Zoos through the lens of the IUCN Red List: a global metapopulation approach to support conservation breeding programs. - Conde, Dalia A.; Colchero, Fernando; Gusset, Markus; Pearce-Kelly, Paul; Byers, Onnie; Flesness, Nate; Browne, Robert K.; Jones, Owen R. (Zoo's Print, 2014)