scholarly journals Spatial ecology of loggerhead turtles: Insights from stable isotope markers and satellite telemetry

2020 ◽  
Vol 26 (3) ◽  
pp. 368-381 ◽  
Author(s):  
Julia C. Haywood ◽  
Wayne J. Fuller ◽  
Brendan J. Godley ◽  
Dimitris Margaritoulis ◽  
Jamie D. Shutler ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Spatial Ecology ◽  
Satellite Telemetry ◽  
Loggerhead Turtles

scholarly journals Epibionts Reflect Spatial and Foraging Ecology of Gulf of Mexico Loggerhead Turtles (Caretta caretta)

2021 ◽  
Vol 9 ◽  
Author(s):  
Ian Silver-Gorges ◽  
Jeroen Ingels ◽  
Giovanni A. P. dos Santos ◽  
Yirina Valdes ◽  
Leticia P. Pontes ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Gulf Of Mexico ◽  
Habitat Use ◽  
Spatial Ecology ◽  
Foraging Ecology ◽  
Satellite Telemetry ◽  
Caretta Caretta ◽  
Sea Turtle ◽  
Loggerhead Turtles ◽  
Nesting Beaches

Sea turtles are exposed to numerous threats during migrations to their foraging grounds and at those locations. Therefore, information on sea turtle foraging and spatial ecology can guide conservation initiatives, yet it is difficult to directly observe migrating or foraging turtles. To gain insights into the foraging and spatial ecology of turtles, studies have increasingly analyzed epibionts of nesting turtles, as epibionts must overlap spatially and ecologically with their hosts to colonize successfully. Epibiont analysis may be integrated with stable isotope information to identify taxa that can serve as indicators of sea turtle foraging and spatial ecology, but few studies have pursued this. To determine if epibionts can serve as indicators of foraging and spatial ecology of loggerhead turtles nesting in the northern Gulf of Mexico we combined turtle stable isotope and taxonomic epibiont analysis. We sampled 22 individual turtles and identified over 120,000 epibiont individuals, belonging to 34 macrofauna taxa (>1 mm) and 22 meiofauna taxa (63 μm–1 mm), including 111 nematode genera. We quantified epidermis δ13C and δ15N, and used these to assign loggerhead turtles to broad foraging regions. The abundance and presence of macrofauna and nematodes did not differ between inferred foraging regions, but the presence of select meiofauna taxa differentiated between three inferred foraging regions. Further, dissimilarities in macrofauna, meiofauna, and nematode assemblages corresponded to dissimilarities in individual stable isotope values within inferred foraging regions. This suggests that certain epibiont taxa may be indicative of foraging regions used by loggerhead turtles in the Gulf of Mexico, and of individual turtle foraging and habitat use specialization within foraging regions. Continued sampling of epibionts at nesting beaches and foraging grounds in the Gulf of Mexico and globally, coupled with satellite telemetry and/or dietary studies, can expand upon our findings to develop epibionts as efficient indicators of sea turtle foraging and spatial ecology.

scholarly journals Migration Paths of the Adult Female and Male Loggerhead Turtles Caretta caretta Determined through Satellite Telemetry

1997 ◽  
Vol 63 (4) ◽  
pp. 547-552 ◽  
Author(s):  
Wataru Sakamoto ◽  
Takeharu Bando ◽  
Nobuaki Arai ◽  
Norihisa Baba
Keyword(s):  
Adult Female ◽  
Satellite Telemetry ◽  
Caretta Caretta ◽  
Loggerhead Turtles

Distribution of foraging habitats of male loggerhead turtles (Caretta caretta) as revealed by stable isotopes and satellite telemetry

2012 ◽  
Vol 159 (6) ◽  
pp. 1255-1267 ◽  
Author(s):  
Mariela Pajuelo ◽  
Karen A. Bjorndal ◽  
Kimberly J. Reich ◽  
Michael D. Arendt ◽  
Alan B. Bolten
Keyword(s):  
Stable Isotopes ◽  
Satellite Telemetry ◽  
Caretta Caretta ◽  
Loggerhead Turtles

Assessing the spatial ecology and resource use of a mobile and endangered species in an urbanized landscape using satellite telemetry and DNA faecal metabarcoding

Ibis ◽  
2016 ◽  
Vol 159 (2) ◽  
pp. 390-405 ◽  
Author(s):  
Christine Groom ◽  
Nicole E. White ◽  
Nicola Mitchell ◽  
J. Dale Roberts ◽  
Peter Mawson
Keyword(s):  
Endangered Species ◽  
Resource Use ◽  
Spatial Ecology ◽  
Satellite Telemetry

scholarly journals Foraging ecology of Mediterranean juvenile loggerhead turtles: insights from C and N stable isotope ratios

2020 ◽  
Vol 167 (3) ◽  
Author(s):  
Julia C. Haywood ◽  
Paolo Casale ◽  
Daniela Freggi ◽  
Wayne J. Fuller ◽  
Brendan J. Godley ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Foraging Ecology ◽  
Isotope Ratios ◽  
Stable Isotope Ratios ◽  
Loggerhead Turtles ◽  
C And N

Further Evidence for Site Fidelity to Wing Molt Locations by King Eiders: Integrating Stable Isotope Analyses and Satellite Telemetry

Waterbirds ◽  
2007 ◽  
Vol 30 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Michael J. Knoche ◽  
Abby N. Powell ◽  
Lori T. Quakenbush ◽  
Matthew J. Wooller ◽  
Laura M. Phillips
Keyword(s):  
Stable Isotope ◽  
Site Fidelity ◽  
Satellite Telemetry ◽  
Stable Isotope Analyses ◽  
Isotope Analyses

scholarly journals The spatial ecology of juvenile loggerhead turtles (Caretta caretta) in the Indian Ocean sheds light on the “lost years” mystery

2014 ◽  
Vol 161 (8) ◽  
pp. 1835-1849 ◽  
Author(s):  
Mayeul Dalleau ◽  
Simon Benhamou ◽  
Joël Sudre ◽  
Stéphane Ciccione ◽  
Jérôme Bourjea
Keyword(s):  
Indian Ocean ◽  
Spatial Ecology ◽  
Caretta Caretta ◽  
Loggerhead Turtles ◽  
The Indian Ocean
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