From phylogenetic to functional originality. Guide through indices and new developments
In biodiversity studies a species is often classified as original when it has few closely related species, a definition
that reflects its phylogenetic originality. More recently, studies have focussed on biological or functional traits
that reflect the role(s) that species play within communities and ecosystems. This has led many studies to an
alternative evaluation of species’ originality: its functional originality. Most indices of species' originality were