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Divergent male and female mate preferences do not explain incipient speciation between lizard lineages

Current Zoology 2020年第5期66卷 485-492页

作者： Claire A.McLean Richard A.Bartle Caroline M.Dong Katrina J.Rankin devi stua.t-fox School of BioSciences The University of MelbourneParkville VIC 3010Australia Sciences Department Museums VictoriaCarlton VIC 3053Australia

Diversification in sexual signals is often taken as evidenee for the importance of sexual selection in speciatio ***,in order for sexual selection to gen erate reproductive isolati on between populations,both signals and mate preferences must diverge ***,assortative mating may result from multiple behavioral mecha nisms,in eluding female mate pref ere nces,male mate preferences,and male-male competition;yet their relative contributions are rarely ***,we explored the role of mate pref ere nces and male competitive ability as pote ntial barriers to gene flow between 2 diverge nt lineages of the taw ny dragon lizard,Ctenophorus decresii,which differ in male throat *** found stronger behavioral barriers to pairings between southern lineage males and northern lineage females than between northern males and southern females,indicating incomplete and asymmetric behavioral isolating *** results were driven by both male and female mate preferences rather than lineage differences in male competitive *** trasexual selecti on is therefore un likely to drive the outcome of sec on dary contact in ***,despite its widely ack no wledged importa nee in *** results are consiste nt with the emergi ng view that although both male and female mate pref ere nces can diverge alongside sexual signals,speciation is rarely driven by divergent sexual selection alone.

关键词： Ctenophorus decresii hybridization male-male competition secondary contact sexual selection

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