Is there any specific criterion on which an area is designated as an ecoregion?
Ans. An ecoregion is selected on the following criteria • species richness (how many species occur in the ecoregion) • endemism (how many plants or animals are unique to the area or to the habitat) • higher taxonomic uniqueness (e.g., unique genera or families, relict species or communities, primitive lineages) • extraordinary ecological or evolutionary phenomena (e.g.