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Gila Monsters
Rattlesnakes
Pythons
Field Site

Publications


Brashears, J. A., and DeNardo, D. F. (2012) Do brooding pythons recognize their clutches? Investigating external cues for offspring recognition in the Children’s python, Antaresia childreni. Ethology, in press.


Fisher, R. E. Geiger, L., Stroik, L. K.., Hutchins, E. D., George, R., DeNardo, D. F., Kusumi, K. J., Rawls, J. A., and Wilson-Rawls, J. (2012) A histological comparison of the original and regenerated tail in the green anole, Anolis carolinensis. The Anatomical Record, in press.


Ritzman, T. B., Stroik, L. K., Julik, E., Hutchins, E. D., Lasku, E., DeNardo, D. F., Wilson-Rawls, J., Rawls, J. A., Kusumi, K., Fisher, R. E. (2012) The gross anatomy of the original and regenerated tail in the green anole (Anolis carolinensis). The Anatomical Record, in press.

 

DeNardo, D. F., Lourdais, O., and Stahlschmidt, Z. R. (2012) Are females maternal manipulators, selfish mothers, or both? Insight from pythons. Herpetologica, In press.


•Stahlschmidt, Z. R., Shine, R., and DeNardo, D. F. (2012) The consequences of alternative parental care tactics in free-ranging pythons (Liasis fuscus) in tropical Australia. Functional Ecology, In press.


•Stahlschmidt, Z. R., Shine, R., and DeNardo, D. F. (2012) Temporal and spatial complexity of maternal thermoregulation in tropical pythons. Physiological and Biochemical Zoology 85: 219-230.


•Lorioux, S., DeNardo D. F., Gorelick, R., and Lourdais, O. (2012) Maternal influences on early development: preferred temperature prior to oviposition hastens embryogenesis and enhances offspring traits in the Children’s python (Antaresia childreni). Journal of Experimental Biology 215: 1346-1353.


•Eckalbar, W. L., Lasku, E., Infante, C. R., Elsey, R. M., Markov, G. J., Allen, A. N., Corneveaux, J. J., Losos, J. B., DeNardo, D. F., Huentelman, M. J., Wilson-Rawls, J., Rawls, A., Kusumi, K. (2012) Somitogenesis in the anole lizard and alligator reveals evolutionary convergence and divergence in the amniote segmentation clock. Developmental Biology 363: 308-319.


•DeNardo, D. F. (2012) Anesthesia. In Reptile Biodiversity: Standard Methods for Inventory and Monitoring (R. W. McDiarmid, M. S. Foster, J. W. Gibbons, C. Guyer, W. Gibbons, and N. Chernoff, eds.). University of California Press, Berkeley, CA. Pp. 134-138.


•Alibardi, L., and DeNardo, D. F. (2011) Ultrastructural and immunocytochemical features of the epidermis of the lizard Heloderma suspectum indicate richness in lipids and lack of a specialized shedding complex. Acta Zoologica. doi: 10.1111/j.1463-6395.2011.00528.x


•Cooper-Bailey, K., Smith, S. A., Zimmerman, K., Lane, R., Raskin, R. E., and DeNardo, D. F. (2011) Hematology, blood chemistry and plasma electrophoresis of wild-caught and captive-bred Gila Monsters (Heloderma suspectum). Veterinary Clinical Pathology 40: 316-323.


•Stahlschmidt, Z. R., Brashears, J. A., and DeNardo, D. F. (2011) Assessing the accuracy of ultrasound estimation of reproductive investment and output in pythons. Biological Journal of the Linnean Society 103: 772-778.


Stahlschmidt, Z. R., DeNardo, D. F., Holland, J. N., Kotler, B. P., and Kruse-Peebles, M. (2011) Tolerance mechanisms in North American deserts: Biological and societal approaches to climate change. Journal of Arid Environments 75: 681-687.


•Stahlschmidt, Z. R., Brashears, J. A., and DeNardo, D. F. (2011) The role of temperature and humidity in python nest-site selection. Animal Behaviour 81: 1077-1081.


•Stahlschmidt, Z. R., Davis, J. R., and DeNardo, D. F. (2011) Sexual variation in assimilation efficiency: its link to phenotype and potential role in sexual dimorphism. Journal of Comparative Physiology B 181: 383-389.


Yokoyama, S., Altun, A., and DeNardo, D. F. (2011) Molecular convergence of infrared vision in snakes. Molecular Biology and Evolution 28: 45-48.


•DeNardo, D. F., and Taylor, E. N. (2010) Hormones and reproduction in free-ranging snakes. In Reproductive Biology and Phylogeny of Snakes (R. D. Aldridge and D.M. Sever, eds.), Science Publishers Inc., Enfield, NH. Pp. 265-287.


•Stahlschmidt, Z. R., and DeNardo, D. F. (2010) Parental care in snakes. In Reproductive Biology and Phylogeny of Snakes (R. D. Aldridge and D.M. Sever, eds.), Science Publishers Inc., Enfield, NH. Pp. 673-702.


•Taylor, E. N., and DeNardo, D. F. (2010) Hormone and reproductive cycles in snakes. In Hormones and Reproduction of Vertebrates, Vol. 3 Reptiles (D. O. Norris & K. H. Lopez, eds.), Elsevier, San Diego. Pp. 355-372.


•French, S. S., DeNardo, D. F., Greives, T. J., Strand, C. R., and Demas, G. E. (2010) Human disturbance alters endocrine and immune responses in the Galapagos marine iguana (Amblyrhynchus cristatus). Hormones and Behavior 58: 792-799.


•Stahlschmidt, Z. R., Heulin, B., and DeNardo, D. F. (2010) The role of python eggshell permeability dynamics in a respiration-hydration tradeoff. Physiological and Biochemical Zoology 83: 576-586.

•Stahlschmidt, Z. R., and DeNardo, D. F. (2010) Parental behavior in pythons is responsive to both the hydric and thermal dynamics of the nest. Journal of Experimental Biology 213: 1691-1696. [featured in “Inside JEB”, on the BBC web site’s “The Big Picture”, and on CNBC radio show “Quirks and Quarks”]

•Davis, J. R., and DeNardo, D. F. (2010) Seasonal patterns of body condition, hydration state, and activity of Gila Monsters (Heloderma suspectum) at a Sonoran Desert Site. Journal of Herpetology 44: 83-93.

•Stahlschmidt, Z. R., and DeNardo, D. F. (2009) Effect of nest temperature on egg-brooding behavior, metabolism, and clutch-nest thermal relations in Children's pythons (Antaresia childreni), Physiology and Behavior 98: 302-306.

•Davis, J. R., and DeNardo, D. F. (2009) Water supplementation affects the behavioral and physiological ecology of Gila monsters (Heloderma suspectum) in the Sonoran Desert, Physiological and Biochemical Zoology 82: 739-748.

•Stahlschmidt, Z. R., and DeNardo, D. F. (2009) Obligate costs of parental care to offspring: Egg-brooding induced hypoxia creates smaller, slower, and weaker python offspring. Biological Journal of the Linnean Society 98: 414-421.

•Taylor, E. N. and DeNardo, D. F. (2008) Proximate determinants of sexual size dimorphism in the western diamond-backed rattlesnake (Crotalus atrox), In The Biology of Rattlesnakes (W. K. Hayes, K. R. Beaman, M. D. Cardwell, & S. P. Bush, eds.). Loma Linda University Press, Loma Linda, CA., Pp. 91-100.


•Stahlschmidt, Z. R., Hoffman, T. C. M., and DeNardo, D. F. (2008) Postural shifts during egg-brooding and their impact on egg water balance in Children’s pythons (Antaresia childreni). Ethology 114: 1113–1121.

•Davis, J. R., and DeNardo, D. F. (2008) Water storage compromises endurance in an active forager: evidence of a trade-off between osmoregulation and locomotor performance. Journal of Comparative Physiology A. 194: 713–718.

•Davis, J. R., Taylor, E. N., and DeNardo, D. F. (2008) An automated temperature-based option for estimating surface activity and refuge use patterns in free-ranging animals. Journal of Arid Environments. 72: 1414-1422.

•Stahlschmidt, Z. R., and DeNardo D. F. (2008) Alternating egg brooding behaviors create and modulate a hypoxic developmental micro-environment in Children’s pythons (Antaresia childreni). Journal of Experimental Biology 211: 1535-1540.

•Lourdais, O., Heulin, B., and DeNardo, D. F. (2008) Thermoregulation during gravidity in the Children’s python (Antaresia childreni): a test of the pre-adaptation hypothesis for maternal thermophily in snakes. Biological Journal of the Linnaean Society 93: 499-508.

•French, S. S., DeNardo, D. F., and Moore, M. C. (2007) Trade-offs between the reproductive and immune systems: facultative responses to resources or obligate responses to sex steroid hormones? American Naturalist 170: 79-89.

•Christel, C. M., Secor, S. M., and DeNardo, D. F. (2007) Metabolic and digestive response to food ingestion in a binge-feeding lizard, the Gila monster (Heloderma suspectum). Journal of Experimental Biology 210: 3430-3439.

•Lourdais, O., Hoffman, T. and DeNardo, D. F. (2007) Maternal brooding in the Children's python (Antaresia childreni) promotes egg water balance. Journal of Comparative Physiology B 177: 569-577.

•Davis, J. R., and DeNardo, D. F. (2007) The urinary bladder as a physiological reservoir that moderates dehydration in a large desert lizard, the Gila monster (Heloderma suspectum). Journal of Experimental Biology 210: 1472-1480.

•Hoffman, T. C. M., Walsberg, G. E., and DeNardo, D. F. (2007) Cloacal evaporation: an important and previously undescribed mechanism for avian thermoregulation. Journal of Experimental Biology 210: 741-749.

•DeNardo, D. F. (2007) Tribute to Icons of the American Southwest. Conservation Biology 21: 564-565.

•Christel, C. M, and DeNardo, D. F. (2007) Absence of exendin-4 effects on postprandial glucose and lipids in the Gila monster, Heloderma suspectum. Journal of Comparative Physiology B 177: 129:134.

•Schuett, G. W., Repp, R. A., Taylor, E. N., DeNardo, D. F., Earley, R. L., Van Kirk, E. A., and Murdoch, W.J. (2006). Winter profile of plasma sex steroid levels in free-living male western diamond-backed rattlesnakes, Crotalus atrox (Serpentes: Viperidae). General and Comparative Endocrinology 149: 72-80.

•Christel, C. M, and DeNardo, D. F. (2006) Release of exendin-4 is controlled by mechanical action in Gila Monsters, Heloderma suspectum. Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology 143: 85-88.

•DeNardo, D. F. (2006) Stress in captive reptiles. In Reptile Medicine and Surgery, 2nd Ed. (D. R. Mader, ed.) Saunders Elsevier. Pp. 119-123.

•DeNardo, D. F. (2006) Reproductive biology. In Reptile Medicine and Surgery, 2nd Ed. (D. R. Mader, ed.) Saunders Elsevier. Pp. 376-390.

•DeNardo, D. F. (2006) Dystocia. In Reptile Medicine and Surgery, 2nd Ed. (D. R. Mader, ed.) Saunders Elsevier. Pp. 787-792.

•Taylor, E. N., and DeNardo, D. F. (2005) Sexual size dimorphism and growth plasticity in snakes: an experiment on the Western Diamond-backed Rattlesnake (Crotalus atrox). Journal of Experimental Zoology 303A: 598-607.

•Taylor, E. N., Malawy, M. A., Browning, D. M., Lemar, S. V., and DeNardo, D. F. (2005) Effects of food supplementation on the physiological ecology of female western diamond-backed rattlesnakes (Crotalus atrox). Oecologia 144: 206-213.

•Taylor, E. N., and DeNardo, D. F. (2005) Reproductive ecology of Western Diamond-backed Rattlesnakes (Crotalus atrox) in the Sonoran Desert. Copeia 2005: 152-158.

•DeNardo, D. F., Zubal T. E., and Hoffman, T. C. M. (2004) Cloacal evaporative cooling: a previously undescribed means of increasing evaporative water loss at higher temperatures in a desert ectotherm, the Gila Monster, Heloderma suspectum. Journal of Experimental Biology 207: 945-953.

•Lourdais, O., Brischoux, F., DeNardo, D. F., and Shine, R. (2004) Protein catabolism in pregnant snakes (Epicrates cenchria maurus, Boidae) compromises musculature and performance after reproduction. Journal of Comparative Physiology B 174: 383-391.

•Taylor, E. N., D. F. DeNardo, and D. H. Jennings. 2004. Seasonal steroid hormone levels and their relation to reproduction in the Western Diamond-backed Rattlesnake, Crotalus atrox (Serpentes: Viperidae). General and Comparative Endocrinology 136: 328-337.

•Taylor, E. N., D. F. DeNardo, and M. A. Malawy. 2004. A comparison between point- and semi-continuous sampling for assessing body temperature in a free-ranging ectotherm. Journal of Thermal Biology 29: 91-96.

•Taylor, E. N. and G. W. Schuett. 2004. Effects of temperature and storage duration on the stability of steroid hormones in blood samples from Western Diamond-backed Rattlesnakes. Herpetological Review 35: 14-17.

•Lourdais, O., Bonnet, X., DeNardo D. F., and Naulleau, G. (2002) Do sex divergences in reproductive ecophysiology population translate into dimorphic demographic patterns? Population Ecology 44: 241-249.

•DeNardo, D. F., Luna, J. V., and Hwang, M. (2002) Ambient temperature and activity of horned adders, Bitis caudalis: how cold is too cold? Journal of Herpetology 36: 688-691.

•Lourdais, O., Bonnet, X., Shine, R., DeNardo, D., Naulleau, G., and Guillon, M. (2002) Capital breeding and reproductive effort in a variable environment: a long-term study of the aspic viper. Journal of Animal Ecology 71: 470-479.

•DeNardo, D. F., and Helminski, G. (2001) The use of hormone antagonists to inhibit reproduction in the lizard Eublepharis macularius. Journal of Herpetological Medicine and Surgery 11: 4-7.

•DeNardo, D. F., and Autumn, K. (2001) The effect of male presence on reproductive activity in captive female blood pythons, Python curtus. Copeia 2001: 1138-1141.

•Eisen, R. J., and DeNardo, D. F. (2000) Life history of a malaria parasite (Plasmodium mexicanum) in its host, the western fence lizard (Sceloporus occidentalis): host testosterone as a seasonal cue? Journal of Parasitology 86: 1041-1045.

•Reiserer, R.S., and DeNardo, D. F. (2000). Natural history observations on Bitis peringueyi (Reptilia: Viperidae). Cimbebasia 16: 195-198.

•Sinervo, B., Miles, D. B., Frankino, A., Klukowski, M., and DeNardo, D. F. (2000) Testosterone, endurance, and Darwinian fitness: natural and sexual selection on the physiological bases of alternative male behaviors in side-blotched lizards. Hormones and Behavior 38: 222-233.

•Wozniak, E. J., and DeNardo, D. F. (2000) The biology, clinical significance, and control of the common snake mite, Ophionyssus natricis, in captive reptiles. Journal of Herpetological Medicine and Surgery 10: 4-10.

•Wozniak, E., DeNardo, D. F., Brewer, A., Wong, V., and Tarara, R. P. (2000) Identification of adenovirus- and dependovirus-like agents in an outbreak of fatal gastroenteritis in captive born California mountain kingsnakes (Lampropeltis zonata multicincta). Journal of Herpetological Medicine and Surgery 10: 4-7.

•Wozniak, E., McBride, J., Tarara, R., Wong, V., and DeNardo, D. F. (2000) Isolation and characterization on an antigenically distinct 68-kilodalton protein from non-viral intracytoplasmic inclusions in boa constrictors chronically infected with the inclusion body disease virus (IBDV: Retroviridae). Journal of Veterinary Pathology 37: 449-459.

•Autumn, K., Jindrich, D., DeNardo, D., and Mueller, R. (1999) Locomotor performance at low temperature and the evolution of nocturnality in geckos. Evolution 53: 580-599.

•Rodriguez-Robles, J. A., DeNardo, D. F., and Staub, R. E. (1999) Phylogeography of the California mountain kingsnake, Lampropeltis zonata (Colubridae). Molecular Ecology 8: 1923-1934.

•Wozniak, E. J., Telford, S. R. Jr., DeNardo, D., McLaughlin, G. L., and Butler, J. F. (1998) Granulomatous hepatitis associated with Hepatozoon sp. meronts in a southern water snake (Nerodia fasciata piciventris). Journal of Zoo and Wildlife Medicine 29: 68-71.

•Colberg, M. E., DeNardo, D. F., Rojek, N. A., and Miller, J. W. (1997) Surgical procedure for radiotransmitter implantation into aquatic, larval salamanders. Herpetological Review 28: 77-78.

•Wozniak, E. J., and DeNardo, D. F. (1997) Understanding the snake mite and current therapies for its control. Proceedings of the American Association of Reptilian and Amphibian Veterinarians 1997: 137-147.

•Sinervo, B., and DeNardo, D.F. (1996) Cost of reproduction in the wild: path analysis of natural selection and experimental tests of causation. Evolution 50: 1299-1313.

•Wozniak, E. J., Telford, S. R., DeNardo, D. (1996) The biology of reptilian Hepatozoon species and their potential influence on the health status of captive reptiles. Bulletin of the American Association of Reptilian and Amphibian Veterinarians 6: 8-12.

•DeNardo, D. F. (1996) Reproductive biology. In Reptile Medicine and Surgery (D. R. Mader, ed.) W. B. Saunders Co. Pp. 212-223.

•DeNardo, D. F. (1996) Dystocia. In Reptile Medicine and Surgery (D. R. Mader, ed.) W.B. Saunders Co. Pp. 370-373.

•DeNardo, D. F. (1996) Amphibian husbandry and medicine. 11th Annual Avian/Exotic Animal Medicine Symposium, School of Veterinary Medicine, University of California, Davis, CA,. Pp. 115-132.

•Autumn, K., and DeNardo, D. F. (1995) Behavioral thermoregulation increases growth rate in a nocturnal lizard. Journal of Herpetology 29: 157-162.

•DeNardo, D. (1995) Amphibians as Laboratory Animals. ILAR Journal, 37: 173-181.

•DeNardo, D. F., and Sinervo, B. (1994) Effects of steroid hormone interaction on activity and home-range size of male lizards. Hormones and Behavior 28: 273-287.

•DeNardo, D. F., and Sinervo, B. (1994) Effects of corticosterone on activity and home-range size of free-ranging male lizards. Hormones and Behavior 28: 53-65.

•DeNardo, D. F., and Licht, P. (1993) Effects of corticosterone on social behavior of male lizards. Hormones and Behavior 27: 184-199.

•DeNardo, D. F. (1992) The effects of stress on reproduction in lizards and its application to captive management. In Proceedings of the International Herpetological Society's 19th Conference.


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