摘要
为掌握极小种群广东含笑(Michelia guangdongensis)的种质资源现状并评估其濒危等级,本文对广东含笑原生地——广东石门台国家级自然保护区及其邻近地区进行了系统的野外调查。结果表明:(1)目前发现广东含笑有4个野外分布区,其中广东石门台国家级自然保护区红珠岩段和英德上天堂为首次报道。(2)船底顶是广东含笑最集中的分布区,种群数量最多,约有1,100株;英德上天堂种群数量最少,只有20株。(3)依据IUCN全球物种濒危等级评估标准,广东含笑应当被评为濒危(EN,B1a+B2a)。
To clarify the current status of Michelia guangdongensis germplasm resources and evaluate its endangerment category, a field investigation was conducted in Guangdong Shimentai National Nature Reserve and its adjacent regions. The results are as followings:(1) We found a total of four wild distribution areas for Michelia guangdongensis, with two(Guangdong Shimentai National Nature Reserve and Shangtiantang, Yingde) of first reports.(2) Chuandiding harbors the largest population with 1,100 individuals, whereas Shangtiantang, Yingde, the smallest, with only about 20 individuals.(3) According to the IUCN Global Species Threat Assessment Standard, Michelia guangdongensis was rated as Endangered(EN, B1a + B2a).
作者
杨蕾蕾
王文广
郎校安
张苏州
姚张秀
徐婷
李远球
严丹峰
杨建芬
王亚玲
张寿洲
Leilei Yang;Wenguang Wang;Xiaoan Lang;Suzhou Zhang;Zhangxiu Yao;Ting Xu;Yuanqiu Li;Danfeng Yan;Jianfen Yang;Yaling Wang;Shouzhou Zhang(Shenzhen Key Laboratory of Southern Subtropical Plant Diversity,Fairylake Botanical Garden,Shenzhen and Chinese Academy of Sciences,Shenzhen,Guangdong 518004;State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources,South China Agricultural University,Guangzhou 510642;Administration Bureau of Shimentai National Nature Reserve,Yingde,Guangdong 513000;Palm Eco-town Development Co.,Ltd.,Guangzhou 510627;Xi’an Botanical Garden,Xi’an 710061)
出处
《生物多样性》
CAS
CSCD
北大核心
2019年第9期1016-1020,共5页
Biodiversity Science
基金
国家林业局林业公益性行业科研专项(201504322)
关键词
极小种群
广东含笑
野外调查
濒危等级
种质资源
IUCN
extremely small populations
Michelia guangdongensis
field investigation
endangered category
germplasm resources
IUCN
