Showing papers on "Drosophila suzukii published in 2009"
01 Oct 2009
TL;DR: This dissertation aims to provide a history of horticulture in the state of Oregon and some of the techniques and practices used in its development up to and including the year in which it was established.
Abstract: Published October 2009. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
40 citations
TL;DR: Acoustic analyses of the courtship songs of the suzukii and takahashii subgroups in the Drosophila melanogaster species group found two undocumented sound patterns, which are composed of short, high frequency pulses with 4 ms interpulse intervals.
Abstract: Acoustic analyses of the courtship songs of the suzukii and takahashii subgroups in the Drosophila melanogaster species group were conducted. The primary and secondary pulse phases that are common in the melanogaster subgroup were not observed in these two subgroups. However, two undocumented sound patterns were discovered. D. biarmipes and D. pulchrella (suzukii subgroup) produce high amplitude, nonrhythmic “toot” sounds, which range from 82–158 ms in duration. The toot sound in D. biarmipes has a consistent dynamic frequency profile. It starts with an onset of 479 Hz and gradually falls to 422 Hz and then rises to 477 Hz. The toot sound in D. pulchrella has a significantly lower frequency when compared to D. biarmipes. Its frequency profile falls gradually from 352–259 Hz. In addition, a “turbo” sound was recorded in D. prostipennis (takahashii subgroup). It is composed of short, high frequency pulses (520 Hz) with 4 ms interpulse intervals. In the melanogaster subgroup, the parameters of pulses have be...
3 citations