Preference and performance linkage of a leaf-mining moth on different Salicaceae species

摘要: The relationship between oviposition prefer-ence and offspring performance of a leaf-mining moth (Paraleucoptera sinuella) on four Salicaceae species was investigated in 1997 1998. We observed the egg distribution pattern different plant field carried out experiments laboratory to determine preference ovipositing females. also examined larval survival, pupal mass, developmental time compare each species. Egg density differed significantly among However, not correlated exactly with demonstrated preference. No larvae could develop two Salix This finding indicated that survival is most critical index performance. Larval well revealed by no-choice experiment laboratory. this correlation found field. These results indicate preference–performance linkage under conditions, always maintained