Female mate preferences in Conambo, Ecuador

2009 ◽  
Author(s):  
Michelle Escasa
Keyword(s):  
PLoS ONE ◽  
2010 ◽  
Vol 5 (12) ◽  
pp. e14340 ◽  
Author(s):  
Neeltje J. Boogert ◽  
Cavina Bui ◽  
Krista Howarth ◽  
Luc-Alain Giraldeau ◽  
Louis Lefebvre

2009 ◽  
Vol 6 (1) ◽  
pp. 21-23 ◽  
Author(s):  
Topi K. Lehtonen ◽  
Bob B. M. Wong ◽  
Kai Lindström

According to theory, directional female choice for male sexual ornaments is expected to erode underlying genetic variation. Considerable attention, in this regard, has been given to understanding the ubiquity of heritable genetic variation in both female choice and male sexual traits. One intriguing possibility emerging from this work is that persistent genetic variation could be maintained, over time, by variation in female mate preferences. Here, we report the results of a four-year study showing significant year-to-year fluctuations in mate preferences in a small marine fish, the sand goby, Pomatoschistus minutus . Although the average size of mature fish varied across years, we were unable to find direct evidence linking this variation to differences in female preferences among years. Our results, nevertheless, underscore the importance of temporal fluctuations in female mate preferences, as these can have important consequences for understanding variation in sexual traits and the intensity of sexual selection.


2020 ◽  
Author(s):  
Kun Guo ◽  
Chen Chen ◽  
Xiao-Fang Liang ◽  
Yan-Fu Qu ◽  
Xiang Ji

Abstract Background: Identifying the factors that contribute to divergence among populations in mate preferences is important for understanding of the manner in which premating reproductive isolation might arise and how this isolation may in turn contribute to the evolutionary process of population divergence. Here, we offered female northern grass lizards (Takydromus septentrionalis) a choice of males between their own population and another four populations to test whether the preferences that females display in the mating trials correlate with phenotypic adaptation to local environments, or to the neutral genetic distance measured by divergence of mitochondrial DNA sequence loci. Results: Females showed a strong preference for native over foreign males. Females that mated with native versus foreign males did not differ from each other in mating latency, or copulation duration. From results of the structural equation modelling we knew that: 1) geographical distance directly contributed to genetic differentiation and environmental dissimilarity; 2) genetic differentiation and environmental dissimilarity indirectly contributed to female mate preference, largely through their effects on morphological divergence; and 3) females judged mates by body shape (appearance) and discriminated more strongly against morphologically less familiar allopatric males.Conclusions: Local adaptation rather than neutral genetic distance influences female mate preference in T. septentrionalis. The tendency to avoid mating with foreign males may indicate that, in T. septentrionalis, local adaptations are more valuable than genetic novelties. Our results highlight the importance of comprehensive studies integrating ecological, molecular and behavioral approaches to understand population divergence in female mate preferences as the consequence of local adaptations.


Author(s):  
Megan B. Siesseger ◽  
Maria Dal Maso ◽  
John W. Thoburn
Keyword(s):  

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