生物多样性保护优先区对重庆苔藓植物多样性保护的重要性

doi:10.17520/biods.2019045

摘要/Abstract

摘要：

生物多样性保护优先区的生物多样性十分丰富, 对于生物多样性保护具有重要意义。本文基于野外调查数据和文献资料, 整合大巴山和武陵山两个中国生物多样性保护优先区重庆境内的苔藓植物名录, 通过分析物种丰富度、中国特有种和受威胁物种, 比较了这两个地区的苔藓植物组成特点和相似性。结果显示, 两个保护优先区重庆境内共有苔藓植物77科221属722种, 其物种数分别占重庆市和中国苔藓植物总种数的76.0%和23.9%。两个区域分布有中国特有苔藓植物56种, 占中国苔藓植物总种数的1.9%; 分布有极危苔藓植物1种、濒危4种和易危3种。科、属、种的Jaccard相似性系数分别为0.7、0.6和0.3, 表明两个区域物种组成差异较大。大巴山和武陵山两个中国生物多样性保护优先区都具有较高的苔藓植物物种多样性, 其种类组成具有一定代表性, 对重庆市和中国苔藓植物多样性保护具有重要价值。

关键词: 苔藓植物, 生物多样性, 物种丰富度, 大巴山, 武陵山

Abstract:

Biodiversity is especially rich in conservation priority areas. Based on field investigations and available literature, a bryophyte checklist was compiled for the Dabashan and Wulingshan conservation priority areas in Chongqing, China. Species richness and abundance of endemic and threatened species were analyzed. Species compositions were also compared between the two areas. In total, 722 species in 221 genera and 77 families were recorded across the two areas, accounting for 76.0% and 23.9% of all bryophyte species in Chongqing and in China, respectively. Among these, 56 species are endemic to China. One critically endangered (CR), four endangered (EN) and three vulnerable (VU) bryophytes were also found in the two areas. The Jaccard similarity coefficients between the two areas were calculated to be 0.7, 0.6 and 0.3 at the family, genus and species levels, respectively, indicating the big difference of species composition. Dabashan and Wulingshan both have relatively high bryophyte diversity and representative species composition. They are important priority areas not only for Chongqing, but also for overall biodiversity conservation in China.

Key words: bryophytes, biodiversity, species richness, Dabashan, Wulingshan

刘艳, 杨钰爽. 生物多样性保护优先区对重庆苔藓植物多样性保护的重要性[J]. 生物多样性, 2019, 27(6): 677-682.

Liu Yan, Yang Yushuang. Importance of conservation priority areas for bryophyte biodiversity in Chongqing[J]. Biodiv Sci, 2019, 27(6): 677-682.

图/表 3

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编号 No.	等级 Category	种名 Species	分布 Distribution	保护优先区 Priority areas
1	极危 Critically Endangered	滇西高领藓 Glyphomitrium minutissimum	南川金佛山 Mt. Jinfo, Nanchuan	武陵山 Wulingshan
2	濒危 Endangered	无脊耳叶苔 Frullania sinosphaerantha	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
3	濒危 Endangered	圆叶叶苔 Jungermannia orbicularifolia	酉阳大板营 Dabanying, Youyang	武陵山 Wulingshan
4	濒危 Endangered	卷叶木灵藓 Orthotrichum revolutum	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
5	濒危 Endangered	西藏墙藓 Tortula thomsonii	南川金佛山 Mt. Jinfo, Nanchuan	武陵山 Wulingshan
6	易危 Vulnerable	带叶牛舌藓 Anomodon perlinguatus	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
7	易危 Vulnerable	短齿疣鳞苔 Cololejeunea sphaerodonta	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
8	易危 Vulnerable	圆基耳叶苔 Frullania wangii	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan

编号 No.	等级 Category	种名 Species	分布 Distribution	保护优先区 Priority areas
1	极危 Critically Endangered	滇西高领藓 Glyphomitrium minutissimum	南川金佛山 Mt. Jinfo, Nanchuan	武陵山 Wulingshan
2	濒危 Endangered	无脊耳叶苔 Frullania sinosphaerantha	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
3	濒危 Endangered	圆叶叶苔 Jungermannia orbicularifolia	酉阳大板营 Dabanying, Youyang	武陵山 Wulingshan
4	濒危 Endangered	卷叶木灵藓 Orthotrichum revolutum	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
5	濒危 Endangered	西藏墙藓 Tortula thomsonii	南川金佛山 Mt. Jinfo, Nanchuan	武陵山 Wulingshan
6	易危 Vulnerable	带叶牛舌藓 Anomodon perlinguatus	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
7	易危 Vulnerable	短齿疣鳞苔 Cololejeunea sphaerodonta	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan
8	易危 Vulnerable	圆基耳叶苔 Frullania wangii	城口大巴山 Mt. Dabashan, Chengkou	大巴山 Dabashan