Spatial distribution and impacts of climate change on Milicia excelsa in Benin,West Africa

来源 :林业研究(英文版) | 被引量 : 0次 | 上传用户:matrix521
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
African teak (Milicia excelsa (Welw.) C.C.Berg) is an endangered multi-use species.Understanding the impact of climate change on the distribution of this spe-cies may improve the ability to anticipate or recognize its decline or expansion and to take appropriate conservation measures if necessary.Ecological niche modeling was pro-jected in geographical space to study the current and future distribution of M.excelsa in Benin.MaxEnt was used to estimate the potential geographic distribution of the species under two Representative Concentration Pathways (RCP).Miroc 5 summaries and two RCP 4.5 and RCP 8.5 scenarios were used as predictor variables for projections of the geo-graphic potential of this species.The performance of the model was assessed by the area under the curve (AUC),true skill statistics (TSS) and partial receiver operating character-istics (Partial ROC).From the results,M.excelsa was more a secondary species in the Guinean climatic zone and part of the Sudanian-Guinean and Sudanian climatic zone.The pro-jections show a significant decrease in suitable habitats for the species from the two RCP scenarios.Only a part of the Guinean climatic zone remained suitable and few protected areas will conserve in situ M.excelsa.For the sustainable conservation of M.excelsa,it is essential to strengthen the protection of sacred forests located in the Guinean climatic zone.
其他文献
【摘 要】朗读是初中语文教学中的必需环节,在目前的初中语文课堂教学中,存在着“多讲少读,时间不足”,“指导无方,效果不佳”等问题,严重影响了朗读的质量,本文结合自己多年的工作实践,通过分析存在于初中语文朗读中学生和教师容易出现的问题,并提出相应的对策,为我们初中语文朗读的优化提出自己的一点建议。  【关键词】初中语文;朗读;优化  古人曾经说过“书读百遍,其义自见” 随着现代教育的不断发展,教学方
Korean pine (Pinus koraiensis Siebold & Zucc.)in Northeastern China has been genetically improved to increase seed yields in addition to timber.To assess seed y
“我只是个小人物,我既不是英雄也不是斗士,我不想和任何人斗,作为一个前民警,我在网络上发表文章,我认为这是尽我的工作职责,我对得起曾经穿过的这身警服” “I’m just a
“师姐,我唱得怎么样?”在演出后增城市政府为歌手们“暖身”的庆功宴上,不少年轻歌手围住了董文华,请她为自己的表演提意见。“看到他们,就像看到了自己的当年。”董文华笑
崔如琢崔如琢,1944年生于北京。1981年定居美国。美籍华人。1984年获美国纽约杜威大学艺术学博士学位。曾任教于中央工艺美术学院,现任中华名人协会副主席兼中华名人书画院院
会议
高海燕,吉林省长春市103中学校长,中国民主促进会会员,中学高级教师。她用独特的教育理念和特色鲜明的管理艺术,在教育事业的广袤天空中尽展英姿 Gao Haiyan, Changchun 103
Wi-Fi 是无线保真(Wireless Fidelity)的缩写,其核心的 WLAN(Wi-Fi 仅指802.11b 标准,WLAN 则可分别采用802.11b 及802.11b+标准)目前正得到迅速地推广,这除了运营商的大力