ydinlajien
Ydinlajien, a Finnish term often translated as "core species" or "key species," refers to species that play a disproportionately large role in the structure and function of an ecosystem. These species can influence their environment in numerous ways, often through their feeding habits, habitat modification, or competitive interactions. Their presence or absence can significantly alter the diversity, abundance, and interactions of other organisms within the ecosystem.
The concept of ydinlajien is closely related to the idea of keystone species, though it may encompass
Habitat-forming species, like corals in a reef or trees in a forest, can also be considered ydinlajien