The impact of temperature-dependent sex determination on the population dynamics of green sea turtles (Chelonia mydas)

Candy Herrera; Evelyn Guerra; Victoria Penalver; Andrea Rosas; Yingying Wei; Jack Pringle; Baltazar Espinoza; Baojun Song

doi:10.21931/RB/2020.05.01.4

The impact of temperature-dependent sex determination on the population dynamics of green sea turtles (Chelonia mydas)

Candy Herrera, Evelyn Guerra, Victoria Penalver, Andrea Rosas, Yingying Wei, Jack Pringle, Baltazar Espinoza, Baojun Song

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The sex of the turtles is determined by the incubation temperature of the eggs during the mid-trimester of development. In green sea turtles (Chelonia mydas), recent studies show that sex ratios are changing, producing a female-biased sex ratio within the population. We developed a novel continuous model to analyze the dynamics of the green sea turtle population longterm. We determine the safe operating space for the proportion of eggs that become male at which the population of green sea turtle can exist without going to extinction. When the proportion of male eggs leaves this range the overall turtles' population collapses. Additionally, we examined how temperature changes affect the sex ratios of the green sea turtle population.

Original language	English
Pages (from-to)	1029-1038
Number of pages	10
Journal	Revista Bionatura
Volume	5
Issue number	1
DOIs	https://doi.org/10.21931/RB/2020.05.01.4
State	Published - 2020

Keywords

Green sea turtle
Population dynamics
Sex ratio
Temperature-dependent sex determination

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.21931/RB/2020.05.01.4

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AU - Herrera, Candy

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AU - Wei, Yingying

AU - Pringle, Jack

AU - Espinoza, Baltazar

AU - Song, Baojun

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The impact of temperature-dependent sex determination on the population dynamics of green sea turtles (Chelonia mydas)

Abstract

Keywords

UN SDGs

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