| Cairncross, B. L., & Greig, J. C. (1977). Note on variable incubation period within a clutch of eggs of the leopard tortoise geochelone pardalis chelonia cryptodira testudinidae. South African Journal of Zoology, 12, 255–256. |
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| Added by: Admin 25 Aug 2008 20:36:51 UTC |
Pop. 2.25%
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| Greig, J. C., & de Villiers, A. L. (1982). The geometrical tortoise - symptom of a dying ecosystem. J. Bot. Soc. S. Afr., 68(4), 106–108. |
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| Added by: Admin 24 Aug 2008 18:46:34 UTC |
Pop. 2%
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| Greig, J. C. (1984). Conservation status of south african land tortoises, with special reference to the geometric tortoise (psammobates geometricus). Amphibia-Reptilia, 5(1), 27–30. |
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| Last edited by: Beate Pfau 28 Oct 2009 08:07:02 UTC |
Pop. 2.5%
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| Greig, J. C., & Burdett, P. D. (1976). Patterns in the distribution of southern african terrestrial tortoises (cryptodira: testudinidae). South African Journal of Zoology, 11(2), 249–273. |
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| Last edited by: Beate Pfau 19 Dec 2009 08:52:29 UTC |
Pop. 2%
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| Greig, J. C., & Boycott, R. C. (1980). The eastern cape - a tortoise paradise. East. Cape Nat., 69, 8–10. |
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| Last edited by: Beate Pfau 19 Oct 2008 18:06:24 UTC |
Pop. 2%
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| Greig, J. C. (1978). Our land tortoises. African Wildlife, 32, 39–42. |
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| Added by: Admin 25 Aug 2008 20:39:15 UTC |
Pop. 2.5%
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