ニホンヒキガエルBufo japonicus japonicusの自然誌的研究 : IV.変態後の成長と性成熟年令

概要

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Post-metamorphic growth of the Japanese toad, Bufo japonicus japonicus, inhabiting the Botanical Gardens of Kanazawa University, was as follows : 1st year growth after metamorposis was about 50 mm (from 8 to 60 mm) in snout-vent length ; 2nd year growth was about 30 mm (60-90 mm) ; 3rd year growth was about 15 mm (90-105 mm) ; and from the 4th to the 9th year growth was only 1-2 mm per one year. Maximum sizes of males and females were 134 and 135 mm in snout-vent length, respectively. Most of the males reached sexual maturity in the spring of the 3rd or 4th year after metamorposis, but some of them began to breed in the 2nd year. Sexual maturity of most of the females was reached at the 4th or 5th year after metamorphosis.
日本生態学会の論文
1984-12-30