scholarly journals Do leatherback turtles Dermochelys coriacea forage during the breeding season? A combination of data-logging devices provide new insights

2006 ◽  
Vol 322 ◽  
pp. 259-267 ◽  
Author(s):  
AE Myers ◽  
GC Hays
Keyword(s):  
Breeding Season ◽  
Dermochelys Coriacea ◽  
Data Logging ◽  
Leatherback Turtles

scholarly journals Large-scale movements and high-use areas of western Pacific leatherback turtles,Dermochelys coriacea

Ecosphere ◽  
2011 ◽  
Vol 2 (7) ◽  
pp. art84 ◽  
Author(s):  
Scott R. Benson ◽  
Tomoharu Eguchi ◽  
Dave G. Foley ◽  
Karin A. Forney ◽  
Helen Bailey ◽  
...  
Keyword(s):  
Large Scale ◽  
Western Pacific ◽  
Dermochelys Coriacea ◽  
Leatherback Turtles

scholarly journals Status of Marine Turtles in British Columbia Waters: A Reassessment

2004 ◽  
Vol 118 (1) ◽  
pp. 72 ◽  
Author(s):  
Donald F. McAlpine ◽  
Stan A. Orchard ◽  
Kelly A. Sendall ◽  
Rod Palm
Keyword(s):  
British Columbia ◽  
Marine Environment ◽  
Chelonia Mydas ◽  
Marine Turtle ◽  
Dermochelys Coriacea ◽  
Concerted Effort ◽  
Leatherback Turtles ◽  
Marine Turtles ◽  
Green Turtles

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.

scholarly journals The Effects of Nest Location and Beach Environment on Hatching Success for Leatherback (Dermochelys Coriacea) and Green (Chelonia Mydas) Sea Turtles on Bioko Island, Equatorial Guinea

2021 ◽  
Author(s):  
Callie A. Veelenturf ◽  
Elizabeth M. Sinclair ◽  
Peter Leopold ◽  
Frank V. Paladino ◽  
Shaya Honarvar
Keyword(s):  
Green Turtle ◽  
Hatching Success ◽  
Sea Turtles ◽  
Chelonia Mydas ◽  
Dermochelys Coriacea ◽  
Equatorial Guinea ◽  
Leatherback Turtles ◽  
Nest Location ◽  
Bioko Island ◽  
Elevation Range

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.

scholarly journals A long-term decline in the abundance of endangered leatherback turtles, Dermochelys coriacea, at a foraging ground in the California Current Ecosystem

2020 ◽  
Vol 24 ◽  
pp. e01371 ◽  
Author(s):  
Scott R. Benson ◽  
Karin A. Forney ◽  
Jeffrey E. Moore ◽  
Erin L. LaCasella ◽  
James T. Harvey ◽  
...  
Keyword(s):  
California Current ◽  
Dermochelys Coriacea ◽  
Leatherback Turtles

Sex Determination and Sex Ratios of Pacific Leatherback Turtles, Dermochelys coriacea

Copeia ◽  
1998 ◽  
Vol 1998 (2) ◽  
pp. 291 ◽  
Author(s):  
Christopher A. Binckley ◽  
James R. Spotila ◽  
Kathryne S. Wilson ◽  
Frank V. Paladino
Keyword(s):  
Sex Determination ◽  
Sex Ratios ◽  
Dermochelys Coriacea ◽  
Leatherback Turtles

Health Evaluation of Leatherback Turtles (Dermochelys coriacea) in the Northwestern Atlantic During Direct Capture and Fisheries Gear Disentanglement

2010 ◽  
Vol 9 (2) ◽  
pp. 205-222 ◽  
Author(s):  
Charles Innis ◽  
Constance Merigo ◽  
Kara Dodge ◽  
Michael Tlusty ◽  
Michael Dodge ◽  
...  
Keyword(s):  
Dermochelys Coriacea ◽  
Health Evaluation ◽  
Leatherback Turtles ◽  
Direct Capture
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