生物多样性 ›› 2015, Vol. 23 ›› Issue (4): 493-498.DOI: 10.17520/biods.2013166

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基于标本和分布信息评估中国虾脊兰属 植物的濒危状况

黄卫昌*(), 周翔宇, 倪子轶, 邵丽   

  1. 上海辰山植物园, 上海 201602
  • 收稿日期:2015-04-07 接受日期:2015-06-05 出版日期:2015-07-20 发布日期:2015-08-03
  • 通讯作者: 黄卫昌
  • 基金资助:
    上海市绿化管理局科研专项(G092405)

An assessment of the extinction risk of Calanthe from China based on specimens and field observations

Weichang Huang*(), Xiangyu Zhou, Ziyi Ni, Li Shao   

  1. Shanghai Chenshan Botanical Garden, Shanghai 201602
  • Received:2015-04-07 Accepted:2015-06-05 Online:2015-07-20 Published:2015-08-03
  • Contact: Huang Weichang

摘要:

兰科植物是生物多样性保护的旗舰类群之一, 但如何客观准确地评估兰科植物的濒危状况, 一直是生物多样性保护中急需解决的问题。本文以中国虾脊兰属(Calanthe)植物为例, 探讨了基于馆藏标本和野外分布信息进行兰科植物红色名录濒危等级评估的利弊。我们的研究表明, 馆藏标本能够比较客观地反映物种地理分布信息和相应的野外居群状况, 但对于物种分布的历史变化和受威胁因素反映不足; 而野外工作对于物种的实际分布状况和受威胁因素等的反映比较客观, 但能发现的物种和居群数量有限, 部分极小种群物种在短时间野外工作中很难发现。我们的研究认为, 有2种虾脊兰属植物应被评估为野外灭绝(EW), 16种应被评估为极度濒危(CR)。可见, 中国虾脊兰属植物濒危的状况远比前人的评估结果要严重得多。

关键词: IUCN, Calanthe, 濒危状况评估, 保护生物学, 准确度

Abstract:

The orchid family is considered to be one of the flagship taxa of biodiversity conservation. It is very important to accurately assess the extinction risk of each species for the effective conservation. However, the assessment itself presents a challenge to conservation biology due to the biological features of orchids. Here we try to evaluate the accuracy of the assessment of the extinction risk of Calanthe from China based on both herbarium specimens and field observations. Our results indicate that static information regarding the geographic range and populations of Calanthe can be explored accurately from herbarium specimens, while information based on fieldwork is more accurate for assessing the living condition of each species but less effective for locating species and populations, especially very narrowly distributed species. As a result, two endemic species of Calanthe from China were assessed as Extinct in the Wild (EW), and 16 species identified as Critically Endangered (CR). By contrast, the dimensions of Calanthe from China threatened outnumber the existing research study.

Key words: IUCN Red List, Calanthe, risk assessment, orchid conservation, accuracy