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Repeatability of nesting preferences in the hawksbill sea turtle, Eretmochelys imbricata, and their fitness consequences
It was found that hatching success was similar among different beach zones, but the ability of hatchlings to emerge from the nest was impaired in areas subject to tidal inundation, and sea-finding tests showed that hatchlings were more susceptible to disorientation in areas deeper in the forest. Expand
Pivotal temperature for loggerhead turtles (Caretta caretta) from Kyparissia Bay, Greece
Comparison of incubation durations in the field with the pivotal durations obtained here suggest that hatchling sex ratio on some Mediterranean beaches is female biased but probably varies considerably within this region. Expand
Nest site selection in leatherbacks, Dermochelys coriacea: individual patterns and their consequences
It appears that leatherbacks have adopted a regional rather than a local optimum for nest placement patterns, possibly resulting from their weak beach fidelity and the frequent erosion and destruction of their nesting beaches. Expand
Deforestation: risk of sex ratio distortion in hawksbill sea turtles.
- S. J. Kamel, N. Mrosovsky
- Geography, Medicine
- Ecological applications : a publication of the…
- 1 June 2006
The thermal profile of a relatively pristine hawksbill nesting beach in Guadeloupe was examined to assess the relative contributions of the different beach zones to the primary sex ratio: significantly more males were likely to be produced in the forested areas than in the more open, deforested areas. Expand
Methods of estimating natural sex ratios of sea turtles from incubation temperatures and laboratory data.
Temperature of natural nests provided a better prediction of the actual independently verified sex ratios than incubation duration of hawksbill turtles nesting on Mona Island, Puerto Rico, and recommendations are made for estimating sex ratios of hatchlings on beaches for which there is currently no information. Expand
Reproductive biology, family conflict, and size of offspring in marine invertebrates.
- S. J. Kamel, Fernanda X. Oyarzún, R. Grosberg
- Biology, Medicine
- Integrative and comparative biology
- 1 October 2010
The potential impacts of family conflict on offspring traits are explored by comparing the life histories of two exemplar species of marine organisms, the polychaete Boccardia proboscidea and the gastropod Solenosteira macrospira, emphasizing how differences in modes of fertilization and parental care might influence the phenotype and, consequently, the fitness of offspring. Expand
Genetic Relatedness Influences Plant Biomass Accumulation in Eelgrass (Zostera marina)
- J. Stachowicz, S. J. Kamel, A. Hughes, R. Grosberg
- Biology, Medicine
- The American Naturalist
- 25 March 2013
The genetic relatedness of an assemblage strongly predicted its biomass, more so than the number of genotypes, however, contrary to the pattern observed in multispecies assemblages, maximum biomass occurred in assembls of more closely related individuals. Expand
Nesting Ecology of the Hawksbill Turtle, Eretmochelys imbricata, in Guadeloupe, French West Indies from 2000–07
Surprisingly, it appears that the island of Guadeloupe hosts one of the largest Hawksbill populations in this region, highlighting the importance of making the most recent data available for the purposes of wildlife management. Expand
Inter-seasonal maintenance of individual nest site preferences in hawksbill sea turtles.
Within a single population of hawksbill sea turtles, a behavioral polymorphism for maternal nest site choice with respect to beach microhabitat characteristics is found, suggesting that fidelity to particular microhabits is a major determinant of the observed nesting patterns. Expand