A COMPARATIVE APPROACH TO PREDICTING COMPETITIVE ABILITY FROM PLANT TRAITS
A COMPARATIVE APPROACH TO PREDICTING COMPETITIVE ABILITY FROM PLANT TRAITS
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DOI：
10.1038/334242a0
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发表时间：
1988-07-21
期刊：
影响因子：
64.8
通讯作者：
KEDDY, PA
中科院分区：
文献类型：
--
作者：
GAUDET, CL;KEDDY, PA
几十年来，群落生态学中种间竞争的研究已经产生了大量的特殊情况，但很少有一般原则1 -3。这在很大程度上是因为所使用的现象学、非预测性方法4。进一步的进展需要一种预测性的方法5，这将使一般原则能够推导出适用于特定研究或地点的物种和条件之外。一般原则是最好的寻求使用比较的方法，也就是说，大量的物种在标准化的实验条件下的系统筛选6，7我们使用了44种湿地植物来测试是否竞争能力可以从植物性状预测。多元线性回归分析表明，植株性状与竞争力之间存在较强的相关性（r2= 0.74）。植物生物量解释了竞争力变异的63%，株高、冠层直径、冠层面积和叶形解释了大部分剩余变异。这项研究代表了一个重要的步骤，在逃避目前的现象学方法竞争的社区生态学，并提供了一个一般的预测工具，研究竞争在自然社区。
Decades of study of interspecific competition in community ecology has yielded an overwhelming body of special cases but few general principles1–3. This is largely because of the phenomenological, non-predictive approach used4. Further progress requires a predictive approach5that will enable general principles to be deduced that apply beyond the species and conditions of a particular study or site. General principles are best sought using a comparative approach, that is, the systematic screening of a large number of species under standardized experimental conditions6,7We used 44 wetland plant species to test whether competitive ability could be predicted from plant traits. Multiple linear regression showed that there was a strong relationship between plant traits and competitive ability (r2= 0.74). Plant biomass explained 63% of the variation in competitive ability and plant height, canopy diameter, canopy area and leaf shape explained most of the residual variation. This study represents a major step in escaping the current phenomenological approach to competition in community ecology, and provides a general predictive tool for studying competition in natural communities.