昆虫窝卵数：现象及其解释

自然界广泛存在生物体产卵成批（窝、块等）现象（如姐妹利间异同、频次分布、季节动态及年间变异）等昆虫系统发育和个体生长（如解剖学特征、个体大小、年龄（产卵顺序）等内因和环境资源（寄主植物、昆虫、温度、水分等）等外因对窝卵数（ｃｌｕｔｃｈｓｉｚｅ）均有一定影响,同一窝卵中的个体受捕食、被寄生、姐妹手足竞争、卵粒大小、个体大小、生殖力、性比等子代适合度因子也受窝卵数大小的影响,本文总结以上各现象提出一关系模型．以较为综合的“窝卵数与继续繁殖间的平衡”假说,从理论上阐述昆虫决定窝印数的机制,并讨论窝印数研究的实际意义。

INSECT CLUTCH SIZE:MINIREVIEW ON PHENOMENON AND ITS EXPLANDTION

Clumpy-ovipositins is a widerly existed phenomenon in nature(discrepance among sibling species, Irequency,seasonal dynamics,annual variation etc.).Insect species phologeny and individual growth (anatomiCal traites, size, age etc.),as well as environmental resources (host-plant, host-insect, tern perature, water stressetc.)affect insect clutch size,fecundity,sex-ratioetc. )of offspring individules in same clutch are influenced by clutch size.In this minireview,a interactional model was suggested based on the two aspects mentioned above and the theoritical explanations on the clutch size merchanism were provided from literatures with a more intesrative"trade-offs between clutch size and reproductive success ". The practical menaings,e. g. understanding the latent/eruptive species,of investigatios on insect clutch size were also discussed.