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
2011-11-01
发表期刊MOUNTAIN RESEARCH AND DEVELOPMENT
ISSN0276-4741
卷号31期号:4页码:343-350
摘要The 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.
关键词Michelia Coriacea Population Structure Habitat Destruction Mortality Regeneration Conservation China
资助信息Tokyo University of Information Sciences[S0801024]
学科领域Environmental Sciences & Ecology ; Physical Geography
DOI10.1659/MRD-JOURNAL-D-11-00004.1
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology ; Physical Geography
WOS类目Environmental Sciences ; Geography, Physical
WOS记录号WOS:000298349900008
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/5249
专题资源植物与生物技术所级重点实验室
作者单位1.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
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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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