Intensive and efficient egg-laying tempo of the parthenogenesis mourning gecko Lepidodactylus lugubris

IF 1.1 4区 生物学 Q3 ZOOLOGY Herpetological Journal Pub Date : 2023-10-01 DOI:10.33256/33.4.115118
Tsui-Wen Li, Jhan-Wei Lin, Si-Min Lin
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Abstract

Although suffered from many evolutionary disadvantages, asexual species benefit from their high efficiency to build clonal populations in a novel habitat. Here we report that a parthenogenetic mourning gecko Lepidodactylus lugubris continuously laid 12 clutches within two years. The egg-laying period lasted from mid-April to late October, and the egg-laying interval ranged between 24 and 73 days with a mean of 34.4 days. Referring to this fecundity, a female gecko could reproduce up to 24 clonal female offspring every year, and expand the population size in an efficient way much faster than most bisexual species. The intensive and efficient egg-laying tempo, associated with the parthenogenetic breeding mode, are crucial factors which facilitated their successful colonisation into many islands. Keywords: clonal population, cost of sex, invariant clutch size, invasive species
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孤雌生殖鳞壁虎密集和高效的产蛋速度
尽管无性繁殖物种在进化过程中存在诸多不利条件,但无性繁殖物种在新栖息地建立无性繁殖种群的效率较高。本文报道了单性生殖的鳞尾壁虎(Lepidodactylus lugubris)在两年内连续产卵12次。产蛋期为4月中旬~ 10月下旬,产蛋间隔24 ~ 73 d,平均34.4 d。根据这种繁殖能力,雌性壁虎每年可以繁殖多达24个无性繁殖雌性后代,并且比大多数双性恋物种更快地有效扩大种群规模。密集和高效的产卵速度,与孤雌繁殖模式有关,是促进它们成功殖民到许多岛屿的关键因素。关键词:无性系种群;性代价;不变卵窝大小
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来源期刊
Herpetological Journal
Herpetological Journal 生物-动物学
CiteScore
2.40
自引率
10.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Herpetological Journal is the Society''s prestigious quarterly scientific journal.
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