Hawkins Bradford A, Diniz-Filho José Alexandre Felizola, Weis Arthur E
Department of Ecology and Evolutionary Biology, University of California, Irvine, California 92697, USA.
Am Nat. 2005 Nov;166(5):E140-3. doi: 10.1086/491686. Epub 2005 Oct 13.
The mid-domain effect (MDE) has been proposed as a null model for diversity gradients and an explanation for observed patterns. Here we respond to a recent defense of the concept, explaining that it cannot represent a viable model in either real or null worlds. First, the MDE misrepresents the nature of species ranges. There is also an internal logical inconsistency underlying the MDE because the range size frequency distribution, necessary to generate a hump-shaped pattern under randomization, cannot exist in the absence of environmental gradients and is generated by the ecological and historical processes that the MDE claims to exclude.
中域效应（MDE）已被提出作为多样性梯度的零模型以及对观察到的模式的一种解释。在此，我们回应近期对该概念的辩护，解释其在现实世界或零模型世界中都不能代表一个可行的模型。首先，中域效应错误地表述了物种分布范围的本质。中域效应还存在内在逻辑不一致性，因为在随机化情况下产生驼峰状模式所需的分布范围大小频率分布，在没有环境梯度时无法存在，且是由中域效应声称要排除的生态和历史过程所产生的。
