生物多样性 ›› 2019, Vol. 27 ›› Issue (6): 677-682.doi: 10.17520/biods.2019045

• 研究简报 • 上一篇    下一篇

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

刘艳(), 杨钰爽   

  1. 重庆师范大学生命科学学院, 重庆 401331
  • 收稿日期:2019-02-22 接受日期:2019-05-07 出版日期:2019-06-20
  • 通讯作者: 刘艳 E-mail:tracy-moss@hotmail.com
  • 基金项目:
    重庆市自然科学基金(cstc2016jcyjA0031);重庆市教委科学技术研究项目(KJ1703064)

Importance of conservation priority areas for bryophyte biodiversity in Chongqing

Liu Yan(), Yang Yushuang   

  1. College of Life Sciences, Chongqing Normal University, Chongqing 401331
  • Received:2019-02-22 Accepted:2019-05-07 Online:2019-06-20
  • Contact: Liu Yan E-mail:tracy-moss@hotmail.com

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

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

图1

大巴山和武陵山生物多样性保护优先区重庆境内的分布图"

表1

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受威胁苔藓植物"

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

图2

大巴山(a)和武陵山(b)生物多样性保护优先区重庆境内苔藓植物含10种以上的科及其物种所占比例"

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