6. In making taxonomic distinctions, a higher percentage of within-population genetic variance does not necessarily negate smaller percentages of between-population variances. If the between-population variances, however small, influence morphology, appearance, and yes even behaviour, they can qualify as separate genetic lineages. Which can and is often referred to as “race”. But nowadays we prefer using functionally significant descriptors. “Ecotype”. “Sub-Population”. “Meta-Population”. “Morphotype”. There are lots of others. As an ecologist, I am even permitted to make up my own!
I have a starfish species sitting in my research lab that I could, if I choose to, split up into subspecies, OR additional species, OR strains. Heck I could even call them races! I doubt THAT would get past the peer-review committee, however. Ha Ha.