兼性幼体发育背景下肉三角虎(尾纲:蝾螈科)的体型、年龄和种群结构

IF 0.6 4区生物学 Q4 ZOOLOGY

Acta Herpetologica Pub Date : 2018-12-31 DOI:10.13128/ACTA_HERPETOL-21972

G. Bruni, G. Tessa, C. Angelini

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引用次数: 0

摘要

与其他欧洲蝾螈（如alpestris鱼龙和Lissotriton属）相比，Triturus属很少发生兼性恋童癖。大多数观察结果与每个地点的单个或少数个体有关。本文报道了两个肉毒海龙和恋童癖种群的体型、年龄和种群规模。由于其中一个种群由大约25%的恋童癖组成，这是首次对拥有大量恋童癖个体的大型蝾螈种群进行研究。我们发现了恋童癖的生态因果关系的证据，并进一步支持了最近关于恋童症的两个发现：恋童癖中性别大小二型性的减少和女性偏见的性别比。

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Body size, age and population structure of Triturus carnifex (Urodela: Salamandridae) in the context of facultative paedomorphosis

Facultative paedomorphosis occurs rarely in the genus Triturus compared to other European newts such as Ichthyosaura alpestris and Lissotriton spp., with most of observation related to single or few individuals per site. In this paper we report about body size, age and population size of two populations of Triturus carnifex with paedomorphs. Since one of the populations consisted of approximately 25% of paedomorphs, this is the first study about a population of large-bodied newts with a conspicuous number of paedomorphic individuals. We found evidences for an ecological causation of paedomorphosis, as well as further support for two recent findings about paedomorphosis: the reduction of sexual size dimorphism and the female-biased sex-ratio within paedomorphs.

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来源期刊

Acta Herpetologica ZOOLOGY-

CiteScore

1.20

自引率

12.50%

发文量

审稿时长

6 months

期刊介绍： Acta Herpetologica, a journal open to academics all over the world, offers itself as a new site for the presentation and discussion of the most recent results in the field of research on Amphibians and Reptiles, both living and extinct. The official journal of the Societas Herpetologica Italica (S.H.I.), Acta Herpetologica publishes original works – extended articles, short notes and book reviews – mostly in English, dealing with the biology and diversity of Amphibians and Reptiles.