ArticleEcology and evolution2013
Strong male-biased operational sex ratio in a breeding population of loggerhead turtles (Caretta caretta) inferred by paternal genotype reconstruction analysis.
Article in Ecology and evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 39 citations in OpenAlex.
- Perivitelline Membrane-Bound Sperm as a Source of Paternal Genomic DNA to Inform Breeding Male Marine Turtle Genetics and Demographics.Ecology and evolution · 2026Article
- Green Turtle Conservation in the Genomic Era-Monitoring an Endangered Mediterranean Population and Its Breeding Habits.Ecology and evolution · 2025Article
- Reproductive strategies in loggerhead sea turtlePeerJ · 2025Article
- Article
- Potential drivers and implications of a balanced breeding sex ratio in a small population of an imperiled species with environmental sex determination.Ecology and evolution · 2024Article
- New colonisers drive the increase of the emerging loggerhead turtle nesting in Western Mediterranean.Scientific reports · 2024Article
- Conservation Genetics of the Loggerhead Sea Turtle,Animals : an open access journal from MDPI · 2023Article
- Multiple maternal risk-management adaptations in the loggerhead sea turtle (Caretta caretta) mitigate clutch failure caused by catastrophic storms and predators.Scientific reports · 2021Article
- Female loggerhead sea turtles (Ecology and evolution · 2020Article
- Breeding sex ratio and population size of loggerhead turtles from Southwestern Florida.PloS one · 2018Article
- Genetic variation, multiple paternity, and measures of reproductive success in the critically endangered hawksbill turtle (Eretmochelys imbricata).Ecology and evolution · 2015Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Characterization of a species mating systems is fundamental for understanding the natural history and evolution of that species. Polyandry can result in the multiple paternity of progeny arrays. The only previous study of the loggerhead turtle (Caretta caretta) in the USA showed that within the large peninsular Florida subpopulation, multiple paternity occurs in approximately 30% of clutches. Our study tested clutches from the smaller northern subpopulation for the presence of multiple paternal contributions. We examined mothers and up to 20 offspring from 19.5% of clutches laid across three nesting seasons (2008-2010) on the small nesting beach on Wassaw Island, Georgia, USA. We found that 75% of clutches sampled had multiple fathers with an average of 2.65 fathers per nest (1-7 fathers found). The average number of fathers per clutch varied among years and increased with female size. There was no relationship between number of fathers and hatching success. Finally, we found 195 individual paternal genotypes and determined that each male contributed to no more than a single clutch over the 3-year sampling period. Together these results suggest that the operational sex ratio is male-biased at this site.
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