Species, subspecies and ex situ conservation Species, subspecies and ex situ conservationv. 27134–140Ryder, O., Shaw, J. H., and Wemmer, Christen M. 1988. "Species, subspecies and ex situ conservation." International Zoo Yearbook, 27 134–140.More...ID: 69923Type: articleKeywords: conservation; CRC; zoo; NZP