| Bowden, R. M., Ewert, M. A., Lipar, J. L., & Nelson, C. E. , Hormones in yolk layers and offspring sex ratios vary seasonally in a turtle. Paper presented at Animal Behaviour Conference 2002. |
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| Added by: Admin 25 Aug 2008 21:57:58 UTC |
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| Bowden, R. M., Ewert, M. A., Lipar, J. L., & Nelson, C. E. 2002, Hormones in yolk layers and offspring sex ratios vary seasonally in a turtle. Unpublished paper presented at Indiana University Animal Behavior Conference. |
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| Added by: Admin 15 Mar 2009 13:35:42 UTC |
Pop. 3.25%
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| Bowden, R. M., Ewert, M. A., Freedberg, S. B., & Nelson, C. E. (2002). Maternally derived yolk hormones vary in follicles of the painted turtle, chrysemys picta. Journal of Experimental Zoology, 293(1), 67–72. |
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| Added by: Admin 14 Aug 2008 20:36:21 UTC |
Pop. 2.75%
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| Bowden, R. M., Ewert, M. A., Lipar, J. L., & Nelson, C. E. (2001). Concentrations of steroid hormones in layers and biopsies of chelonian egg yolks. General and Comparative Endocrinology, 121(1), 95–103. |
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| Added by: Admin 17 Aug 2008 18:17:13 UTC |
Pop. 2.75%
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| Bowden, R. M., Ewert, M. A., & Nelson, C. E. (2002). Hormone levels in yolk decline throughout development in the red-eared slider turtle (trachemys scripta elegans). General and Comparative Endocrinology, 129(3), 171–177. |
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| Added by: Admin 14 Aug 2008 20:35:25 UTC |
Pop. 2.25%
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| Bowden, R. M., Ewert, M. A., & Nelson, C. E. (2000). Environmental sex determination in a reptile varies seasonally and with yolk hormones. Proceedings of the Royal Society of London - Biological Sciences, 267(1454), 1745–1749. |
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| Added by: Admin 14 Aug 2008 22:46:39 UTC |
Pop. 2.5%
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| Clark, P. J., Ewert, M. A., & Nelson, C. E. (2001). Physical apertures as constraints on egg size and shape in the common musk turtle, sternotherus odoratus. Functional Ecology, 15(1), 70–77. |
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| Added by: Admin 14 Aug 2008 22:46:40 UTC |
Pop. 2.25%
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| Etchberger, C. R., Ewert, M. A., Phillips, J. B., & Nelson, C. E. (2002). Carbon dioxide influences environmental sex determination in two species of turtles. Amphibia-Reptilia, 23(2), 169–175. |
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| Added by: Admin 14 Aug 2008 20:35:26 UTC |
Pop. 2.5%
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| Etchberger, C. R., Ewert, M. A., Phillips, J. B., Nelson, C. E., & Prange, H. D. (1992). Physiological responses to carbon dioxide in embryonic red-eared slider turtles, trachemys scripta. Journal of Experimental Zoology, 264, 1–10. |
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| Added by: Admin 23 Aug 2008 12:13:14 UTC |
Pop. 2%
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| Etchberger, C. R., Ewert, M. A., Raper, B. A., & Nelson, C. E. (1992). Do low incubation temperatures yield females in painted turtles? Canadian Journal of Zoology, 70, 391–394. |
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| Added by: Admin 23 Aug 2008 12:13:14 UTC |
Pop. 2.25%
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| Etchberger, C. R., Ewert, M. A., & Nelson, C. E. (1990). The effects of incubation temperature on hatching success, survival, and growth in graptemys kohni. American Zoologist, 30, 56A. |
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| Added by: Admin 23 Aug 2008 19:58:23 UTC |
Pop. 2.25%
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| Etchberger, C. R., Ewert, M. A., Phillips, J. B., Nelson, C. E., & Prange, H. D. (1993). Environmental and maternal influences on embryonic pigmentation in a turtle (trachemys scripta elegans). Journal of Zoology, London, 230, 529–539. |
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| Last edited by: Beate Pfau 10 Jul 2009 09:08:26 UTC |
Pop. 2.25%
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| Etchberger, C. R., Phillips, J. B., Ewert, M. A., Nelson, C. E., & Prange, H. D. (1991). Effects of oxygen concentration and clutch on sex determination and physiology in red-eared slider turtles (trachemys scripta). Journal of Experimental Zoology, 258, 394–403. |
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| Added by: Admin 23 Aug 2008 19:58:24 UTC |
Pop. 2.25%
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| Ewert, M. A., Jackson, D. R., & Nelson, C. E. (1994). Patterns of temperature-dependent sex determination in turtles. Journal of Experimental Zoology, 270, 3–15. |
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| Added by: Admin 19 Jul 2009 14:41:40 UTC |
Pop. 2.5%
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| Ewert, M. A., & Nelson, C. E. , Temperature-dependent sex determination and pattern ii turtles. Paper presented at 1st World Congr. Herpetol. Canterbury. |
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| Added by: Admin 23 Aug 2008 19:58:24 UTC |
Pop. 2.5%
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| Ewert, M. A., Lang, J. W., & Nelson, C. E. (2005). Geographic variation in the pattern of temperature-dependent sex determination in the american snapping turtle (chelydra serpentina). Journal of zoology, 265(1), 81–95. |
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| Added by: Admin 19 Jul 2009 14:42:21 UTC |
Pop. 2.25%
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| Ewert, M. A., Etchberger, C. R., & Nelson, C. E. (1990). An apparent co-occurrence of genetic and environmental sex determination in a turtle. American Zoologist, 30, 56A. |
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| Added by: Admin 23 Aug 2008 19:58:24 UTC |
Pop. 2.75%
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| Ewert, M. A., Firth, S. J., & Nelson, C. E. (1984). Normal and multiple eggshells in batagurine turtles and their implications for dinosaurs and other reptiles. Canadian Journal of Zoology, 62(9), 1834–1841. |
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| Added by: Admin 13 Sep 2009 10:11:08 UTC |
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| Ewert, M. A., & Nelson, C. E. (1991). Sex determination in turtles: patterns and some possible adaptive values. Copeia, 1991(1), 50–69. |
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| Last edited by: Beate Pfau 01 Jun 2009 11:48:27 UTC |
Pop. 2.75%
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| Freedberg, S. B., Greives, T. J., Ewert, M. A., Demas, G. E., Beecher, N., & Nelson, C. E. (2008). Incubation environment affects immune system development in a turtle with environmental sex determination. Journal of Herpetology, 42(3), 536–541. |
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| Last edited by: Beate Pfau 28 Apr 2009 14:24:57 UTC |
Pop. 2%
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