In search of the “missing majority” of nesting loggerhead turtles: improved inter-seasonal recapture rates through subpopulation-scale genetic tagging

2021 ◽  
Vol 168 (2) ◽  
Author(s):  
Brian M. Shamblin ◽  
Mark G. Dodd ◽  
S. Michelle Pate ◽  
Matthew H. Godfrey ◽  
Joseph B. Pfaller ◽  
...  
Keyword(s):  
Genetic Tagging ◽  
Loggerhead Turtles

Nesting activity of loggerhead turtles (2013–2020) and 20 years abundance trend (2001–2020) on Çıralı Beach, Turkey

2021 ◽  
Vol 44 ◽  
pp. 101758
Author(s):  
Bektaş Sönmez ◽  
Erdal Elginöz ◽  
Mustafa Ilgaz ◽  
Habib Altınkaya
Keyword(s):  
Loggerhead Turtles ◽  
Nesting Activity

scholarly journals Dietary analysis of two sympatric marine turtle species in the eastern Mediterranean

2021 ◽  
Vol 168 (6) ◽  
Author(s):  
Josie L. Palmer ◽  
Damla Beton ◽  
Burak A. Çiçek ◽  
Sophie Davey ◽  
Emily M. Duncan ◽  
...  
Keyword(s):  
Green Turtle ◽  
Eastern Mediterranean ◽  
Chelonia Mydas ◽  
Marine Turtle ◽  
Dietary Analysis ◽  
Low Frequencies ◽  
Turtle Species ◽  
Dietary Shift ◽  
Green Turtles ◽  
Loggerhead Turtles

AbstractDietary studies provide key insights into threats and changes within ecosystems and subsequent impacts on focal species. Diet is particularly challenging to study within marine environments and therefore is often poorly understood. Here, we examined the diet of stranded and bycaught loggerhead (Caretta caretta) and green turtles (Chelonia mydas) in North Cyprus (35.33° N, 33.47° E) between 2011 and 2019. A total of 129 taxa were recorded in the diet of loggerhead turtles (n = 45), which were predominantly carnivorous (on average 72.1% of dietary biomass), foraging on a large variety of invertebrates, macroalgae, seagrasses and bony fish in low frequencies. Despite this opportunistic foraging strategy, one species was particularly dominant, the sponge Chondrosia reniformis (21.5%). Consumption of this sponge decreased with increasing turtle size. A greater degree of herbivory was found in green turtles (n = 40) which predominantly consumed seagrasses and macroalgae (88.8%) with a total of 101 taxa recorded. The most dominant species was a Lessepsian invasive seagrass, Halophila stipulacea (31.1%). This is the highest percentage recorded for this species in green turtle diet in the Mediterranean thus far. With increasing turtle size, the percentage of seagrass consumed increased with a concomitant decrease in macroalgae. Seagrass was consumed year-round. Omnivory occurred in all green turtle size classes but reduced in larger turtles (> 75 cm CCL) suggesting a slow ontogenetic dietary shift. Macroplastic ingestion was more common in green (31.6% of individuals) than loggerhead turtles (5.7%). This study provides the most complete dietary list for marine turtles in the eastern Mediterranean.

The Migration of Newly-hatched Loggerhead Turtles Toward the Sea

Science ◽  
1947 ◽  
Vol 106 (2756) ◽  
pp. 398-399
Author(s):  
Robert S. Daniel ◽  
Karl U. Smith
Keyword(s):  
Loggerhead Turtles

Nest placement by loggerhead turtles, Caretta caretta

1993 ◽  
Vol 45 (1) ◽  
pp. 47-53 ◽  
Author(s):  
Graeme C. Hays ◽  
John R. Speakman
Keyword(s):  
Caretta Caretta ◽  
Nest Placement ◽  
Loggerhead Turtles
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