https://scholars.lib.ntu.edu.tw/handle/123456789/94385
標題: | 全球變遷 - 福山森林生態系長期生態研究─颶風(颱風)干擾因子對台灣與美國長期生態研究站中節肢動物相之影響(2/3) | 作者: | 吳文哲 | 關鍵字: | 颶風;節肢動物;長期生態研究;干擾因子;Hurricane;Arthropod;LTER;Disturbances | 公開日期: | 2003 | 出版社: | 臺北市:國立臺灣大學昆蟲學系暨研究所 | 摘要: | 目前在福山的林冠層共採集到蜘蛛、 類、纓尾目、彈尾目、直翅目、纓翅目、 革翅目、半翅目、脈翅目、膜翅目、同翅 目、鞘翅目、鱗翅目、雙翅目等節肢動物, 以及其他少量的無脊椎動物,二月的採樣 中以同翅目的昆蟲在豐度上最高,約佔二 月林冠層採集標本數的60 %,顯示福山地 區的林冠層可能曾經受到干擾,不同樹種 間的昆蟲組成也有差異。以每克葉乾重的 蟲數作為標準化的豐度指標來看,植物的 物候對節肢動物的採集量會有影響,雖然 四月份的採集數量下降,但豐度指標卻有 略為提高的情形。不同地區的節肢動物數 量也會呈現不同的變化,特用植物區的節 肢動物變化量就相當明顯。此外,孔隙區 的節肢動物豐度指標變化在月份間並不明 顯,非孔隙區的豐度指標則在四月明顯下 降。樹種方面則是以長葉木薑子與柏拉木 上的節肢動物數量較高,其他種類上的節 肢動物數量在各重複間的變化較大,推測 是因植物的物候與昆蟲的分布形式有明顯 的影響。預期在不同寄主植物和干擾程度 下,會呈現出明顯不同的節肢動物群聚, 此外,各研究站的植物演替也會造成不同 的節肢動物有不同的優勢等級,例如演替 早期是以吸汁液的節肢動物為優勢,後期 則是以食葉性的節肢動物為主。 We have collected 5252 individuals from forest canopies in Fu-shan in February and April. These specimen belong to order Thysanura, Collembola, Orthoptera, Thysanoptera, Dermaptera, Hemiptera, Neuroptera, Hymenoptera, Homoptera, Coleoptera, Lepidoptera, Diptera, and other fewer invertebrates. Homoptera is the highest in abundance. About 60 % of specimens were Homoptera in samples collected in February. This result shows the canopy of Fu-shan forest should have been disturbed. Using numbers of arthropods per gram leaf dry weight as a standardized abundance index, the phenology of plants was also having some influence on the results of arthropod collections. Although the number of specimens declined, the index slightly increased in April. Different area would show different changes in arthropod abundance. Arthropod abundance changes dramatically between months in Special-used Botanical Garden. Besides, the difference of abundance index of arthropods in gap sites is insignificant, but decreased significantly in non-gap sites. Arthropod abundance on Litsea acuminata and Blastus cochichinensis were higher than other tree species, and the difference between replicates were also higher on other tree species. We expect to find distinct arthropod assemblages among different host plant species and disturbance levels. Besides, early successional stage at each site could show an arthropod dominance hierarchy that is distinct from that of late successional stage at each site, e.g., dominance by sap-sucking arthropods on early successional stage vs. dominance by folivores on late successional stage. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/29341 | 其他識別: | 912621B002001A10 | Rights: | 國立臺灣大學昆蟲學系暨研究所 |
顯示於: | 昆蟲學系 |
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912621B002001A10.pdf | 180.83 kB | Adobe PDF | 檢視/開啟 |
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