Habitat Fragmentation, Degradation, and Population Status of Endangered Michelia coriacea in Southeastern Yunnan, China

doi:10.1659/MRD-JOURNAL-D-11-00004.1

	Habitat Fragmentation, Degradation, and Population Status of Endangered Michelia coriacea in Southeastern Yunnan, China
	Tang, Cindy Q.1; He, Long-Yuan 1; Gao, Zherui 2; Zhao, Xing-Feng 3; Sun, Wei-Bang3 ; Ohsawa, Masahiko 4
通讯作者	Tang, CQ (reprint author), Yunnan Univ, Inst Ecol & Geobot, Kunming 650091, Peoples R China
	2011-11-01
发表期刊	MOUNTAIN RESEARCH AND DEVELOPMENT
ISSN	0276-4741
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
学科领域	Environmental Sciences & Ecology ; Physical Geography
DOI	10.1659/MRD-JOURNAL-D-11-00004.1
收录类别	SCI
语种	英语
WOS记录号	WOS:000298349900008
引用统计
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
推荐引用方式 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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