Sexual dimorphism of craniological characters in the Altai weasel Mustela altaica (Carnivora, Mustelidae)

IF 0.5 4区生物学 Q4 ZOOLOGY

Russian Journal of Theriology Pub Date : 2019-06-28 DOI:10.15298/rusjtheriol.18.1.02

Andrey Yurievich Puzachenko, R. Masuda, A. Abramov

{"title":"Sexual dimorphism of craniological characters in the Altai weasel Mustela altaica (Carnivora, Mustelidae)","authors":"Andrey Yurievich Puzachenko, R. Masuda, A. Abramov","doi":"10.15298/rusjtheriol.18.1.02","DOIUrl":null,"url":null,"abstract":"A morphometric variation in 23 characters of 77 skulls of the Altai weasel Mustela altaica from the delta of Ili River in Kazakhstan has been analysed. Multivariate analyses (nonmetric multidimensional scaling and multivariate allometry) were used to estimate a sexual size dimorphism (SSD) in cranial characters. A high degree of the sexual dimorphism was found in the Altai weasel population. All morphometric characters in the males were larger than those in the females. An average sexual size dimorphism (ASSD) of M. altaica lies within the genus Mustela range. In this species, the SSD is a result of differences in the scale and allometry of cranial characters between sexes, reflecting the differences in male/female allometric ontogenetic patterns. The results are discussed in relation to the existing hypotheses on sexual dimorphism in the mustelids: food competition, sexual selection, and differences in reproductive strategies. How to cite this article: Puzachenko A.Yu., Masuda R., Abramov A.V. 2019. Sexual dimorphism of craniological characters in the Altai weasel Mustela altaica (Carnivora, Mustelidae) //Russian J. Theriol. Vol.18. No.1. P.12–19. doi: 10.15298/rusjtheriol.18.1.02.","PeriodicalId":56047,"journal":{"name":"Russian Journal of Theriology","volume":" ","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Theriology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.15298/rusjtheriol.18.1.02","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ZOOLOGY","Score":null,"Total":0}

引用次数: 3

Abstract

A morphometric variation in 23 characters of 77 skulls of the Altai weasel Mustela altaica from the delta of Ili River in Kazakhstan has been analysed. Multivariate analyses (nonmetric multidimensional scaling and multivariate allometry) were used to estimate a sexual size dimorphism (SSD) in cranial characters. A high degree of the sexual dimorphism was found in the Altai weasel population. All morphometric characters in the males were larger than those in the females. An average sexual size dimorphism (ASSD) of M. altaica lies within the genus Mustela range. In this species, the SSD is a result of differences in the scale and allometry of cranial characters between sexes, reflecting the differences in male/female allometric ontogenetic patterns. The results are discussed in relation to the existing hypotheses on sexual dimorphism in the mustelids: food competition, sexual selection, and differences in reproductive strategies. How to cite this article: Puzachenko A.Yu., Masuda R., Abramov A.V. 2019. Sexual dimorphism of craniological characters in the Altai weasel Mustela altaica (Carnivora, Mustelidae) //Russian J. Theriol. Vol.18. No.1. P.12–19. doi: 10.15298/rusjtheriol.18.1.02.

查看原文本刊更多论文

阿尔泰鼬(食肉目，鼬科)颅骨特征的两性二型性

分析了哈萨克斯坦伊犁河三角洲阿尔泰鼬77个头骨的23个特征的形态变异。使用多变量分析（非度量多维标度和多变量异速测量）来估计颅骨特征中的性别大小二型性（SSD）。在阿尔泰鼬种群中发现了高度的两性异形现象。雄性的所有形态计量特征均大于雌性。祭坛乳杆菌的平均性大小二型性（ASSD）位于Mustela属范围内。在该物种中，SSD是性别之间颅骨特征的尺度和异速测量差异的结果，反映了男性/女性异速个体发育模式的差异。这些结果与现有的关于鼬属两性异形的假设有关：食物竞争、性选择和繁殖策略的差异。如何引用这篇文章：Puzachenko A.Yu.，Masuda R.，Abramov A.V.2019。阿尔泰鼬（食肉目鼬科）头骨特征的两性异形//俄罗斯J.Theriol。第18卷第1期。P.12–19.doi:10.15298/rusjtheriol.8.1.02。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Russian Journal of Theriology Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

0.90

自引率

33.30%

发文量

期刊介绍： The Russian Journal of Theriology publishes papers on all aspects of mammalian biology: taxonomy, zoogeography, ecology, behavior, morphology, development, physiology, paleontology, and evolution. Studies of extinct as well as extant taxa are included. Reviews are also published; these may be invited by the Editorial Board.