Paul G. Allens Vulcan Inc. today announced the results of the $7 million, three-year Great Elephant Census1 , the first-ever pan-African survey of savanna2 elephants using standardized3 data collection and validation4 methods. Managed by Elephants Without Borders the immense projects report confirms substantial declines in elephant numbers over just the last decade. The researchers report that the current rate of species decline is 8 percent per year, primarily due to poaching. The Pan-African survey shows the estimated savannah elephant population to be 352,271 within the 18 countries surveyed to-date, representing at least 93 percent of savannah elephants in these countries. For savannah elephant populations in 15 of the GEC countries, for which repeat counts were available, populations declined by 30 percent between 2007 and 2014. 84 percent of the population surveyed was sighted in legally protected areas compared to 16 percent in unprotected areas. However, large numbers of carcasses were observed in many protected areas indicating that elephants are struggling both within and outside of parks. Experts say the ivory trade and poaching pose serious threats and there is now a risk that savannah elephants could disappear from parts of Africa. The scientific report of the GEC findings was published on August 31, in the peer-reviewed open access journal PeerJ and is freely accessible at https://peerj.com/articles/2354/The GEC team used the most accurate, up-to-date counting and statistical5 methods to analyze6 data, accurately7 determining the number and distribution of the great majority of African savanna elephants and this now provides a baseline on a continental8 scale for future surveys and trend analyses, that wildlife ecologists will be able to use to coordinate9 conservation efforts.Overall, 90 scientists, six non-governmental organization partners, and two advisory10 partners, managed by a team at Paul Allens Vulcan Inc. collaborated11 in the work. These included the organizations Elephants Without Borders, the Wildlife Conservation Society, the Nature Conservancy, Frankfurt Zoological Society, African Parks Network and the advisory groups Save the Elephants and the International Union for Conservation of Natures African Elephant Specialist Group. The effort was conducted which partnered with in country park biologists, rangers12, and game wardens13.
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1 census n.人口调查，人口普查 参考例句： A census of population is taken every ten years.人口普查每10年进行一次。 The census is taken one time every four years in our country.国内每四年一次人口普查。
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