博斯克缘趾蜥突尼西亚种群性别大小的二态性

IF 0.8 4区 生物学 Q3 ZOOLOGY African Journal of Herpetology Pub Date : 2015-07-03 DOI:10.1080/21564574.2015.1103786
I. Nasri, A. Hammouda, F. Hamza, S. Selmi
{"title":"博斯克缘趾蜥突尼西亚种群性别大小的二态性","authors":"I. Nasri, A. Hammouda, F. Hamza, S. Selmi","doi":"10.1080/21564574.2015.1103786","DOIUrl":null,"url":null,"abstract":"Abstract Investigating how patterns of sexual size dimorphism vary among local populations may be useful for understanding size evolution in lizards. We investigated patterns of sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper, in relation to a Middle-eastern population of the same subspecies. Our results showed an overall male-biased size dimorphism, consistent with general sexual size dimorphism trends in lacertids, and provide support for both the fecundity advantage hypothesis and the intra-sexual selection hypothesis. Indeed, for similarly-sized heads, females had longer trunks than males, and for similarly-sized trunks, males showed larger heads than females. Using the discriminant function approach, we investigated whether the power of discrimination between sexes varied when morphometric measures were expressed relative to head length vs. trunk length. We found that the two methods agreed in the classification of individuals as males or females, although the discrimination power was slightly higher when data were expressed relative to head length. Our results also showed that when using trunk length-adjusted data the power of discriminating the sexes was higher when the analysis was restricted to the largest individuals, which gives support to the idea that for morphological investigations small subsamples of the largest individuals should be used. Overall, the results of our work support the conclusions of a recent study on sexual size dimorphism in a Middle-eastern population of the same subspecies, suggesting that patterns of sexual size dimorphism are geographically stable in this widely distributed subspecies.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2015-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2015.1103786","citationCount":"4","resultStr":"{\"title\":\"Sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper\",\"authors\":\"I. Nasri, A. Hammouda, F. Hamza, S. Selmi\",\"doi\":\"10.1080/21564574.2015.1103786\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Investigating how patterns of sexual size dimorphism vary among local populations may be useful for understanding size evolution in lizards. We investigated patterns of sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper, in relation to a Middle-eastern population of the same subspecies. Our results showed an overall male-biased size dimorphism, consistent with general sexual size dimorphism trends in lacertids, and provide support for both the fecundity advantage hypothesis and the intra-sexual selection hypothesis. Indeed, for similarly-sized heads, females had longer trunks than males, and for similarly-sized trunks, males showed larger heads than females. Using the discriminant function approach, we investigated whether the power of discrimination between sexes varied when morphometric measures were expressed relative to head length vs. trunk length. We found that the two methods agreed in the classification of individuals as males or females, although the discrimination power was slightly higher when data were expressed relative to head length. Our results also showed that when using trunk length-adjusted data the power of discriminating the sexes was higher when the analysis was restricted to the largest individuals, which gives support to the idea that for morphological investigations small subsamples of the largest individuals should be used. Overall, the results of our work support the conclusions of a recent study on sexual size dimorphism in a Middle-eastern population of the same subspecies, suggesting that patterns of sexual size dimorphism are geographically stable in this widely distributed subspecies.\",\"PeriodicalId\":49247,\"journal\":{\"name\":\"African Journal of Herpetology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2015-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1080/21564574.2015.1103786\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"African Journal of Herpetology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1080/21564574.2015.1103786\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ZOOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"African Journal of Herpetology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/21564574.2015.1103786","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 4

摘要

研究不同地方种群性别大小二态性的变化模式,可能有助于理解蜥蜴的大小进化。我们研究了突尼斯博斯克边缘趾蜥蜴种群与中东同一亚种种群的性别大小二态性模式。研究结果表明,乳草科动物总体上存在雄性偏大的体型二态现象,这与雌性体型二态现象的普遍趋势一致,为繁殖力优势假说和性内选择假说提供了支持。事实上,对于同样大小的头部,雌性的躯干比雄性长,而对于同样大小的躯干,雄性的头部比雌性大。使用判别函数方法,我们研究了当形态测量测量相对于头长和躯干长度表示时,性别之间的辨别能力是否会发生变化。我们发现,这两种方法在将个体分类为男性或女性方面是一致的,尽管当数据相对于头长表示时,歧视力略高。我们的研究结果还表明,当使用躯干长度调整后的数据时,当分析仅限于最大的个体时,区分性别的能力更高,这支持了应该使用最大个体的小亚样本进行形态学调查的想法。总的来说,我们的工作结果支持了最近对同一亚种的中东种群的性别大小二态性研究的结论,表明性别大小二态性模式在这个广泛分布的亚种中是稳定的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper
Abstract Investigating how patterns of sexual size dimorphism vary among local populations may be useful for understanding size evolution in lizards. We investigated patterns of sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper, in relation to a Middle-eastern population of the same subspecies. Our results showed an overall male-biased size dimorphism, consistent with general sexual size dimorphism trends in lacertids, and provide support for both the fecundity advantage hypothesis and the intra-sexual selection hypothesis. Indeed, for similarly-sized heads, females had longer trunks than males, and for similarly-sized trunks, males showed larger heads than females. Using the discriminant function approach, we investigated whether the power of discrimination between sexes varied when morphometric measures were expressed relative to head length vs. trunk length. We found that the two methods agreed in the classification of individuals as males or females, although the discrimination power was slightly higher when data were expressed relative to head length. Our results also showed that when using trunk length-adjusted data the power of discriminating the sexes was higher when the analysis was restricted to the largest individuals, which gives support to the idea that for morphological investigations small subsamples of the largest individuals should be used. Overall, the results of our work support the conclusions of a recent study on sexual size dimorphism in a Middle-eastern population of the same subspecies, suggesting that patterns of sexual size dimorphism are geographically stable in this widely distributed subspecies.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
3.00
自引率
6.70%
发文量
15
审稿时长
>12 weeks
期刊介绍: African Journal of Herpetology (AJH) serves as an outlet for original research on the biology of African amphibians and reptiles. AJH is an interdisciplinary journal that publishes original articles and reviews from diverse fields and disciplines, such as conservation, phylogenetics, evolution, systematics, performance, physiology, ecology, behavioural ecology, ethology, and morphology. The Journal publishes two issues a year. There are no page charges .
期刊最新文献
Unveiling the First Neobatrachian (Anura) Discovered in the paleokarst system of Bolt’s Farm (Plio-Pleistocene; Cradle of Humankind), South Africa Patterned, plain, and in-between: An assessment of ecogeographic divergence between colour pattern morphs of the common egg-eater Dasypeltis scabra Characterisation, prevalence and antibiogram of Aeromonas hydrophila in turtles: insights into virulence factors, antimicrobial resistance genes and innate immunity Science in decline: Is quality sacrificed for quantity and ease of access? Burrow site selection in the Sungazer (Smaug giganteus): a threatened South African endemic lizard
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1