Abstract
AbstractAge structure of populations of four species of endemic Malagasy frogs of the genus Mantella (M. aurantiaca, M. baroni, M. bernhardi, M. madagascariensis) was examined by skeletochronology based on 96 specimens from nine different localities. In more than half of these (57%), no lines of arrested growth (LAGs) were found, and the number of LAGs recognized in the remaining specimens was mostly one, and probably two in three specimens. It is generally considered that each LAG corresponds to one year of life; our results therefore confirm that in Mantella populations almost all specimens are in their first or second year of life.
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