Intra- and interspecific competition between biotypes B and Q of Bemisia tabaci (Hemiptera: Aleyrodidae) from Spain
Intra- and interspecific competition between biotypes B and Q of Bemisia tabaci (Hemiptera: Aleyrodidae) from Spain
复制标题
DOI：
10.1079/ber2003307
复制
发表时间：
2004-08-01
影响因子：
1.9
通讯作者：
Callejas, C
中科院分区：
文献类型：
--
作者：
Pascual, S;Callejas, C
对分别采自特内里费岛和马略卡岛的烟粉虱B型和Q型进行了番茄cv竞争处理。Marmande在实验室里。在不同密度的单一和混合培养中建立了两种生物型。与生物型B相比，在单一或混合培养中饲养时，Q型雌性和未成熟幼虫的死亡率增加，繁殖率和后代大小也较低。Q生物型F-1个体的雌雄比在单一培养中高于混合培养。而B生物型的F-1个体在单培养和混合培养中性别比例相同，可能存在生殖干扰。粉虱密度不影响种间相互作用。它对两种生物型的发育率有中等影响，仅对B生物型的幼虫死亡率和子代大小有中等影响。结果表明，在实验室条件下，所研究的生物型B应该取代生物型Q。
Biotypes B and Q of Bemisia tabaci (Gennadius), collected from the islands of Tenerife and Majorca respectively, were exposed to competition conditions on tomato cv. Marmande in the laboratory. Both biotypes were established in single and mixed cultures at different densities. Increased mortality of biotype Q females and immature instars was observed together with a lower rate of fecundity and progeny size compared to biotype B, when reared in single or mixed cultures. The female:male sex ratio of F-1 individuals of biotype Q was higher in single than in mixed cultures. However, the sex ratio of F-1 individuals of biotype B was the same in single and mixed cultures, suggesting reproductive interference. Whitefly density did not affect interspecific interactions. It had a moderate effect on developmental rate of both biotypes, and on mortality of immature instars and progeny size of biotype B only. The results indicate that under laboratory conditions the studied biotype B should displace biotype Q.