Global sea turtle conservation successes.
Antonios D. Mazaris,Gail Schofield,Gail Schofield,Chrysoula Gkazinou,Vasiliki Almpanidou,Graeme C. Hays +5 more
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TLDR
There is a tendency for published estimates of population size in sea turtles to be increasing rather than decreasing across the globe, and it is shown that, often, time series are too short to identify trends in abundance.Abstract:
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.read more
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Rebuilding marine life
Carlos M. Duarte,Carlos M. Duarte,Susana Agustí,Edward B. Barbier,Gregory L. Britten,Juan Carlos Castilla,Jean-Pierre Gattuso,Jean-Pierre Gattuso,Jean-Pierre Gattuso,Robinson W. Fulweiler,Terry P. Hughes,Nancy Knowlton,Catherine E. Lovelock,Heike K. Lotze,Milica Predragovic,Elvira S. Poloczanska,Callum M. Roberts,Boris Worm +17 more
TL;DR: Recovery rates across studies suggest that substantial recovery of the abundance, structure and function of marine life could be achieved by 2050 if major pressures, including climate change, are mitigated.
Journal ArticleDOI
Turtles and Tortoises Are in Trouble
Craig B. Stanford,Craig B. Stanford,John B. Iverson,Anders G. J. Rhodin,Peter Paul van Dijk,Russell A. Mittermeier,Gerald Kuchling,Kristin H. Berry,Alberto Bertolero,Karen A. Bjorndal,Torsten E.G. Blanck,Kurt A. Buhlmann,Russell L. Burke,Justin D. Congdon,Tomas Diagne,Taylor Edwards,Carla C. Eisemberg,Josh R. Ennen,German Forero-Medina,Matt Frankel,Uwe Fritz,Natalia Gallego-García,Natalia Gallego-García,Arthur Georges,J. Whitfield Gibbons,Shiping Gong,Eric V. Goode,Haitao T. Shi,Ha Hoang,Margaretha D. Hofmeyr,Brian D. Horne,Rick Hudson,James O. Juvik,Ross A. Kiester,Patricia Koval,Minh Duc Le,Minh Duc Le,Peter V. Lindeman,Jeffrey E. Lovich,Luca Luiselli,Timothy E.M. McCormack,George A. Meyer,Vivian P. Páez,Kalyar Platt,Steven G. Platt,Peter C. H. Pritchard,Hugh R. Quinn,Willem M. Roosenburg,Jeffrey A. Seminoff,H. Bradley Shaffer,Ricky Spencer,James U. Van Dyke,Richard C. Vogt,Andrew D. Walde +53 more
TL;DR: Survival threats to turtles and tortoises are examined and the interventions that will be needed to prevent widespread extinction in this group in coming decades are discussed.
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Mediterranean sea turtles: current knowledge and priorities for conservation and research
Paolo Casale,Annette C. Broderick,Juan Antonio Camiñas,Luis Cardona,Carlos Carreras,Andreas Demetropoulos,Wayne J. Fuller,Brendan J. Godley,Sandra Hochscheid,Yakup Kaska,Bojan Lazar,Dimitris Margaritoulis,Aliki Panagopoulou,Alan F. Rees,Jesús Tomás,Oğuz Türkozan +15 more
TL;DR: The Cyprus Wildlife Society (CWS) as mentioned in this paper has presented the financial support of the Department of Fisheries and Marine Research of the Government of Cyprus for the implementation of the Turtle Conservation Project in the period 2010−2016 and for all its assistance to the Society in previous years.
Journal ArticleDOI
Drones for research on sea turtles and other marine vertebrates - A review
TL;DR: In this article, the authors discuss the emerging possibilities of how UAVs can become part of the standard methodologies for sea turtle ecologists through combining information on abundance and behaviour.
Journal ArticleDOI
Adaptive marine conservation planning in the face of climate change: What can we learn from physiological, ecological and genetic studies?
Gil Rilov,Antonios D. Mazaris,Vanessa Stelzenmüller,Brian Helmuth,Martin Wahl,Tamar Guy-Haim,Nova Mieszkowska,Jean-Baptiste Ledoux,Jean-Baptiste Ledoux,Stelios Katsanevakis +9 more
TL;DR: In this paper, the authors explore how climate threats do not necessarily follow latitudinal gradients, such that both risk hotspots and refugia occur in mosaic distributions along species ranges - patterns that may be undetectable without knowledge of biological vulnerabilities at regional and local scales.
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TL;DR: Most indicators of the state of biodiversity showed declines, with no significant recent reductions in rate, whereas indicators of pressures on biodiversity showed increases, indicating that the Convention on Biological Diversity’s 2010 targets have not been met.
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