de Fowler Neira, L. E., & Johnson, M. K. (1985). Diets of giant tortoises and feral burros on volcan alcedo, galapagos. Journal of Wildlife Management, 49, 165–169. |
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Pop. 2.25%
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Hansen, R. M., Johnson, M. K., & van Devender, T. R. (1976). Foods of the desert tortoise, gopherus agassizii, in arizona and utah. Herpetologica, 32, 247–251. |
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Pop. 2%
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