Original paper

Is habitat requirement by an oxygen-dependent frog (Rana ridibunda) governed by its larval stage?

Plénet, S.; Joly, P.; Pagano, A.

Archiv für Hydrobiologie Volume 143 Number 1 (1998), p. 107 - 119

37 references

published: Sep 22, 1998

DOI: 10.1127/archiv-hydrobiol/143/1998/107

BibTeX file

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According to the literature and to our own experience, R. ridibunda is absent from ponds with occasionally low oxygen concentrations. We tested the effects of stochastically fluctuating oxygen concentration on tadpole survival and growth under laboratory conditions. Two experimental treatments (constant and fluctuating oxygen regimes) were arranged in a factorial design with three populations of R. ridibunda. Stochastic oxygen fluctuation with drops from normoxia to hypoxia did not clearly influence long-term survival (which remained high in all blocks) or growth and development. Only in one population did survival differ between oxygen treatments, and survival was greater under the fluctuating than under the stable oxygen conditions. One population differed from the others in exhibiting slight variations in morphology between treatments. But in no case did these laboratory experiments provide evidence that oxygen regime can affect development of R. ridibunda tadpoles and explain oxygen-dependent habitat use by this species.


frogoxygen-dependentRana ridibundalarval stage