Definitions

[Resha Caner]

A clarification please. If evolution is "change in allele frequency in populations over time," what is the definition of a population?

If I sample a group of sparrows in May and then a rival gang of sparrows takes over that territory in June, killing off the original group with no mingling, the allele's might change, but I don't think that constitutes evolution.

 

[The Barbarian]

A clarification please. If evolution is "change in allele frequency in populations over time," what is the definition of a population?

A group of organisms of one species that interbreed and live in the same place at the same time

If I sample a group of sparrows in May and then a rival gang of sparrows takes over that territory in June, killing off the original group with no mingling, the allele's might change, but I don't think that constitutes evolution.

Two populations, not a single one. See the definition.