01986nas a2200169   4500008004100000022001300041245008600054210006900140260001600209300001600225490000700241520145700248100001701705700001301722700001501735856006601750       1984                        eng d  a0003347200aAcoustic courtship signals in the Caribbean fruit fly, Anastrepha suspensa (Loew)0 aAcoustic courtship signals in the Caribbean fruit fly Anastrepha  cJan-11-1984  a1011 - 10160 v323 a<p>Male Caribbean fruit flies, Anastrepha suspensa (Loew) produce two sounds in sexual contexts, calling songs and precopulatory songs. Calling song occurs during pheromone release from territories within leks and consists of repeated bursts of sound (pulse trains). Virgin female A. suspensa became more active in the presence of recorded calling songs. Activity during the broadcast of a heterospecific song did not differ from movement during periods of silence. A conspecific song typical of smaller males, i.e. conspicuous for its long periods between pulse trains, also failed to elicit more activity by virgin females than silence. Mated females were most active during silences. Unmated males had no obvious reaction to sound. Calling songs are apparently sexually important communications which females discriminate among and may use as cues for locating and/or choosing between mates. Precopulatory song is produced by mounted males just before and during the early stages of copulation. Males that did not produce such songs remained coupled for shorter periods, perhaps passing fewer sperm. Wingless (muted) males were more likely to complete aedeagal insertion if a recorded precopulatory song was broadcast. Calling song played at the same level (90 dB) had no significant effect on the acceptance of males, nor did precopulatory song at a lower SPL (52dB). Precopulatory song may be used to display male vigour to choosing females.</p>
1 aSivinski, J.1 aBurk, T.1 aWebb, J.C.  uhttp://linkinghub.elsevier.com/retrieve/pii/S0003347284802146