Biodiversity Science ›› 2019, Vol. 27 ›› Issue (6): 677-682.doi: 10.17520/biods.2019045

• Research Bulletin • Previous Article     Next Article

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:2019-05-28
  • Liu Yan E-mail:tracy-moss@hotmail.com

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

Fig. 1

Map of Dabashan and Wulingshan priority areas for biodiversity conservation in Chongqing"

Table 1

Threatened bryophytes in Dabashan and Wulingshan priority areas for China biodiversity conservation in Chongqing"

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

Fig. 2

Bryophyte families with more than 10 species and their species percentages in Dabashan (a) and Wulingshan (b) priority areas for biodiversity conservation in Chongqing"

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