võõrliike

Võõrliike refers to alien species or non-native species in Estonian. The term can be applied in various contexts, including biology, ecology, and even in science fiction.

In biology and ecology, võõrliike specifically denotes invasive alien species. These are organisms that have been introduced by human activity, either intentionally or accidentally, to an area outside of their natural geographic range. If these species establish themselves in their new environment and spread, they can pose a threat to native biodiversity, ecosystem functions, and even human health or economy. Examples of invasive alien species found in Estonia include the spiny-cheeked crayfish, the giant hogweed, and the raccoon dog. The introduction and spread of such species can disrupt food webs, outcompete native flora and fauna for resources, and alter habitats.

The concept of võõrliike also appears in broader cultural and speculative discussions, particularly in science fiction literature, film, and other media. In this context, it refers to extraterrestrial life forms originating from other planets or galaxies. These fictional alien species are often depicted with diverse physical characteristics, cultures, and technological advancements, serving as narrative devices to explore themes of exploration, conflict, or interspecies relations.