{"title":"长繁殖季节池蛙种群雌性生殖特征的研究","authors":"Ryohei Shimoyama","doi":"10.5358/HSJ1972.15.1_37","DOIUrl":null,"url":null,"abstract":"Reproductive traits of female Rana nigromaculata inhabiting northern Ina Basin, Nagano Prefecture, were studied for two breeding seasons. The breeding season lasts at least two months between mid May and early July. This prolonged breeding is caused by markedly asynchronous development of ovarian eggs among females. Smaller females tend to breed later in the season than larger ones. Clutch size and ovum size are positively correlated with female snout-vent length.","PeriodicalId":348021,"journal":{"name":"Japanese journal of herpetology","volume":"104 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Female Reproductive Traits in a Population of the Pond Frog, Rana nigromaculata , with Prolonged Breeding Season\",\"authors\":\"Ryohei Shimoyama\",\"doi\":\"10.5358/HSJ1972.15.1_37\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Reproductive traits of female Rana nigromaculata inhabiting northern Ina Basin, Nagano Prefecture, were studied for two breeding seasons. The breeding season lasts at least two months between mid May and early July. This prolonged breeding is caused by markedly asynchronous development of ovarian eggs among females. Smaller females tend to breed later in the season than larger ones. Clutch size and ovum size are positively correlated with female snout-vent length.\",\"PeriodicalId\":348021,\"journal\":{\"name\":\"Japanese journal of herpetology\",\"volume\":\"104 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Japanese journal of herpetology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5358/HSJ1972.15.1_37\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese journal of herpetology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5358/HSJ1972.15.1_37","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Female Reproductive Traits in a Population of the Pond Frog, Rana nigromaculata , with Prolonged Breeding Season
Reproductive traits of female Rana nigromaculata inhabiting northern Ina Basin, Nagano Prefecture, were studied for two breeding seasons. The breeding season lasts at least two months between mid May and early July. This prolonged breeding is caused by markedly asynchronous development of ovarian eggs among females. Smaller females tend to breed later in the season than larger ones. Clutch size and ovum size are positively correlated with female snout-vent length.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
