Compensation and plasticity in an invasive plant species

被引：106

作者：

Claridge K. ^{[1
]}

Franklin S.B. ^{[1
]}

机构：

[1] Department of Biology, University of Memphis, Memphis, TN 38152

来源：

Biological Invasions | 2002年 / 4卷 / 4期

关键词：

Compensation; Life history; Microstegium vimineum; Nutrients; Resource allocation plasticity; Shading;

D O I：

10.1023/A:1023671006342

中图分类号：

学科分类号：

摘要：

Plant plasticity under varying resources is one character that contributes to competitiveness and invasibility. The plasticity of plant modules of the invasive Japanese stilt grass (Microstegium vimineum) was examined under different light and nutrient levels using a balanced field and greenhouse study. Ample light and nutrients resulted in the greatest biomass accumulation in all plant modules. However, M. vimineum showed extreme plasticity, producing stolons and flowers (reproductive structures) under a wide range of environmental conditions except infertile, low light. The addition of nutrients under various shading regimes compensated for lower light levels, rendering little change in the allocation of carbon to reproductive structures. Data from the field study corroborate the greenhouse results, but also suggest plasticity in response to competition.

引用

页码：339 / 347

页数：8

共 36 条

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