VARIATION OF FUNCTIONAL CLONAL TRAITS ALONG ELEVATION IN TWO FERN SPECIES

被引:0
|
作者
Song, Yao-Bin [1 ]
Chen, Ling-Yun [1 ]
Xiong, Wei [1 ]
Dai, Wen-Hong [1 ]
Li, Wen-Bing [1 ]
Dong, Ming [1 ]
机构
[1] Hangzhou Normal Univ, Key Lab Hangzhou City Ecosyst Protect & Restorat, Hangzhou 310036, Zhejiang, Peoples R China
关键词
Dicranopteris dichotoma; Diplopterygium glaucum; Clonal plants; Ramet population; LIFE-HISTORY EVOLUTION; MORPHOLOGICAL PLASTICITY; NUTRIENT AVAILABILITY; BIOMASS ALLOCATION; GROWTH; LIGHT; HERB; POPULATION; RHIZOMES; PLANTS;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Phenotypical plasticity is generally considered among adaptive strategies by which plants can cope with environmental variation in space and time. Although much is known about plasticity in seed plants in terms of functional clonal traits while little is known about ferns. Variation of functional clonal traits of two ferns Dicranopteris dichotoma and Diplopterygium glaucum among plots differing in elevation in a subtropical evergreen broad-leaved forest in southern China was investigated. Along with elevation increasing the two fern species showed similar variation pattern of functional clonal traits: stable spacer length, increasing specific spacer length and decreasing spacer weight per ramet and specific spacer weight. The two ferns species had similar variation pattern of ramet performance traits but different variation pattern of ramet population properties. These results suggest an evolutionary trade-off between functions of foraging for and storing of resources in the two ferns, with a functional preference for the foraging in response to environmental change.
引用
收藏
页码:247 / 253
页数:7
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