Patterns of resource use by milkweed insects in Sinai

Egyptian Journal of Biology

SM Elbanna¹  F Gilbert¹  S Elliott¹  SM Zalat¹  DM Shuker¹ 

关键词: Asclepias;    Gomphocarpus;    aposematism;    cardenolides;    coevolution;    insect-plant interactions;    specialisation;   

DOI  :  

学科分类：生物科学（综合）

来源: Egyptian-English Society for Biological Sciences

【 摘 要 】

Plant morphology and defensive chemistry are related to the insect community of herbivores on Gomphocarpus sinaicus (Boiss.) (Apocynaceae) in Sinai (Egypt). There appears to be significant variation among individual plants in the components of their chemical defences. The different components of the community respond differently to plant characters; plant defence appears to be an important determinant of the relative abundances of the insect species. The data showed an indications of different relationships of the insect herbivores to levels of chemical defences, especially aphids. While weevil and bug densities covaried, those of aphids varied more independently, and possibly inversely. The community is compared with the much better known North American herbivore community on plants of the sister-genus Asclepias.

【 授权许可】

Unknown