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 05. Tadpole species richness within lentic and lotic microhabitats: an interactive influence of environmental and spatial factors

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Open Access

pp. 339-345

Authors: Lilian Sayuri Ouchi de Melo, Thiago Gonçalves-Souza, Michel Varajão Garey & Denise de
Cerqueira

Abstract: Anurans inhabiting lentic and lotic water bodies show distinct responses to environmental and spatial variables due to dispersal
by adults and microhabitat selection by tadpoles, which creates a hierarchical structure in these metacommunities. Aiming to
understand the influence of tadpole microhabitat selection and adult dispersal on species richness distribution, we tested the
influence of microhabitat environmental variables and habitat spatial variables on tadpole richness in lentic and lotic water
bodies located in the Atlantic Rainforest. We sampled tadpoles in 99 lentic microhabitats and 288 lotic microhabitats for
seven months. We performed a Hierarchical Partitioning Analysis to test the influence of environmental and spatial variables.
The percentage of aquatic vegetation within microhabitats and the main spatial gradient (dbMEM1) affected species richness
in lentic water bodies. Sand percentage, aquatic vegetation, and depth in the microhabitat and small-scale spatial gradient
(dbMEM4) affected species richness in lotic water bodies. Spatial processes indicate an influence of adult dispersal limitation
in search of reproductive habitats. The influence of microhabitat variables was mostly related to the amount of aquatic
vegetation, indicating the influence of environmental processes on the larval phase of anuran life cycle. In conclusion, both
environmental and spatial processes are driving the species richness in microhabitats inside lentic and lotic water bodies in
the Atlantic Rainforest.

Keywords: Amphibians; biodiversity hotspot; microhabitat; species number; Tropical Rainforest

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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.   

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