DUET SINGING AND FEMALE CHOICE IN THE BUSHCRICKET PHANEROPTERA NANA by ERAN TAUBER 1,2) , DAN COHEN 3) , MICHAEL D. GREENFIELD 4) and MEIR PAUL PENER 1,5,6) ( 1 Department of Cell and Animal Biology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; 2 Charles E. Smith Family Laboratory for Collaborative Research in Psychobiology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; 3 Department of Ecology, Systematics and Evolution, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; 4 Department of Entomology, University of Kansas, Lawrence, Kansas 66054, USA) (Acc. 19-X-2000) Summary In the phaneropterinebushcricket Phaneroptera nana both males and females sing, producing a duet. The male’s song is answered by a short female ‘tick’. A male that receives a response in a de ned interval after the end of his chirp usually initiates phonotaxis toward the female. Measurements of temporal, spectral, and energy characters of male chirps indicate that individual males vary considerably in several temporal song characters. Females exhibited equivalent response rates to solitary singing males in laboratory trials regardless of their song characters. However, when simultaneously presented with two singing males, females showed consistent preferences: They responded preferentially to relatively longer chirps produced by larger
Behaviour – Brill
Published: Jan 1, 2001
Keywords: ACOUSTIC COMMUNICATION; BUSHCRICKETS; DUET; FEMALE CHOICE; PHANEROPTERA NANA; SONG CHARACTERS
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