scholarly journals Oceanic dispersal of juvenile leatherback turtles: going beyond passive drift modeling

2012 ◽  
Vol 457 ◽  
pp. 265-284 ◽  
Author(s):  
P Gaspar ◽  
SR Benson ◽  
PH Dutton ◽  
A Réveillère ◽  
G Jacob ◽  
...  
Ecosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Junichi Okuyama ◽  
Scott R. Benson ◽  
Peter H. Dutton ◽  
Jeffrey A. Seminoff

Ecosphere ◽  
2011 ◽  
Vol 2 (7) ◽  
pp. art84 ◽  
Author(s):  
Scott R. Benson ◽  
Tomoharu Eguchi ◽  
Dave G. Foley ◽  
Karin A. Forney ◽  
Helen Bailey ◽  
...  

2004 ◽  
Vol 118 (1) ◽  
pp. 72 ◽  
Author(s):  
Donald F. McAlpine ◽  
Stan A. Orchard ◽  
Kelly A. Sendall ◽  
Rod Palm

Marine turtles in British Columbia have previously been considered off course stragglers. Here we document 20 new reports for Green Turtles, Chelonia mydas, and Leatherback Turtles, Dermochelys coriacea, for the province. Until recently there had been no concerted effort to acquire data on marine turtle abundance or frequency off British Columbia. Observations presented here allow a reassessment of marine turtle status in British Columbia waters. We suggest Green Turtles and Leatherbacks should be considered rare vagrants and uncommon seasonal residents, respectively, off British Columbia and that they are a natural part of the British Columbia marine environment.


2017 ◽  
Vol 164 (9) ◽  
Author(s):  
Suzanne E. Roden ◽  
Kelly R. Stewart ◽  
Michael C. James ◽  
Kara L. Dodge ◽  
Florence Dell’Amico ◽  
...  

2019 ◽  
Author(s):  
Autumn-Lynn Harrison

We synthesized a large tracking data set from the Tagging of Pacific Predators to show how the movements and migratory phenology of 1,648 individuals representing 14 species—from leatherback turtles to white sharks—relate to the geopolitical boundaries of the Pacific Ocean throughout species’ annual cycles. Cumulatively, these species visited 86% of Pacific Ocean countries and some spent three-quarters of their annual cycles in the high seas. With our results, we offer answers to questions posed when designing international strategies for managing migratory species.


2021 ◽  
Author(s):  
Callie A. Veelenturf ◽  
Elizabeth M. Sinclair ◽  
Peter Leopold ◽  
Frank V. Paladino ◽  
Shaya Honarvar

Abstract Hatching success in sea turtles is hindered by a variety of biotic and abiotic factors. This study of the nesting ecology of leatherback (Dermochelys coriacea) and green (Chelonia mydas) sea turtles, investigated how several environmental factors and beach characteristics on Bioko Island, Equatorial Guinea influence sea turtle reproductive success. Average clutch hatching success was 40.4% for green turtles and 41.73% for leatherback turtles. For leatherback turtles, clutch elevation relative to the high tide line (HTL) was found to be the most influential factor in determining hatching success, highlighting the sensitivity of this species to sea level rise (SLR). Multiple linear regression analysis demonstrated that nest distance to vegetation and sand conductivity also played significant roles in leatherback clutch hatching success. For leatherback clutches, 33% percent of experimental nests were affected by inundation and 17% by predation. An optimum clutch elevation range for leatherback turtles was identified, where a distinct increase in hatching success was observed between -0.286 m to -0.0528 m above the HTL. For green sea turtles, 64% of experimental nests were affected by predation, confounding conclusions about the roles of environmental characteristics in green turtle hatching success. We propose further investigation into influential characteristics in green turtle nests and confirmation of the observed optimum elevation range on Bioko Island and other nesting grounds. Identified sensitivities of each species to SLR and beach characteristics will be used to encourage the government of Equatorial Guinea to consider the vulnerability of their resident turtle populations when planning for future coastal development.


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