[1]方炎明,张晓平,王中生.鹅掌楸生殖生态研究:生殖分配与生活史对策[J].南京林业大学学报(自然科学版),2004,28(03):071-74.[doi:10.3969/j.jssn.1000-2006.2004.03.018]
 FANG Yan-ming,ZHANG Xiao-ping,WANG Zhong-sheng.Reproductive Ecology of Liriodendron chinense:Reproductive Allocation and Life-history Strategy[J].Journal of Nanjing Forestry University(Natural Science Edition),2004,28(03):071-74.[doi:10.3969/j.jssn.1000-2006.2004.03.018]
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鹅掌楸生殖生态研究:生殖分配与生活史对策
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
28
期数:
2004年03期
页码:
071-74
栏目:
研究论文
出版日期:
1900-01-01

文章信息/Info

Title:
Reproductive Ecology of Liriodendron chinense:Reproductive Allocation and Life-history Strategy
文章编号:
1000-2006(2004)03-0071-04
作者:
方炎明;张晓平;王中生
南京林业大学森林资源与环境学院;江苏 南京 210037;南京林业大学森林资源与环境学院;江苏 南京 210037;南京林业大学森林资源与环境学院;江苏 南京 210037
Author(s):
FANG Yan-mingZHANG Xiao-pingWANG Zhong-sheng
College of Forest Resources and Environment Nanjing Forestry University,Nanjing 210037,China
关键词:
鹅掌楸生殖分配生活史对策r对策
Keywords:
Liriodendron chinenseReproductive allocationLife-history strategyr-strategy
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2004.03.018
文献标志码:
A
摘要:
<正>在鹅掌楸的营养生长和生殖两方面,资源不平衡分配。生殖和营养结构发育所需的资源位在时间上重叠。生殖包装和生殖分配格局显示,大种子稍优于小种子,资源被部分地用于提高种子散布适合度,资源限制结籽率假说不适合该树种。鹅掌楸的生活史特征表现为:初次结实年龄10a以上,为多次结实,可大量结实,种子中等大小;植物个体寿命达100a以上,有性生殖过程持续时间长。从生活史特征组合分析可知,鹅掌楸是需要迁移的种(即r 对策者)。
Abstract:
Resources are evenly allocated between reproductive and vegetative growth for Liriodendron chinense.Moreover,resource niches for reproductive vs vegetative structure developing are temporally overlapping.The patterns of reproductive package and resource allocation imply that large seeds are slightly advantageous over small ones.Resources seem to be partly partitioned to improve seed dispersal fitness.The hypothesis of resource limitation to seed-set does not occur in the species.The following life-history traits were recognized for L.chinense:(1)Possessing a high age of first fecundity(more than 10 years old);(2)Reproducing annually;(3)Reproducing in large quantity;(4)Possessing medial seeds;(5)Surviving for more than 100 years;(6) Maintaining a long stage of sexual reproduction.All these life-history traits suggest that L.chinense is a species with r-strategy.

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更新日期/Last Update: 1900-01-01