Biodiversity Science ›› 2015, Vol. 23 ›› Issue (4): 493-498.doi: 10.17520/biods.2013166

• Orginal Article • Previous Article     Next Article

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:2015-08-03
  • Huang Weichang E-mail:hwc_zx@126.com

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

Table 1

Number of species in Calanthe distributed in different provinces of China"

省/自治区
Province
种数
Number of species
香港 Hong Kong 3
陕西 Shaanxi 4
安徽 Anhui 4
浙江 Zhejiang 4
江西 Jiangxi 4
福建 Fujian 5
甘肃 Gansu 5
海南 Hainan 6
湖南 Hunan 6
重庆 Chongqing 7
湖北 Hubei 8
广东 Guangdong 11
广西 Guangxi 11
西藏 Tibet 11
四川 Sichuan 15
台湾 Taiwan 20
贵州 Guizhou 20
云南 Yunnan 36

Fig. 1

Map of geographic distribution of Calanthe in China"

Table 2

Assessed categories of Calanthe from China based on the IUCN Red List Categories and Criteria"

物种
Species
标本总号数
No. of specimen
等级
Category
泽泻虾脊兰 C. alismaefolia 77 无危 LC
长柄虾脊兰 C. alleizettei 2 濒危 EN (A1c+A4; B2ab(iii))
流苏虾脊兰 C. alpina 168 无危 LC
狭叶虾脊兰 C. angustifolia 8 易危 VU (A1c; B1ab(iii))
弧距虾脊兰 C. arcuata 38 无危 LC
银带虾脊兰 C. argenteostriata 17 易危 VU (A4; B1ab(iii))
翘距虾脊兰 C. aristulifera 4 濒危 EN (A1c+A2; B1ab(iii))
二裂虾脊兰 C. biloba 1 极度濒危 CR (A1c)
秉滔虾脊兰 C. bingtaoi 1 濒危 EN (B1a;D)
棒距虾脊兰 C. clavata 13 易危 VU (A1c; B1ab(iii))
剑叶虾脊兰 C. davidii 172 无危 LC
密花虾脊兰 C. densiflora 20 无危 LC
虾脊兰 C. discolor 46 无危 LC
独龙虾兰 C. dulongensis 3 极度濒危 CR (B1ab(iii))
天全虾脊兰 C. ecarinata 4 极度濒危 CR (B1ab(iii))
峨眉虾脊兰 C. emeishanica 2 极度濒危 CR (A1c; B1ab(iii))
天府虾脊兰 C. fargesii 3 极度濒危 CR (B1ab(iii))
福贡虾脊兰 C. fugongensis 5 极度濒危 CR (A1c; B1ab(iii))
钩距虾脊兰 C. graciliflora 35 无危 LC
通麦虾脊兰 C. griffithii 5 濒危 EN (A1c+A2;B2ab(iii))
叉唇虾脊兰 C. hancockii 85 无危 LC
疏花虾脊兰 C. henryi 4 极度濒危 CR (B1ab(iii))
西南虾脊兰 C. herbacea 8 濒危 EN (A1c+A4; B1ab(iii))
葫芦茎虾脊兰 C. labrosa 5 濒危 EN (A4; B1ab(iii))
肾唇虾脊兰 C. lamellosa 123 无危 LC
乐昌虾脊兰 C. lechangensis 2 极度濒危 CR (A1c, B1ab(iii))
开唇虾脊兰 C. limprichtii - 野外灭绝 EW
南方虾脊兰 C. lyroglossa 8 易危 VU (A1c;B1ab(iii))
细花虾脊兰 C. mannii 15 无危 LC
长距虾脊兰 C. masuca 49 无危 LC
墨脱虾脊兰 C. metoensis 5 濒危 EN (A1c; B1ab(iii))
南昆虾脊兰 C. nankunensis 1 极度濒危 CR (B1ab(iii))
戟形虾脊兰 C. nipponica 3 极度濒危 CR (B1ab(iii))
香花虾脊兰 C. odora 19 无危 LC
圆唇虾脊兰 C. petelotiana 2 濒危 EN (A1c+A4; B2ab(iii))
车前虾脊兰 C. plantaginea 6 濒危 EN (A1c+A4; B1ab(iii))
镰萼虾脊兰 C. puberula 153 无危 LC
囊爪虾脊兰 C. sacculata - 野外灭绝 EW
大黄花虾脊兰 C. sieboldii 1 濒危 EN (A1c+A2; B1ab(iii))
匙瓣虾脊兰 C. simplex 2 濒危 EN (A1c+A4; B2ab(iii))
中华虾脊兰 C. sinica 1 极度濒危 CR (A4; B1ab(iii))
二列叶虾脊兰 C. speciosa 8 濒危 EN (A1c)
三棱虾脊兰 C. tricarinata 284 无危 LC
裂距虾脊兰 C. trifida 1 极度濒危 CR (B1ab(iii))
三褶虾脊兰 C. triplicata 34 无危 LC
无距虾脊兰 C. tsoongiana 5 极度濒危 CR (A1c; B1ab(iii))
文山虾脊兰 C. wenshanensis 1 极度濒危 CR (B1a; D)
四川虾脊兰 C. whiteana 2 濒危 EN (A1c+A2;B1ab(iii))
药山虾脊兰 C. yaoshanensis 1 极度濒危 CR (A4;B1ab(iii))
峨边虾脊兰 C. yuana 2 极度濒危 CR (A4;B1ab(iii))
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