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Recent advances on the estimation of the thermal reaction norm for sex ratios.

Publication ,  Journal Article
Abreu-Grobois, FA; Morales-Mérida, BA; Hart, CE; Guillon, J-M; Godfrey, MH; Navarro, E; Girondot, M
Published in: PeerJ
January 2020

Temperature-dependent sex determination, or TSD, is a widespread phenomenon in reptiles. The shape of the relationship between constant incubation temperature and sex ratio defines the TSD pattern. The TSD pattern is considered a life-history parameter important for conservation because the wider the range of temperatures producing both sexes, the more resilient the species is to climate change impacts. We review the different published equations and methodologies that have been used to model TSD patterns. We describe a new flexible model that allows for an asymmetrical pattern around the pivotal temperature, which is the constant temperature producing both sexes in equal proportions. We show that Metropolis-Hastings with Markov chain produced by a Monte Carlo process has many advantages compared to maximum likelihood and is preferred. Finally, we apply the models to results from incubation experiments using eggs from the marine turtle Lepidochelys olivacea originating in Northeast Indian, East Pacific, and West Atlantic Regional Management Units (RMUs) and find large differences in pivotal temperatures but not in transitional ranges of temperatures.

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Published In

PeerJ

DOI

EISSN

2167-8359

ISSN

2167-8359

Publication Date

January 2020

Volume

8

Start / End Page

e8451

Related Subject Headings

  • 11 Medical and Health Sciences
  • 06 Biological Sciences
 

Citation

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ICMJE
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Abreu-Grobois, F. A., Morales-Mérida, B. A., Hart, C. E., Guillon, J.-M., Godfrey, M. H., Navarro, E., & Girondot, M. (2020). Recent advances on the estimation of the thermal reaction norm for sex ratios. PeerJ, 8, e8451. https://doi.org/10.7717/peerj.8451
Abreu-Grobois, F Alberto, B Alejandra Morales-Mérida, Catherine E. Hart, Jean-Michel Guillon, Matthew H. Godfrey, Erik Navarro, and Marc Girondot. “Recent advances on the estimation of the thermal reaction norm for sex ratios.PeerJ 8 (January 2020): e8451. https://doi.org/10.7717/peerj.8451.
Abreu-Grobois FA, Morales-Mérida BA, Hart CE, Guillon J-M, Godfrey MH, Navarro E, et al. Recent advances on the estimation of the thermal reaction norm for sex ratios. PeerJ. 2020 Jan;8:e8451.
Abreu-Grobois, F. Alberto, et al. “Recent advances on the estimation of the thermal reaction norm for sex ratios.PeerJ, vol. 8, Jan. 2020, p. e8451. Epmc, doi:10.7717/peerj.8451.
Abreu-Grobois FA, Morales-Mérida BA, Hart CE, Guillon J-M, Godfrey MH, Navarro E, Girondot M. Recent advances on the estimation of the thermal reaction norm for sex ratios. PeerJ. 2020 Jan;8:e8451.

Published In

PeerJ

DOI

EISSN

2167-8359

ISSN

2167-8359

Publication Date

January 2020

Volume

8

Start / End Page

e8451

Related Subject Headings

  • 11 Medical and Health Sciences
  • 06 Biological Sciences