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Global sea turtle conservation successes

Mazaris, Antonios D., Schofield, Gail, Gkazinou, Chrysoula, Almpanidou, Vasiliki and Hays, Graeme C. 2017, Global sea turtle conservation successes, Science advances, vol. 3, no. 9, pp. 1-7, doi: 10.1126/sciadv.1600730.

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Title Global sea turtle conservation successes
Author(s) Mazaris, Antonios D.
Schofield, GailORCID iD for Schofield, Gail orcid.org/0000-0002-8438-4181
Gkazinou, Chrysoula
Almpanidou, Vasiliki
Hays, Graeme C.ORCID iD for Hays, Graeme C. orcid.org/0000-0002-3314-8189
Journal name Science advances
Volume number 3
Issue number 9
Article ID e1600730
Start page 1
End page 7
Total pages 7
Publisher American Association for the Advancement of Science
Place of publication Washington, D.C.
Publication date 2017-09-20
ISSN 2375-2548
Keyword(s) Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
LONG-TERM TRENDS
CLIMATE-CHANGE
POPULATION RECOVERY
LEATHERBACK TURTLE
MARINE TURTLES
CHELONIA-MYDAS
BIOLOGY
EXTINCTION
LOGGERHEAD
ECOSYSTEMS
Summary We document a tendency for published estimates of population size in sea turtles to be increasing rather than decreasing across the globe. To examine the population status of the seven species of sea turtle globally, we obtained 299 time series of annual nesting abundance with a total of 4417 annual estimates. The time series ranged in length from 6 to 47 years (mean, 16.2 years). When levels of abundance were summed within regional management units (RMUs) for each species, there were upward trends in 12 RMUs versus downward trends in 5 RMUs. This prevalence of more upward than downward trends was also evident in the individual time series, where we found 95 significant increases in abundance and 35 significant decreases. Adding to this encouraging news for sea turtle conservation, we show that even small sea turtle populations have the capacity to recover, that is, Allee effects appear unimportant. Positive trends in abundance are likely linked to the effective protection of eggs and nesting females, as well as reduced bycatch. However, conservation concerns remain, such as the decline in leatherback turtles in the Eastern and Western Pacific. Furthermore, we also show that, often, time series are too short to identify trends in abundance. Our findings highlight the importance of continued conservation and monitoring efforts that underpin this global conservation success story.
Language eng
DOI 10.1126/sciadv.1600730
Field of Research 050202 Conservation and Biodiversity
050205 Environmental Management
070401 Aquaculture
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution non-commercial licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30103129

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.