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Updated: Jun 22, 2026
09:55
Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
Published on: December 25, 2016
Dissecting selection on female mating preferences during secondary contact
Stephen R Proulx1, Maria R Servedio
1Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, California, USA. stephen.proulx@gmail.com
Summary
Female mating preferences spread faster when based on population-specific cues compared to local adaptation alone. Preferences for male condition also spread rapidly, suggesting evolution under reinforcement.
Area of Science:
- Evolutionary biology
- Behavioral ecology
- Population genetics
Background:
- Premating isolation, crucial for speciation, is driven by population-specific mating preferences.
- These preferences can be based on various cues, including local adaptation and male traits.
Purpose of the Study:
- To compare the spread rates of 12 distinct mating preferences.
- To identify factors influencing the speed of mating preference evolution.
- To investigate the roles of local adaptation, male condition, and reinforcement in mating preferences.
Main Methods:
- Modeling the rate of spread for different mating preference scenarios.
- Analyzing the components contributing to the rate of spread.
- Comparing spread rates under varying strengths of natural selection against hybrids.
Main Results:
- Female preferences for population-specific markers spread faster than those based solely on local adaptation.
- The underlying reasons for faster spread vary with the strength of selection against hybrids.
- Preferences for male condition also exhibited high rates of spread.
Conclusions:
- Mating preferences based on population-specific cues are evolutionarily advantageous.
- Reinforcement scenarios may favor the evolution of preferences for condition-dependent male displays.
- Understanding the drivers of mating preference spread is key to understanding speciation.
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