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Oecologia

, Volume 182, Issue 4, pp 925–931 | Cite as

Hydroregulation in a tropical dry-skinned ectotherm

  • Anna F. V. Pintor
  • Lin Schwarzkopf
  • Andrew K. Krockenberger
Highlighted Student Research

Abstract

While temperature effects on species’ vulnerability to climate change are well studied, desiccation effects receive comparatively little attention. In addition, we poorly understand the capacity of ectotherms, and especially reptiles, to control water loss rates behaviourally by selecting suitable microhabitats. This study examined water loss rates and behavioural hydroregulation in the tropical rainforest skink Carlia rubrigularis to assess whether this dry-skinned ectotherm actively avoids desiccation and whether trade-offs occur between desiccation avoidance and selection of optimal temperatures, as previously shown in amphibians. Higher temperatures elicited humid refuge choice despite placing individuals in suboptimal thermal conditions, as indicated by preferred substrate temperatures. This finding emphasizes the importance of water loss even for taxa traditionally assumed to be highly desiccation resistant, and highlights this factor’s potential influence on vulnerability to climate change by limiting activity times or by restricting individuals to thermally suboptimal microhabitats.

Keywords

Desiccation threshold Climate change Water loss Skinks Lizards 

Notes

Acknowledgments

We thank L. Hunter for help with animal collection, V. Graham, G. Buckton, K. Mintram, and M. Comerford for assistance with husbandry and J. Larsson for technical assistance. Funding was provided by James Cook University, the Centre for Tropical Biodiversity and Climate Change, the National Climate Change Adaptation Research Facility, and the Skyrail Rainforest Foundation.

Author contribution statement

AFVP, LS, AKK conceived and designed the experiment, AFVP performed the experiments, AFVP and AKK performed the statistical analysis, AFVP wrote the manuscript, LS and AKK provided editorial advice.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Animal ethics

All applicable institutional and national guidelines for the care and use of animals were followed. The research was conducted under animal ethics permit A2076 and animal collection for scientific purposes permit WISP10730612.

References

  1. Andrewartha H, Birch L (1960) Some recent contributions to the study of the distribution and abundance of insects. Annu Rev Entomol 5(1):219–242CrossRefGoogle Scholar
  2. Angilletta MJ (2009) Thermal adaptation: a theoretical and empirical synthesis. Oxford University Press, New YorkCrossRefGoogle Scholar
  3. Bartelt PE, Klaver RW, Porter WP (2010) Modeling amphibian energetics, habitat suitability, and movements of western toads, Anaxyrus (=Bufo) boreas, across present and future landscapes. Ecol Model 221(22):2675–2686CrossRefGoogle Scholar
  4. Bates D, Maechler M, Bolker B, Walker S (2015) Fitting linear mixed-effects models using lme4. J Stat Softw 67(1):1–48CrossRefGoogle Scholar
  5. Buckley LB, Ehrenberger JC, Angilletta MJ (2015) Thermoregulatory behavior limits local adaptation of thermal niches and confers sensitivity to climate change. Funct Ecol 29(8):1038–1047. doi: 10.1111/1365-2435.12406 CrossRefGoogle Scholar
  6. Bundy D, Tracy CR (1977) Behavioral response of American toads (Bufo americanus) to stressful thermal and hydric environments. Herpetologica 33(4):455–458Google Scholar
  7. Bursell E (1957) The effect of humidity on the activity of tsetse flies. J Exp Biol 32:238–255Google Scholar
  8. Chown SL, Sørensen JG, Terblanche JS (2011) Water loss in insects: an environmental change perspective. J Insect Physiol 57(8):1070–1084PubMedCrossRefGoogle Scholar
  9. Davis JR, Denardo DF (2010) Seasonal patterns of body condition, hydration state, and activity of Gila monsters (Heloderma suspectum) at a sonoran desert site. J Herpetol 44(1):83–93CrossRefGoogle Scholar
  10. Deutsch CA, Tewksbury JJ, Huey RB, Sheldon KS, Ghalambor CK, Haak DC, Martin PR (2008) Impacts of climate warming on terrestrial ectotherms across latitude. PNAS 105(18):6668–6672PubMedPubMedCentralCrossRefGoogle Scholar
  11. Dmi’el R (2001) Skin resistance to evaporative water loss in reptiles: a physiological adaptive mechanism to environmental stress or a phyletically dictated trait? Israel J Zool 47(1):56–67CrossRefGoogle Scholar
  12. Hillman S, Gorman GC, Thomas R (1979) Water loss in Anolis lizards: evidence for acclimation and intraspecific differences along a habitat gradient. Comp Biochem Phys A 62(2):491–493CrossRefGoogle Scholar
  13. Huey RB, Deutsch CA, Tewksbury JJ, Vitt LJ, Hertz PE, Pérez HJÁ, Garland T (2009) Why tropical forest lizards are vulnerable to climate warming. Proc R Soc B Biol Sci 276(1664):1939–1948CrossRefGoogle Scholar
  14. Hughes L (2003) Climate change and Australia: trends, projections and impacts. Aust Ecol 28(4):423–443CrossRefGoogle Scholar
  15. IPCC (2013) Climate change 2013: the physical science basis. Contribution of working group I to the fifth assessment report of the intergovernmental panel on climate change. Cambridge University Press, CambridgeGoogle Scholar
  16. Kearney MR, Simpson SJ, Raubenheimer D, Kooijman SA (2013) Balancing heat, water and nutrients under environmental change: a thermodynamic niche framework. Funct Ecol 27(4):950–966CrossRefGoogle Scholar
  17. Köhler A, Sadowska J, Olszewska J, Trzeciak P, Berger-Tal O, Tracy CR (2011) Staying warm or moist? Operative temperature and thermal preferences of common frogs (Rana temporaria), and effects on locomotion. Herpetol J 21(1):17–26Google Scholar
  18. Ladyman M, Bradshaw D (2003) The influence of dehydration on the thermal preferences of the western tiger snake Notechis scutatus. J Comp Physiol B 173(3):239–246PubMedGoogle Scholar
  19. Messenger P (1959) Bioclimatic studies with insects. Annu Rev Entomol 4(1):183–206CrossRefGoogle Scholar
  20. Neilson KA (2002) Evaporative water loss as a restriction on habitat use in endangered New Zealand endemic skinks. J Herpetol 36(3):342–348CrossRefGoogle Scholar
  21. Pinheiro J, Bates D, Debroy S, Sarkar D, The R Development Core Team (2013) nlme: linear and nonlinear mixed effects models. R package version 3.1–109Google Scholar
  22. Pintor AFV, Schwarzkopf L, Krockenberger AK (2016) Extensive cold acclimation potential in a restricted tropical lizard (Carlia longipes). PLoS One 11(3):e0150408. doi: 10.1371/journal.pone.0150408 PubMedPubMedCentralCrossRefGoogle Scholar
  23. Prange HD (1996) Evaporative cooling in insects. J Insect Physiol 42(5):493–499CrossRefGoogle Scholar
  24. R Core Team (2014) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna. http://www.R-project.org/
  25. Scarpellini CDS, Bícego KC, Tattersall GJ (2015) Thermoregulatory consequences of salt loading in the lizard Pogona vitticeps. J Exp Biol 218(8):1166–1174CrossRefGoogle Scholar
  26. Sunday JM, Bates AE, Kearney MR, Colwell RK, Dulvy NK, Longino JT, Huey RB (2014) Thermal-safety margins and the necessity of thermoregulatory behavior across latitude and elevation. PNAS 111(15):5610–5615PubMedPubMedCentralCrossRefGoogle Scholar
  27. Suppiah R, Hennessy K, Whetton P, Mcinnes K, Macadam I, Bathols J, Ricketts J, Page C (2007) Australian climate change projections derived from simulations performed for the IPCC 4th assessment report. Aust Meteorol Mag 56(3):131–152Google Scholar
  28. TattersallGJ Gerlach RM (2005) Hypoxia progressively lowers thermal gaping thresholds in bearded dragons Pogona vitticeps. J Exp Biol 208(17):3321–3330CrossRefGoogle Scholar
  29. Tracy BJ, Tracy C, Dobkin D (1979) Desiccation in the black dragon Hagenius brevistylus selys. Experientia 35(6):751–752CrossRefGoogle Scholar
  30. Tracy CR, Christian KA, O’Connor MP, Tracy CR (1993) Behavioral thermoregulation by Bufo americanus: the importance of the hydric environment. Herpetologica 49(3):375–382Google Scholar
  31. Tracy CR, Tixier T, Le Nöene C, Christian KA (2014) Field hydration state varies among tropical frog species with different habitat use. Physiol Biochem Zool 87(2):197–202PubMedCrossRefGoogle Scholar
  32. Vickers M, Manicom C, Schwarzkopf L (2011) Extending the cost-benefit model of thermoregulation: high-temperature environments. Am Nat 177(4):452–461PubMedCrossRefGoogle Scholar
  33. Warburg M (1965) The influence of ambient temperature and humidity on the body temperature and water loss from two Australian lizards, Tiliqua rugosa (Gray) (Scincidae) and Amphibolurus barbatus Cuvier (Agamidae). Aust J Zool 13(2):331–350CrossRefGoogle Scholar
  34. Williams JW, Jackson ST (2007) Novel climates, no-analog communities, and ecological surprises. Front Ecol Environ 5(9):475–482CrossRefGoogle Scholar
  35. Williams JW, Jackson ST, Kutzbach JE (2007) Projected distributions of novel and disappearing climates by 2100 AD. PNAS 104(14):5738–5742PubMedPubMedCentralCrossRefGoogle Scholar
  36. Wilms TM, Wagner P, Shobrak M, Lutzmann N, Böhme W (2010) Aspects of the ecology of the Arabian spiny-tailed lizard (Uromastyx aegyptia microlepis Blanford, 1875) at Mahazat as-Sayd protected area Saudi Arabia. Salamandra 46(3):131–140Google Scholar
  37. Withers P, Aplin K, Werner Y (2000) Metabolism and evaporative water loss of Western Australian geckos (Reptilia: Sauria: Gekkonomorpha). Aust J Zool 48(2):111–126CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Anna F. V. Pintor
    • 1
  • Lin Schwarzkopf
    • 2
  • Andrew K. Krockenberger
    • 1
  1. 1.Centre for Tropical Biodiversity and Climate Change, College of Marine and Environmental SciencesJames Cook UniversityCairnsAustralia
  2. 2.Centre for Tropical Biodiversity and Climate Change, College of Marine and Environmental SciencesJames Cook UniversityTownsvilleAustralia

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