A preliminary assessment of extinction risk from six species in the genus Pternopetalum based on herbarium specimen data

doi:10.3724/SP.J.1003.2012.08059

Abstract

Abstract:

Based on parameters established by the IUCN red list, including extent of occurrence, area of occupancy, numbers of subpopulations and location, we investigated the extinction risk of six species from the genus Pternopetalum. Our results indicated that the six species are threatened; P. leptophyllum is critical endangered, P. rosthornii is endangered, and P. tanakae, P. vulgare, P. molle and P. delavayi are vulnerable. For IUCN red list assessment, herbarium specimens are most important, sometimes an only data source, in getting quantitative parameters. It is practically an irreplaceable data source when assessment activity covering large scale area and huge species number. However, herbarium specimen bear with innate bias in estimating quantitative parameters, which resulted effect for assessment need further study.

Key words: Apiaceae, China, IUCN Red List, conservation biology, Pternopetalum

Lisong Wang*, Lina Zhao, Haining Qin. A preliminary assessment of extinction risk from six species in the genus Pternopetalum based on herbarium specimen data[J]. Biodiv Sci, 2012, 20(6): 761-768.

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URL: https://www.biodiversity-science.net/EN/10.3724/SP.J.1003.2012.08059

https://www.biodiversity-science.net/EN/Y2012/V20/I6/761

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物种 Species	标本总数/地标化标本/非重复分布点 Number of specimens/ specimens georeferenced/ Non-repeated locations*	亚种群数目 Number of subpopulations*	分布范围 EOO (km²)*	占有面积 AOO (km²)*				等级 Category	评估说明 Notes for assessment
物种 Species		亚种群数目 Number of subpopulations*	分布范围 EOO (km²)*	1×1	2×2	4×4	10×10
东亚囊瓣芹 P. tanakae	323/234/91	2	2,260,000	90	352	1,408	8,300	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
五匹青 P. vulgare	358/309/104	1	1,442,000	104	412	1,648	10,100	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
洱源囊瓣芹 P. molle	136/121/53	1	1,155,000	52	208	832	5,100	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
澜沧囊瓣芹 P. delavayi	418/351/64	2	921,000	63	252	1,008	6,300	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
川鄂囊瓣芹 P. rosthornii	89/81/10	6	109,000	10	40	160	1,000	EN B2	分布范围广泛, EOO>20,000 km², AOO<500 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<500 km², Almost all mature individuals in a single subpopulation.
薄叶囊瓣芹 P. leptophyllum	65/33/1	1	<100	n/a	n/a	n/a	n/a	CR B2ab (i, ii, iii, iv)+ D	分布范围小, EOO<100 km², AOO<10 km², 分布点≤5, 种群非常小, 成熟个体数目<50, 极端条件下, 单一的威胁事件(比如暴雨导致的山体坍塌或滑坡)有可能造成种群的完全消失。 EOO<100 km², AOO<10 km², Locations≤5, small population, mature individuals<50, under extreme conditions, this species will disappear when a single event happens (collapsed or landslide etc.).

物种 Species	标本总数/地标化标本/非重复分布点 Number of specimens/ specimens georeferenced/ Non-repeated locations*	亚种群数目 Number of subpopulations*	分布范围 EOO (km²)*	占有面积 AOO (km²)*				等级 Category	评估说明 Notes for assessment
物种 Species		亚种群数目 Number of subpopulations*	分布范围 EOO (km²)*	1×1	2×2	4×4	10×10
东亚囊瓣芹 P. tanakae	323/234/91	2	2,260,000	90	352	1,408	8,300	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
五匹青 P. vulgare	358/309/104	1	1,442,000	104	412	1,648	10,100	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
洱源囊瓣芹 P. molle	136/121/53	1	1,155,000	52	208	832	5,100	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
澜沧囊瓣芹 P. delavayi	418/351/64	2	921,000	63	252	1,008	6,300	VU B2ab (i, ii, iii, iv)+ C2a(ii)	分布范围广泛, EOO>20,000 km², AOO<2,000 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<2,000 km², Almost all mature individuals in a single subpopulation.
川鄂囊瓣芹 P. rosthornii	89/81/10	6	109,000	10	40	160	1,000	EN B2	分布范围广泛, EOO>20,000 km², AOO<500 km², 几乎所有成熟个体在单个亚种群中。 EOO>20,000 km², AOO<500 km², Almost all mature individuals in a single subpopulation.
薄叶囊瓣芹 P. leptophyllum	65/33/1	1	<100	n/a	n/a	n/a	n/a	CR B2ab (i, ii, iii, iv)+ D	分布范围小, EOO<100 km², AOO<10 km², 分布点≤5, 种群非常小, 成熟个体数目<50, 极端条件下, 单一的威胁事件(比如暴雨导致的山体坍塌或滑坡)有可能造成种群的完全消失。 EOO<100 km², AOO<10 km², Locations≤5, small population, mature individuals<50, under extreme conditions, this species will disappear when a single event happens (collapsed or landslide etc.).