The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

 ISSN 0268-0130

2021 Impact Factor from Clarivate for the Herpetological Journal is 1.194, an increase of 0.332 from 2020.

pdf 08. Pivotal temperature for green sea turtles, Chelonia mydas, nesting in Suriname


Open Access

pp. 55-61
Authors: Godfrey, Matthew H. & Mrosovsky, N.

Abstract: Sexual differentiation of green sea turtles is directed by incubation temperature. The constant incubation temperature that produces both sexes is known as the pivotal temperature, with warmer temperature producing more or all females and cooler temperatures producing more or all males. Here we present data on a laboratory experiment designed to evaluate the pivotal temperature of green turtles from Suriname. The best estimates for the pivotal temperature were 29.4 or 29.5 °C. These values are similar to a previous estimate of pivotal temperature from this green turtle population. When both datasets are combined, the pivotal temperature is estimated to be 29.2 or 29.3 °C. These values are within the range of limited information available from other green turtle populations. Nevertheless, more data from pivotal temperature experiments are needed for a greater understanding of how incubation temperature impacts local nesting populations.


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Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

Aligning with this change, it is now no longer possible to purchase a subscription that includes a print copy of the HJ.  All members who have existing HJ print subscriptions that remain active as at end June 2020 will receive the full four 2020 print editions.  New subscribers or renewals after this time will only have option to subscribe to the online only subscription package.  Subscription pricing has been amended to reflect the content changes.