Rarity Can Be Key to Survival, Not Just Extinction

Tritonia nudibranch
This Tritonia nudibranch found in the Red Sea may be chronically rare. This species is generally seen only once every few years. (Flickr/prilfish)

Some species have always been rare — occurring in small densities throughout their range — throughout their evolutionary history. A perspective paper from in the journal Ecology Letters suggests that for many species, rarity is not a guarantee of impending extinction. Instead, the traits that enable some species to be rare may hold the ticket to their survival. Read more at UC Davis News.

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