Bryophyte diversity and its threat status in Xishuangbanna

doi:10.17520/biods.2020216

Abstract

Abstract:

Aims: With more than 20,000 species recorded worldwide, bryophytes are no doubt the second largest higher plant group after angiosperms. We aim to understand the bryophyte diversity of Xishuangbanna, a key and hot spot region for biodiversity conservation in the world.

Methods: This study compile a checklist of bryophytes in Xishuangbanna based on literature collection and field investigation. Then, a preliminary analysis was made on the diversity and threat status of bryophytes in this region according to different red lists.

Results: The research results show that a total of 307 bryophyte specimens were collected in this field survey. Among them, 101 species belonging to 37 families, 70 genera including 5 newly recorded species (including infraspecific taxa) were finally identified. According to the complied bryophyte checklist, 661 species (including infraspecific taxa) belonging to 233 genera and 82 families were recorded in Xishuangbanna, accounting for 34.7% of the bryophytes in Yunnan Province and 20.5% in China. Among them, there are 200 liverworts belonging to 54 genera of 30 families, 12 hornworts belonging to 7 genera of 3 families, and 449 mosses belonging to 172 genera of 49 families, including 9 genera endemic to East Asia, one genus endemic to China, and 26 species endemic to China. The threatened statuses of bryophytes in Xishuangbanna were different in the red lists evaluated at different scales and different periods.

Conclusions: Bryophyte diversity in Xishuangbanna is likely to be underestimated; many more species may be discovered from further investigations in the future. This study provides a basis for further study on the flora, conservation and utilization of bryophytes in Xishuangbanna.

Key words: tropic, cryptogam, biodiversity, threat status, red list

Dongli Quan, Bin Yang, Wenzhang Ma, Liang Song, Ting Shen. Bryophyte diversity and its threat status in Xishuangbanna[J]. Biodiv Sci, 2021, 29(4): 545-553.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2020216

https://www.biodiversity-science.net/EN/Y2021/V29/I4/545

Figures/Tables 1

References 59

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序号 No.	优势科 Dominant families			优势属 Dominant genera
序号 No.	科 Family	属数 No. of genera	种数 No. of species	属名 Genus	种数 No. of species
1	细鳞苔科 Lejeuneaceae	12	57	凤尾藓属 Fissidens	27
2	蔓藓科 Meteoriaceae	16	34	耳叶苔属 Frullania	22
3	丛藓科 Pottiaceae	15	33	疣鳞苔属 Cololejeunea	21
4	凤尾藓科 Fissidentaceae	1	27	管口苔属 Solenostoma	20
5	青藓科 Brachytheciaceae	9	27	绢藓属 Entodontopsis	17
6	灰藓科 Hypnaceae	7	24	羽苔属 Plagiochila	13
7	耳叶苔科 Frullaniaceae	1	22	真藓属 Bryum	12
8	叶苔科 Jungermanniaceae	3	22	泽藓属 Philonotis	10
9	提灯藓科 Mniaceae	4	22	鹤嘴藓属 Pelekium	10
10	真藓科 Bryaceae	4	21	鞭苔属 Bazzania	9
11	羽藓科 Thuidiaceae	4	21	蓑藓属 Macromitrium	9
12				扁萼苔属 Radula	9
13				匐灯藓属 Plagiomnium	9
14				青藓属 Brachythecium	9
	总计 Total	76	310		197

序号 No.	优势科 Dominant families			优势属 Dominant genera
序号 No.	科 Family	属数 No. of genera	种数 No. of species	属名 Genus	种数 No. of species
1	细鳞苔科 Lejeuneaceae	12	57	凤尾藓属 Fissidens	27
2	蔓藓科 Meteoriaceae	16	34	耳叶苔属 Frullania	22
3	丛藓科 Pottiaceae	15	33	疣鳞苔属 Cololejeunea	21
4	凤尾藓科 Fissidentaceae	1	27	管口苔属 Solenostoma	20
5	青藓科 Brachytheciaceae	9	27	绢藓属 Entodontopsis	17
6	灰藓科 Hypnaceae	7	24	羽苔属 Plagiochila	13
7	耳叶苔科 Frullaniaceae	1	22	真藓属 Bryum	12
8	叶苔科 Jungermanniaceae	3	22	泽藓属 Philonotis	10
9	提灯藓科 Mniaceae	4	22	鹤嘴藓属 Pelekium	10
10	真藓科 Bryaceae	4	21	鞭苔属 Bazzania	9
11	羽藓科 Thuidiaceae	4	21	蓑藓属 Macromitrium	9
12				扁萼苔属 Radula	9
13				匐灯藓属 Plagiomnium	9
14				青藓属 Brachythecium	9
	总计 Total	76	310		197