DETERMINANTS OF SPECIES RICHNESS IN SOUTHERN AFRICAN FIG WASP ASSEMBLAGES

被引:97
作者
COMPTON, SG [1 ]
HAWKINS, BA [1 ]
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,NERC,CTR POPULAT BIOL,ASCOT SL5 7PY,BERKS,ENGLAND
关键词
AGAONIDAE; COSPECIATION; FIGS; FICUS; GALLS;
D O I
10.1007/BF00317243
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
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.
引用
收藏
页码:68 / 74
页数:7
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