Appel A G
Department of Entomology, Auburn University, AL 36849-5413.
J Econ Entomol. 1994 Aug;87(4):1027-32. doi: 10.1093/jee/87.4.1027.
Intra- and interspecific trappings of American, Periplaneta americana (L.), and smokybrown, P. fuliginosa (Serville), cockroaches were examined in laboratory experiments. More P. americana were caught in live traps than P. fuliginosa. Overall, more individuals were caught with a conspecific bait than with a heterospecific bait. Significantly more adult male, female, and total P. americana were caught in traps baited with a conspecific than with unbaited traps. Heterospecific nymphs were repellent to male and female P. americana. More P. americana were caught with conspecific females and nymphs as bait than with heterospecific nymphs. For P. fuliginosa, only more males were caught with a trap with a conspecific compared with an unbaited trap. Traps with nymphal P. fuliginosa caught more conspecifics than did unbaited traps or traps with heterospecific nymphs. Nymphal P. fuliginosa were repelled by nymphal P. americana. P. americana were captured more frequently and were more selective in interspecific associations than P. fuliginosa. These results partly account for differences in sampling these species in areas of sympatry and suggest that volatile semiochemicals are produced and detected by most stages of these cockroaches.
在实验室实验中，对美洲大蠊（Periplaneta americana (L.)）和黑胸大蠊（P. fuliginosa (Serville)）的种内和种间诱捕情况进行了研究。美洲大蠊在活饵诱捕器中捕获的数量比黑胸大蠊多。总体而言，同种诱饵捕获的个体比异种诱饵更多。与未设诱饵的诱捕器相比，用同种诱饵设饵的诱捕器捕获的美洲大蠊成年雄性、雌性和总数均显著更多。异种若虫对美洲大蠊的雄性和雌性具有驱避作用。以同种雌性和若虫为诱饵捕获的美洲大蠊比以异种若虫为诱饵捕获的更多。对于黑胸大蠊，与未设诱饵的诱捕器相比，只有用同种诱饵设饵的诱捕器捕获的雄性更多。装有黑胸大蠊若虫的诱捕器捕获的同种个体比未设诱饵的诱捕器或装有异种若虫的诱捕器更多。美洲大蠊若虫对黑胸大蠊若虫具有驱避作用。与黑胸大蠊相比，美洲大蠊在种间关联中被捕频率更高且更具选择性。这些结果部分解释了在同域分布区域对这些物种进行采样时的差异，并表明这些蟑螂的大多数发育阶段都会产生并检测挥发性信息化学物质。
