英和和英

出典:『Wikipedia』 (2010/12/01 22:37 UTC 版)

英語による解説

引用

A hybrid zone exists where the ranges of two interbreeding species meet. For a hybrid zone to be stable, the offspring produced by the cross (the hybrids) have to be less fit than members of the parent species, although this condition does not need to be met in the very first hybrid generation (F1 hybrid which can exhibit hybrid vigour). Some hybrid zones move, typically at a rate of 0.1-10 metres per year.