Vertical gradient in bryophyte diversity and species composition in tropical and subtropical forests in Yunnan, SW China

	Vertical gradient in bryophyte diversity and species composition in tropical and subtropical forests in Yunnan, SW China
	Shen, Ting 1,2; Corlett, Richard T.1; Song, Liang 3; Ma, Wen-Zhang4 ; Guo, Xin-Lei 2,5,6; Song, Yu 1; Wu, Yi 2,3
	2018-11-01
发表期刊	JOURNAL OF VEGETATION SCIENCE
ISSN	1100-9233
卷号	29 期号:6 页码:1075-1087
摘要	Questions We sampled epiphytic bryophytes along the entire vertical gradient, from tree base to upper canopy, in tropical and subtropical forests in order to answer the following questions: (a) how do diversity, composition and life forms differ between forests; (b) how do communities change along the vertical gradient in each forest; (c) what are the likely environmental drivers of this; and (d) what is the conservation significance of the results? Location Canopy crane sites in tropical lowland seasonal rain forest (TRF) and subtropical montane moist forest (STF) in Yunnan, southwest China. Methods Bryophytes were sampled from 1,600-2,400 cm(2) of bark surface in 14 vertical segments in three canopy layers on 142 trees, using canopy cranes. Microclimate was measured at five levels on the crane towers. Diversity was compared within and between forests using ANOVA. NMDS was used to compare species composition and assess potential drivers. Results In total, 184 species were recorded in 106 genera and 39 families. STF had a richer bryoflora than TRF. More species occurred in the canopy than the sub-canopy and understorey in both sites. The fan life form was dominant in the lower two layers of both forests, while mats were more common in the canopy of TRF and tall turfs in STF. The main axis of variation in species composition was associated with the vertical gradient of declining humidity and vapour pressure, and increasing temperature, light and wind speed. Conclusions This study demonstrates the value of canopy cranes for complete sampling of the epiphytic bryoflora in complex forests. Both forest types had very high species richness, reflecting the diversity of microhabitats along the vertical gradient. Observed and projected climate change may threaten this bryoflora as a result of rising temperatures and, in some areas, declining rainfall and fog frequency.
关键词	biodiversity canopy conservation epiphytic bryophytes life forms species composition species richness vertical gradient
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/64357
专题	中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者	Corlett, Richard T.; Song, Liang
作者单位	1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Menglun, Mengla, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Forest Ecol, Kunming, Yunnan, Peoples R China 4.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, Kunming, Yunnan, Peoples R China 5.Univ Amsterdam, Inst Biodivers & Ecosyst Dynam, Dept Ecosyst & Landscape Dynam, Amsterdam, Netherlands 6.Forschungszentrum Julich, Inst Bio & Geosci, Agrosphere IBG 3, Julich, Germany
推荐引用方式 GB/T 7714	Shen, Ting,Corlett, Richard T.,Song, Liang,et al. Vertical gradient in bryophyte diversity and species composition in tropical and subtropical forests in Yunnan, SW China[J]. JOURNAL OF VEGETATION SCIENCE,2018,29(6):1075-1087.
APA	Shen, Ting.,Corlett, Richard T..,Song, Liang.,Ma, Wen-Zhang.,Guo, Xin-Lei.,...&Wu, Yi.(2018).Vertical gradient in bryophyte diversity and species composition in tropical and subtropical forests in Yunnan, SW China.JOURNAL OF VEGETATION SCIENCE,29(6),1075-1087.
MLA	Shen, Ting,et al."Vertical gradient in bryophyte diversity and species composition in tropical and subtropical forests in Yunnan, SW China".JOURNAL OF VEGETATION SCIENCE 29.6(2018):1075-1087.