| Packard, G. C., Paukstis, G. L., Boardman, T. J., & Gutzke, W. H. N. (1985). Daily and seasonal variation in hydric conditions and temperature inside nests of common snapping turtles (chelydra serpentina). Canadian Journal of Zoology, 63, 2422–2429. |
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| Added by: Admin 24 Aug 2008 19:37:48 UTC |
Pop. 2.5%
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| Packard, G. C. (1991). Physiological and ecological importance of water to embryos of oviparous reptiles. In D. C. Deeming & M. W. J. Ferguson (Eds.), Egg incubation Cambridge (Cambridge University Press). |
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| Added by: Sarina Wunderlich 13 Oct 2008 21:33:02 UTC |
Pop. 3.5%
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| Packard, G. C., & Packard, M. J. (1993). Sources of variation in laboratory measurements of water relations of reptilian eggs and embryos. Physiological zoology, 66 (1), 115–127. |
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| Added by: Sarina Wunderlich 23 Aug 2008 14:56:32 UTC |
Pop. 2%
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| Packard, G. C., Packard, M. J., & Birchard, G. F. (2000). Availability of water affects organ growth in prenatal and neonatal snapping turtles (chelydra serpentina). Journal of Comparative Physiology B. Biochemical, Systems, and Environmental Physiology, 170(1), 69–74. |
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| Added by: Admin 17 Aug 2008 18:17:24 UTC |
Pop. 2.25%
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| Paisley, N. R., Wetzel, J. F., Nelson, J. S., Stetzer, C., Hamernick, M. G., & Anderson, B. P. (2009). Survival and spatial ecology of the snapping turtle, chelydra serpentina, on the upper mississippi river. Canadian Field-Naturalist, 123(4), 329–337. |
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| Added by: Sarina Wunderlich 28 Aug 2011 21:15:19 UTC |
Pop. 2.75%
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| Palmer, B. D., & Sager, T. A. (2003). Reproductive endocrinology of turtles and tortoises: new methodologies and their application to research and conservation. Abstracts ASIH Meeting 2003. |
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| Added by: Admin 14 Aug 2008 20:36:26 UTC |
Pop. 3.5%
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| Parmenter, R. R. (1981). Digestive turnover rates in freshwater turtles: the influence of temperature and body size. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 70, 235–238. |
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| Added by: Admin 24 Aug 2008 19:37:50 UTC |
Pop. 2.25%
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| Parren, S. G., & Rice, M. A. (2004). Terrestrial overwintering of hatchling turtles in vermont nests. Northeastern Naturalist, 11(2), 229–233. |
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| Last edited by: Beate Pfau 09 Nov 2008 08:56:11 UTC |
Pop. 2.25%
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| Passmore, H. L., & Brooks, R. J. , Effects of geographic origin and incubation temperature on hatchling snapping turtles, chelydra serpentina: implications for turtle conservation practices across the species’ range. Paper presented at Conservation, Restoration and Management of Tortoises and Turtles - An international Conference, State University of New York, Purchase. |
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| Added by: Admin 17 Aug 2008 18:54:55 UTC |
Pop. 2.75%
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| Pearse, D. E., & Avise, J. C. (2001). Turtle mating systems: behavior, sperm storage, and genetic paternity. Journal of Heredity, 92(2), 206–211. |
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| Last edited by: Beate Pfau 09 Nov 2008 09:01:43 UTC |
Pop. 3.75%
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| Pellegrin, N. (2008). Keeping and breeding the common snapping turtle chelydra serpentina serpentina (linnaeus, 1758). Emys, 15(2), 17–22. |
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| Added by: Sarina Wunderlich 01 Jan 2009 23:10:40 UTC |
Pop. 1.75%
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| Pennock, S. (2004). The turtles of nahant marsh: a study of species diversity and abundance. Biology Research, 402. |
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| Added by: Admin 14 Aug 2008 20:38:53 UTC |
Pop. 2.5%
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| Petokas, P. J., & Alexander, M. M. (1980). The nesting of chelydra serpentina in northern new york. Journal of Herpetology, 14(3), 239–244. |
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| Added by: Admin 24 Aug 2008 20:00:26 UTC |
Pop. 2%
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| Pettit, K. E., Bishop, C. A., & Brooks, R. J. (1995). Home range and movements of the common snapping turtle, chelydra serpentina serpentina, in a coastal wetland of hamilton harbour, lake ontario, canada. Canadian Field Naturalist, 109(2), 192–200. |
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| Added by: Admin 01 Aug 2010 18:22:03 UTC |
Pop. 2.5%
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| Petzold, H.-G. (1975). Chelydra serpentina serpentina (linne, 1758), schnappschildkröte. Aquarien-Terrarien, 22 (5), 179. |
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| Added by: Admin 25 Aug 2008 21:58:38 UTC |
Pop. 2%
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| Pfau, B., & Wiechert, J. M. (2003). Gedanken zur fütterung von wasserschildkröten. Emys, 10(4), 4–50. |
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| Added by: Sarina Wunderlich 28 Feb 2010 12:07:36 UTC |
Pop. 5.75%
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| Phelps, J. P. (2004). Aquatic turtles of diversely managed watersheds in the ouachita mountains, arkansas. In J. M. Guldin (Ed.), Ouachita and Ozark Mountains symposium: ecosystem management research (pp. 321).Gen. Tech. Rep. SRS-74. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. |
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| Added by: Admin 14 Aug 2008 20:38:53 UTC |
Pop. 2%
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| Philippen, H.-D. (2010). Farbmutationen bei schildkröten. eine aktuelle übersicht. Marginata, 7(4), 10–30; 3. |
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| Added by: Sarina Wunderlich 25 Jun 2011 12:41:54 UTC |
Pop. 4%
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| Phillips, C. A., Dimmick, W. W., & Carr, J. L. (1996). Conservation genetics of the common snapping turtle (chelydra serpentina). Conservation Biology, 10(2), 397–405. |
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| Last edited by: Beate Pfau 31 May 2009 10:00:34 UTC |
Pop. 2%
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| Phu, L. D. (2010). The natural history and distribution of riverine turtles in west virginia. Unpublished thesis Master of Science, Marshall University, Huntington, West Virginia. |
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| Added by: Admin 25 Aug 2010 21:58:55 UTC |
Pop. 3.25%
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