Jarome Ali just led a new paper on bird extinctions,  using  hypervolume  methods to assess how functional diversity varies for almost all species of birds under different extinction risks. This was part of his masters’ work and is an important contribution.
White-necked Rockfowl (Picathartes gymnocephalus): a morphologically distinctive species threatened with extinction. Credit: Joe Tobias

Read the article, or the journal summary, or check out the press coverage.