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AuthorChatting, Mark
AuthorSmyth, David
AuthorAl-Maslamani, Ibrahim
AuthorObbard, Jeffrey
AuthorAl-Ansi, Mehsin
AuthorHamza, Shafeeq
AuthorAl-Mohanady, Salman Fahad
AuthorAl-Kuwari, Ali Jassim
AuthorMarshall, Christopher D.
Available date2019-04-18T09:17:48Z
Publication Date2018-09-07
Publication NamePLoS ONEen_US
Identifierhttp://dx.doi.org/10.1371/journal.pone.0203257
CitationChatting M, Smyth D, Al-Maslamani I, Obbard J, Al-Ansi M, Hamza S, et al. (2018) Nesting ecology of hawksbill turtles, Eretmochelys imbricata, in an extreme environmental setting. PLoS ONE 13(9): e0203257. https://doi.org/ 10.1371/journal.pone.0203257
URIhttp://hdl.handle.net/10576/11493
AbstractRelatively few details of hawksbill turtle (Eretmochelys imbricata) nesting ecology exist within the Arabian Gulf. Moreover, little is known about how their nesting dynamics compare to nesting populations throughout the rest of the world. Due to the extreme environmental setting, nesting ecology of hawksbills in the Arabian Gulf is of significant interest to researchers and conservationists. The current research reports on a long-term tagging and monitoring program undertaken at Fuwairit beach, Qatar. To investigate nesting behavior, site surveys and tagging were employed from 2010 to 2016. Presence of nests and clutch sizes were confirmed by excavation. Over the entire study period, nesting hawksbills had a mean curved carapace length of 70.8 cm (SD±2.8). A total 187 nests were confirmed, which contained a mean 78.9 eggs per clutch (SD±17.1), over an annual nesting season that lasted an average of 52.2 days (SD±6.3) from the start of April to the start of June. Meta-analysis with other global regions showed these characteristics to be significantly reduced when compared to nesting hawksbills from other populations. Meteorological data analysis showed air temperatures in the Arabian Gulf to increase on average 13.2°C (SD±0.26) from start to the end of nesting annually, which is significantly greater than other global nesting regions. Their smaller body size and reduced fecundity coupled with the extreme change in ambient air temperatures support the hypothesis that hawksbills in the region are more at risk than the already critically endangered hawksbill populations elsewhere in the world.
SponsorThis study was funded and the work was approved for publication by Qatar Petroleum. Author Christopher D Marshall was supported by grant number5-642-1-110from the Qatar National Research Fund.
Languageen
PublisherPublic Library of Science
SubjectQatar
Subjecthawksbill turtle
TitleNesting ecology of hawksbill turtles, Eretmochelys imbricata, in an extreme environmental setting
TypeArticle
dc.identifier.essn 1932-6203


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