出典:Wiktionary
出典:『Wiktionary』 (2025/10/07 17:12 UTC 版)
species complex (plural species complexes)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/29 09:00 UTC 版)
A species complex is a group of closely related species, where the exact demarcation between species is often unclear or cryptic owing to their recent and usually still incomplete reproductive isolation. Ring species, superspecies and cryptic species complex are example of species complex. Such groups of species with complex relationship between species may occur in a line undergoing rapid speciation or where such speciaton recently have occurred, so that species separation mechanisms has yet to be fully developed. In such cases speciation may leave some species paraphyletic at the species level.