| Packard, G. C., Packard, M. J., Boardman, T. J., & ZumBrunnen, J. R. (1990). Mobilization of lipid and protein by embryonic snapping turtles in wet and dry environments. Journal of Experimental Zoology, 255, 155–162. |
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| Added by: Sarina Wunderlich 13 Oct 2008 21:32:30 UTC |
Pop. 5.5%
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| Birchard, G. F., & Packard, G. C. (1997). Cardiac activity in supercooled hatchlings of the painted turtle (chrysemys picta). Journal of Herpetology, 31(1), 166–169. |
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| Added by: Admin 17 Aug 2008 18:54:41 UTC |
Pop. 2.25%
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| Birchard, G. F., Packard, M. J., & Packard, G. C. (1990). Effect of temperature and hydric conditions on blood ph in embryonic snapping turtles (chelydra serpentina). Canadian Journal of Zoology, 68, 190–193. |
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| Added by: Admin 23 Aug 2008 19:57:41 UTC |
Pop. 2.5%
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| Cagle, K. D., Packard, G. C., Miller, K., & Packard, M. J. (1993). Effects of the microclimate in natural nests on development of embryonic painted turtles, chrysemys picta. Functional Ecology, 7, 653–660. |
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| Added by: Admin 23 Aug 2008 12:13:05 UTC |
Pop. 2.5%
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| Gutzke, W. H. N., & Packard, G. C. (1987). The influence of temperature on eggs and hatchlings of blanding's turtles, emydoidea blandingii. Journal of Herpetology, 21, 161–163. |
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| Added by: Admin 23 Aug 2008 19:58:37 UTC |
Pop. 2.25%
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| Gutzke, W. H. N., Packard, G. C., Packard, M. J., & Boardman, T. J. (1987). Influence of the hydric and thermal environments on eggs and hatchlings of painted turtles (chrysemys picta). Herpetologica, 43, 393–404. |
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| Added by: Admin 23 Aug 2008 19:58:37 UTC |
Pop. 2.25%
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| Gutzke, W. H. N., & Packard, G. C. (1986). Sensitive periods for the influence of the hydric environment on eggs and hatchlings of painted turtles (chrysemys picta). Physiological zoology, 59, 337–343. |
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| Added by: Admin 24 Aug 2008 18:46:36 UTC |
Pop. 2%
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| Gutzke, W. H. N., Paukstis, G. L., & Packard, G. C. (1984). Pipping versus hatching as indices of time of incubation in reptiles. Journal of Herpetology, 18(4), 494–496. |
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| Added by: Sarina Wunderlich 30 Jun 2012 22:01:01 UTC |
Pop. 3%
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| Hartley, L. M., Packard, M. J., & Packard, G. C. (2000). Accumulation of lactate by supercooled hatchlings of the painted turtle (chrysemys picta): implications for overwinter survival. Journal of Comparative Physiology B. Biochemical, Systems, and Environmental Physiology, 170(1), 45–50. |
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| Added by: Admin 17 Aug 2008 18:17:18 UTC |
Pop. 3%
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| Iverson, J. B., Packard, M. J., & Packard, G. C. (1984). Morphology of shell formation in eggs of the turtle kinosternon flavescens. Journal of Morphology, 181, 21–28. |
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| Added by: Beate Pfau 13 Sep 2008 17:17:45 UTC |
Pop. 2.25%
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| Miller, K., & Packard, G. C. (1992). The influence of substrate water potential during incubation on the metabolism of embryonic snapping turtles (chelydra serpentina). Physiological zoology, 65 (1), 172–187. |
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| Added by: Sarina Wunderlich 23 Aug 2008 14:56:28 UTC |
Pop. 2%
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| Miller, K., Packard, G. C., & Packard, M. J. (1987). Hydric conditions during incubation influence locomotor performance of hatchling snapping turtles. Journal of Experimental Biology, 127, 401–412. |
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| Added by: Sarina Wunderlich 13 Oct 2008 21:32:51 UTC |
Pop. 2%
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| Miller, K., Birchard, G. F., Packard, M. J., & Packard, G. C. (1989). Trionyx spiniferus (spiny softshell turtle). fecundity. Herpetological Review, 20, 56. |
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| Last edited by: Beate Pfau 02 Aug 2009 11:17:56 UTC |
Pop. 2.25%
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| Morris, K. A., Packard, G. C., Boardman, T. J., Paukstis, G. L., & Packard, M. J. (1983). Effect of hydric environment on growth of embryonic snapping turtles (chelydra serpentina). Herpetologica, 39, 272–285. |
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| Added by: Admin 24 Aug 2008 19:37:40 UTC |
Pop. 2.25%
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| Packard, G. C., & Packard, M. J. (2001). Environmentally induced variation in size, energy reserves and hydration of hatchling painted turtles, chrysemys picta. Functional Ecology, 15(4), 481. |
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| Added by: Admin 17 Aug 2008 18:54:55 UTC |
Pop. 2%
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| Packard, G. C., Packard, M. J., Miller, K., & Boardman, T. J. (1987). Influence of moisture, temperature, and substrate on snapping turtle eggs and embryos. Ecology, 68, 983–993. |
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| Added by: Sarina Wunderlich 13 Oct 2008 21:33:00 UTC |
Pop. 2%
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| Packard, G. C., & Packard, M. J. (1995). A review of the adaptive strategy used by hatchling painted turtles to survive in the cold. Herpetological Review, 26(8), 10–12. |
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| Added by: Admin 23 Aug 2008 15:33:07 UTC |
Pop. 1.75%
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| Packard, G. C., Packard, M. J., & Birchard, G. F. (1989). Sexual differentiation and hatching success by painted turtles incubating in different thermal and hydric environments. Herpetologica, 45, 385–392. |
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| Added by: Sarina Wunderlich 13 Oct 2008 21:33:01 UTC |
Pop. 1.75%
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| Packard, M. J., & Packard, G. C. (1989). Environmental modulation of calcium and phosphorus metabolism in embryonic snapping turtles (chelydra serpentina). Journal of Comparative Physiology B. Biochemical, Systems, and Environmental Physiology, 159, 501–508. |
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| Added by: Sarina Wunderlich 13 Oct 2008 21:33:02 UTC |
Pop. 2%
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| Packard, G. C., & Packard, M. J. (1989). Control of metabolism and growth in embryonic turtles: a test of the urea hypothesis. Journal of Experimental Biology, 147, 203–216. |
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| Added by: Admin 24 Aug 2008 17:39:57 UTC |
Pop. 1.75%
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