TitleNest and maternal origin can influence morphology and locomotor performance of hatchling green turtles (Chelonia mydas) incubated in field nests
Publication TypeJournal Article
Year of Publication2013
AuthorsBooth DT, Feeney R, Shibata Y
Date PublishedJan
Type of ArticleArticle
ISBN Number0025-3162
Accession NumberBIOSIS:PREV201300179581
Keywords(egg, immature)], 07002, Behavioral biology - General and comparative behavior, 07003,, 07508, Ecology: environmental, 07512, Ecology: environmental biology - Oceanography, 12002, Physiology - General, 18504, Integumentary system - Physiology, 25502, Development and Embryology - General and, and biochemistry, Animals, Chordates, Nonhuman, Behavior, Behavioral biology - Animal behavior, biology - Animal, carapace, Chelonia [85402], descriptive, Development, field nest, power stroke rate, nest origin, split clutch design, swim, green turtle, integumentary system, Marine Ecology (Ecology, Environmental Sciences), Movement and Support, Reptilia, Vertebrata, Chordata, Animalia, swimming, locomotor performance, hatchling phenotype, maternal origin,, thrust, Vertebrates, Reptiles, Vertebrates, [Chelonia mydas
AbstractIn numerous laboratory experiments involving the incubation of reptile eggs, both the maternal origin of eggs and the incubating environment (nest effect) have been demonstrated to influence hatchling phenotype. Although different hatchling phenotypes have been reported from natural nests, the separate effects of maternal origin and nest on hatchling phenotype in natural nests have not been demonstrated because in natural nests the two effects are confounded with each other. Here, we use a split clutch design to experimentally separate nest effects from maternal origin effects in field nests of green turtles (Chelonia mydas). We found both maternal origin and nest to influence hatchling morphology and locomotor performance in some but not all field nests. By using egg mass (maternal origin effect) and nest temperature (nest effect) in multiple regression analysis, we found maternal origin had a greater influence than nest temperature on the morphological attributes of hatchling mass and carapace size, but nest temperature had a greater influence than maternal origin on the performance attributes of self-righting time, self-righting propensity, swim thrust during the first 30 min of swimming, and power stroke rate during the first 30 min of swimming.