Arid
DOI10.1086/683658
Ecological Divergence, Adaptive Diversification, and the Evolution of Social Signaling Traits: An Empirical Study in Arid Australian Lizards
Edwards, Danielle L.1; Melville, Jane2; Joseph, Leo3; Keogh, J. Scott4
通讯作者Edwards, Danielle L.
来源期刊AMERICAN NATURALIST
ISSN0003-0147
EISSN1537-5323
出版年2015
卷号186期号:6页码:E144-E161
英文摘要

Species diversification often results from divergent evolution of ecological or social signaling traits. Theoretically, a combination of the two may promote speciation, however, empirical examples studying how social signal and ecological divergence might be involved in diversification are rare in general and typically do not consider range overlap as a contributing factor. We show that ecologically distinct lineages within the Australian sand dragon species complex (including Ctenophorus maculatus, Ctenophorus fordi, and Ctenophorus femoralis) have diversified recently, diverging in ecologically relevant and social signaling phenotypic traits as arid habitats expanded and differentiated. Diversification has resulted in repeated and independent invasion of distinct habitat types, driving convergent evolution of similar phenotypes. Our results suggest that parapatry facilitates diversification in visual signals through reinforcement as a hybridization-avoidance mechanism. We show that particularly striking variation in visual social signaling traits is better explained by the extent of lineage parapatry relative to ecological or phylogenetic divergence, suggesting that these traits reinforce divergence among lineages initiated by ecologically adaptive evolution. This study provides a rare empirical example of a repeated, intricate relationship between ecological and social signal evolution during diversification driven by ecological divergence and the evolution of new habitats, thereby supporting emergent theories regarding the importance of both ecological and social trait evolution throughout speciation.


英文关键词agamid aridification Ctenophorus diversification ecological adaptation social signal evolution
类型Article
语种英语
国家USA ; Australia
收录类别SCI-E
WOS记录号WOS:000365307700001
WOS关键词SEXUAL SELECTION ; AGAMID LIZARDS ; DRAGON LIZARDS ; BODY-SIZE ; REPRODUCTIVE ISOLATION ; PHENOTYPIC EVOLUTION ; PHYLOGENETIC SIGNAL ; AEOLIAN LANDFORMS ; NATURAL-SELECTION ; SPECIES RICHNESS
WOS类目Ecology ; Evolutionary Biology
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185713
作者单位1.Univ Calif, Sch Nat Sci, Merced, CA 95343 USA;
2.Museum Victoria, Dept Sci, Melbourne, Vic 3000, Australia;
3.CSIRO Sustainable Ecosyst, Australian Natl Wildlife Collect, Canberra, ACT 2601, Australia;
4.Australian Natl Univ, Res Sch Biol, Canberra, ACT 0200, Australia
推荐引用方式
GB/T 7714
Edwards, Danielle L.,Melville, Jane,Joseph, Leo,et al. Ecological Divergence, Adaptive Diversification, and the Evolution of Social Signaling Traits: An Empirical Study in Arid Australian Lizards[J],2015,186(6):E144-E161.
APA Edwards, Danielle L.,Melville, Jane,Joseph, Leo,&Keogh, J. Scott.(2015).Ecological Divergence, Adaptive Diversification, and the Evolution of Social Signaling Traits: An Empirical Study in Arid Australian Lizards.AMERICAN NATURALIST,186(6),E144-E161.
MLA Edwards, Danielle L.,et al."Ecological Divergence, Adaptive Diversification, and the Evolution of Social Signaling Traits: An Empirical Study in Arid Australian Lizards".AMERICAN NATURALIST 186.6(2015):E144-E161.
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