| 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. 2.25%
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| 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%
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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. 2.5%
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| Rostal, D. C., Wibbels, T., Grumbles, J. S., Lance, V. A., & Spotila, J. R. (2002). Chronology of sex determination in the desert tortoise (gopherus agassizii). Chelonian Conservation and Biology, 4(2), 398–405. |
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| Added by: Admin 14 Aug 2008 20:35:32 UTC |
Pop. 2.25%
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| Rostal, D. C., Grumbles, J. S., Lance, V. A., & Spotila, J. R. (1994). Non-lethal sexing techniques for hatchling and immature desert tortoises (gopherus agassizii). Herpetological Monographs, 8, 83–88. |
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| Last edited by: Beate Pfau 01 Mar 2009 08:12:25 UTC |
Pop. 2.25%
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| Rostal, D. C., Grumbles, J. S., Palmer, K. S., Lance, V. A., Spotila, J. R., & Paladino, F. V. (2001). Changes in gonadal and adrenal steroid levels in the leatherback sea turtle (dermochelys coriacea) during the nesting cycle. General and Comparative Endocrinology, 122(2), 139–147. |
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| Added by: Admin 13 Sep 2009 10:11:24 UTC |
Pop. 2.5%
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| Rostal, D. C., Grumbles, J. S., Lance, V. A., & Schumacher, I. , Effects of acute respiratory tract disease on reproduction in the desert tortoise, gopherus agassizii: hormones, egg production and hatchling success. Paper presented at Proceedings of a Conference on Health Profiles, Reference Intervals, and Diseases of Desert Tortoises. |
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| Last edited by: Beate Pfau 21 Dec 2012 09:06:01 UTC |
Pop. 4.25%
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| Rostal, D. C., Grumbles, J. S., & Lance, V. A. (2001). Reproduction and urtd in the desert tortoise (gopherus agassizii): an eight year follow-up. 26th Annual Meeting and Symposium of the Desert Tortoise Council. |
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| Added by: Admin 14 Aug 2008 22:46:54 UTC |
Pop. 3%
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| Rostal, D. C., Lance, V. A., Grumbles, J. S., & Alberts, A. C. (1994). Seasonal reproductive cycle of the desert tortoise (gopherus agassizii) in the eastern mojave desert. Herpetological Monographs, 8, 72–83. |
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| Added by: Sarina Wunderlich 23 Aug 2008 14:57:10 UTC |
Pop. 2.25%
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| Piña, C. I., Lance, V. A., Ferronato, B. O., Guardia, I., Marques, T. S., & Verdade, L. M. (2009). Heavy metal contamination in phrynops geoffroanus (schweigger, 1812) (testudines: chelidae) in a river basin, são paulo, brazil. Bulletin of Environmental Contamination and Toxicology, (epub. ahead of print). |
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| Added by: Admin 21 Nov 2009 11:53:21 UTC |
Pop. 3%
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| Morafka, D. J., Spangenberg, K. E., & Lance, V. A. (2001). Neonatology of reptiles. Herpetological Monographs, 14(1), 353–370. |
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| Added by: Admin 17 Aug 2008 18:17:22 UTC |
Pop. 2%
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| Lance, V. A., Rostal, D. C., & Grumbles, J. S. , Plasma corticosterone and androstenedione in male and female desert tortoises during the reproductive cycle. Paper presented at 23rd Annual Meeting and Symposium of the Desert Tortoise Council. |
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| Added by: Sarina Wunderlich 24 May 2009 21:32:29 UTC |
Pop. 3.5%
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| Lance, V. A., Grumbles, J. S., & Rostal, D. C. (2001). Sex differences in plasma corticosterone in desert tortoises, gopherus agassizii, during the reproductive cycle. Journal of Experimental Biology, 289(5), 285–289. |
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| Added by: Admin 17 Aug 2008 17:23:52 UTC |
Pop. 2.25%
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| Lance, V. A., & Rostal, D. C. (2001). Stress, corticosterone and testosterone in male desert tortoises. 26th Annual Meeting and Symposium of the Desert Tortoise Council. |
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| Added by: Sarina Wunderlich 24 May 2009 21:32:30 UTC |
Pop. 3%
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| Lance, V. A., Place, A. R., Grumbles, J. S., & Rostal, D. C. (2002). Variation in plasma lipids during the reproductive cycle of male and female desert tortoises, gopherus agassizii. Journal of Experimental Zoology, 293(7), 703–711. |
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| Added by: Admin 14 Aug 2008 20:35:29 UTC |
Pop. 2.25%
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| Lance, V. A. (1992). On the brink: the challenge of conservingthe world's endangered turtles (new technique for sexing juvenile turtles). Zoonoz, 65 (10), 14–15. |
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| Added by: Admin 23 Aug 2008 12:14:14 UTC |
Pop. 2.25%
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| Lance, V. A., & Rostal, D. C. (2002). Can we identify the sex of immature tortoises by fecal steroid assays? 26th Annual Meeting and Symposium of the Desert Tortoise Council. |
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| Added by: Sarina Wunderlich 24 May 2009 21:32:32 UTC |
Pop. 3%
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| Lance, V. A., & Morafka, D. J. (2001). Post natal lecithotroph: a new age class in the ontogeny of reptiles. Herpetological Monographs, 15, 124–134. |
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| Added by: Admin 21 Nov 2009 11:53:16 UTC |
Pop. 2%
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| Lance, V. A., & Rostal, D. C. (2002). The annual reproductive cycle of the male and female desert tortoise: physiology and endocrinology. Chelonian Conservation and Biology, 4(2), 302–312. |
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| Added by: Admin 14 Aug 2008 20:35:29 UTC |
Pop. 2%
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| Lance, V. A. (1997). Sex determination in reptiles: an update. American Zoologist, 37, 54–513. |
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| Added by: Admin 17 Aug 2008 18:54:51 UTC |
Pop. 2%
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