Comparison of habitats and seasonally differentiated distribution patterns of fig wasp populations associated with Ficus racemosa in Xishuangbanna

Abstract

Abstract: The population distribution patterns of fig wasps associated with Ficus racemosa in Xishuangbanna were studied by using several indexes.The results indicated that the distribution patterns of 6 fig wasp species were all clump.The aggregative intensity of pollinating wasp (Ceratosolen fusciceps) population at primeval rain forest was nearly equal to that at seriously disturbed site,whereas they were both much higher than that at moderately disturbed site.In the meanwhile,the population aggregative intensity for the same wasp species was higher in rainy season than in dry-hot season,and the lowest was occurred in foggy-cool season.Non-pollinating wasp (Platyneura testacea,Platyneura mayri,Platyneura agraensis,Apocrypta westwoodi,Apocrypta sp.) population and each of their sex group were varied significantly in aggregative intensity,responding to the habitat change and seasonal alteration.The protection of original habitat should be focused on the protection of the mutualism of Ficus racemosa and fig wasps.

Key words: Ficus racemosa, Fig wasps, Population distribution pattern, Mutualism, Environment selective pressure, Xishuangbanna

CLC Number:

S718.7

ZHANG Guangming, GU Haiyan, SONG Qishi, XU Lei, PENG Yanqiong, YANG Darong. Comparison of habitats and seasonally differentiated distribution patterns of fig wasp populations associated with Ficus racemosa in Xishuangbanna[J]. Chinese Journal of Applied Ecology, 2004, (4): 627-633.

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