Thermal environment characteristics of Podocnemis expansa and Podocnemis unifilis nesting areas on the Javaés River, Tocantins, Brazil

Chelonian Conservation and Biology

Volumn 5, Issue 1, 2006, Pages 102-107

  Ferreira Jr , Paulo Dias ^a   Castro, Paulo De Tarso Amorim ^a  

^a FEDERAL UNIVERSITY OF OURO PRETO   (Brazil)

Author keywords

Brazil; Nesting; Podocnemididae; Podocnemis expansa; Podocnemis unifilis; Reptilia; Testudines; Thermal environment; Turtle

Indexed keywords

DERMATEMYDIDAE; PODOCNEMIS EXPANSA; PODOCNEMIS UNIFILIS; REPTILIA; TESTUDINES;

EID: 33744502601     PISSN: 10718443     EISSN: None     Source Type: Journal    
DOI: 10.2744/1071-8443(2006)5[102:TECOPE]2.0.CO;2     Document Type: Article

References (21)

1. ALHO, C.J.R., DANNI, T.M.S., AND PÁDUA, L.F.M. 1985. Temperature-dependent sex determination in Podocnemis expansa (Testudinata: Pelomedusidae). Biotropica 17(1):75-78.
2. BULL, J.J. 1980. Sex determination in reptiles. Quarterly Review of Biology 53(1):3-20.
3. BULL, J.J. 1985. Sex ratio and nest temperature in turtles: comparing field and laboratory data. Ecology 66(4): 1115-1122.
4. BULL, J.J. AND VOGT, R.C. 1981. Temperature-sensitive periods of sex determination in Emydid turtles. Journal of Experimental Zoology 218:435-440.
5. EWERT, M.A. AND NELSON, C.E. 1991. Sex determination in turtles: diverse patterns and some possible adaptive values. Copeia 1991(1):50-68.
6. FERREIRA JÚNIOR, P.D. 2003. Influência dos processes sedimentológicos e geomorfológicos na escolha das áreas de nidificação de Podocnemis expansa (tartaruga-da-amazônia) e Podocnemis unifilis (tracajá) na bacia do rio Araguaia. PhD Thesis, Departamento de Geologia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
7. FERREIRA JÚNIOR, P.D. AND CASTRO, P.T.A. 2003. Geological control of Podocnemis expansa and Podocnemis unifilis nesting areas in Rio Javaés, Bananal Island, Brazil. Acta Amazônica 33(3):445-468.
8. FERREIRA JÚNIOR, P.D., GUIMARÃES, O.S., AND MALVASIO, A. 2003. The influence of geological factors on reproductive aspects of Podocnemis unifilis (Testudines, Pelomedusidae), on the Javaés River, Araguaia National Park, Brazil. Chelonian Conservation and Biology 4(3):626-634.
9. FOLK, R.L. 1974. Petrology of Sedimentary Rocks. Austin, TX: Hemphill Publication Co, 182 pp.
10. GEORGES, A., LIMPUS, C., AND STOUTJESDIJK, R. 1994. Hatchling sex in the marine turtle Caretta caretta is determined by proportion of development at a temperature, not daily duration of exposure. Journal of Experimental Zoology 270(3):432-444.
11. HARRISON, S.J. 1985. Heat exchanges in muddy intertidal sediments: Chichester Harbour, West Sussex, England. Estuarine, Coastal and Shelf Science 20:477-490.
12. HARRISON, S.J. AND MORRISON, P. 1993. Temperatures in a sandy beach under strong solar heating: Patara Beach, Turkey. Estuarine, Coastal and Shelf Science 37(1):89-97.
13. JANZEN, F.J. AND PAUKSTIS, G.L. 1991. Environmental sex determination in reptiles: ecology, evolution, and experimental design. Quarterly Review of Biology 66(2):149-179.
14. MROSOVSKY, N., DUTTON, P.H., AND WHITMORE, C.P. 1984. Sex ratio of two species of sea turtle nesting in Suriname. Canadian Journal of Zoology 62(11):2227-2239.
15. NOVAK, M.D. AND BLACK, T.A. 1985. Theoretical determination of the surface energy balance and thermal regimes of bare soils. Boundary Layer Meteorology 33:313-333.
16. PIEAU, C. 1982. Modalities of the action of temperature on sexual differentiation in field developing embryos of the European pond turtle Emys orbicularis (Emydidae). Journal of Experimental Zoology 220:353-360.
17. SCHWARZKOPF, L. AND BROOKS, R.J. 1985. Sex determination in northern painted turtles: effect of incubation at constant and fluctuating temperatures. Canadian Journal of Zoology 63(11): 2543-2547.
18. SOUZA, R.R. AND VOGT, R.C. 1994. Incubation temperature influences sex and hatchling size in the neotropical turtle Podocnemis unifilis. Journal of Herpetology 28(4):453-464.
19. VALENZUELA, N., BOTERO, R., AND MARTÍNEZ, E. 1997. Field study of sex determination in Podocnemis expansa from Colombian Amazonia. Herpetologica 53(3):390-395.
20. YNTEMA, C.L. AND MROSOVSKY, N. 1982. Critical periods and pivotal temperatures for sexual differentiation in loggerhead sea turtles. Canadian Journal of Zoology 60(5): 1012-1016.
21. ZAR, J.H. 1998. Biostatistical Analysis. New Jersey: Prentice Hall, 929pp.