate field sex ratio models combining thermal reaction norms with sensitivity functions across the thermosensitive period (TSP).
Quantified natural beach spatial temperature heterogeneity with a median difference of 1.58°C (95% credible interval: 1.52–1.64°C).
Identified significant maternal or genetic variance in embryo thermal sensitivity among clutches, with no significant differences attributable to Regional Management Units.
Determined that the top-performing model captured ongoing male production in female-biased conditions driven by microclimate temperature heterogeneity, temporal autocorrelation, and non-linear thermal sensitivity.

Cite This Study

Girondot et al. (2026) studied this question.

synapsesocial.com/papers/6a7ec764b70b84ec8b913abd https://doi.org/10.1111/1365-2656.70334

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