No Evidence for Pre-Copulatory Sexual Selection on Sperm Length in a Passerine Bird


There is growing evidence that post-copulatory sexual selection, mediated by sperm competition, influences the evolution of sperm phenotypes. Evidence for pre-copulatory sexual selection effects on sperm traits, on the other hand, is rather scarce. A recent paper on the pied flycatcher, Ficedula hypoleuca, reported phenotypic associations between sperm… (More)
DOI: 10.1371/journal.pone.0032611


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