01894nas a2200229   4500008004100000022001400041245006100055210006000116260001600176300001400192520113100206653002501337653002001362653001801382653002701400100002701427700001701454700003201471700002601503700002201529856011301551       2018                        eng d  a0003-014700aPurring Crickets: The Evolution of a Novel Sexual Signal0 aPurring Crickets The Evolution of a Novel Sexual Signal  cMar-10-2018  a000 - 0003 a<p>Opportunities to observe contemporary signal change are incredibly rare but critical for understanding how diversity is created and maintained. We discovered a population of the Pacific field cricket (Teleogryllus oceanicus) with a newly evolved song (purring), different from any known cricket. Male crickets use song to attract females from afar and to court females once near. Teleogryllus oceanicus is well known for sexual signal evolution, as exemplified by a recent signal loss. In this study, we characterized the new purring sound and investigated the role of the purr in long-distance and short-distance communication. The purring sound differed from typical ancestral calls in peak frequency, amplitude, and bandwidth. Further, the long-distance purring song facilitated mate location, though the role of courtship purring song is less clear. Our discovery of purring male crickets is an unprecedented opportunity to watch the emergence of a newly evolved sexual signal unfold in real time and has potential to illuminate the mechanisms by which evolutionary novelties arise and coevolve between the sexes.</p>
10aevolutionary novelty10arapid evolution10asexual signal10aTeleogryllus oceanicus1 aTinghitella, Robin, M.1 aBroder, Dale1 aGurule-Small, Gabrielle, A.1 aHallagan, Claudia, J.1 aWilson, Jacob, D.  uhttps://www.journals.uchicago.edu/doi/10.1086/700116https://www.journals.uchicago.edu/doi/pdf/10.1086/700116