國立臺灣大學昆蟲學系暨研究所楊平世2006-08-232018-06-292006-08-232018-06-292001http://ntur.lib.ntu.edu.tw//handle/246246/29337本年度研究計畫的目的是探討哈盆溪 大型無脊椎動物的群聚結構與功能組成， 並就此瞭解溪濱植物相與土地利用的情形 對大型無脊椎動物的群聚結構與功能組成 之影響。分別在福山植物園與哈盆保留區 內，依據溪濱植物相與土地利用的情形， 選擇7 個採樣站。結果顯示在大型無脊椎 動物的群聚結構方面，在本試驗期間共採 獲81 個種類(taxa)，以蜉蝣目及雙翅目的 種類為最多，其次為毛翅目。就個體的百 分比組成而言，則以蜉蝣目最優勢，尤其 在芒草區的採樣站更高達73％，其中又以 Baetis 屬的數量最多;而雙翅目的數量則次 之，佔約總個體數的11∼32％，Prosimulium sp.為此目中最主要的種類，主要分佈於人 工水生植物池下游的採樣站。在功能攝食 群的百分比組成方面，以聚集採食者及刮 食者的數量為最多，尤其刮食者在芒草區 更高達46％，過濾採食者則以在水生植物 池下游的幾個採樣站為最多。由試驗結果 得知溪濱植物相與土地利用的情形改變大 型無脊椎動物的群聚結構與功能組成，這 主要可能是因為能量來源與食物結構改變 所造成。另外毛翅目的種類雖然多，但在 本試驗區內並不是優勢的種類，在本研究 中亦有所討論。Changes in community structure and functional organization of macroinvertebrates were investigated to examine how riparian vegetation and land use influence macroinvertebrate distribution at 7 sites along the Hapen Creek, which flows through Fushan Forest in northern Taiwan. A modified Surber sampler (area = 50 x 50 cm2; mesh size = 250μm) were used to collect macroinvertebrates. A total of 81 taxa were collected during the sampling period. The taxonomic richness of Ephemeroptera and Diptera were most diverse and Trichoptera was the third diverse group. In general, the values of taxonomic richness decreased downstream. Baetids were the most numerous taxon and accounted for more than 73% of total individuals at site 6 which riparian vegetation was dominated by Miscanthus spp. Simuliids were the second numerous taxon and accounted for 13-26% of total individuals at site 3, 4, and 5 which were located at downstream of an impoundment. These three sites were also possessed the highest number of individuals. Among the 7 sampling sites, collector-gatherers and grazers were the most dominant functional feeding groups. Specially, site 6 was dominated by grazers and site 3, 4, and 5 by collector-filterers. These results suggested that riparian vegetation and land use influence macroinvertebrate community structure and functional organization. This may be due to 3 changes in energy and food sources of macroinvertebrates.application/pdf58376 bytesapplication/pdfzh-TW國立臺灣大學昆蟲學系暨研究所群聚結構功能組成溪濱植物相土地利用Community StructureFunctional OrganizationRiparian VegetationLand Use[SDGs]SDG15reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/29337/1/892621B002033A10.pdf