Departamento de Protección Vegetal, Instituto de Ciencias Agrarias, Centro de Ciencias Medioambientales, 28006 Madrid, Spain.
J Insect Sci. 2010;10:177. doi: 10.1673/031.010.14137.
Implications for adults' fitness through the foliage effects of five different host plants on larval survival and performance of the lappet moth, Streblote panda Hübner (Lepidoptera: Lasiocampidae), as well as their effect on species fitness were assayed. Larvae were reared under controlled laboratory conditions on excised foliage. Long-term developmental experiments were done using first instar larvae to adult emergence, and performance experiments were done using fifth instar larvae. Survival, development rates, and food use were measured. Foliar traits analysis indicated that leaves of different host plants varied, significantly affecting larvae performance and adult fitness. Pistacia lentiscus L. (Sapindales: Anacardiaceae), Arbutus unedo L. (Ericales: Ericaceae), and Retama sphaerocarpa (L.) Boiss. (Fabales: Fabaceae) were the most suitable hosts. Larvae fed on Tamarix gallica L. (Caryophyllales: Tamaricaceae) and Spartium junceum L. (Fabales: Fabaceae) showed the lowest survival, rates of development and pupal and adult weight. In general, S. panda showed a relatively high capacity to buffer low food quality, by reducing developmental rates and larvae development thereby reaching the minimum pupal weight that ensures adult survival. Less suitable plants seem to have indirect effects on adult fitness, producing smaller adults that could disperse to other habitats.
研究了五种不同寄主植物的叶幕效应对成年蛾健康的影响，以及对幼虫存活率和性能的影响，以评估其对物种健康的影响。在受控的实验室条件下，幼虫在切除的树叶上饲养。使用初孵幼虫进行长期发育实验，直至成虫出现，并使用五龄幼虫进行性能实验。测量了存活率、发育率和食物利用率。叶特性分析表明，不同寄主植物的叶片差异显著，影响幼虫的表现和成虫的健康。黄连木（漆树目：漆树科）、杨梅（桃金娘目：杨梅科）和野巴旦杏（豆目：豆科）是最适合的寄主。在李属黄连木和滨藜科滨藜上取食的幼虫表现出最低的存活率、发育率和蛹及成虫体重。总的来说，沙棘幼虫表现出较高的缓冲低质量食物的能力，通过降低发育率和幼虫发育，从而达到确保成虫生存的最低蛹重。不太适合的植物似乎对成虫的健康有间接影响，产生的成虫较小，可能会扩散到其他栖息地。
