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Habitat Fragmentation, Degradation, and Population Status of Endangered Michelia coriacea in Southeastern Yunnan, China
Tang, Cindy Q.1; He, Long-Yuan1; Gao, Zherui2; Zhao, Xing-Feng3; Sun, Wei-Bang3; Ohsawa, Masahiko4
Corresponding AuthorTang, CQ (reprint author), Yunnan Univ, Inst Ecol & Geobot, Kunming 650091, Peoples R China
2011-11-01
Source PublicationMOUNTAIN RESEARCH AND DEVELOPMENT
ISSN0276-4741
Volume31Issue:4Pages:343-350
AbstractThe endangered tree Michelia coriacea Chang et B. L. Chen (Magnoliaceae) is endemic to southeastern Yunnan, China. It is found in limestone outcrop habitats in a few localities at 1300-1700 m. Its habitat has been severely fragmented and degraded by overexploitation, including logging, road construction, and agricultural development in recent decades, with only 4 populations remaining at present. The population dynamics of M. coriacea are practically unknown. We investigated all 4 populations and studied the demography and ecology to create a scientific base for recommendations on conservation and restoration of the species. The census was repeated in 5 consecutive years from 2006 to 2010. Over that period, the annual mortality rate was 68.9% during early recruitment (individuals under 70 cm high), but mortality decreased to 23.3% after seedling/sapling establishment. The population of M. coriacea is clearly declining. The major factor threatening its continued existence is poor regeneration caused by ecological conditions, including habitat destruction, invasive plants, and low recruitment. Unless conservation measures are undertaken, the species will not maintain its natural population. The information provided here will apply to conservation of not only M. coriacea but also other plants having similar population dynamics and growing in unprotected areas in fragile mountain ecosystems.
KeywordMichelia Coriacea Population Structure Habitat Destruction Mortality Regeneration Conservation China
Subject AreaEnvironmental Sciences & Ecology ; Physical Geography
DOI10.1659/MRD-JOURNAL-D-11-00004.1
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Physical Geography
WOS SubjectEnvironmental Sciences ; Geography, Physical
WOS IDWOS:000298349900008
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/5249
Collection资源植物与生物技术所级重点实验室
Affiliation1.Yunnan Univ, Inst Ecol & Geobot, Kunming 650091, Peoples R China
2.Yunnan Acad Tobacco Sci, Kunming 650106, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
4.Univ Malaya, Inst Biol Sci, Fac Sci, Kuala Lumpur 50603, Malaysia
Recommended Citation
GB/T 7714
Tang, Cindy Q.,He, Long-Yuan,Gao, Zherui,et al. Habitat Fragmentation, Degradation, and Population Status of Endangered Michelia coriacea in Southeastern Yunnan, China[J]. MOUNTAIN RESEARCH AND DEVELOPMENT,2011,31(4):343-350.
APA Tang, Cindy Q.,He, Long-Yuan,Gao, Zherui,Zhao, Xing-Feng,Sun, Wei-Bang,&Ohsawa, Masahiko.(2011).Habitat Fragmentation, Degradation, and Population Status of Endangered Michelia coriacea in Southeastern Yunnan, China.MOUNTAIN RESEARCH AND DEVELOPMENT,31(4),343-350.
MLA Tang, Cindy Q.,et al."Habitat Fragmentation, Degradation, and Population Status of Endangered Michelia coriacea in Southeastern Yunnan, China".MOUNTAIN RESEARCH AND DEVELOPMENT 31.4(2011):343-350.
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