<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">H. C. Bennet-Clark</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Do the song pulses of Drosophila show cyclic fluctuations?</style></title><secondary-title><style face="normal" font="default" size="100%">Trends Ecol Evol</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Trends Ecol. Evol. (Amst.)</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">1990</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1990 Mar</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">93-7</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Following analysis of the song of two Drosophila species, Kyriacou and Hall in 1980 described a rhythmic variation in the intervals between sound pulses. This rhythmicity was species specific and various mutants also showed characteristic song-period rhythmicity. Recent attempts by Ewing and by Crossley to confirm the existence of the rhythms, using essentially similar methods, have failed; Kyriacou and Hall have since ascribed these failures to differences in technique and methods of measurement between them and their critics, and re-affirm that the rhythmicity they described exists. In view of the controversy surrounding the existence of song-period rhythmicity, a body of work on the genetics of this behaviour must be viewed with caution.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue></record></records></xml>