中国科学院机构知识库网格系统: Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)

Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)

文献类型：期刊论文


作者	Gao, Zerui 1,2; Zhang, Changqin 1; Milne, Richard I.3,4
刊名	AUSTRALIAN JOURNAL OF BOTANY
出版日期	2010
卷号	58 期号:3 页码:214-223
ISSN号	0067-1924
DOI	10.1071/BT09190
其他题名	mannual of IR1
通讯作者	zhangchangqin@mail.kib.ac.cn
文献子类	Article
英文摘要	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.
学科主题	Plant Sciences
WOS关键词	INBREEDING DEPRESSION ; HABITAT FRAGMENTATION ; GENETIC CONSEQUENCES ; PROVENANCE VARIATION ; NEW-ZEALAND ; GERMINATION ; FITNESS ; FOREST ; TREES ; CONSERVATION
WOS研究方向	Plant Sciences
语种	英语
WOS记录号	WOS:000277302900007
资助机构	National Natural Science Foundation of China [30770139]; Forest Science and Technology Support Plan, China [2006BAD01A1806]; Yunnan Natural Science Foundation [2009DD001]
公开日期	2012-07-04
源URL	[http://ir.kib.ac.cn:8080/handle/151853/13523]
专题	昆明植物研究所_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
推荐引用方式 GB/T 7714	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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来源：昆明植物研究所

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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)

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