Field body temperatures of caimans in the Pantanal, Brazil

Herpetological Journal

Volumn 15, Issue 2, 2005, Pages 97-106

  Campos, Zilca ^a   Coutinho, Marcos ^a   Magnusson, Willam E ^b  

^a EMBRAPA CERRADOS   (Brazil)

^b INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA   (Brazil)

Author keywords

Behaviour; Caiman crocodilus yacare; Temperature; Thermoregulation

Indexed keywords

CAIMAN; CAIMAN CROCODILUS YACARE;

EID: 23444445640     PISSN: 02680130     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (42)

1. Ayarzaguena, J. S. (1983). Ecologia del caiman de anteojos o baba (Caiman crocodilus L.) en los llanos de Apure (Venezuela). Doñana Acta Vertebrata 10, 7-136.
2. Bakken, G. S. & Gates, D. M. (1975). Heat transfer analysis in animals: some implications for field ecology, physiology and evolution. In Perspectives of Biophysical Ecology, 255-290. Gates, D. M. & Schmerl, R. B. (Eds). New York, Springer Verlag.
3. Campos, Z. (1993). Effect of habitat on survival of eggs and sex ratio of hatchlings of Caiman crocodilus yacare in the Pantanal, Brazil. Journal of Herpetolology 27, 127-132.
4. Campos, Z., Coutinho, M. & Abercrombie, C. (1994). Night-light counts, size structure, and sex ratio in wild populations of yacare caiman (Caiman crocodilus yacare) in the Brazilian Pantanal. Vida Silvestre Neotropical 4, 46-50.
5. Colbert, E. H., Cowles, R. B. & Bogert, C. M. (1946). Temperature tolerances in the American alligator and their bearing on the habitats, evolution, and extinction of the dinosaurs. Bulletin American Museum of Natural History 86, 327-374.
6. Cott, H. B. (1961). Scientific results of an inquiry into the ecology and economic status of the Nile crocodile (Crocodylus niloticus) in Uganda and northern Rhodesia. Transactions of the Zoological Society London. 29, 211-356.
7. Coutinho, M. & Campos, Z. (1996). Effect of habitat and seasonality on the densities of caiman in southern Pantanal, Brazil. Journal of Tropical Ecology 12, 741-747.
8. Diefenbach, C. O. (1975). Thermal preference and thermoregulation in Caiman crocodilus. Copeia 1975, 530-40.
9. Ferguson, M, W. J. (1987). Post-laying stages of embryonic development for crocodilians. In Wildlife management: Crocodiles and Alligators, 409-415. Webb, G. W., Manolis, S. C. & Whitehead, P. J. (Eds). Chipping Norton, Surrey Beatty & Sons.
10. Grigg, G. C. & Seebacher, F. (2001). Crocodilian thermal relations. In Crocodilian Biology and Evolution, 297-309. Grigg, G. C., Seebacher, F. & Franklin, C. E. (Eds). Chipping Norton, Surrey Beatty and Sons.
11. Grigg, G. C., Drane, C. R. & Courtice, G. P. (1979). Time constants of heating and cooling in the eastern water dragon, Physignathus leseuri and some generalizations about heating and cooling in reptiles. Journal of Thermal Biology 4, 95-103.
12. Grigg, G. C., Seebacher, F., Beard, L. & Morris, D. (1998). Thermal relations of large crocodiles, free-ranging in a naturalistic situation. Proceedings of the Royal Society London 265, 1793-1799.
13. Hertz, P. E., Huey, R. B. & Stevenson, R. D. (1993). Evaluating temperature regulation by field-active ectotherms: the fallacy of the inappropriate question. American Naturalist 142, 796-818.
14. Hubert, J. (1985). Embryology of marine turtles. In Biology of the Reptilia, Volume 15, 269-328. Gans, C. & Pough, F. H. (Eds). New York, John Wiley and Sons.
15. Johnson, C. R., Webb, G. J. W. & Tanner, C. (1976). Thermoregulation in crocodilians - II. A telemetric study of body temperature in the Australian crocodiles, Crocodylus johnstoni and Crocodylus porosus. Comparative Biochemistry and Physiology 53A, 143-146.
16. Lang, J. W. (1987a). Crocodilian thermal selection. In Wildlife Management: Crocodiles and Alligators, 301-317. Webb, G. J., Manolis, C. & Whitehead, P. J. (Eds). Chipping Norton, Surrey Beatty and Sons.
17. Lang, J. W. (1987b). Crocodilian behaviour: implications for management. In Wildlife Management: Crocodiles and Alligators, 273-294. Webb, G. J., Manolis, C. & Whitehead, P. J. (Eds). Chipping Norton, Surrey Beatty and Sons.
18. Loveridge, J. P. (1984). Thermoregulation in the Nile crocodile, Crocodylus niloticus. In The Structure, Development and Evolution of Reptiles, 443-468. Ferguson, M. W. J. (Ed.). London, Academic Press.
19. Magnusson, W. E. , Lima, A. P., Hero, J.-M., Sanaiotti, T. M. & Yamakoshi, M. (1990). Paleosuchus trigonatus nests: sources of heat and embryo sex ratios. Journal of Herpetology 24, 397-400.
20. Marcellini, D. L. (1979). Activity patterns and densities of Venezuelan caiman (Caiman crocodilus) and pond turtles (Podocnemis vogli). In Vertebrate Ecology in the Neotropics, 263-271. Eisenberg, J. (Ed.). Washington, Smithsonian Institution Press.
21. Moll, E. O. & Legler, M. (1971). The life history of a neotropical slider turtle, Pseudemys scripta (Schoepff), in Panama. Bulletin Los Angeles Museum of Natural History 11, 1-102.
22. Mourão, G., Coutinho, M., Mauro, R., Campos, Z.,Tomás, W. & Magnusson, W. (2000). Aerial surveys of caiman, marsh deer and pampas deer in the Pantanal wetland of Brazil. Biological Conservation 92, 175-183.
23. O'Connor, M. P. & J. R. Spotila. (1992). Consider a spherical animal: when do short cuts matter in biophysical models? American Zoologist 32, 179-193.
24. Pott, A. (1994). Ecossistema Pantanal. In Utilización y Manejo de Pastizales, 31-44. Montevideo, IICA/PROCISUR Diálogo 40.
25. Pritchard, P. C. H. & Greenhood, W. F. (1968). The sun and the turtle. International Turtle and Tortoise Society Journal 2, 20-25.
26. Read, M. A., Grigg, G. C. & Limpus, C. J. (1996). Body temperatures and winter feeding in immature green turtles, Chelonia mydas, in Moreton Bay, Southeastern Queensland. Journal of Herpetology 30, 262-265.
27. Seebacher, F. (1999). Behavioral postures and the rate of body temperature change in wild freshwater crocodiles, Crocodylus johnstoni. Physiological and Biochemical Zoology 72, 57-63.
28. Seebacher, F. (2000). Heat transfer in a microvascular network: the effect of heart rate on heating and cooling in reptiles (Pogona barbata and Varanus varius). Journal of Theoretical Biology 203, 97-109.
29. Seebacher, F. & Grigg, G. C. (1997). Patterns of body temperature in wild freshwater crocodiles, Crocodylus johnstoni: thermoregulation vs. conformity, seasonal acclimatisation and the effect of social interactions. Copeia 1997, 549-557.
30. Seebacher, F., Grigg, G. C. & Beard, L. A. (1999). Crocodiles as dinosaurs: behavioural thermoregulation in very large ectotherms leads to high and stable body temperatures. Journal of Experimental Biology 202, 77-86.
31. Shine, R. (1985). The evolution of viviparity in reptiles: an ecological analysis. In Biology of the Reptilia, Volume 15, 605-694. Gans, C and Billet, F. (Eds). New York: John Wiley and Sons.
32. Smith, E. N. (1979). Behavioral and physiological thermoregulation of crocodilians. American Zoologist 19, 239-247.
33. Soreano, B. A. (1997). Boletim Agrometeorológico: 1989-1996. Corumbá, Empresa Brasileira de Pesquisa Agropecuária - CPA Pantanal.
34. Spotila, J. R., Lommen, P. W., Bakken, G. S. & Gates, D. M. (1973). A mathematical model for body temperatures of large reptiles: implications for dinosaur ecology. American Naturalist 107, 391-404.
35. Staton, M. A. & Dixon, J. R. (1975). Studies on the dry season biology of Caiman crocodilus crocodilus from the Venezuelan Llanos. Memorias Sociedad Ciencias Naturales 35, 237-266.
36. Stevenson, R. D. (1985). Body size and the limits to the daily range of body temperature in terrrestrial ectotherms. American Naturalist 125, 102-117.
37. Thorbjarnarson, J. B. (1995). Dry season diel activity patterns in spectacled caiman (Caiman crocodilus) in the Venezuelan llanos. Amphibia-Reptilia 16, 415-421.
38. Tosini, G. & Avery, R. (1996). Pregnancy decreases set point temperatures for behavioural thermoregulation in the wall lizard Podarcis muralis. Herpetological Journal 6, 94-96.
39. Tracy, C. R. (1982). Biophysical modelling in reptilian physiology and ecology. In Biology of the Reptilia, Volume 12, 275-321. Gans, C. & Pough, F. H. (Eds). New York, Academic Press.
40. Van Mierop, L. H. S. & Barnard, S. M. (1976). Thermoregulation in a brooding female Python molurus bivittatus (Serpentes: Boidae). Copeia 1976, 398-401.
41. Wilkinson, L. (1998). SYSTAT: The System for Statistics. Evanston, SYSTAT Inc.
42. Yaron, Z. (1985). Reptilian placentation and gestation: structure, function, and endocrine control. In Biology of the Reptilia, 528-603. Gans, C. & Billet, F. (Eds.). New York, John Wiley and Sons.