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

2020 Impact Factor for the Herpetological Journal is 0.862

pdf 03. Developmental arrest in Leptodactylus fascus tadpoles (Anura Leptodactylidae) II Does a foam borne factor block development


Open Access


Authors: J. R. Downie

Abstract: Several experiments were performed to test the hypothesis that foam made by hatched Leptodactylus fuscus tadpoles contains an inhibitor that maintains them in a state of developmental arrest. The results did not support the hypothesis. Tadpole-made foam did not inhibit the development of earlier stage L. fuscus, later stage L. fuscus or tadpoles of another species, Colostethus trinitatis, nor did removal from foam in itself release tadpoles from developmental arrest. Developmental arrest was found not to be obligate: tadpoles transferred to water at prearrest stages developed continuously through to later stages. Preliminary evidence suggested that transfer to water alone, irrespective of the presence of food, allowed tadpoles to bypass the arrest stage at least partially, possibly using their yolk reserves to continue development. The possibility that developmental arrest is mediated via Candida or Prototheca infection is briefly discussed.

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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.