非洲大猿类动物栖息地骤降

非洲大猿类动物栖息地骤降 精品文档 非洲大猿类动物栖息地骤降 非洲大猿类动物栖息地骤降 Greatapes,suchasgorillas,chimpsandbonobos,arerunningoutofplacestolive,sayscientists.科学家称，大猿类动 物(比如大猩猩、黑猩猩和倭黑猩猩)的生存之地即将耗尽。 Theyhaverecordedadramaticdeclineintheamountofhabitatsuitableforgreatapes,accordiGreat apes, such as gorillas, chimps and bonobos, are running out of places to live, say scientists.科学家称，大猿类动物(比如大 猩猩、黑猩猩和倭黑猩猩)的生存之地即将耗尽。 They have recorded a dramatic decline in the amount of habitat suitable for great apes, according to the first such survey across the African continent. Eastern gorillas, the largest living primate, have lost more than half their habitat since the early 1990s. Cross River gorillas, chimps and bonobos have also suffered significant losses, according to the study. Details are published in the journal Diversity and Distributions. Several studies either on a site or country level indicated already that African ape populations are under enormous pressure and in decline, said Hjalmar Kuehl, of the Max Planck Institute for Evolutionary 1 / 3 精品文档 Anthropology in Leipzig, Germany, who helped organise the research. But a wider perspective was missing; so various organisations and scientists joined to conduct the first continent-wide survey of suitable great ape habitat. Many of the authors have spent years to collect the data used in this study under extremely difficult conditions with a lot of personal netmitment, Dr Kuehl told BBC Nature. Nothing netparable exists. The scientists conducted the survey in two stages. First, they determined the exact location of more than 15,000 sites where the various species and subspecies of African great ape have been confirmed living during the past twenty years. We then evaluated the environmental conditions at these locations and at all other locations across tropical Africa where great ape presence was not confirmed. This assessment included for instance percentage forest cover, human population density or climatic conditions, said Dr Kuehl. From that the researchers could calculate the environmental conditions required for great apes to live. Then, using a statistical model, they predicted the amount of such habitat surviving across Africa, first for the 1990s, 2 / 3 精品文档 then the 2000s. 上一篇英语: 印度洋板块正在分裂下一篇英语: 癫痫已成为全球性疾病查看更多关于文教Education的文章网友同时还浏览了: 马达加斯加棕榈树面临灭绝危险 希拉里?曼特尔再度荣获布克文学 研究:久坐伤身体 社交网站关注前情人难治情伤 2012-2013世界最佳大学 加州理工 共同分担家务的夫妇离婚率高 3 / 3