Lisääntyvien

Lisääntyvien is a Finnish grammatical form, the genitive plural of the present active participle lisääntyvä, which is derived from the verb lisääntyä meaning to increase, multiply, or reproduce. As a participial form, lisääntyvä can function as an adjective in noun phrases or as part of a larger noun phrase in scientific or descriptive writing. The form lisääntyvien specifically marks genitive plural, indicating possession or relation to a plural noun.

In Finnish grammar, the present active participle lisääntyvä behaves like an adjective and agrees with the head noun in number and case. The base participle tema adds -vä to the verb stem, and when declined for plural genitive, it becomes lisääntyvien. This form is used before a head noun in phrases such as lisääntyvien lajien suojelutoimenpiteet (conservation measures for increasing species) or lisääntyvien tapahtumien seuranta (monitoring of increasing events).

Common usage notes include that lisääntyvien is typically found in written Finnish, especially in scientific, ecological, or demographic contexts where the speaker describes changes over time or growth in a set of entities. Because it is a participial form, lisääntyvien can be part of longer noun phrases and often accompanies nouns in genitive to indicate the exact relationship of “increasing” to the head noun.

Etymologywise, lisääntyvä comes from lisääntyä, with lisääntyvän and lisääntyvien reflecting standard Finnish participle inflection for singular and plural genitive, respectively. See also Finnish grammar, present active participle, and noun phrase construction.