Feeding Group Zonation of Ephemeroptera （Insecta） at Plalar-Gremeng River, Gunung Sewu Karst Ecosystem, Gunungkidul, Yogyakarta Special Province, Indonesia  

作　　者：Suwamo Hadisusanto Ari Kristanto 

机构地区：[1]Laboratory of Ecology and Conservation, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia

出　　处：《Journal of Environmental Science and Engineering(B)》2015年第12期631-636,共6页环境科学与工程（B）

摘　　要：The objectives of this research were to record the changes in composition of the community of ephemeroptera in Plalar-Gremeng river, examine the causes of these changes and discover their significance in the life of the rivers. The ephemeropteran community and abundance of the feeding group （detritivore, gatherer and scrapper） were compared with the nutrient and water quality of each sampling site. It is established that, under site conditions, nutrient status can be regarded as the chief internal factors. The method was field survey for sampling the substrate at five sites： （I） Up-stream of Plalar river; （2） The site before the Plalar cave; （3） The total dark zone of Plalar-Gremeng caves; （4） The site after Gremeng cave and （5） The down-stream of Gremeng to Beton river. Substrate sampling used Surber benthic sampler and the sample was containing and labeling. Environmental parameters were measured water temperature, carbon dioxide, velocity, pH, C-organic, sediment total-phosphorus and nitrogen and Ca content. The data was analyzed by description. The results showed that the abundance of ephemeroptera was highest at site-4 and the lowest at site-3. Ephemeropthera play a highly important role in preserving nutrient status.

关 键 词：Feeding group EPHEMEROPTERA Plalar-Gremeng river karst ecosystem Gunungkidul. 

分 类 号：Q969.21[生物学—昆虫学] P642.25[天文地球—工程地质学]