台灣蟲癭寄主植物之類型分析

根據五年的全台植物蟲癭調查，在台灣總共採集到331種造癭的寄主植物，其中317種(95.8%)是雙子葉植物，包含86種特有種，佔雙子葉特有種總數的7.6%(86/1131)，和15種外來種佔雙子葉外來種的23%(15/652)。在蟲癭豐富度與植物科級種數的迴歸分析中，並無發現顯著相關性，可能係受到來自優勢產癭寄主植物科的影響。產癭的特有種、非特有原生種和外來種寄主植物之間的迴歸分析顯示：特有種寄主植物上的蟲癭類型較非特有原生種寄主有較高的差異性，且高於外來種寄主的蟲癭類型，證明台灣特有種植物上的蟲癭多樣性較非特有原生種高。在已檢視之台灣造癭植物中，草本植物與木本植物之蟲癭豐富度有別。原生種和外來種寄主植物上分別發現157及14類型的造癭昆蟲，大多數的寄主植物上只出現一種蟲癭，兩種蟲癭以上的寄主植物僅佔39.1%。在單一植物種上的蟲癭排名中，前五名的寄主植物均屬於樟科楨楠屬，並有81.3%的造癭昆蟲屬於癭蚋科。造癭昆蟲種化現象值得進一步深入研究。

關鍵字

蟲癭；寄主植物；特有種；非特有原生種；外來種

並列摘要

Three hundred and thirty-one species of galling hosts, including 86 endemic and 15 exotic plant species were investigated and collected in Taiwan. Among these records, 317 species are dicotyledons, comprising more than 90% of the total host-plant species, including 86 (7.6%) endemic species and 15 (2.3%) exotic species. To test the plant family hypothesis, regression analysis of plant family size and gall richness was conducted. No significant relationship was found between family size and gall richness which may have been caused by the effect of dominant galling hosts. The regression analysis on native, endemic, and exotic host species with gall diversity indicated the highest trend in endemic hosts. Another analysis showed that gall richness was different between herbs and woody hosts censused. Insect groups exploring endemic and exotic species tended to differ in that 157 morphospecific gallers were found on endemic species and 14 on exotic species. Most host-plants bore a single type of gall each species, and only 39.1% had more than 2 types. The top five most frequently occurred endemic hosts are Machilus (Lauraceae) and 81.3% of the gallers were Cecidomyiids. The result suggests that in-host speciation may have occurred in the Cecidomyiidae on Machilus.

並列關鍵字

insect gall ； host-plant ； endemic species ； non-endemic native species ； exotic species

被引用紀錄

李治逸（2007）。福山試驗林九種常見樹種的植食現象及葉部特性〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2007.01448

國際替代計量

台灣蟲癭寄主植物之類型分析

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