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.

The 2017/18  impact factor of The Herpetological Journal is 1.268

ISSN 0268-0130


pdf 02. Structure of wetland-breeding anuran assemblages from the southern section of the Paraná river, Argentina

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pp. 173-184
Authors: Sanchez, Laura C.; Peltzer, Paola M. & Lajmanovich, Rafael C.

Abstract: Knowledge of anuran reproduction is necessary to understand the organization of their communities and is a first step in developing management strategies in order to conserve amphibian diversity. We studied the reproduction of anuran species in a wetland reserve – Pre-Delta National Park (PDNP) – on the southern section of the Paraná river in the mideast of Argentina, examining its structure at temporal and spatial levels. We also analysed the influence of environmental factors on breeding activities at habitat and landscape levels. Six waterbodies in the PDNP were monitored from September 2005 to March 2006. Five habitat variables (maximum pond width and length, maximum depth, shore vegetation and presence of predators) and three landscape variables (monthly air temperature, river level and rainfall) were recorded every month and analysed through multivariate analysis. Principal coordinate analysis (PCoA) indicated the existence of four breeding periods. The most frequent breeding call location was the edge of a pond (56.8%), over floating and marsh plants. The presence of tadpole predators and pond width were the main habitat variables that influenced breeding activities. In addition, the number of species with calling males per month was positively correlated with the level of the river which supplies water to ponds. Breeding anuran species co-occurred less often than expected by chance, and exhibited breeding segregation at temporal and spatial scales. The diverse evidence regarding temporal and spatial breeding activities demonstrates the importance of segregation for anuran reproduction in the area studied. We suggest that the nature of breeding interactions can be affected by habitat preference and reproductive strategy, as well as by abiotic (e.g. pond width), biotic (e.g. predators) and landscape (e.g. hydrological variation) variables.

Keywords: REPRODUCTION, PRE-DELTA NATIONAL PARK, HABITAT USE, AMPHIBIANS, CO-OCCURRENCE

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IMPORTANT NOTE - JUNE 2020

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.