@mastersthesis {12897,
	title = {A comparison of morphological and reproductive characteristics of loggerhead sea turtles, <i>Caretta caretta</i>, nesting in the United States, Brazil, and Greece},
	volume = {M.Sc.},
	year = {1998},
	school = {University of Florida},
	address = {Gainesville},
	keywords = {Reptilia},
	author = {Tiwari, M.}
}
@article {12898,
	title = {Variation in morphology and reproduction in loggerheads, <i>Caretta caretta</i>, nesting in the United States, Brazil, and Greece},
	journal = {HerpetologicaHerpetologica},
	volume = {56},
	number = {3},
	year = {2000},
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	month = {2000///},
	pages = {343-356},
	abstract = {Many studies have addressed intraspecific variation in life history traits in vertebrates. We quantified differences in morphology and reproductive output of loggerhead sea turtles, Caretta caretta, nesting in Florida (temperate population), Brazil (tropical population), and Greece (Mediterranean population). Body size of nesting loggerheads, dutch size, egg size (diameter and mass), and nest dimensions were measured. Straight carapace lengths of nesting loggerheads in Florida and Brazil were not significantly different, but Greek turtles were smaller than those in the two Atlantic populations. Clutch size comparisons showed that Greek turtles produced the largest clutches relative to body size, followed by Brazil and Florida. Egg size varied significantly among the three populations. Nest dimensions were similar between Florida and Greece, whereas only depth of topmost egg and width of nest chamber were similar between Greece and Brazil. Differences among populations indicate that each population experiences and responds to a different combination of selective factors both at and away from the nesting beach. Morphological and reproductive data on other loggerhead populations were compiled from the literature and examined for latitudinal trends in all ocean basins and within the Atlantic-Mediterranean. A significant negative correlation was found between latitude and both body size and egg size in all ocean basins and within the Atlantic-Mediterranean. No correlation was found between clutch size and latitude. Correlations were not significant when Mediterranean data were excluded from the analyses, suggesting that sea turtles in the Mediterranean encounter environmental conditions significantly different from those experienced by oceanic populations. Reproductive output in loggerheads was found to support the optimal egg size theory. This study highlights important differences among populations and emphasizes the need for conserving genetic and phenotypic variation in marine turtle populations.},
	keywords = {Body size, Brazil, Caretta caretta, Clutch size, Egg size, Florida, Greece, Latitudinal variation, Loggerhead sea turtles, morphology, Nest dimensions, reproduction, Reptilia},
	author = {Tiwari, M. and Bjorndal, K.A.}
}
