Effects of global warming and ecosystem disturbance on ecosystem service and its related human society : multiscale approach

采用不同的方法，对多尺度现象得到了不同的结果。1)采集蒙古色楞格河流域和琵瓦湖东岸小赫比苏纳河样品的沉积有机质和颗粒有机质，分析其515N和513C值。结果表明，515N与流域人口密度呈显著正相关。2)通过对近50年东京和大阪两种蝴蝶分布资料的调查，明确了两种蝴蝶的分布和行为。3)对两种城市蝴蝶进行了种群遗传学（AFLP）研究。4)利用分子生物学技术研究了阿育鱼对紫外线辐射变化的响应。5)研究了约翰人饮食习惯的考古证据，重点是海鱼。6)对阿拉斯加湾鲑鱼种群动态进行了实地调查，总结了长期种群动态。

By using several kinds of methodlogy, a variety of results were obtained over the multiscale phenomena.1)Sedimentary organics and particulate organic matter were collected and analyzed their 515N and 513C values for the samples from Selenga River Watershed, Mongolia and the small Hebisuna River in the eastern coast of Lake Biwa. It was clearly demonstrated that the 515N exhibited significant correlation(positive) with population density of the corresponding catchment.2)The distributions and behaviors of two kinds of butterflies were clarified in Tokyo and Osaka by the investigation of the distribution data during past 50 years.3)For two kinds of butterflies which inhabit in the urban areas were studied with emphasis on population genetics(AFLP method).4)Response of Ayu-fish to the variation of ultraviolet radiation was investigated by using molecular biological techniques.5)Archaeological evidence on for the food habit of Johmon people were studied with emphasis on marine fish.6)Fields surveys were conducted on the population dynamics of salmon in Alaska Bay and then a long-term population dynamics were summarized.