Growth and Reproduction of Gekko hokouensis (Reptilia: Squamata) on Okinawajima Island of the Ryukyu Archipelago, Japan
Growth and Reproduction of Gekko hokouensis (Reptilia: Squamata) on Okinawajima Island of the Ryukyu Archipelago, Japan
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日本琉球群岛冲绳岛的 Hokouensis（爬行动物：有鳞）的生长和繁殖
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
H. Ota
中科院分区：
文献类型：
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作者：
S. Okada;M. Izawa;H. Ota
摘要1990-1992年，对琉球群岛冲绳本岛南部的北口壁虎种群进行了标记和再捕获研究。还对该岛中部的389个保存标本的性腺状态进行了检查。结果表明，该物种的繁殖从4月至8月，女性可能会产卵一次以上，在一个繁殖季节。幼鱼出现在7月至11月，孵化的幼鱼虽然在秋季有所增长，但在冬季几乎没有增长。它们的生长速度在第二年春季和夏季急剧增加。虽然一些孵化成长到最小的成熟尺寸（43毫米的口鼻通风长度在两性）的下一个繁殖季节结束时，其他人需要第二年达到成熟。青少年的生长没有性别差异。然而，达到成熟后，女性的增长速度显着大于男性。这似乎可以解释女性的成年SVL显著高于男性的原因。
Abstract A mark and recapture study was carried out from 1990–1992 for a population of Gekko hokouensis in the southern part of Okinawajima Island, Ryukyu Archipelago. Gonadal states were also examined for 389 preserved specimens from the central part of the island. Results indicate that this species breeds from April to August and that females may lay eggs more than once during a breeding season. Young appeared from July to November, and hatchlings, although they grew somewhat in autumn, scarcely grew in winter. Their growth rate dramatically increased during the next spring and summer. Although some hatchlings grew to the minimum maturity size (43 mm in snout–vent length in both sexes) by the end of the next breeding season, others required a second year to reach maturity. There were no sexual differences in juvenile growth. After reaching maturity, however, growth rate of females was significantly greater than that of males. This seems to account for the significantly greater adult SVL in females than in males.