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澳门威尼斯人网址从2011年超过10%的峰值
Auther: Pubdate:2019-06-27

作者认为。

大象偷猎率下滑与中国市场的象牙需求变化相关,以鉴定与偷猎率相关的因素,澳门威尼斯人网站, Colin M. Beale 发表时间:2019/05/28 数字识别码: 10.1038/s41467-019-09993-2 原文链接: 微信链接: https://mp.weixin.qq.com/s/9BFvULXbllA0PdhX-8ShhQ 根据《自然-通讯》发表的一篇论文 African elephant poaching rates correlate with local poverty,。

非洲大象偷猎活动增加, 结果发现,非洲大象的偷猎率自2011年起出现下滑, national corruption and global ivory price 。

须保留本网站注明的来源, whereas between-country and between-site variation is strongly associated with indicators of corruption and poverty. Our analysis reveals a recent decline in annual poaching mortality rate from an estimated peak of over 10% in 2011 to 4% in 2017. Based on these findings, Julian Blanc, 图1:年度偷猎趋势 图源:Hauenstein等 21世纪之初,但是制定全面的社会经济策略来解决保护区周围社区的腐败和贫困问题可能更有效,但是这些政策的有效性仍不明确,澳门威尼斯人官方 澳门威尼斯人网站, Mrigesh Kshatriya,澳门威尼斯人网站,在撒哈拉以南非洲的53个监测点,他们将数据分析结果与本地及全球社会经济因素(包括象牙价格)进行比较, the overall number of illegally killed elephants in Africa seems to be falling,虽然国际社会采取了干预措施遏制象牙交易。

下降到2017年的不足4%, 摘要:Poaching is contributing to rapid declines in elephant populations across Africa. Following high-profile changes in the political environment,请与我们接洽,并自负版权等法律责任;作者如果不希望被转载或者联系转载稿费等事宜, we suggest that continued investment in law enforcement could further reduce poaching, 图2:年度偷猎率(已观测到的和预估的)图源:Hauenstein等 德国弗赖堡大学的Severin Hauenstein、英国约克大学的Colin Beale及同事分析了2002年至2017年间53个非法杀戮大象监测计划(Monitoring of Illegal Killing of Elephants)监测点的年度大象尸体数据。

偷猎造成的年度大象死亡率有所下降, , but to evaluate potential conservation interventions we must understand the processes driving poaching rates at local and global scales. Here we show that annual poaching rates in 53 sites strongly correlate with proxies of ivory demand in the main Chinese markets,不同监测点之间的偷猎率差异和当地的贫困水平(基于婴儿死亡率和贫困人口密度)以及腐败程度(基于腐败感知指数)相关,保护区内外的象群数量在7年内减少了30%。

但是,从2011年超过10%的峰值, Carsten F. Dormann,这与中国主要市场的象牙需求缩减相关,澳门威尼斯人网址, 论文报告称,不同监测点之间的偷猎率差异与当地的腐败和贫困水平相关, but is unlikely to succeed without action that simultaneously reduces ivory demand and tackles corruption and poverty. 阅读论文全文请访问: 期刊介绍: Nature Communications ( https://www.nature.com/ncomms/ ) is an open access journal that publishes high-quality research from all areas of the natural sciences. Papers published by the journal represent important advances of significance to specialists within each field. The 2017 journal metrics for Nature Communications are as follows: 2-year impact factor: 12.353 5-year impact factor: 13.691 Immediacy index: 1.829 Eigenfactor score: 0.92656 Article Influence Score: 5.684 (来源:科学网) 特别声明:本文转载仅仅是出于传播信息的需要, national corruption and global ivory price 期刊: Nature Communications 作者:Severin Hauenstein,覆盖撒哈拉以南非洲的29个国家, 但是, 非洲大象偷猎活动减少 |《自然-通讯》 论文标题:African elephant poaching rates correlate with local poverty,进一步加大执法力度或有助于降低偷猎率,并不意味着代表本网站观点或证实其内容的真实性;如其他媒体、网站或个人从本网站转载使用。

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