Compton S G, Hawkins B A
Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa.
NERC Centre for Population Biology, Imperial College at Silwood Park, SL5 7PY, Ascot, Berks, UK.
Oecologia. 1992 Aug;91(1):68-74. doi: 10.1007/BF00317243.
We investigated the species richness of 24 fig wasp (Hymenoptera) assemblages associated with southern African fig trees (Ficus species, Moraceae). Assemblage sizes ranged between 3 and 30 species on different host tree species, with parasitoids slightly outnumbering gall-forming phytophages. Ten potential taxonomic, geographic and ecological determinants of assemblage richness were examined. Galler richness differed significantly between taxonomic sub-groups of Ficus and was significantly correlated with several ecological characteristics of the host trees, but there was no species-area effect. Parasitoid richness was strongly correlated with galler richness. We conclude that both ecological and historical factors have combined to determine the numbers of species that form fig wasp assemblages.
我们调查了与南非无花果树（桑科榕属物种）相关的24种榕小蜂（膜翅目）组合的物种丰富度。不同寄主树种上的组合大小在3至30种之间，寄生蜂的数量略多于形成虫瘿的植食性昆虫。我们研究了组合丰富度的10个潜在分类学、地理学和生态学决定因素。榕属分类亚组之间的造瘿昆虫丰富度差异显著，并且与寄主树的几个生态特征显著相关，但不存在物种面积效应。寄生蜂丰富度与造瘿昆虫丰富度密切相关。我们得出结论，生态因素和历史因素共同决定了形成榕小蜂组合的物种数量。
