Livros e Publicações
URI permanente para esta coleçãohttps://bdc.icmbio.gov.br/handle/cecav/1487
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6 resultados
Resultados da Pesquisa
Item Hopper Dredging Impacts on Sea Turtles on the Northern Coast of Rio de Janeiro State, Brazil(2015) GOLDBERG, D. W.; ALMEIDA, D. T.; TOGNIN, F.; LOPEZ, G. G.; PIZETTA, G. T.; LEITE JUNIOR, N. O.; SFORZA, R.Item Hopper Dredging Impacts on Sea Turtles on the Northern Coast of Rio de Janeiro State, Brazil(2015) GOLDBERG, D.W.; ALMEIDA, D.T.; TOGNIN, F.; LOPEZ, G.G.; PIZETTA, G.T.; JUNIOR, N.O.L.; SFORZA, R.The northern coast of the state of Rio de Janeiro, eastern Brazil, isan important nesting ground for loggerhead turtles (Caretta caretta),with about 1500 nests laid annually (Lima et al. 2012). It also hosts foraging grounds for juvenile green turtles (Chelonia mydas) and serves as a migration corridor (and possibly provides foraging habitat) for olive ridley turtles (Lepidochelys olivacea) (Reis et al. 2010; TAMAR - Brazilian Sea Turtle Conservation Program database, unpublished data) and leatherback (Dermochelys coriacea) turtles (López-Mendilaharsu et al. 2009).Item HOPPER DREDGING(2015) GOLDBERG, D.W; ALMEIDA, D.T; TOGNIN, F.; LOPEZ, G.G; PIZETTA, G.T; JUNIOR, N.O.L; SFORZA, R.Item Using stranding data as a key to mitigate threats at one of the largest olive ridley rookery in the south atlantic(2018) CASTILHOS, J. C.; GOLDBERG, D. W.; GIFFONI, B. B.; WEBER, M. I.; OLIVEIRA, F. L. C.; FONSECA, E. L.; SILVA, A. C. C. D.; MELO, A. C. C.; ABREU, J. A. G.; SANTOS, E. A. P.; TOGNIN, F.; NILLIN, J.- SITAMAR:CONNECTING SEA TURTLES INFORMATION TO REACH BETTER CONSERVATION ACTIONS IN BRAZIL(2015-10-20) SANTOS, A. S.; MARCOVALDI, M.A.; LOPEZ, G.G.; WANDERLINDE, J.; TRENTIN, C.; GOLDBERG, D.W.; SILVA, B.M.G.; BECKER, J.H.; GIFFONI, B.; TORRES, D.; THOMÉ, J.C.A.; BAPTISTOTTE, C.; SFORZA, R.; RIETH, D. B.; TOGNIN, F.; LÓPEZ-MENDILAHARSU, M.; MAURUTTO, G.; LARA, P.H.; CASTILHOS, J.C. de; SILVA, C.C. da; MELO, M.T.D.; LIMA, E. H.S.M.; BARSANTE, A.; BELLINI, C.; SALES, G
Item Identification of loggerhead male producing beaches in the south Atlantic: Implications for conservation.(2016-01-04) ARCOVALDI, M.A.G.; LÓPES-MENDILAHARSU, M.; SANTOS, A.S; LOPEZ, G.G.; GODFREY, M.H.; TOGNIN, F.; BAPTISTOTTE, C.; THOMÉ, J.C.; DIAS, A.C.C.; CASTILHOS, J.C.; FUENTES, M.M.P.B.Concern over the potential impacts of increased temperature on marine turtles, which have temperature dependent sex determination, has resulted in an increase in research that predicts the sex ratio of marine turtle hatchlings under various scenarios of climate change. To accurately understand the projected impacts from global warming, it is necessary to understand the sex ratio baseline in advance of climate change. To address this, the primary sex ratio of loggerhead hatchlings, Caretta caretta, was estimated from incubation duration of 27,697 in situ nests from 21 nesting beaches used by two subpopulations of loggerhead turtles in Brazil over the last 25 years. A strong female bias (94%) was observed in all the areas used by the northern loggerhead stock, Sergipe (SE) and Bahia (BA), whereas a more balanced sex ratio (53% female) was estimated at the regions used by the southern loggerhead stock, Espirito Santo (ES) and Rio de Janeiro (RJ). Both inter-annual (SE: 83% to 99%, BA: 79. % to 98%, ES: 33% to 81%, RJ: 18% to 81%) and inter-beach variabilities (SE: 91% to 98%, BA: 89% to 96%, ES: 47% to 69%, RJ: 28% to 55%) in mean female offspring were observed. These findings provide evidence of persistent female bias in Brazil, and importantly identify male producing beaches and months, which will guide management decisions.