Analysis of female song provides insight into the evolution of sex differences in a widely studied songbird

  title={Analysis of female song provides insight into the evolution of sex differences in a widely studied songbird},
  author={Matthew R. Wilkins and Karan J. Odom and Lauryn Benedict and Rebecca J. Safran},
  journal={Animal Behaviour},
Understanding the patterns and processes related to sexual dimorphism and sex differences in diverse animal taxa is a foundational research topic in ecology and evolution. Within the realm of animal communication, studies have traditionally focused on male signals, assuming that female choice and male-male competition have promoted sex differences via elaboration of male traits, but selection on females also has the potential to drive sexual differentiation in signals. Here, we describe female… 
Female song is structurally different from male song in Orchard Orioles, a temperate-breeding songbird with delayed plumage maturation
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Sexual and temporal variation in New Zealand bellbird song repertoires
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Vocal communication in hummingbirds.
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New insights from female bird song: towards an integrated approach to studying male and female communication roles
This work highlights newly emerging questions and proposes a research framework to investigate female song and song sex differences across species, and encourages experimental tests of mechanism, ontogeny, and function integrated with comparative evolutionary analyses.
Understanding Sex Differences in Form and Function of Bird Song: The Importance of Studying Song Learning Processes
Combined mapping of phylogenetic and ecological correlates of sex differences in song structure and function might provide important clues to the evolution of male and female song.
Sex differences in song and plumage color do not evolve through sexual selection alone: new insights from recent research
Findings support the view that sexual dimorphism is an evolutionary byproduct of multiple, different selection pressures acting on each sex rather than just sexual selection on males.
Female Song Occurs in Songbirds with More Elaborate Female Coloration and Reduced Sexual Dichromatism
The results suggest that female plumage and female song likely evolved together under similar selection pressures and that their respective functions are reinforcing.
Female song is widespread and ancestral in songbirds.
An extensive survey and ancestral state reconstruction of female song across songbirds is presented showing that female song is present in 71% of surveyed species including 32 families, and that females sang in the common ancestor of modern songbirds.
The effects of life history and sexual selection on male and female plumage colouration
A new method is used to quantify plumage colour of all ~6,000 species of passerine birds to determine the main evolutionary drivers of ornamental colouration in both sexes, and finds that conspecific male and female colour elaboration are strongly correlated.
Female Song Rate and Structure Predict Reproductive Success in a Socially Monogamous Bird
The relationship between reproductive success and female song performance in the New Zealand bellbird, a passerine resident year round in New Zealand temperate forests, is investigated and it is clearly demonstrated here that female song predicts reproductive success.
Why do females sing?—pair communication and other song functions in eastern bluebirds
A clear link between the function of female song in pair communication and the likely selective force of long-term pair bonds acting on eastern bluebird reproductive success is demonstrated.
Rethinking our assumptions about the evolution of bird song and other sexually dimorphic signals
  • J. Price
  • Biology, Psychology
    Front. Ecol. Evol.
  • 2015
It is proposed that these new findings do not necessarily contradict previous research, but rather they disagree with some of the authors' assumptions about the evolution of sexual dimorphisms in general and female song in particular.
  • 2014