Keith Christian

Summary

Affiliation: Charles Darwin University
Country: Australia

Publications

  1. ncbi Energetics of bluetongue lizards (Tiliqua scincoides) in a seasonal tropical environment
    Keith A Christian
    School of Environmental Sciences, Northern Territory University, NT 0909 Darwin, Australia
    Oecologia 136:515-23. 2003
  2. ncbi Effects of seasonal variation in prey abundance on field metabolism, water flux, and activity of a tropical ambush foraging snake
    Keith Christian
    School of Science, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 80:522-33. 2007
  3. ncbi Not just small, wet, and cold: effects of body size and skin resistance on thermoregulation and arboreality of frogs
    Christopher R Tracy
    School of Environmental and Life Sciences, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Ecology 91:1477-84. 2010
  4. ncbi Evaluating thermoregulation in reptiles: an appropriate null model
    Keith A Christian
    School of Science, Charles Darwin University, Darwin, Northern Territory, 0909, Australia
    Am Nat 168:421-30. 2006
  5. ncbi Physiological ecology of the mangrove-dwelling varanid Varanus indicus
    James G Smith
    School for Environmental Research, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 81:561-9. 2008
  6. ncbi Microclimate and limits to photosynthesis in a diverse community of hypolithic cyanobacteria in northern Australia
    Christopher R Tracy
    School of Environmental and Life Sciences, Charles Darwin University, Darwin, NT 0909, Australia
    Environ Microbiol 12:592-607. 2010
  7. ncbi The cocoon of the fossorial frog Cyclorana australis functions primarily as a barrier to water exchange with the substrate
    Stephen J Reynolds
    Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 83:877-84. 2010
  8. ncbi Body temperature and resistance to evaporative water loss in tropical Australian frogs
    Christopher R Tracy
    School of Science, Charles Darwin University, Darwin, NT 0909, Australia
    Comp Biochem Physiol A Mol Integr Physiol 150:102-8. 2008
  9. ncbi The adaptive significance of reptilian viviparity in the tropics: testing the maternal manipulation hypothesis
    Jonathan K Webb
    School of Biological and Environmental Sciences, Charles Darwin University, Northern Territory, Australia
    Evolution 60:115-22. 2006
  10. ncbi Preferred temperature correlates with evaporative water loss in hylid frogs from northern Australia
    Christopher R Tracy
    School of Science, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 78:839-46. 2005

Detail Information

Publications13

  1. ncbi Energetics of bluetongue lizards (Tiliqua scincoides) in a seasonal tropical environment
    Keith A Christian
    School of Environmental Sciences, Northern Territory University, NT 0909 Darwin, Australia
    Oecologia 136:515-23. 2003
    ....
  2. ncbi Effects of seasonal variation in prey abundance on field metabolism, water flux, and activity of a tropical ambush foraging snake
    Keith Christian
    School of Science, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 80:522-33. 2007
    ..Unlike many lizards that cease feeding during the dry season, death adders remain active and attempt to maximize their energy intake year-round...
  3. ncbi Not just small, wet, and cold: effects of body size and skin resistance on thermoregulation and arboreality of frogs
    Christopher R Tracy
    School of Environmental and Life Sciences, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Ecology 91:1477-84. 2010
    ....
  4. ncbi Evaluating thermoregulation in reptiles: an appropriate null model
    Keith A Christian
    School of Science, Charles Darwin University, Darwin, Northern Territory, 0909, Australia
    Am Nat 168:421-30. 2006
    ..This new technique provides an unbiased method for evaluating thermoregulation in large ectotherms that store heat while moving through complex environments, but it can also generate null models for ectotherms of all sizes...
  5. ncbi Physiological ecology of the mangrove-dwelling varanid Varanus indicus
    James G Smith
    School for Environmental Research, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 81:561-9. 2008
    ..These lizards are unusual among varanid lizards in that their midday T(b)'s are relatively low (about 31 degrees C) despite the availability of thermal resources that would allow them to attain substantially higher T(b)'s...
  6. ncbi Microclimate and limits to photosynthesis in a diverse community of hypolithic cyanobacteria in northern Australia
    Christopher R Tracy
    School of Environmental and Life Sciences, Charles Darwin University, Darwin, NT 0909, Australia
    Environ Microbiol 12:592-607. 2010
    ..Several OTUs identified from northern Australia have not been reported to be associated with hypolithic communities previously...
  7. ncbi The cocoon of the fossorial frog Cyclorana australis functions primarily as a barrier to water exchange with the substrate
    Stephen J Reynolds
    Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 83:877-84. 2010
    ..We contend that the primary function of the cocoon is to prevent liquid water loss to drying clay and loam soils, rather than to prevent subterranean evaporative water loss...
  8. ncbi Body temperature and resistance to evaporative water loss in tropical Australian frogs
    Christopher R Tracy
    School of Science, Charles Darwin University, Darwin, NT 0909, Australia
    Comp Biochem Physiol A Mol Integr Physiol 150:102-8. 2008
    ..The mechanisms involved in causing resistance and changes in resistance are unknown...
  9. ncbi The adaptive significance of reptilian viviparity in the tropics: testing the maternal manipulation hypothesis
    Jonathan K Webb
    School of Biological and Environmental Sciences, Charles Darwin University, Northern Territory, Australia
    Evolution 60:115-22. 2006
    ....
  10. ncbi Preferred temperature correlates with evaporative water loss in hylid frogs from northern Australia
    Christopher R Tracy
    School of Science, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 78:839-46. 2005
    ....
  11. ncbi Comparative analysis of cutaneous evaporative water loss in frogs demonstrates correlation with ecological habits
    Jeanne E Young
    School of Science, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Physiol Biochem Zool 78:847-56. 2005
    ..This study represents the strongest evidence to date of a link between ecological habits and cutaneous resistance to water loss among species of frogs...
  12. ncbi Seasonal effects on intestinal enzyme activity in the Australian agamid lizard, Lophognathus temporalis
    Sebastian Iglesias
    School of Science, Charles Darwin University, Darwin, Northern Territory 0909, Australia
    Comp Biochem Physiol B Biochem Mol Biol 153:89-94. 2009
    ..9; 3.6 micromol min(-1); respectively) and then sucrase (0.3; 0.2 micromol min(-1); respectively). The higher total enzyme activities was the result of an increase in intestinal mass during the wet season...
  13. ncbi The respiratory system in varanid lizards: determinants of O(2) transfer
    Peter B Frappell
    Department of Zoology, La Trobe University, Melbourne, VIC 3086, Australia
    Comp Biochem Physiol A Mol Integr Physiol 133:239-58. 2002
    ..Compensatory changes occur in various parameters to offset those parameters that are 'limited'. The high aerobic activity of varanid lizards would not be achievable without a compensated circulatory convection...