查詢結果分析
相關文獻
- Community Structure and Functional Organization of Aquatic Insects in an Agricultural Mountain Stream of Taiwan: 1985-1986 and 1995-1996
- Changes in Spatial and Temporal Patterns of Aquatic Insect Community Structures in a Polluted Stream of Taiwan
- 醫院中環境微生物監測的檢驗方法介紹
- Assessment of Landslide Hazard Areas for Chichiawan Creek Watershed in Central Taiwan
- 生物監測法於環境污染監測之應用
- 濱水區植生緩衝帶配置之研究
- 貝類生物指標在環境變遷及污染評估上的應用
- 七家灣溪櫻花鉤吻鮭族群數量變動的研究
- DNA修補蛋白於生物監測上之應用
- 藥試所毒理研究之SPF動物房微生物監測系統(3)--寄生蟲監測系統
頁籤選單縮合
題 名 | Community Structure and Functional Organization of Aquatic Insects in an Agricultural Mountain Stream of Taiwan: 1985-1986 and 1995-1996=七家灣溪水棲昆蟲之群聚結構及功能組成:1985-1986和1995-1996 |
---|---|
作 者 | 謝森和; 楊平世; | 書刊名 | 動物研究學刊 |
卷 期 | 39:3 2000.07[民89.07] |
頁 次 | 頁191-202 |
分類號 | 387.7 |
關鍵詞 | 生物監測; 農業活動; 功能攝食群; 七家灣溪; Biological monitoring; Agricultural activities; Functional feeding groups; Chichiawan stream; |
語 文 | 英文(English) |
中文摘要 | 本研究的目的是以四個採樣站之水棲昆蟲的群聚結構及功能組成,來瞭解流經武凌農場的七家灣溪在1985-1986及1995-1996這兩年調查期間,此河流底質及水質的變化情形。比較1987-1988與1995-1996的水質資料,在這段期間,此河流底質及水質的變化情形。比較1985-1986及1995-1996水棲昆蟲的種類數和個體數,並將所有採樣站的樣本一起分析時,發現這兩種參數在統計上有顯著差異常(p<0.05)。一般而言,這四採樣站的水棲昆蟲種類數及個體數在1985-1986均較1995-1996為高。而且在1985-1986比在1995-1996有較高相對比例的Baetis spp.、Rhitrogena ampla、Cincticostella fusca和Uenoa taiwanensis,顯示流經農業活動區的河流棲地品質有惡化的現象。以百分比相似性方法(percentage similarity analysis)分別分析水棲昆蟲的功能攝食群及群聚成分,得到相類似的結果,也就是在1995-1996的第一、二採樣站與1985-1986年第四採樣站之功能組成及群聚成分相類似,然而第四站卻是位於七家灣溪和有勝溪的匯流處,此站遭受人為的影響最為嚴重。此外,由基本成份的分析(principal component analysis)結果指出,在這河段除了底質的特性外,水溫、溶氧、導電度、及氨均是影響水棲昆蟲群聚結構最重要的因子,而且位於農業區的採樣站水質較差。總之,本研究結果顯示在這10年的監測期間,此段河流的水質並無繼續惡化的情形,但是河流棲地的品質並無改善,且有惡化的現象。 |
英文摘要 | Changes in stream water and habitat quality of Chichiawan Stream, which flows through Wulin Farm in central Taiwan, were examined using community structure and functional organization of aquatic insects at 4 sites in 1985-1986 and 1995-1996. Long-term records of water chemistry for the study area indicate that water quality in 1995-1996 had not deqraded as compared with data in 1987-1988. It was found that there significant differences in the number of taxa and number of individuals per sample unit for samples at all sites combined between 1985-1986 than in 1995-1996 at the 4 sites. Hither relative abundances of Baetis spp., Rhithrogena ampla, Cincticostella fusca, and Uenoa taiwanensis were found in 1985-1986 compared to 1995-1996. suggesting that the substrate quality of the stream had deteriorated at sites located in agricultural areas. Similar results were found between the taxonomic and functional feeding group analyses when the percentage similarity analysis was used. The functional organization and community comosition of aquatic insects at sites 1 and 2 1995-1996 were similar to those at site 1 in 1985-1986. Site 4 is located downstream of the confluence between Chichiawan Stream and Yousheng Stream where the stream watershed has been developed for agricultural land use. Principal component analysis (PCA) indicated that, in addition to the substrate quality of the stream, water temperature, dissolved oxygen, conductivity, and ammonia were the most important pysicochemical variables shaping the aquatic insect community structure in the study stream reach. The study sites in agricultural areas had poorer stream water and habitat quality. The raw cropping of orchards and vegetable farms greatly increased soil erosion and suspended solids inputs to the stream which may have been harmful to the aquatic insect communities. |
本系統中英文摘要資訊取自各篇刊載內容。