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研究人员称，大型食草哺乳动物，如大象和犀牛曾漫步欧洲大陆，它们的存在促进了覆盖了森林和牧场的土地的可持续利用和生物多样性的保存。研究人员认为，如今，与之类似的自我调节的生态系统可以再次被引入欧洲国家的公园。
一个丹麦研究团队在美国国家科学院院刊上发表报告，用甲虫化石绘制了一幅古老生态系统的画面。
研究人员关注的甲虫物种是与过去的大型哺乳动物或林生环境中的大型哺乳动物有关的所有金龟子科甲虫。
分析显示这些类型的甲虫更多的出现在132,000至110,000年前的间冰期，而不是在农业时代来临前约10,000至5,000年前的当代间冰期。
Large grazing mammals such as elephants and rhinoceroses once roamed through Europe, and their presence contributed to sustainable and biodiverse landscape made up of forests and rangeland, and a similar self-managing ecosystem could be reintroduced in Europe's national parks today, researchers contend.
Writing in the Proceedings of the National Academy of Sciences, a research team from Denmark reports on their use of fossilized beetles to paint a picture of ancient ecosystems.
The beetle species the researchers focused on were all types of dung beetles associated with large mammals of the past or with woodlands environments.
The analysis revealed that these sorts of dung beetles were much more present in the interglacial period that occurred between 132,000-110,000 years ago than they were before the arrival of agriculture in the present interglacial period, roughly 10,000-5,000 years ago.
(Source: http://www.natureworldnews.com/articles/6239/20140304/reintroducing-elephants-and-rhinos-to-europe-could-be-good-for-ecosystem.htm)
一个丹麦研究团队在美国国家科学院院刊上发表报告，用甲虫化石绘制了一幅古老生态系统的画面。
研究人员关注的甲虫物种是与过去的大型哺乳动物或林生环境中的大型哺乳动物有关的所有金龟子科甲虫。
分析显示这些类型的甲虫更多的出现在132,000至110,000年前的间冰期，而不是在农业时代来临前约10,000至5,000年前的当代间冰期。
Large grazing mammals such as elephants and rhinoceroses once roamed through Europe, and their presence contributed to sustainable and biodiverse landscape made up of forests and rangeland, and a similar self-managing ecosystem could be reintroduced in Europe's national parks today, researchers contend.
Writing in the Proceedings of the National Academy of Sciences, a research team from Denmark reports on their use of fossilized beetles to paint a picture of ancient ecosystems.
The beetle species the researchers focused on were all types of dung beetles associated with large mammals of the past or with woodlands environments.
The analysis revealed that these sorts of dung beetles were much more present in the interglacial period that occurred between 132,000-110,000 years ago than they were before the arrival of agriculture in the present interglacial period, roughly 10,000-5,000 years ago.
(Source: http://www.natureworldnews.com/articles/6239/20140304/reintroducing-elephants-and-rhinos-to-europe-could-be-good-for-ecosystem.htm)