The intermediate variety, consequently, will exist in lesser numbers from inhabiting a narrow and lesser area; and practically, as far as I can make out, this rule holds good with varieties in a state of nature.
Bitarteko aldakia, beraz, urriagoa izanen da, leku estuago eta txikiagoan bizi delako; eta praktikan, egiazta dezakeguneino, arau hau balioko da natur egoerako espezieetan.