Resumo
Chrysemys dorbigni is a common diurnal turtle in the Taim Ecological Station. Though females may choose nesting sites in the same area they do it isolately, not in groups. Data on female nesting site selection, building of nest and egg laying are given. Under laboratory and field conditions development was followed from the egg stage to the emergence of hatchlings and growth of juveniles. One to 16 eggs are laid per clutch. Nesting activity is coincident with periods of higher temperatures in the field. Abiotic conditions and incidence of predation have been considered to estimate the success of clutches.
Observações sobre a nidificação e desenvolvimento de Chrysemys dorbigni (Dumeril & Bibron, 1835) (Testudines. Emydinae) na Estação Ecológica do Taim, Rio Grande do Sul
Lígia KeauseiI; Norma GomesII; Karin L. LeyserI
IDepartamento de zoologia, instituido de biociências, Universidade Federal do Rio Grande do Sul
IIMuseu de zoologia, Universidade de São Paulo
ABSTRACT
Chrysemys dorbigni is a common diurnal turtle in the Taim Ecological Station. Though females may choose nesting sites in the same area they do it isolately, not in groups. Data on female nesting site selection, building of nest and egg laying are given. Under laboratory and field conditions development was followed from the egg stage to the emergence of hatchlings and growth of juveniles. One to 16 eggs are laid per clutch. Nesting activity is coincident with periods of higher temperatures in the field. Abiotic conditions and incidence of predation have been considered to estimate the success of clutches.
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AGRADECIMENTOS
Agradecemos pelo apoio financeiro recebido do Núcleo Interdepartamental de Ecologia (NIDECO) do Instituto de Biociências da UFRGS, através do convênio MINTER-SEMA/NIDECO-UFRGS, e a permissão para utilização da área da Estação Ecológica do Taim.
- Alho, C. J. R., A. G. Carvalho & L. F. M. de Pádua, 1979. Ecologia da tartaruga da Amazônia e avaliação de seu manejo na Reserva Biológica de Trombetas. Brasil Florestal 38:29-47.
- Burger, J. & W. A. Montevecchi, 1975. Nest site selection in the terrapin Malaclemys terrapin. Copeia 1975 (1):113-119.
- Cagle, F. R., 1937. Egg habits of the slider turtle (Pseudemys troostii), the painted turtle (Chrysemys picta) and the musk turtle (Sternostherus odoratus). J. Tenn. Acad. Sci. 12:87-95.
- Cagle, F. R., 1950. The life history of the slider turtle Pseudemys scripta troostii (Holbrook). Ecol. Mon. 20 (1):31-54.
- Ehrenfeld, D. W., 1979. Behavior associated with nesting, in M. Harless & H. H. Marlock (eds.), Turtles: perspectives and research:417-434. Wiley and Sons, N. Y.
- Ernst, C. H., 1971a. Growth of the painted turtle Chrysemys picta in southeas-tern Pennsylvania. Herpetologica 27:135-145.
- Ernst, C. H., 1971b. Population dynamics and activity cycles of Chrysemys picta in southeastern Pennsylvania. J. Herp. 5 (3-4):151-160.
- Hirth, H. F., 1980. Some aspects of the mesting behavior and reproduetive biology of sea turtles. Am. Zool. 20:507-523.
- Moll & J. M. Legler, 1971. The life history of a neotropical slider turtle, Pseudemys scripta (Schoepff) in Panama. Bull. Los Angeles Cty Mus. nat. Sci. 11:202 p.
Datas de Publicação
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Publicação nesta coleção
28 Ago 2009 -
Data do Fascículo
1982
