| Schramm, B. G., Lance, V. A., & Casares, M. (1999). Reproductive cycles of male and female giant tortoises (geochelone nigra) on the galapagos islands by plasma steroid analysis and ultrasound scanning. linnaeus fund research report. Chelonian Conservation and Biology, 3(3), 523–528. |
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| Added by: Admin 14 Aug 2008 20:40:50 UTC |
Pop. 2.25%
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| Schramm, B. G. (1998). Die galapagos-riesenschildkröte (geochelone nigra). Reptilia, 3(3), 20–25. |
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| Added by: Admin 14 Aug 2008 22:46:54 UTC |
Pop. 2.25%
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| Schramm, B. G., Casares, M., & Lance, V. A. (2000). Ultrasound scanning of ovaries and eggs in galapagos tortoises, geochelone nigra, on santa cruz island, galapagos. Chelonian Conservation and Biology, 3(4), 706–713. |
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| Added by: Admin 14 Aug 2008 20:40:50 UTC |
Pop. 3%
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| Schramm, B. G. (1993). (anatomie der landschildkröte). SIGS-Info, 1993(Dezember), 7–8 (Vortra. |
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| Added by: Sarina Wunderlich 23 Aug 2008 14:57:13 UTC |
Pop. 7.25%
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| Schramm, B. G., Casares, M., & Lance, V. A. (1999). Steroid levels and reproductive cycle of the galapagos tortoise, geochelone nigra, living under seminatural conditions on santa cruz island (galapagos). General and Comparative Endocrinology, 114(1), 108–120. |
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| Last edited by: Beate Pfau 04 Apr 2009 09:49:05 UTC |
Pop. 2.5%
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