新研究支持达尔文物种间竞争假说

Georgia Tech School of Biology assistant professor Lin Jiang displays a microscopic image of a protist species he used to support Darwin’s hypothesis that the struggle for existence is stronger between more closely related species than those distantly related. Credit: Georgia Tech/Gary Meek

A new study provides support for Darwin's hypothesis that the struggle for existence is stronger between more closely related species than those distantly related. While ecologists generally accept the premise, this new study contains the strongest direct experimental evidence yet to support its validity

一项新研究支持了达尔文的物种间竞争假说。达尔文的系统发育限制相似性假设认为亲缘关系近的物种比亲缘关系远的物种生存竞争更激烈。虽然生物学家普遍接受该假说，但这是首次提供强有力的证据支持其有效性。乔治亚理工学院生物学院助理教授Lin Jiang称，他们的实验发现物种灭绝在亲缘关系较亲密的微生物之间发生更频繁，更迅速。