Dolph Schluter and Don McPhail are at the Dept of Zoology, University of British Columbia, Vancouver, BC, Canada V6T I Z2.
Trends Ecol Evol. 1993 Jun;8(6):197-200. doi: 10.1016/0169-5347(93)90098-A.
Ecological character displacement is implicit in current views of adaptive radiation, but examples are few. The paucity of cases may be partly a problem of detection: statistical tests require that a consistent pattern of displacement be observed over independent lineages, yet opportunities for such replication may be few. Recent studies of fish in postglacial lakes and lizards on Caribbean islands reveal multiple speciation events accompanied by equivalent patterns of ecological and morphological divergence. These studies provide a wealth of new examples of apparent character displacement, and show that adaptive radiations may unfold in a predictable sequence.
生态特征替代在适应性辐射的现有观点中是隐含的,但例子很少。这种情况的缺乏可能部分是检测问题:统计测试要求在独立的谱系中观察到一致的位移模式,但这种复制的机会可能很少。最近对冰川后湖泊中的鱼类和加勒比岛屿上的蜥蜴的研究揭示了多次伴随生态和形态差异的物种形成事件。这些研究提供了大量明显特征替代的新例子,并表明适应性辐射可能会按照可预测的顺序展开。