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  • Chatting Mark
    Qatar University
  • David Smyth
    Qatar University
  • Ibrahim Al-Maslamani
  • Jeffrey Obbard
    Qatar University
  • Mehsin Al-Ansi
    Qatar University
  • Shafeeq Hamza
    Qatar University
  • Salman Fahad Al-Mohanady
    Ras Laffan Industrial City, Doha, Qatar
  • Ali Jassim Al-Kuwari
    Ministry of Municipalities and Environment, Doha, Qata
  • Christopher D. Marshall
    Texas A&M University at Galveston
Relatively 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.
Original languageEnglish
Article numbere0203257
JournalPLoS ONE
Volume13
Issue number9
DOIs
Publication statusPublished - 7 Sep 2018

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