Typhenn A. Brichieri-Colombi, Natasha A. Lloyd, Jana M. McPherson, Axel Moehrenschlager, Limited contributions of released animals from zoos to North American conservation translocations… (2018)
“ Captive breeding by zoos was more likely to contribute to North American releases for amphibians (42%) , terrestrial invertebrates (29%) , mammals (19%) , and birds (17%) than reptiles (15%) , fish (2%) , or marine invertebrates (0) . Of the 54 zoos involved, 50 were in North America and 4 in Europe. Of the North American Zoos, 42 were AZA accredited, representing only 18% of 230 AZA institutions. ”
