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040			_aEC-PaCDF _bspa _cEC-PaCDF
041			_aeng
082	0	4	_a597.928 _223
100	1		_aZárate, Patricia. _9327 _eautor
245	1	0	_aHatching and emergence success in green turtle Chelonia mydas nest in the Galapagos Islands / _cPatricia Zárate ... [et al.].
260	3		_c2013.
300			_a: 217-229 p.
520	0		_aThe interactions of numerous abiotic and biotic factors experienced by sea turtle embryos during incubation affect their survival. In this study we determined the hatching and emergence success of green turtles Chelonia mydas from nests on 4 beaches on the Galápagos Islands, one of the most important rookeries for green turtles in the eastern Pacific Ocean. Mean (±SD) hatching and emergence success for the 1039 nests examined were 46.0 ± 33.4 and 45.6 ± 33.4%, respectively. These values are relatively low compared to other green turtle populations worldwide. We evaluated the effects of beach, year, day of oviposition, carapace length and width of female, nest position, nest habitat, and nest chamber depth on hatching and emergence success with binomial generalized additive models with fixed effects. We found variation in hatching and emergence success was significant among beaches, years, day of oviposition, and nest habitat. Predation by feral pigs and beetles and destruction of earlier nests by nesting females were the most important causes of embryo mortality. Efforts to keep threats at minimum levels, particularly controlling pigs near Isabela beaches, should be considered a major conservation objective. This study highlights important differences among beaches within a rookery and emphasizes the need to continue improving management strategies to protect green turtles and their critical habitats. Quantitative information provided here can be used as a basis for long-term studies in the Galápagos and for comparison to other sea turtles rookeries.
546			_aInglés
653			_aChelonia mydas
653			_aSea turtle reproduction
653			_aReproducción de la tortuga marina
653			_aClutch success
653			_aÉxito del embrague
653			_aGeneralized additive models
653			_aModelos aditivos generalizados
653			_aPacific Ocean
653			_aOcéano Pacífico
653			_aPredation
653			_aPredación
653			_aFeral pigs
653			_aCerdos feroz
653			_aBeetles
653			_aEscarabajos
653			_aReptiles
700	1		_aBjorndal, Karen A. _eautor
700	1		_aParra, Macarena. _eautor
700	1		_aDutton, Peter H. _eautor
700	1		_aSeminoff, Jeffrey A. _eautor
700	1		_aBolten, Alan B. _eautor
773	0		_tAquatic Biology _gVol. 19, (October 2013), p. 217-229.
856	4	0	_uhttp://dx.doi.org/10.3354/ab00534
942			_2ddc _cARTICLE
999			_c12737 _d12737