Optimism for mitigation of climate warming impacts for sea turtles through nest shading and relocation

Esteban, Nicole, Laloë, Jacques-Olivier, Kiggen, Fionne S. P. L., Ubels, Selma M., Becking, Leontine E., Meesters, Erik H., Berkel, Jessica, Hays, Graeme C. and Christianen, Marjolijn J. A. 2018, Optimism for mitigation of climate warming impacts for sea turtles through nest shading and relocation, Scientific reports, vol. 8, no. 1, doi: 10.1038/s41598-018-35821-6.

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Title Optimism for mitigation of climate warming impacts for sea turtles through nest shading and relocation
Author(s) Esteban, Nicole
Laloë, Jacques-Olivier
Kiggen, Fionne S. P. L.
Ubels, Selma M.
Becking, Leontine E.
Meesters, Erik H.
Berkel, Jessica
Hays, Graeme C.ORCID iD for Hays, Graeme C. orcid.org/0000-0002-3314-8189
Christianen, Marjolijn J. A.
Journal name Scientific reports
Volume number 8
Issue number 1
Article ID 17625
Total pages 8
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2018-12-04
ISSN 2045-2322
2045-2322
Keyword(s) Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
MARINE TURTLE
MANAGEMENT
TEMPERATURE
CONSERVATION
RATIOS
BRAZIL
BEACH
POPULATIONS
CLUTCHES
BEHAVIOR
Summary Increasing incubation temperatures may threaten the viability of sea turtle populations. We explored opportunities for decreasing incubation temperatures at a Caribbean rookery with extreme female-biased hatchling production. To investigate the effect of artificial shading, temperatures were measured under simple materials (white sheet, white sand, palm leaves). To test natural drivers of incubation temperature, temperatures were measured at average nest depths with shading on two beaches. Results from a pilot experiment suggest the most effective material was palm leaves. Shading decreased temperatures by a mean of 0.60 °C (SE = 0.10 °C, N = 20). Variation between beaches averaged 1.88 °C (SE = 0.13 °C, N = 20). We used long-term rookery data combined with experimental data to estimate the effect on sex ratio: relocation and shading could shift ratios from current ranges (97-100% female) to 60-90% female. A conservation mitigation matrix summarises our evidence that artificial shading and nest relocation are effective, low-cost, low-technology conservation strategies to mitigate impacts of climate warming for sea turtles.
Language eng
DOI 10.1038/s41598-018-35821-6
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2018, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30117510

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