populaatiojen

Populaatiojen is the genitive plural form of the Finnish noun populaatio, which means population. The term is used in contexts where something pertains to or belongs to multiple populations. In scientific and academic Finnish, populaatiojen expresses relationships such as size, structure, dynamics, or differences across several populations.

In practice, populaatiojen appears in phrases like populaatiojen koko (the size of populations), populaatiojen rakenne (the structure of populations), or populaatiojen vaihtelu (the variation among populations). The form is typically found in ecology, biology, demography, population genetics, epidemiology, and sociology, where comparisons or aggregations across more than one population are common. It is distinct from the nominative plural populaatiot, which simply denotes multiple populations as subjects.

Linguistically, populaatio on loanword from Latin populatio, and its use in Finnish follows standard rules for forming the genitive plural of nouns ending in -io. The exact spelling of the genitive plural may vary with style or historical usage, but populaatiojen is widely accepted in contemporary Finnish for the genitive plural.

See also: populaatio, population genetics, demography, ecology. Notes on terminology may differ between scientific fields; when writing in Finnish, it is common to specify the exact population level or context to clarify what the genitive plural refers to in a given sentence.