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Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)
其他题名mannual of IR1
Gao, Zerui1,2; Zhang, Changqin1; Milne, Richard I.3,4
2010
发表期刊AUSTRALIAN JOURNAL OF BOTANY
ISSN0067-1924
卷号58期号:3页码:214-223
摘要Craigia yunnanensis W. W. Sm. & W. E. Evans is an endangered canopy tree species distributed in southern China and northern Vietnam. We located and surveyed six remnant populations, all from subtropical areas of Yunnan, China. These six populations contained between 6 and 167 adult trees in 2007, plus larger numbers of seedlings and resprouts from cut trunks. Bulk seed samples were collected from these populations and examined for 10 fitness traits (e.g. seed number, seed length, width and 1000-seed weight, germination in the controlled light and darkness conditions and nursery, seedling height, root collar diameter and dry weight). All traits differed significantly among populations, but only number of seeds per capsule was significantly correlated with population size. For some populations, germination capacity in light was significantly higher than that in darkness, indicating that canopy removal might promote regeneration from seed. Examination of population size-class structures in four C. yunnanesis populations determined that small seedlings and resprouts are abundant, although very few of these reach even the sapling stage. Hence, the remaining populations could be expanded and conserved by allowing a proportion of seedlings and resprouts to reach maturity. However, ex situ conservation, informed by data from the present study, is also advisable in case the remaining wild populations are lost.
资助信息National Natural Science Foundation of China [30770139]; Forest Science and Technology Support Plan, China [2006BAD01A1806]; Yunnan Natural Science Foundation [2009DD001]
学科领域Plant Sciences
DOI10.1071/BT09190
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000277302900007
引用统计
被引频次:1[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/151853/13523
专题离退休
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland
4.Royal Bot Garden Edinburgh, Edinburgh EH3 5LR, Midlothian, Scotland
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Gao, Zerui,Zhang, Changqin,Milne, Richard I.. Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)[J]. AUSTRALIAN JOURNAL OF BOTANY,2010,58(3):214-223.
APA Gao, Zerui,Zhang, Changqin,&Milne, Richard I..(2010).Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae).AUSTRALIAN JOURNAL OF BOTANY,58(3),214-223.
MLA Gao, Zerui,et al."Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)".AUSTRALIAN JOURNAL OF BOTANY 58.3(2010):214-223.
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