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Volume 47, No. 1

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Using referential values of δ13C and δ15N to infer the foraging ecology of Galápagos seabirds


Authors

GUSTAVO JIMÉNEZ-UZCÁTEGUI1, LEANDRO VACA2, JAVIER COTÍN1, CAROLINA GARCÍA1, ALBA COSTALES1, CHRISTIAN SEVILLA3 & DIEGO PÁEZ-ROSAS2,3*
1Charles Darwin Research Station, Puerto Ayora, Galápagos, Ecuador
2Universidad San Francisco de Quito and Galápagos Science Center, Islas Galápagos, Ecuador *(dpaez@usfq.edu.ec)
3Dirección del Parque Nacional Galápagos, Islas Galápagos, Ecuador

Citation

JIMÉNEZ-UZCÁTEGUI, G., VACA, L., COTÍN, J., GARCÍA, C., COSTALES, A., SEVILLA, C., & PÁEZ-ROSAS, D. 2019. Using referential values of δ13C and δ15N to infer the foraging ecology of Galápagos seabirds. Marine Ornithology 47: 5 - 10
http://doi.org/10.5038/2074-1235.47.1.1284

Received 02 June 2018, accepted 23 August 2018

Date Published: 2019/04/15
Date Online: 2018/10/31
Key words: marine birds, Islas Galápagos, isotopic values, foraging strategies, trophic level

Abstract

The Galápagos Penguin Spheniscus mendiculus, Flightless Cormorant Phalacrocorax harrisi, and Waved Albatross Phoebastria irrorata are endemic to Islas Galápagos. They are known to feed on different prey (including crustaceans, cephalopods, and/or several species of epipelagic and benthic fish), in accordance with different foraging strategies. In this work, we used stable-isotope analysis of carbon and nitrogen to corroborate available information on habitat use (δ13C) and trophic position (δ15N). Feather samples from the three species were collected in six different areas prior to the 2011 and 2012 breeding seasons. Results showed differences in foraging strategies between Galápagos Penguins and the other two species (δ13C and δ15N, P < 0.01). The Flightless Cormorant and Waved Albatross showed similar proportions of δ13C (P = 0.07), but they occupied different trophic levels (δ15N, P < 0.01). 

References


AWKERMAN, J.A., CRUZ, S., PROAÑO, C. ET AL. 2014. Small range and distinct distribution in a satellite breeding colony of the critically endangered Waved Albatross. Journal of Ornithology 155: 367-378. doi:10.1007/s10336-013-1013-9

BANKS, S. 2002. Ambiente Físico. In: DANULAT, E. & EDGAR, G.J. (Eds.) Reserva Marina de Galápagos: Línea Base de la Biodiversidad. Santa Cruz, Islas Galápagos, Ecuador: Fundación Charles Darwin y Parque Nacional Galápagos. 

BEARHOP, S., PHILLIPS, R.A., THOMPSON, D.R., WALDRON, S. & FURNESS, R.W. 2000. Variability in mercury concentrations of great skuas (Catharacta skua): The influence of colony, diet and trophic status inferred from stable isotope signatures. Marine Ecology Progress Series 195: 261-268.

BEARHOP, S., WALDRON, S., VOTIER, S.C. & FURNESS, R.W. 2002. Factors that influence assimilation rates and fractionation of nitrogen and carbon stable isotopes in avian blood and feathers. Physiology and Biochemical Zoology 75: 451-458.

BECKER, B.H., NEWMAN, S.H., INGLIS, S. & BEISSINGER, S.R. 2007. Diet-feather stable isotope (δ15N and δ13C) fractionation in Common Murres and other seabirds. The Condor 109: 451-456.

BOECKLEN, W.J., YARNES, C.T., COOK, B.A. & JAMES, A.C. 2011. On the use of stable isotopes in trophic ecology. Annual Review of Ecology, Evolution, and Systematics 42: 411-440.

BOERSMA, P.D. 1976. An ecological and behavioral study of the Galápagos penguin. Living Bird 15: 43-93.

BOERSMA, P.D., STEINFURTH, A., MERLEN, G., JIMÉNEZ-UZCÁTEGUI, G., VARGAS, F.H. & PARKER, P.G. 2013. Galápagos Penguin (Spheniscus mendiculus). In: GARCIA BORBOROGLU, P. & BOERSMA, P.D. (Eds.) Penguins: Natural History and Conservation. Seattle, WA: University of Washington Press.

BURGER, J. 1993. Metals in avian feathers: Bioindicators of environmental pollution. Reviews in Environmental Toxicology 5: 203-311.

CHEREL, Y., BOCHER, P., TROUVE, C. & WEIMERSKIRCH H. 2002. Diet and feeding ecology of blue petrels Halobaena caerulea at Iles Kerguelen, Southern Indian Ocean. Marine Ecology Progress Series 228: 283-299.

CHEREL, Y., HOBSON, K.A. & WEIMERSKIRCH, H. 2000. Using stable-isotope analysis of feathers to distinguish moulting and breeding origins of seabirds. Oecologia 122: 155-162.

CHEREL, Y., LE CORRE, M., JAQUEMET, S., MÉNARD, F., RICHARD, P. & WEIMERSKIRCH, H. 2008. Resource partitioning within a tropical seabird community: New information from stable isotopes. Marine Ecology Progress Series 366: 281-291.

DELAZAR, A., NAHAR, L., HAMEDEYAZDAN, S. & SARKER S.D. 2012. Microwave-Assisted Extraction in Natural Products Isolation. In: SARKER S.D. & NAHAR, L. (Eds.) Natural Products Isolation, Third Edition. Vol 864 of the Methods in Molecular Biology series. New York City, USA: Humana Press. doi:10.1007/978-1-61779-624-1

DENIRO, M.J. & EPSTEIN, S. 1978. Influence of the diet on the distribution of carbon isotopes in animals. Geochimica et Cosmochimica Acta 42: 495-506.

DENIRO, M.J. & EPSTEIN, S. 1981. Influence of diet on the distribution of nitrogen isotopes in animals. Geochimica et Cosmochimica Acta 45: 341-351.

EDGAR, G.J., BANKS, S., FARIÑA, J.M., CALVOPIÑA, M. & MARTÍNEZ, C. 2004. Regional biogeography of shallow reef fish and macro-invertebrate communities in the Galápagos archipelago. Journal of Biogeography 31: 1107-1124. doi:10.1111/j.1365-2699.2004.01055.x

FARRELL, J.W., PEDERSEN, T.F., CALVERT, S.E. & NIELSEN, B. 1995. Glacial-interglacial changes in nutrient utilization in the equatorial Pacific Ocean. Nature 377: 514-517. doi:10.1038/377514a0

FERNÁNDEZ, P., ANDERSON, D.A., SIEVERT, P.R. & HUYVAERT, K.P. 2001. Foraging destinations of three low-latitude albatross (Phoebastria) species. Journal of Zoology 254: 391-404. doi:10.1017/S0952836901000899

FRANCE, R.L. 1995. Carbon-13 enrichment in benthic compared to planktonic algae: Foodweb implications. Marine Ecology Progress Series 124: 307-312.

GOERICKE, R. & FRY, B. 1994. Variations of marine plankton δ13C with latitude, temperature, and dissolved CO2 in the world ocean. Global Biogeochemical Cycles 8: 85-90.

HARRIS, M.P. 1973a. The biology of Waved Albatross Diomedea irrorata of Hood Island, Galápagos. Ibis 115: 483-510.

HARRIS, M.P. 1973b. The Galápagos avifauna. The Condor 75: 265-278.

HOBSON, K.A. & CLARK, R.G. 1992. Assessing avian diets using stable isotopes I: Turnover of 13C in tissues. The Condor 94: 181-188.

HOBSON, K.A. & WELCH, H.E. 1992. Determination of trophic relationships within a high Artic marine food web using δ13C and δ15N analysis. Marine Ecology Press Series 84: 9-18.

JAEGER, A., BLANCHARD, P., RICHARD, P. & CHEREL, Y. 2009. Using carbon and nitrogen isotopic values of body feathers to infer inter- and intra-individual variations of seabird feeding ecology during moult. Marine Biology 156: 1233-1240.

KIM, S.L., MARTÍNEZ DEL RÍO, C., CASPER, D. & KOCH, P.L. 2012. Isotopic incorporation rates for shark tissues from a long-term captive feeding study. Journal of Experimental Biology 215: 2495-2500. doi:10.1242/jeb.070656

LEE-CRUZ, L., MCGILL, R.A., GOODMAN, S.J. & HAMER, K.C. 2012. Stable isotope ratios of a tropical marine predator: Confounding effects of nutritional status during growth. Marine Biology 159: 873-880.

MACKO, S.A. & ESTEP, M.L.F. 1984. Microbial alteration of stable nitrogen and carbon isotopic compositions of organic matter. Organic Geochemistry 6: 787-790.

MARTÍNEZ DEL RÍO, C., WOLF, N., CARLETON, S.A. & GANNES, L.Z. 2008. Isotopic ecology ten years after a call for more laboratory experiments. Biological Reviews 84: 91-111.

MCCONNAUGHEY, T. & MCROY, C.P. 1979. Food-web structure and the fractionation of carbon isotopes in the Bering Sea. Marine Biology 53: 257-262.

MASLIN, M.A. & SWANN, G.E.A. 2006. Isotopes in marine sediments. In: LENG, M.J. (Ed.) Isotopes in Palaeoenvironmental Research. Dordrecht, Netherlands: Springer. 

NEWSOME, S.D., MARTÍNEZ DEL RÍO, C., BEARHOP, S. & PHILLIPS, D.L. 2007. A niche for isotopic ecology. Frontiers in Ecology and the Environment 5: 429-436.

NIMS, B.D., VARGAS, F.H., MERKEL, J. & PARKER, P.G. 2008. Low genetic diversity and lack of population structure in the endangered Galápagos penguin (Spheniscus mendiculus). Conservation Genetics 9: 1413-1420.

NORRIS, D.R., ARCESE, P., PREIKSHOT, D., BERTRAM, D.F. & KYSER, T.K. 2007. Diet reconstruction and historic population dynamics in a threatened seabird. Journal of Applied Ecology 44: 875-884.

POST, D.M. 2002. Using stable isotopes to estimate trophic position: Models, methods, and assumptions. Ecology 83: 703-718. doi:10.1890/0012-9658(2002)083[0703:USITET]2.0.CO;2 

POST, D.M., LAYMAN, C.A., ARRINGTON, D.A., TAKIMOTO, G., QUATTROCHI, J. & MONTAÑA, C.G. 2007. Getting to the fat of the matter: Models, methods and assumptions for dealing with lipids in stable isotope analyses. Oecologia 152: 179-189.

QUILLFELDT, P., MCGILL, R.A.R. & FURNESS, R.W. 2005. Diet and foraging areas of Southern Ocean seabirds and their prey inferred from stable isotopes: Review and case study of Wilson's storm-petrel. Marine Ecology Progress Series 295: 295-304.

RUÍZ, D.J. & WOLFF, M. 2011. The Bolivar Channel Ecosystem of the Galapagos Marine Reserve: Energy flow structure and role of keystone groups. Journal of Sea Research 66: 123-134.

SCHAEFFER, B.A., MORRISON, J.M., KAMYKOWSKI, D. ET AL. 2008. Phytoplankton biomass distribution and identification of productive habitats within the Galapagos Marine Reserve by MODIS, a surface acquisition system, and in-situ measurements. Remote Sensing of Environment 112: 3044-3054.

SNOW, B.K. 1966. Observations on the behaviour and ecology of the Flightless Cormorant Nannopterum harrisi. Ibis 108: 265-280. doi:10.1111/j.1474-919X.1966.tb07270.x

STEINFURTH, A., VARGAS, F.H., WILSON, R.P., SPINDLER, M. & MACDONALD, D.W. 2008. Space use by foraging Galápagos penguins during chick rearing. Endangered Species Research 4: 105-112. doi:10.3354/esr00046 

VALLE, C.A. 1994. The ecology and evolution of sequential polyandry in Galápagos Cormorants (Compsohalieus [nannopterum] harrisi). PhD dissertation. Princeton, NJ: Princeton University.

VARGAS, F.H. 2006. The ecology of small populations of birds in a changing climate. PhD dissertation. Oxford, UK: University of Oxford.

VARGAS, F.H., HARRISON, S., REA, S. & MACDONALD, D.W. 2006. Biological effects of El Niño on the Galápagos penguin. Biological Conservation 127: 107-114.

WEIMERSKIRCH, H., CHASTEL, O. & ACKERMANN, L. 1995. Adjustment of parental effort to manipulated foraging ability in a pelagic seabird, the thin-billed prion Pachyptila belcheri. Behavioral Ecology and Sociobiology 36: 11-16.

WIEDENFELD, D.A. & JIMÉNEZ-UZCÁTEGUI, G.A. 2008. Critical problems for bird conservation in the Galápagos Islands. Cotinga 29: 22-27.

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