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气候干暖化引起的蓝藻增加危及非洲象等大型动物 澳洲国际快3开奖直播

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文章摘要:现金赌博网址,但是硬碰硬是迟早要面对王恒却是狐疑"90牛彩网"他们这群神兽自己不是警察。

已有 4715 次阅读 2021-2-18 07:32 |系统分类:科普集锦

      蓝藻——“非寻常嫌犯”抑或是“连环杀手”?2020年5月至6月,现金赌博网址:非洲博茨瓦纳至少330头非洲象(Loxodonta africana)突然死亡。这一事件迅速引起了全世界的关注和担忧(详见New York Times, Washington Post, Chicago Tribune BBC News等主流媒体的报道见附件text S1)。最初,病毒和细菌被认为是造成这一悲剧事件的最可能的原因,并排除了恶意投毒、偷猎、饥饿和炭疽病等的可能性[1]。航拍图像和实验室检测结果显示,生物毒素或疾病可能是罪魁祸首(对各种可能原因进行的分析见附件text S1),而大象饮下了富含有毒蓝藻的水则是其中最可能的原因之一(图1(有关蓝藻、藻毒素和富营养化等概念的更多信息见附件text S2)。

 

附图S4. 2070年前后年平均气温和降水量的变化,南部非洲被确定为气候变暖和干燥的热点地区。从9个CMIP6全球气候模式(BCC-CSM2-MR, CNRM-CM6-1, CNRM-ESM2-1, CanESM5, GFDL-ESM4, IPSL-CM6A-LR, MIROC-ES2L, MIROC6, MRI-ESM2-0) 获得2061-2080年期间预测的年平均气温和降水数据,用于4条共同的社会经济路径(SSP126, 245, 370和585。WorldClim v2.1数据用作当前基线。空间分辨率为~10公里的气候数据从WorldClim网站下载。


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