Abstract
IN 19341 and 19352, as a result of field observations and a statistical investigation of variation in the spawning date of the common frog, Rana temporaria, I showed that the observed relations were very unlike what would be expected if the weather were acting directly on the frogs, and suggested that the weather acted on the algae of the ponds. In 19613 a more extensive investigation lent support to this conclusion.
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SAVAGE, R. External Stimulus for the Natural Spawning of Xenopus laevis. Nature 205, 618–619 (1965). https://doi.org/10.1038/205618a0
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DOI: https://doi.org/10.1038/205618a0
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