Stable carbon and nitrogen isotope discrimination in soft tissues of the leatherback turtle (Dermochelys coriacea): Insights for trophic studies of marine turtles

Angerbjörn, 1994, Dietary variation in arctic foxes (Alopex lagopus) — an analysis of stable carbon isotopes, Oecologia, 99, 226, 10.1007/BF00627734 Araújo, 2007, Using δ13C stable isotopes to quantify individual-level diet variation, Oecologia, 152, 643, 10.1007/s00442-007-0687-1 Ayliffe, 2004, Turnover of carbon isotopes in tail hair and breath CO2 of horses fed an isotopically varied diet, Oecologia, 139, 11, 10.1007/s00442-003-1479-x Barnes, 2008, The importance of quantifying inherent variability when interpreting stable isotope field data, Oecologia, 155, 227, 10.1007/s00442-007-0904-y Bearhop, 2004, Determining trophic niche width: a novel approach using stable isotope analysis, J. Anim. Ecol., 73, 1007, 10.1111/j.0021-8790.2004.00861.x Birkenmeier, 1971, Juvenile leatherback turtles, Dermochelys coriacea (Linnaeus), in captivity, Brunei Mus. J., 3, 160 Block, 2003, Revealing pelagic habitat use: the tagging of Pacific pelagics program, Oceanologica Acta, 25, 255, 10.1016/S0399-1784(02)01212-4 Booth, 2002, The doubly-labeled water technique is impractical for measurement of field metabolic rate in freshwater turtles, Herpetol. Rev., 33, 105 Caraveo-Patiño, 2005, Stable carbon isotope ratios for the gray whale (Eschrichtius robustus) in the breeding grounds of Baja California Sur, Mexico, Hydrobiologia, 539, 99, 10.1007/s10750-004-3370-0 Caut, 2008, Isotope analysis reveals foraging area dichotomy for Atlantic leatherback turtles, PLoS ONE, 3, 1845, 10.1371/journal.pone.0001845 Cerling, 1999, Carbon isotope fractionation between diet and bioapatite in ungulate mammals and implications for ecological and paleontological studies, Oecologia, 120, 347, 10.1007/s004420050868 Dalerum, 2005, Resolving temporal variation in vertebrate diets using naturally occurring stable isotopes, Oecologia, 144, 647, 10.1007/s00442-005-0118-0 DeNiro, 1977, Mechanism of carbon isotope fractionation associated with lipid synthesis, Science, 197, 261, 10.1126/science.327543 DeNiro, 1978, Influence of diet on the distribution of carbon isotopes in animals, Geochim. Cosmochim. Acta, 42, 495, 10.1016/0016-7037(78)90199-0 DeNiro, 1981, Influence of diet on the distribution of nitrogen isotopes in animals, Geochim. Cosmochim. Acta, 45, 341, 10.1016/0016-7037(81)90244-1 Doyle, 2007, The energy density of jellyfish: estimates from bomb-calorimetry and proximate-composition, J. Exp. Mar. Biol. Ecol., 343, 239, 10.1016/j.jembe.2006.12.010 Efron, 1993 Evans Ogden, 2004, Blood isotopic (δ13C and δ15N) turnover and diet-tissue fractionation factors in captive Dunlin (Calidris alpina pacifica), Auk, 121, 170, 10.1642/0004-8038(2004)121[0170:BICANT]2.0.CO;2 Fair, P.A., Hansen, L.J., 1998. Report of the Sea Turtle Health Assessment Workshop, 2–3 February 1998, Part I: Background and Information Needs. NOAA Tech Memo NOS-NCCOS-CCEHBR-003. Gannes, 1997, Stable isotopes in animal ecology: assumptions, caveats, and a call for more laboratory experiments, Ecology, 78, 1271, 10.1890/0012-9658(1997)078[1271:SIIAEA]2.0.CO;2 Gelman, 2004 Gorokhova, 1999, An experimental study on variations in stable carbon and nitrogen isotope fractionation during growth of Mysis mixta and Neomysis integer, Can. J. Fish. Aquat. Sci., 56, 2203, 10.1139/f99-149 Grey, 2001, Ontogeny and dietary specialization in brown trout (Salmo trutta L.) from Loch Ness, Scotland, examined using stable isotopes of carbon and nitrogen, Ecol. Freshw. Fish, 10, 168, 10.1034/j.1600-0633.2001.100306.x Gu, 1997, Intrapopulation feeding diversity in blue tilapia: evidence from stable-isotope analyses, Ecology, 78, 2263 Hesslein, 1993, Replacement of sulfur, carbon, and nitrogen in tissue of growing broad whitefish (Coregonus nasus) in response to a change in diet traced by δ34S, δ13C, and δ15N, Can. J. Fish. Aquat. Sci., 50, 2071, 10.1139/f93-230 Hobson, 1993, Trophic relationships among high Arctic seabirds: insights from tissue-dependent stable isotope models, Mar. Ecol. Prog. Ser., 95, 7, 10.3354/meps095007 Hobson, 1992, Assessing avian diets using stable isotopes II: factors influencing diet-tissue fractionation, Condor, 94, 189, 10.2307/1368808 Hobson, 1996, Stable carbon and nitrogen isotopic fractionation between diet and tissues of captive seals: implications for dietary reconstructions involving marine mammals, Can. J. Fish. Aquat. Sci., 53, 528, 10.1139/f95-209 Houghton, 2006, Jellyfish aggregations and leatherback turtle foraging patterns in a temperate coastal environment, Ecology, 87, 1967, 10.1890/0012-9658(2006)87[1967:JAALTF]2.0.CO;2 James, 2001, Feeding of Dermochelys coriacea on Medusae in the Northwest Atlantic, Chel. Conserv. Biol., 4, 202 Jones, T.T., 2009. Energetics of the leatherback turtle, Dermochelys coriacea. PhD Dissertation. Department of Zoology, University of British Columbia. Vancouver, Canada. http://hdl.handle.net/2429/7454. Jones, 2000, Rearing leatherback hatchlings: protocols, growth and survival, Mar. Tur. Newsl., 90, 3 Jones, 2009, Validation of the use of doubly labeled water for estimating metabolic rate in the green turtle (Chelonia mydas L.): a word of caution, J. Exp. Biol., 212, 2635, 10.1242/jeb.029330 Klaassen, 2004, Effects of diet change on carbon and nitrogen stable-isotope ratios in blood cells and plasma of the long-nosed bandicoot (Perameles nasuta), Austral. J. Zool., 52, 635, 10.1071/ZO04029 Kurle, 2002, Stable-isotope ratios of blood components from captive northern fur seals (Callorhinus ursinus) and their diet: applications for studying the foraging ecology of wild otariids, Can. J. Zool., 80, 902, 10.1139/z02-069 Lehninger, 1982 Lunn, 2000, WinBUGS — a Bayesian modeling framework: concepts, structure, and extensibility, Statist. Comput., 10, 325, 10.1023/A:1008929526011 Lutcavage, 1986, Metabolic rate and food energy requirements of the leatherback sea turtle, Dermochelys coriacea, Copeia, 1986, 796, 10.2307/1444962 Lutcavage, 1989, Blood and tissue oxygen content in leatherback sea turtles, Amer. Zool., 29, 57A Matthews, 2004, A critical evaluation of intrapopulation variation of δ13C and isotopic evidence of individual specialization, Oecologia, 140, 361, 10.1007/s00442-004-1579-2 McCutchan, 2003, Variation in trophic shift for stable isotope ratios of carbon, nitrogen, and sulfur, Oikos, 102, 378, 10.1034/j.1600-0706.2003.12098.x Michener, 1994, Stable isotope ratios as tracers in marine aquatic food webs, 138 Miniwaga, 1984, Stepwise enrichment of 15N along food chains: further evidence of the relation between d15N and animal age, Geochim. Cosmochim. Acta, 48, 1135, 10.1016/0016-7037(84)90204-7 Ortiz, 2000, Effects of acute fresh water exposure on water flux rates and osmotic responses in Kemp's Ridley sea turtles (Lepidochelys kempi), Comp. Biochem. Phys. A, 127, 81, 10.1016/S1095-6433(00)00240-3 Owens, 1980, New methods of obtaining blood and cerebrospinal fluid from marine turtles, Herpetologica, 36, 17 Pearson, 2003, Effects of elemental composition on the incorporation of dietary nitrogen and carbon isotopic signatures in an omnivorous songbird, Oecologia, 135, 516, 10.1007/s00442-003-1221-8 Peterson, 1987, Stable isotopes in ecosystem studies, Ann. Rev. Ecol. Syst., 18, 293, 10.1146/annurev.es.18.110187.001453 Pinnegar, 1999, Differential fractionation of 13C and 15N among fish tissues: implications for the study of trophic interactions, Funct. Ecol., 13, 225, 10.1046/j.1365-2435.1999.00301.x Podlesak, 2005, Stable isotopes in breath, blood, feces and feathers can indicate intra-individual changes in the diet of migratory songbirds, Oecologia, 142, 501, 10.1007/s00442-004-1737-6 Ponsard, 1999, Should growing and adult animals fed on the same diet show different δ15N values?, Rapid Comm. Mass Spectrom., 13, 1305, 10.1002/(SICI)1097-0231(19990715)13:13<1305::AID-RCM654>3.0.CO;2-D Popp, 2007, Insight into the trophic ecology of yellowfin tuna, Thunnus albacares, from compound-specific nitrogen isotope analysis of protenaceous amino acids, 173 Post, 2002, Using stable isotopes to estimate trophic position: models, methods, and assumptions, Ecology, 83, 703, 10.1890/0012-9658(2002)083[0703:USITET]2.0.CO;2 Reich, 2008, Effects of growth and tissue type on the kinetics of 13C and 15N incorporation in a rapidly growing ectotherm, Oecologia, 155, 10.1007/s00442-007-0949-y Roth, 2000, Stable carbon and nitrogen isotopic fractionation between diet and tissue of captive red fox: implications for dietary reconstruction, Can. J. Zool., 78, 848, 10.1139/z00-008 Salmon, 2004, Ontogeny of diving and feeding behavior in juvenile sea turtles: a comparison study of green turtles (Chelonia mydas L.) and leatherbacks (Dermochelys coriacea L.) in the Florida current, J. Herpetol., 38, 36, 10.1670/228-01A Seminoff, 2006, Stable isotope discrimination (δ13C and δ15N) between soft tissues of green sea turtles Chelonia mydas and their diet, Mar. Ecol. Prog. Ser., 308, 271, 10.3354/meps308271 Seminoff, 2007, Stable carbon and nitrogen isotope discrimination and turnover in Pond Sliders Trachemys scripta: insights for trophic study of freshwater turtles, Copeia, 2007, 534, 10.1643/0045-8511(2007)2007[534:SCANID]2.0.CO;2 Sweeting, 2005, Variance in isotopic signatures as a descriptor of tissue turnover and degree of omnivory, Funct. Ecol., 19, 777, 10.1111/j.1365-2435.2005.01019.x Tieszen, 1993, Effect of diet quality and composition on the isotopic composition of respiratory CO2, bone collagen, bioapatite, and soft tissues, 123 Tieszen, 1983, Fractionation and turnover of stable carbon isotopes in animal tissues: implications for δ13C analysis of diet, Oecologia, 57, 32, 10.1007/BF00379558 Vander Zanden, 2001, Variation in δ15N and δ13C trophic fractionation: implications for aquatic food web studies, Limnol. Oceanogr., 46, 2061, 10.4319/lo.2001.46.8.2061 Vanderklift, 2007, Sources of variation in consumer-diet δ15N enrichment: a meta-analysis, Oecologia, 136, 169, 10.1007/s00442-003-1270-z Wallace, 2008, What makes marine turtles go: a review of metabolic rates and their consequences, J. Exp. Mar. Biol. Ecol., 356, 8, 10.1016/j.jembe.2007.12.023 Wallace, 2005, Bioenergetics and diving activity of interesting leatherback turtles Dermochelys coriacea at Parque Nacional Marino Las Baulas, Costa Rica, J. Exp. Biol., 208, 3873, 10.1242/jeb.01860 Wallace, 2006, Leatherback turtles as oceanographic indicators: stable isotope analyses reveal a trophic dichotomy between ocean basins, Mar. Biol., 149, 953, 10.1007/s00227-006-0247-y Wallace, 2009, The diet composition of immature loggerheads: insights on trophic niche, growth rates, and fisheries interactions, J. Exp. Mar. Biol. Ecol., 373, 50, 10.1016/j.jembe.2009.03.006 Wieser, 1985, A new look at energy conversion in ectothermic and endothermic animals, Oecologia, 66, 506, 10.1007/BF00379341 Witt, 2007, Prey landscapes help identify potential foraging habitats for leatherback turtles in the NE Atlantic, Mar. Ecol. Prog. Ser., 337, 231, 10.3354/meps337231