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

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pdf 13. Emergence behaviour of yacare caimans (Caiman crocodilus yacare) in the Brazilian Pantanal


Open Access

pp. 91-94
Authors: Campos, Zilca & Magnusson, William E.

Abstract: We studied the emergence and basking behaviour of Pantanal caimans (Caiman crocodilus yacare) in relation to temperature. In the cold season, caimans were exposed to the sun, and air temperatures higher than water temperatures suggest that emergence behaviour may be due to thermoregulation. In the dry season, most (66%) emergent caimans were found in the shade between 1000 and 1500, and body temperatures rarely exceeded water temperatures. Caimans also emerged at night, although body temperatures were highly correlated (r=0.974, P<0.001) with water temperatures, suggesting that emergence is related to factors other than thermoregulation.


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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.