*Student/Postdoc Author

*Barrios-Guzman, C., Harrod, C., Guerrero, A., Muñoz, L., Pavez, G., Quiñones, R., Reyes, H., Santos-Carvallo, M., Zarate, P.M., Newsome, S.D., Sepulveda, M. (Submitted) Bottom-up processes drive isotopic variation in the South American sea lion (Otaria flavescens) across a 2300km latitudinal gradient. Marine Environmental Research.

Besser, A.C., *Robinson, A.L., Turner, T.F., Takacs-Vesbach, C.D., Newsome, S.D. (Submitted) Differential utilization of submerged leaf litter by microbial biofilms and macroinvertebrates in the middle Rio Grande, New Mexico. Limnology and Oceanography.

*Busquets-Vass, G., Carroll, E.L., *Lübcker, N., Constantine, R., Childerhouse, S., Baker, S., Dunshea G., Hindell, M., Cranswick, A., Lundquist, D., Newsome, S.D. (In Review) Assessing nutrient allocation strategies in a capital breeding baleen whale: a novel tool to infer reproductive shifts in nitrogen balance. Proceedings of the Royal Society Series B.

*Elliott Smith, E.A., Moss, M.L., Wellman, H.P., Gill, V., Newsome, S.D. (In Revision) Historical ecology of sea otters in southeastern Alaska and northern Oregon: implications of and for recolonization. Proceedings of the Royal Society Series B.

Galvan, D.E., Funes, M., Paparazzo, F., Alonso Roldan, V., Derisio, C., Temperoni, B., Newsome, S.D. (In Review) A strong link between nutrient dynamics and zooplankton d13C and d15N values in San Jorge Gulf, Argentina. Continental Shelf Research.

Maldonado, K., Weinberger, C., *Ricote, N., Manlick, P.J., Newsome, S.D. (Submitted) Individual diet specialization and resource heterogeneity maintain biodiversity in a stochastic desert environment. Nature Ecology and Evolution.

McClain, C.R., Hanks, G., *Manlick, P.J., Bryant, S.R., Hiley, A., Nunnally, C., Romano, C., Rouse, G.W., *Whiteman, J.P., Newsome, S.D. (In Revision) Niche diversity and non-random assembly connect diversity and ecosystem function on the bottom of the ocean. The American Naturalist.

*Mertz, C., *Mancuso, C., *Robinson, D., *James, L., Fogel, M., Takacs-Vesbach, T., Newsome, S.D. (Submitted) Dynamic interplay between gut microbiome and host protein metabolism: impact of diet on host assimilation of microbially derived essential amino acids. Microbiome.

*Ricote, N., Weinberger, C., *Ramirez-Otarola, N., Bustamante, S., Malaga, M.L., Barcelo, G., Sabat, P., Newsome, S.D., Maldonado, K. (In Review) The interplay of ecological opportunity and adult foraging strategies in juvenile sparrow individual specialization. Journal of Avian Biology.

*Wright, D.L., *Busquets-Vass, G., Read, A., Newsome, S.D. (In Review) Habiat use and trophic ecology of the world's rarest whale population, the eastern North Pacific right whale, on a rapidly warming subarctic foraging ground. Marine Ecology Progress Series.

*Wright, D.L., *Busquets-Vass, G., Read, A., Newsome, S.D. (Submitted) Commercial whaling era baleen reveals two overwintering grounds of the critically endangered North Pacific right whale. Proceedings of the National Academy of Sciences.

*Brown, B.R., Malingati, L., Lokeny, P., Jakopak, R.P., Reed, C.G., Dyck, M., Wambua, A., Newsome, S.D., Palmer, T.M., Pringle, R.M., Goheen, J.R., Kartzinel, T.R. (2024) Spatiotemporal variation in the gut microbiomes of co-occurring wild rodent species. Ecosphere.

Brown-Nash, A., Newsome, S.D., McMahon, K.W. (In Press) On precision and accuracy: a review of the state of compound-specific isotope analysis of amino acids. Organic Geochemistry.

MacPherson, J., *Shipley, O.N., Weinrauch, A., Newsome, S.D., Anderson, G. (Accepted, Pending Revision) Absence of a functional gut microbiome impairs host amino acid metabolism in the Pacific spiny dogfish (Squalus suckleyi). Journal of Experimental Biology.

*Manlick, P.J., *Perryman, N.L., Koltz, A.M., Cook, J.A., Newsome, S.D. (2024) Climate warming restructures food webs and carbon flow in high-latitude ecosystems. Nature Climate Change

*Robinson, A.L., Elliott Smith, E.A., *Besser, A.C., Newsome, S.D. (2024) Tissue-specific amino acid carbon isotope discrimination in the southern sea otter. Oecologia.

Shipley, O.N., Dabrowski, A., Bowen, G.J., Hayden, B., Pauli, J., Jordan, C., Anderson L., Bailey, A., Bataille, C.P., Cicero, C., Close, H.G., Cook, C., Cook, J.A., Desai, A.R., Evaristo, J., Filley, T.R., France, C.A.M., Kim, S.L., Kopf, S., Loisel J., Manlick, P.J., McFarlin, J.M., McMeans, B.C., O'Connell T.C., Semmens, B.X., Stantis, C., Szejner, P., Pilaar Birch, S.E., Putman, A.L., Stricker, C.A., Trammell, T.L.E., Uhen, M.D., Weintraub-Leff, S., Wooller, M.J., Williams, J.W., Yarnes, C.T., Vander Zanden, H.B., Newsome, S.D. (In Press) Design, development, and implementation of IsoBank: a centralized repository for isotopic data. PLoSOne.

Shipley, O.N., Newsome, S.D., Long, T., Murasko, S., Seminoff, J., Ceriani, S. (In Press) Carbon and nitrogen isotopes of lizardfish provide insight into regional patterns of ocean biogeochemistry across the eastern continental United States. Marine Biology.

*Besser, A.C., Manlick, P.J., *Blevins, C.M., Takacs-Vesbach, C.D., Newsome, S.D. (2023) Amino acid isotope analysis reveals variation in the gut microbial contribution to host protein metabolism in a wild small mammal community. Ecology Letters. Besser et al. 2023.pdf

*Brown, B.R., Goheen, J.R., Newsome, S.D., Pringle, R.M., Palmer, T.M., Malingati, L. Kartzinel, T.R. (2023) Host phylogeny and functional traits differentiate gut microbiomes in a diverse natural community of small mammals. Molecular Ecology. Brown et al. 2023.pdf

Derville, S., Torres, L.G., Newsome, S.D., Somes, C.J., Valenzuela, L.O., Vander Zanden, H.B., Baker, C.S., Bérubé, M., Busquets-Vass, G., Carlyon, K., Childerhouse, S.J., Constantine, R., Dunshea, G., Flores, P.A.C., Goldsworthy, S.D., Graham, B., Groch, K., Gröcke, D.R., Harcourt, R., Hindell, M.A., Hulva, P., Jackson, J.A., Kennedy, A.S., Lundquist, D., Mackay, A.I., Neveceralova, P., Oliviera, L., Ott, P.H., Palsbøll, P.J., Patenaude, N., Rowntree, V., Sironi, M., Vermeuelen, E., Watson, M., Zerbini, A.N., Carroll, E.L. (2023) Long-term stability in the circumpolar foraging range of a Southern Ocean predator between the eras of whaling and rapid climate change. Proceedings of the National Academy of Sciences. Derville et al. 2023.pdf

Elliott Smith, E.A., Braje, T.J., Gobalet, K.W., Campbell, B. Newsome, S.D., Rick, T.C. (2023) Archaeological and stable isotope data reveal patterns of fishing across the food web on California's Channel Islands. The Holocene. Elliott Smith et al. 2023.pdf

Hobson, K.A., Whiteman, J.P., Newsome, S.D. (2023) Editorial: New frontiers in the application of stable isotopes to ecological and ecophysiological research. Frontiers in Ecology and Evolution. Hobson et al. 2023.pdf

Lubcker, N., Whiteman, J.P., Shipley, O.N., Hobson, K.A., Newsome, S.D. (2023) Use of amino acid isotope analysis to investigate capital versus income breeding strategies by three species of Arctic-breeding migratory geese. Methods in Ecology and Evolution. Lubcker et al. 2023.pdf

Manlick, P.J., Cook, J.A., Newsome, S.D. (2023) The coupling of green and brown food webs regulates trophic position in a montane mammal guild. Ecology. Manlick et al. 2023.pdf

*Navarrete, L., Lübcker, N., Alvarez, F., Nespolo, R., Sanchez-Hernandez, J.C., Maldonado, K., Sharp, Z.D., Whiteman, J.P., Newsome, S.D., Sabat P. (2023) A multi-isotope approach reveals seasonal variation in the reliance on marine resources, production of metabolic water, and ingestion of seawater by two species of coastal passerine to maintain water balance. Frontiers in Ecology and Evolution. Navarrete et al. 2023.pdf

Pereira, A.C., Mancuso, C.J., Newsome, S.D., Nardoto, G.B., Colli, G.R. (2023) Agricultural input modifies the trophic niche and basal energy sources supporting a top predator across human-modified landscapes. Frontiers in Ecology and Evolution. Pereira et al. 2023.pdf

*Ramirez-Otarola, N., Maldonado, K., Valdes, F., Newsome, S.D., Sabat, P. (2023) Seasonal changes in diet, immune function, and oxidative status in three passerines inhabiting a Mediterranean climate. Oecologia. Ramirez-Otarola et al. 2023.pdf

Rudgers, J., Luketich, A. Bacigalupa, M., Baur, L.E.; Collins, S., Hall, K., Hou, E., Litvak, M., Luo, Y., Miller, T., Newsome, S.D., Pockman, W., Richardson, A., Rinehart, A., Villatoro-Castañeda, M., Wainwright, B., Watson, S., Yogi, P., Zhou, Y. (2023) Infrastructure to factorially manipulate the mean and variance of precipitation in the field. Ecosphere. Rudgers et al. 2023.pdf

Sekercioglu, C.H., Fullwood, M.J., Cerling T., Oviedo, F., Daily, G.C., Ehrlich, P.L., Chamberlain, C.P., Newsome, S.D. (2023) Using stable isotopes to measure the responses of Costa Rican forest birds to agricultural countryside. Frontiers in Ecology and Evolution. Sekercioglu et al. 2023.pdf

Shipley, O.N., McMeans, B.C., *Besser, A.C., *Bloomfield, E., Newsome, S.D. (2023) Energy channeling and food-chain length impacts body condition in a northern lake predator. Freshwater Biology. Shipley et al. 2023.pdf

*Teixeira, C.R., Botta, S., Cremer, M.J., Marcondes, M.C., Pereira, L.B., Newsome, S.D., Daura Jorge, F.G., Simoes-Lopes, P.C. (2023) Ecologically driven differences in individual diet specialization across three populations of Guiana dolphins. Oecologia. Teixeira et al. 2023.pdf

Turner, T.F., Bart, H.L., McCormick, F.H., *Besser, A.C., Bowes, R.E., Capps, K.A., Dearmon, E.S., Dillman, C.B., Driscoll, K.P., Dugger, A., Hamilton, G.L., Harris, P.M., Hendrickson, D.A., Hoffman, J., Knouft, J.H., Lepak, R.F., Lopez-Fernandez, H., Montaña, C.G., Newsome, S.D., Pease, A.A., Smith, W.L., Taylor, C.A., Welicky, R.L. (2023) Long-term ecological research in freshwaters enabled by regional biodiversity collections, stable isotope analysis, and environmental informatics. BioScience. Turner et al. 2023.pdf

*Besser, A.C., Elliott Smith E.A., Newsome, S.D. (2022) Assessing the potential of amino acid δ13C and δ15N analysis in terrestrial and freshwater ecosystem studies. Journal of Ecology. Besser et al. 2022.pdf

*Blevins, C., Busquets-Vass, G., Pardo, M.A., Gendron, D., Jacobsen, J.K., Gómez-Díaz, F., Pérez-Puig H., Ortega-Ortiz, C.D., Heckel, G., Urbán Ramírez, J., Viloria-Gómora, L., Newsome, S.D. (2022) Sex- and age-specific migratory strategies of blue whales in the northeast Pacific Ocean. Frontiers in Marine Science. Blevins et al. 2022.pdf

*Coletto, J.L., *Besser, A.C., Botta, S., Madureira, L.S.P., Newsome, S.D. (2022) Multi-proxy approach for studying a migratory marine consumer's foraging habitat and trophic position in the southwestern Atlantic Ocean. Marine Ecology Progress Series. Coletto et al. 2022.pdf

*Elliott Smith, E.A., Fox, M.D., Fogel, M.L., Newsome, S.D. (2022) Amino acid δ13C fingerprints of nearshore marine autotrophs are consistent across broad spatiotemporal scales: an intercontinental isotopic library and likely biochemical drivers. Functional Ecology. Elliott Smith et al. 2022.pdf

Gehrt, S.D., Muntz E.M., *Wilson, E.C., Power, J.W.B, Newsome, S.D. (2022) Severe environmental conditions create severe conflicts? A novel ecological pathway to extreme coyote attacks on humans. Journal of Applied Ecology. Gehrt et al. 2022.pdf

Mancuso, C.J., Ehleringer, J.R., Newsome, S.D. (2023) Amino acid hydrogen isotope analysis of human hair as a tool to refine studies of region of origin. Rapid Communications in Mass Spectrometry. Mancuso et al. 2022.pdf

Manlick, P.J., Newsome, S.D. (2022) Stable isotope fingerprinting accurately traces essential amino acid assimilation and multi-channel feeding in a vertebrate consumer. Methods in Ecology and Evolution. Manlick et al. 2022.pdf

Shipley, O.N., Olin, J.A., Whiteman, J.P., Bethea, D., Newsome, S.D. (2022a) Physiological controls on nitrogen isotope dynamics: new insight from individual amino acids in elasmobranchs. Oecologia. Shipley et al. 2022a.pdf

Shipley, O.N., Manlick, P.J., Newton, A., Matich, P., Camhi, M., Cerrato, R.M., Frisk, M.G., Henkes, G.A., LaBelle, J., Nye, J.A., Walters, H., Newsome, S.D., Olin J.A. (2022b) Nutritional consequences of intraspecific diet variation in a marine carnivore. Oecologia. Shipley et al. 2022b.pdf

Smith, F.A., *Elliott Smith, E.A., Villaseñor, A., Tome, C.P., Lyons, S.K., Newsome, S.D. (2022) The missing pieces: changes in the ecological niche of a mammal community in North America over the late Quaternary. Proceedings of the National Academy of Sciences. Smith et al. 2022.pdf

*Tome, C.P., Lyons S.K., Stafford, T.W., Newsome, S.D., Smith, F.A. (2022) The sensitivity of Neotoma to climate change and biodiversity loss over the late Quaternary. Quaternary Research. Tome et al. 2021.pdf

Busquets-Vass, G., Newsome, S.D., Pardo, M., Calambokidis, J., Serra-Valente, G., Jacobsen, J.K., Aguiniga-Garcia, S., Paez-Rosas, D., Gomez-Gutierrez, J., Gendron, D. (2021) Isotope-based inferences of seasonal foraging and migratory strategies of blue whales in the eastern Pacific Ocean. Marine Environmental Research. Busquets-Vass et al. 2021.pdf

Carroll, E.L., Dunshea, G., Ott, P., Valenzuela, L.O., Baker, C.S., Childerhouse, S., Gaggiotti, O.E., Groch, K., Grocke, D., Hindell, M., Lundquist, D., Oliviera, L., Newsome, S.D. (2021) Variation in isotope values between mothers and calves across southern right whale breeding grounds: influence of nutritional stress? Marine Mammal Science. Carroll et al. 2021.pdf

*Coletto, J., Botta, S., Fischer, L., Newsome, S.D., Madureira, L. (2021) Isotope-based inferences of skipjack tuna feeding ecology in the southwestern Atlantic Ocean. Marine Environmental Research. Coletto et al. 2021.pdf

*Lubcker, N., Newsome, S.D., Bester, M.N., de Bruyn, P.J.N. (2021) Validating the use of bulk tissue and amino acid isotope values of molted hair and epidermis of elephant seals to assess foraging niche specialization. Marine Ecology Progress Series. Lubcker et al. 2021.pdf

Manlick, P.H., Newsome, S.D. (2021) Can individual specialization compensate for biotic homogenization? Frontiers in Ecology and the Environment. Manlick and Newsome 2021.pdf

Manlick, P.J., Maldonado, K., Newsome, S.D. (2021) Competition drives individual diet specialization and reduced survival in a desert rodent ensemble. Journal of Animal Ecology. Manlick et al. 2021.pdf

Morra, K.E., Newsome, S.D., Graves, G.R., Fogel, M.L. (2021) Variation in amino acid isotope values in butterfly tissues at a single geographical site: implications for using δ2H as a tracer of animal movement. Frontiers in Ecology and Evolution. Morra et al. 2021.pdf

Navarrete, L., Bozinovic, F., Pena-Villalobos, I., Contreras Ramos, C., Sanchez-Fernandez, J.C., Newsome, S.D., Nespolo, R.F., Sabat, P. (In Press) The effects of acute dehydration on energy metabolism, metabolic enzymes, and oxidative traits in the rufous-collared sparrow. Frontiers in Ecology and Evolution. Navarrete et al. 2021.pdf

*Pages Barcelo, L., Seminoff, J.A., Vander Zanden, H.B., Jones, T.D., Bjorndal, K.A., Bolten, A.B., Mustin, W., Newsome, S.D. (2021) Hydrogen isotope assimilation and discrimination in green turtles. Journal of Experimental Biology. Pages Barcelo et al. 2021.pdf

Ramirez, M.D., *Besser, A.C., Newsome, S.D., McMahon, K.W. (2021) Meta-analysis of primary producer amino acid δ15N values and their influence on trophic position estimation. Methods in Ecology and Evolution. Ramirez et al. 2021.pdf

Sabat, P., Newsome, S.D., Pinochet, S., Nespolo, R., Sanchez Hernandez, J.C., Maldonado, K., Gerson, A., Sharp, Z.D., Whiteman, J.P. (2021) Cold acclimation increases the metabolic water contribution to the body water pool in captive Zonotrichia capensis: implications for studying water balance in wild passerines. Frontiers in Physiology. Sabat et al. 2021.pdf

*Teixeira, C.R., Botta, S., Daura Jorge, F.G., Becker Pereira, L., Newsome, S.D., Simoes Lopes, P.C. (2021) Niche overlap and diet composition of three sympatric coastal dolphin species in the southwest Atlantic Ocean. Marine Mammal Science. Teixeira et al. 2021.pdf

*Wedemeyer-Strombel, K.R., Seminoff, J.A., Liles, M.J., Neftali Sanchez, R., Chavarria, S., Valle, M., Altamirano, E., Gadea, V., Peterson, M.J., Peterson, T.R., Smith, K.J., Trueman, C.N., Newsome, S.D. (2021) Local ecological knowledge and stable isotope analysis confirm that mangrove estuaries are key developmental habitats for critically endangered hawksbill turtles. Frontiers in Conservation Science. Wedemeyer-Strombel et al. 2021.pdf

Whiteman, J.P., Newsome, S.D., Bustamante, P., Cherel, Y., Hobson, K.A. (2021) Toward a quantitative measure of capital versus income breeding: new promise with stable isotope measurements of individual amino acids. Journal of Animal Ecology. Whiteman et al. 2021a.pdf

Whiteman, J.P., *Rodriguez Curras, M., *Feeser, K.L., Newsome, S.D. (2021) Dietary protein content and digestibility influences discrimination of amino acid nitrogen isotope values in a terrestrial omnivorous mammal. Rapid Communications in Mass Spectrometry. Whiteman et al. 2021b.pdf

Zinnert, J.C., Nippert, J.B., Rudgers, J.A., Pennings, S.C., González, G., Alber, M., Baer, S.G., Blair, J.M., Burd, A., Collins, S.L., Craft, C., Di Lorio, D., Dodds, W.K., Groffman, P.M., Herbert, E., Hladik, C., Li, F., Litvak, M., Newsome, S.D., O’Donnell, J., Pockman, W.T., Schalles, J., Young, D.R. (2021) State changes: insights from the US Longer Term Ecological Research Network. Ecosphere 12: e03433. Zinnert et al. 2021.pdf

*Student Author

Newsome, S.D., *Hughes, K.L., Bradley, C.J., *Wolf, C., Vesbach-Takacs, C., Fogel, M.L. (2020) Isotopic and genetic methods reveal the role of the gut microbiome in mammalian host essential amino acid metabolism. Proceedings of the Royal Society Series B. Newsome et al. 2020a.pdf

Newsome, S.D., *Nakamoto, B., *Rodriguez Curras, M., Fogel, M.L. (2020) Compound-specific δ2H analysis highlights the relationship between direct assimilation and de novo synthesis of amino acids from food and water in a mammalian omnivore. Oecologia. Newsome et al. 2020b.pdf

Barton, L., Eerkens, J.W., Talcott, S.D., Kennedy, M., Newsome, S.D. (2020) Stable isotopic evidence of a terrestrially-based diet for humans in the Late Holocene of Central California. UC Davis Center for Archaeological Research Archives. Barton et al. 2020.pdf

*Duclos, M., Sabat, P., Newsome, S.D., Galban, C., Pavez, E.F., Jaksic, F.R., Quirici, V. (2020) Latitudinal patterns in the diet of the Andean condor (Vultur gryphus) in Chile: contrasting environments influence foraging behavior. Science of the Total Environment. Duclos et al. 2020.pdf

*Dombrosky, J., *Besser, A.C., *Elliott Smith, E.A., *Pages Barcelo, L., *Conrad, C., Newsome, S.D. (2020) Resource risk and stability in the zooarchaeological record: the case of Pueblo fishing in the Middle Rio Grande, New Mexico. Archaeological and Anthropological Sciences. Dombrosky et al. 2020.pdf

*Elliott Smith, E.A., Tinker, M.T., *Whistler, E.L., Kennett D.J., Vellanoweth, R.L., Gifford-Gonzalez, D., Hylkema, M.G., Newsome, S.D. (2020) Reductions in the dietary niche of the southern sea otter (Enhydra lutris nereis) from the Holocene to the Anthropocene. Ecology and Evolution. Elliott Smith et al. 2020a.pdf

*Elliott Smith, E.A., Harrod, C., Docmac, F., Newsome, S.D. (2020) Intraspecific variation and energy channel coupling within a Chilean kelp forest. Ecology. Elliott Smith et al. 2020b.pdf

*Lubcker, N., Whiteman, J.P., Millar, R., de Bruyn N., Newsome, S.D. (2020) Fasting affects amino acid nitrogen isotope values in southern elephant seals: a new tool for identifying nitrogen balance in free-ranging animals. Oecologia. Lubcker et al. 2020a.pdf

*Lubcker, N., Whiteman, J.P., Newsome, S.D., Millar, R.P., de Bruyn, P.J.N. (2020) Can the isotopic composition of offspring be used as a proxy for their mother's diet? Insights into fetal amino acid metabolism from amino acid δ15N analysis. Conservation Physiology. Lubcker et al. 2020b.pdf

*Phillips, N.D., *Elliott Smith E.A., Newsome, S.D., Houghton, J.D.R., Carson, C., Alfaro Shigueto, J., Mangel, J., Eagling, L.E., Harrod, C. (2020) Bulk tissue and amino acid stable isotope analysis reveal global ontogenetic patterns in ocean sunfish diet and habitat use. Marine Ecology Progress Series. Phillips et al. 2020.pdf

Yeakel, J.D., Bhat, U., Newsome, S.D. (2020) Caching in or falling back at the Sevilleta: the effects of body size and seasonal uncertainty on desert rodent foraging. American Naturalist. Yeakel et al. 2020.pdf

*Student Author

Aurioles-Gamboa, D., Newsome, S.D., Hassrick, J., Acosta-Pachon, T., Aurioles-Rodriguez, F., Costa, D.P. (2019) Vibrissa growth rates in free ranging northern elephant seal females (Mirounga angustirostris). Marine Ecology Progress Series. Aurioles et al. 2019.pdf

*Carter, W., Whiteman, J.P., Cooper-Mullin C., Newsome, S.D., McWilliams, S. (2019) The dynamics of zebra finch flight muscle lipids revealed by fatty acid turnover. Physiological and Biochemical Zoology. Carter et al. 2019.pdf

*Fox, M.D., *Elliott Smith, E.A., Smith, J.E., Newsome, S.D. (2019) Trophic plasticity in a common reef-building coral: insights from δ13C analysis of essential amino acids. Functional Ecology. Fox et al. 2019.pdf

Maldonado, K., Newsome, S.D., Razeto-Barry, P., Manuel Rios, J., Piriz, G., Sabat, P. (2019) Individual diet specialization is driven by phenotypic plasticity in digestive enzymes and trade-offs in animal performance. Ecology Letters. Maldonado et al. 2019.pdf

*Noble, J.D., Collins, S.L., *Hallmark, A.J., Maldonado, K., Wolf, B.O., Newsome, S.D. (2019) Foraging strategies of individual silky pocket mice over a boom-bust population cycle in a highly stochastic arid ecosystem. Oecologia. Noble et al. 2019.pdf

Sabat, P., Bozinovic, F., Contreras-Ramos, C., Nespolo, R., Newsome, S.D., Quirici, V., Maldonado, K., Ramirez-Otarola, N., Sanchez-Hernandez, J.C. (2019) The interplay between ambient temperature and salt intake affects oxidative status and immune responses in a ubiquitous Neotropical passerine, the rufous-collared sparrow. Comparative Biochemistry and Physiology A. Sabat et al. 2019.pdf

Tinker, M.T., Tomoleoni, J.A., Wietzman, B.P., Staedler, M., Jessup, D., Murray, M.J., Miller, M., Burgess, T., Bowen, L., Miles, A.K., Thometz, N., Tarjan, L., Golson, E., Batac, F., Dodd, E., Berberich, E., Kunz, J., Bentall, G., Fujii, J., Nicholson, T., Newsome, S.D., Melli, A., LaRoche N., MacCormick H, Johnson, A., Henkel, L., Kreuder-Johnson, C., Conrad, P. (2019) Southern sea otter (Enhydra lutris nereis) population biology at Big Sur and Monterey, California: Investigating the consequences of resource abundance and anthropogenic stressors for sea otter recovery. USGS Open-File Report 2019-1022. Tinker et al. 2019.pdf

*Tome, C.P., *Elliott Smith, E.A., Lyons, S.K., Stafford, T.W., Newsome, S.D., Smith, F.A. (2019) The response of a small herbivorous mammal (Sigmodon hispidus) to the late Pleistocene megafauna extinction. Ecography. Tome et al. 2019.pdf

*Vokhshoori, N., McCarthy, M.D., Collins, P.W., Etnier, M.A., Rick, T.C., Eda, M., Beck, J., Newsome, S.D. (2019) Broader foraging range of ancient short-tailed albatross populations into California coastal waters based on bulk tissue and amino acid isotope analysis. Marine Ecology Progress Series. Vokhshoori et al. 2019.pdf

Whiteman, J.P., *Elliott Smith E.A., *Besser, A.C., Newsome, S.D. (2019) A guide to using compound-specific stable isotope analysis to study molecules, organisms, and ecosystems. Diversity. Whiteman et al. 2019a.pdf

Whiteman, J,P., Sharp, Z.D., Gerson, A.R., Newsome, S.D. (2019) Relating D17O values of animal body water to exogenous water inputs and metabolism. BioScience. Whiteman et al. 2019b.pdf

*Student Author

Newsome, S.D., Berman Kowalewski, M., Chivers, S. (2018) The influence of lipid-extraction and long-term dimethyl sulfoxide (DMSO) preservation on carbon and nitrogen isotope values in cetacean skin. Marine Mammal Science. Newsome et al. 2018.pdf

*Elliott Smith, E.A., Harrod, C., Newsome, S.D. (2018) Untangling the importance of kelp carbon to an intertidal ecosystem using amino acid δ13C analysis. Ecosphere. Elliott Smith et al. 2018.pdf

*Gadek, C.R., Newsome, S.D., *Beckman, E.J., *Chavez, E.N., Galen, S.C., Witt, C.C. (2018) Why are tropical mountain passes “low” for some species? Genetic and stable isotope tests for differentiation, migration, and expansion in elevational generalist songbirds. Journal of Animal Ecology. Gadek et al. 2018.pdf

Graves, G.R., Newsome, S.D., Fogel, M.L. (2018) Stable hydrogen isotope variability within and among plumage tracts of a migratory wood warbler. PLoSOne. Graves et al. 2018.pdf

*Hixon, S.W., *Elliott Smith E.A., Crowley B., Perry, G., Bankoff, R., Kennett, D., Newsome, S.D. (2018) Patterns in δ15N values for amino acids in lemur bone are inconsistent with aridity driving megafaunal extinction in southwestern Madagascar. Journal of Quaternary Science. Hixon et al. 2018.pdf

Hobson, K.A., Wassenaar, L.I., Bowen, G.J., Courtiol, A., Trueman, C.V., Voight, C.C., West, J.B., McMahon, K.W., Newsome, S.D. (2018) Outlook for using stable isotopes in animal migration studies. Tracking Animal Migration with Stable Isotopes. K.A. Hobson, L.I. Wassenaar, editors. Elsevier. Hobson et al. 2018.pdf

*Hughes, K., Whiteman, J.P., Newsome, S.D. (2018) The relationship between dietary protein content, body condition, and δ15N discrimination in a mammalian omnivore. Oecologia. Hughes et al. 2018.pdf

McMahon, K.W., Newsome, S.D. (2018) Amino acid isotope analysis: the next frontier in studies of animal migration and foraging ecology. In Tracking Animal Migration with Stable Isotopes. K.A. Hobson, L.I. Wassenaar, editors. Elsevier. McMahon and Newsome 2018.pdf

*Poblete, Y., Gutierrez, V., Venegas, C., Cid, V., Newsome, S.D., Sabat, P., Vasquez, R. (2018) Behavioral and morphometric differences among populations: exploration and migration at different altitudes in rufous-collared sparrow. Oecologia. Poblete et al. 2018.pdf

Resasco, J., Tuff, K., Cunningham, S.A., Melbourne, B.A., Hicks, A., Newsome, S.D., Davies, K.F. (2017) Experimental forest fragmentation alters food-web structure and the environment: evidence from a generalist predator’s niche shift. Ecography. Resasco et al. 2018.pdf

*Rodriguez Curras, M., Fogel, M.L., Newsome, S.D. (2018) Assimilation and discrimination of hydrogen isotopes in a terrestrial mammal. Oecologia. Rodriguez Curras et al. 2018.pdf

*Rodriguez Perez, M.Y., Aurioles-Gamboa, D., Sanchez-Velasco, L., Lavin, M.F., Newsome, S.D. (2018) Isoscape of the upper Gulf of California: a tool for identifying critical habitat for the endemic and endangered vaquita (Phocoena sinus). Marine Mammal Science. Rodriguez-Perez et al. 2018.pdf

*Tapia-Monsalve, R., Newsome, S.D., Sanchez-Hernandez J.C., Bozinovic, F. Nespolo, R., Sabat P. (2018) Terrestrial birds in coastal environments: metabolic rate and oxidative status varies with the use of marine resources. Oecologia. Tapia-Monsalve et al. 2018.pdf

Whiteman, J.P., Kim, S.L., McMahon, K.W., Koch, P.L., Newsome, S.D. (2018). Amino acid isotope discrimination factors for a carnivore: physiological insights from leopard sharks and their diet. Oecologia. Whiteman et al. 2018.pdf

*Student Author

Newsome, S.D., Wolf, N., Bradley, C.J., Fogel, M.L. (2017) Assimilation and discrimination of hydrogen in tilapia: implications for studying animal diet with δ2H. Ecosphere. Newsome et al. 2017.pdf

Braje, T.J., Rick, T.C., Szpak, P., Newsome, S.D., McCain, J.M., Elliott Smith, E.A., Glassow, M., Thakar, H. (2017) The past, present, and future of the southern California sheephead (Semicossyphus pulcher) fishery. Science Advances. Braje et al. 2017.pdf

*Busquets-Vass, G., Newsome, S.D., Calambokidis, J., Aguiniga-Garcia, S., Serra-Valente, G., Jacobsen, J., Gendron, D. (2017) Inferring blue whale skin and baleen turnover via stable isotopes: implications for assessing the foraging ecology and movement patterns in mysticetes. PLoSOne. Busquets-Vass et al. 2017.pdf

*O’Brien, S.L., Cook, J.A., Newsome, S.D. (2017) Niche differentiation among small mammals of the Alexander Archipelago of southeast Alaska. Journal of Mammalogy. O'Brien et al. 2017.pdf

Maldonado, K., Bozinoviz, F., Newsome, S.D., Sabat, P. (2017) Assessing the niche variation hypothesis and phylogenetic conservatism on individual specialization in a community of passerine birds. Ecology. Maldonado et al. 2017.pdf

Pauli, J.N., Newsome, S.D., Cook, J.A., Harrod, C., Steffan, S.A., Baker, C.J.O., Ben-David, M., Bloom, D., Bowen, G.J., Cerling, T., Cicero, C., Cook, C., Dohm, M., Dharampal, P.S., Graves, G.R., Gropp, R., Hobson, K.A., Jordan, C., MacFadden, B.J., Pilaar Birch, S., Poelen, J., Ratnasingham, S., Russell, L., Stricker, C.A., Uhen, M.D., Yarnes, C.T., Hayden, B. (2017) Nucleating IsoBank. Proceedings of the National Academy of Sciences USA. Pauli et al. 2017.pdf

Riccialdelli, L., Newsome, S.D., Fogel, M.L., Fernandez, D.A. (2017) Trophic relationships and foraging diversity in a sub-Antarctic food web in the Beagle Channel: Lapatia Bay, Argentina. Marine Biology. Riccialdelli et al. 2017.pdf

*Rader, J., Newsome, S.D., Sabat, P., Chesser, R.T., Dillon, M.E., Martinez del Rio, C. (2017) Isotopic niches support the resource breadth hypothesis. Journal of Animal Ecology. Rader et al. 2017.pdf

Sabat, P, Narvaez, C., Peña-Villalobos, I., Contreras, C., Maldonado, K., Sanchez-Hernandez, J.C., Newsome, S.D., Nespolo, R., Bozinovic, F. (2017) Coping with salt water habitats: metabolic and oxidative responses to salt intake in the rufous-collared sparrow. Frontiers in Physiology. Sabat et al. 2017.pdf

Sepulveda, M., *Pavez, G., Santos, M., Muñoz*, L., Moraga, R., Pequeño, G., Newsome, S.D. (2017) Impacts of salmon introduction on the trophic ecology of the South American sea lion in southern Chile. Marine Mammal Science 33: 480–495. Sepulveda et al. 2017.pdf

Young, C., Miller, M.A., Kuchta R., Brabec J., Newsome, S.D., Dailey, M. (2017) First report of an adult tapeworm (Cestoda: Diphyllobothriidea) in a southern sea otter (Enhydra lutris nereis). Journal of Wildlife Diseases. Young et al. 2017.pdf

Watts, D.E., Newsome, S.D. (2016) Exploitation of marine resources by wolves and its potential consequences for wolf-ungulate interactions in southwest Alaska. Journal of Mammalogy. Watts and Newsome 2017.pdf

*Student Author

*Conrad, C., Jones, E.L., Newsome, S.D., Schwartz D.W. (2016) Eggshell, bone isotopes, and turkey husbandry at Arroyo Hondo Pueblo. Journal of Archaeological Science Reports. Conrad et al. 2016.pdf

Fogel, M.L., *Griffin, P., Newsome, S.D. (2016) Hydrogen isotopes in individual amino acids reflect differentiated pools of hydrogen from food and water in Escherichia coli. Proceedings of the National Academy of Sciences USA. Fogel et al. 2016.pdf

*Hofman, C.A., Rick, T.C., Maldonado, J.E., Collins, P.W., Fleischer R., Smith, C., Sillett, S., Ralls, K., Teeter, W., Vellanoweth, R., Newsome, S.D. (2016) Tracking the diet of an endangered carnivore across 7300 years of human cultural and environmental change. Quaternary Science Reviews 146: 147–160. Hofman et al. 2016.pdf

Jones, E.L., *Conrad, C., Newsome, S.D., Kemp, B.M., Kocer, J.M. (2016) Turkeys on the fringe: variable husbandry in marginal areas of the prehistoric American Southwest. Journal of Archaeological Science Reports. Jones et al. 2016.pdf

Rode, K.D., Stricker, C.A., Erlenbach, J., Robbins, C.T., Cutting, A., Jensen, S. Newsome, S.D., Cherry, S.G., Stenhouse, G., Brooks, M., Hash, A., Nicassio, N. (2016) Isotopic incorporation and the effects of fasting and dietary lipid content on isotopic discrimination in large, carnivorous mammals. Physiological and Biochemical Zoology. Rode et al. 2016.pdf

Smith, F.A., *Tome, C.P., *Elliott Smith, E.A., Lyons, S.K., Newsome, S.D., Stafford, T.W. (2016) Unraveling the consequences of the terminal Pleistocene megafauna extinction on mammal community assembly. Ecography. Smith et al. 2016.pdf

*Villegas-Bilbao, M., Newsome, S.D., Blake, J.G. (2016) Seasonal patterns in hydrogen isotope (δ2H) values of multiple tissues from Andean birds provide insights into elevational migration. Ecological Applications 26:2381–2387. Villegas et al. 2016.pdf

*von Biela, V.R., Newsome, S.D., Bodkin, J.L., Kruse, G.H., Zimmerman, C.E. (2016) Widespread kelp-derived energy in pelagic and benthic nearshore fishes. Estuarine, Coastal, and Shelf Science 181:364–374. von Biela et al. 2016.pdf

Yeakel, J.D., Bhat, U., *Elliott Smith, E.A., Newsome, S.D. (2016) Exploring the isotopic niche: isotopic variance, physiological incorporation, and the temporal dynamics of foraging. Frontiers in Ecology and Evolution. Yeakel et al. 2016.pdf

*Student Author

Newsome, S.D., Tinker, M.T., Gill, V.A., *Hoyt, Z.N., Doroff, A., Nichol, L., Bodkin J.L. (2015a) The interaction of intraspecific competition and habitat on individual diet specialization: a near range-wide examination of sea otters. Oecologia. Newsome et al. 2015a.pdf

Newsome, S.D., Garbe, H.M., *Wilson, E.C., Gehrt S.D. (2015b) Individual variation in anthropogenic resource use in an urban carnivore. Oecologia. Newsome et al. 2015b.pdf

Newsome, S.D., Collins, P.W., Sharpe, P. (2015c) Foraging ecology of a reintroduced population of breeding bald eagles on the Channel Islands, California, USA, inferred from prey remains and stable isotope analysis. The Condor: Ornithological Applications. Newsome et al. 2015c.pdf

Newsome, S.D., Sabat, P., Wolf, N., *Rader, J.A., Martinez del Rio, C. (2015d) Multi-tissue δ2H analysis reveals altitudinal migration and tissue-specific discrimination patterns in Cinclodes. Ecosphere. Newsome et al. 2015d.pdf

*Cloyed, C.S., Newsome, S.D., Eason, P.K. (2015) Trophic discrimination and isotopic incorporation of carbon and nitrogen stable isotopes in adult green frogs, Lithobates clamitans. Physiological and Biochemical Zoology 88(5): 576–585. Cloyed et al. 2015.pdf

*Elliott Smith, E.A., Newsome, S.D., Estes, J.A., Tinker, M.T. (2015) The cost of reproduction: differential resource specialization in female and male California sea otters. Oecologia. Elliott Smith et al. 2015.pdf

*Hofman, C.A., Rick, T.C., Hawkins, M.T.R., Funk, C., Ralls, K., Boser, C., Collins, P.W., Coonan, T., King, J., Morrison, S., Newsome, S.D., Sillett, T.S., Fleischer, R., Maldonado, J.E. (2015) Mitochondrial genomes reveal rapid evolution of dwarf California Channel Islands foxes (Urocyon littoralis). PLoSOne. Hofman et al. 2015.pdf

Layman, C.A., Newsome, S.D., *Gancos Crawford, T. (2015) Individual-level niche specialization within populations: emerging areas of study. Oecologia. Layman et al. 2015.pdf

*Lounsberry Z.T., Brown, S.K., Collins, P.W., Henry, R.W., Nevins, H., Etnier, M.A., Newsome, S.D., Sacks B.N. (2015) Sequencing mitogenomes of three North Pacific albatross (Phoebastria spp.) to circumvent confounding effects of gene duplications. Molecular Ecology Resources. Lounsberry et al. 2015.pdf

*Orr, T.J., Newsome, S.D., Wolf, B.O. (2015) Cacti supply limited nutrients to a desert rodent community. Oecologia. Orr et al. 2015.pdf

Pauli, J.N, Steffan, S.A., Newsome, S.D. (2015) It is time for IsoBank. Bioscience. Pauli et al. 2015.pdf

Sepulveda, M., Newsome, S.D., *Pavez, G., Oliva, D., Costa, D.P. Huckstadt, L.A. (2015) Using satellite tracking and isotopic information to characterize the impact of South American sea lions on salmonid aquaculture in southern Chile. PLoSOne. Sepulveda et al. 2015.pdf

*vonBiela V.R., Newsome, S.D., Zimmerman, C.E. (2015) Correlation between otolith and muscle δ13C values supports the use of otoliths as diet proxies in wild-caught black rockfish (Sebastes melanops). Aquatic Ecology 23:201–208. von Biela et al. 2015.pdf

Wolf, N., Newsome, S.D., *Peters, J., Fogel, M.L. (2015). Variability in the routing of dietary proteins and lipids to consumer tissues influences tissue-specific discrimination. Rapid Communications in Mass Spectrometry 29: 1448–1456. Wolf et al. 2015.pdf

*Student Author

Newsome, S.D., Wolf, N., *Peters, J., Fogel, M.L. (2014) Compound specific δ13C analysis shows that mammals can use dietary lipids to synthesize non-essential amino acids for tissue synthesis. Integrative and Comparative Biology 54: 890–902. Newsome et al. 2014.pdf

Hamilton, S.L., Newsome, S.D., Caselle, J.E. (2014) Niche expansion of a kelp forest predator recovering from intense commercial exploitation. Ecology 95(1): 164-172. Hamilton et al. 2014.pdf

*Hernandez, L.D., Lounsberry Z.T., Collins, P.W., Henry, R.W., Newsome, S.D., Sacks B.N. (2014) Development and characterization of 15 polymorphic microsatellite markers for North Pacific albatross using paired-end Illumina shotgun sequencing. Conservation Genetics Resources. Hernandez et al. 2014.pdf

Rick, T.C., Sillett, T.S., Ghalambor C.K., *Hofman, C.A., Ralls, K., Anderson, R.S., Boser, C., Braje, T.J., Cayan, D., Chesser, T., Collins, P.W., Erlandson, J.M., Faulkner, K.R., Fleischer, R., Funk W.C., Galipeau, R., Huston, A., King, J., Laughrin, L., Maldonado, J., McEachern, K., Muhs, D.R., Newsome, S.D., Reeder-Myers, L., Still, C., Morrison, S.A. (2014) From the Pleistocene to the Anthropocene: 20,000 years of ecological change and the future of biodiversity, Channel Islands, California. Bioscience. Rick et al. 2014.pdf

*Elorriaga-Verplancken, F., Aurioles-Gamboa D., Newsome, S.D., Martinez-Diaz, S.F. (2013) Sex and age differences in feeding habits of California sea lions (Zalophus californianus): reconstruction from δ15N and δ13C values in dental collagen. Marine Biology. Elloriaga-Verplancken et al. 2013.pdf

*Polo-Silva, C., Newsome, S.D., Galvan-Magana, F., Grijalba-Bendeck, M., Sanjuan-Munoz, A. (2013) Trophic shift in the diet of pelagic thresher shark (Alopias pelagicus) based on stable isotope analysis and stomach contents. Marine Biology Research. Polo-Silva et al. 2013.pdf

Riccialdelli, L., Newsome, S.D., Dellabianca, N.A., Fogel, M.L., Goodall, N.P. (2013) Ontogenetic variation in trophic habits of Commerson’s dolphin (Cephalorhynchus commersonii) off Tierra del Fuego, Argentina. Polar Biology 36(5). Riccialdelli et al. 2013.pdf

Tinker, M.T., Jessup, D., Staedler, M., Murray, M., Miller, M., Burgess, T., Bowen, E., Miles, K., Tomoleoni, J., Thometz, N., Tarjan, L., Golson, E., Batac, F., Dodd, E., Berberich E., Kunz J., Bentall G., Nicholson T., Newsome, S.D., MacCormick, H., Melli, A., Johnson, A., Henkel, L., Kreuder-Johnson, C., Conrad, P. (2013) Sea otter population biology at Big Sur and Monterey California: investigating the consequences of resource abundance and anthropogenic stressors for sea otter recovery. California Coastal Conservancy and U.S. Fish and Wildlife Service Final Report.

*Tyrrell, L.P., Newsome, S.D., Veins, M., Bowden, R., Fogel, M.L., Murray, M. (2013) Vibrissae growth rates and trophic discrimination factors in captive southern sea otters (Enhydra lutris nereis). Journal of Mammalogy 94(2): 331-338. Tyrrell et al. 2013.pdf

*Wolf, N., Newsome, S.D., Fogel, M.L., Martinez del Rio, C. (2013) The relationship between drinking water and δD and δ18O values of avian tissues. The Auk 130(2): 323-330. Wolf et al. 2013.pdf

Newsome, S.D., Yeakel, J.D., Wheatley, P.V., Tinker, M.T., (2012) Tools for quantifying isotopic niche space and dietary variation at the individual and population scale. Journal of Mammalogy 93(2): 329-341. Newsome et al. 2012.pdf. R-code and instructions for calculating individuality metrics and generating density plots:

*Alter, S.E., Newsome, S.D., Palumbi, S.R. (2012) Pre-whaling genetic diversity and population ecology in eastern Pacific gray whales: insights from ancient DNA and stable isotopes. PLoSOne 7(5): e35039. Alter et al. 2012.pdf

Ben-David, M., Newsome, S.D., Whiteman, J.P. (2012) Lipid and amino acid composition influence incorporation and discrimination of stable carbon and nitrogen isotopes in captive mink. Journal of Mammalogy 93(2): 399-412. Ben-David et al. 2012.pdf

Graves, G.R., Newsome, S.D., Willard, D.E., Grossheusch, D., Fogel, M.L. (2012) Stable isotope correlates of body condition of Great Gray Owls during a historic winter irruption. Canadian Journal of Zoology 90: 787-797. Graves et al. 2012.pdf

*Riccialdelli, L., Newsome, S.D., Fogel, M.L., Goodall, N.P. (2012) Insight into Risso’s dolphin population structure in the southwestern Atlantic Ocean using carbon (δ13C) and nitrogen (δ15N) isotope values. Marine Mammal Science. Riccialdelli et al. 2012.pdf

*Wheatley, P.V., Peckham, H., Newsome, S.D., Koch, P.L. (2012) Estimating marine resource use by Crocodylus acutus in southern Florida. Marine Ecology Progress Series 447 211-229. Wheatley et al. 2012.pdf

*Wolf, N., Newsome, S.D., Fogel, M.L., Martinez del Rio, C. (2012) An experimental exploration of the incorporation of hydrogen isotopes from dietary sources into avian tissue. Journal of Experimental Biology 215: 1915-1922. Wolf et al. 2012.pdf

Newsome, S.D., Fogel, M.L., Kelly, L., Martinez del Rio, C. (2011a) Contributions of microbial amino acids and direct incorporation from diet to protein synthesis in Nile tilapias. Functional Ecology 25: 1051–1062. Newsome et al. 2011a.pdf

Newsome, S.D., Miller, G.H., Magee, J.W., Fogel, M.L. (2011b) Quaternary record of aridity and mean annual precipitation based on δ15N in ratite and dromornithid eggshells from Lake Eyre, Australia. Oecologia 167(4): 1152–1162. Newsome et al. 2011b.pdf

Newsome, S.D., Collins, P., Rick, T., Guthrie, D.A, Erlandson, J.M., Fogel, M.L. (2011c) Reply to Hudgens et al.: Bald eagles, no-analog ecological scenarios, and conservation strategies on the Channel Islands. Proceedings of the National Academy of Sciences USA. Newsome et al. 2011c.pdf; Hudgens et al. 2011.pdf

*Hamilton, S.L., Caselle, J.E., Lantz, C., Egloff, T., Kondo, E, Newsome, S.D., Loke-Smith, K., Young, K.A., Lowe, C.G. (2011) Extensive geographic and ontogenetic variation characterize the trophic ecology of California sheephead (Semicossyphus pulcher) in southern California. Marine Ecology Progress Series 429: 227–244. Hamilton et al. 2011.pdf

*Orr, A.J., VanBlaricom, G.R., DeLong, R.L., Cruz-Escalona, V.H., Newsome, S.D. (2011) Intraspecific comparison of California sea lion (Zalophus californianus) diet assessed using fecal and stable isotope analysis. Canadian Journal of Zoology 89: 109–122. Orr et al. 2011a.pdf

*Orr, A.J., Newsome, S.D., Laake, J.L., VanBlaricom, G.R., DeLong, R.L. (2011) Ontogenetic trends in foraging behaviors of California sea lions (Zalophus californianus) using stable isotopes. Marine Mammal Science. Orr et al. 2011b.pdf

Newsome, S.D., Clementz, M.R., Koch, P.L. (2010a) Using stable isotope biogeochemistry to study marine mammal ecology. Marine Mammal Science 26(3): 509–572. Newsome et al. 2010a.pdf

Newsome, S.D., Bentall, G.B., Tinker, M.T., Oftedal, O., Ralls, K., Fogel, M.L., Estes, J.A. (2010b) Variation in diet-vibrissae δ13C and δ15N trophic discrimination factors for a wild population of California sea otters (Enydra lutris nereis). Ecological Applications 20(6): 1744–1752. Newsome et al. 2010b.pdf

Newsome, S.D., Collins, P., Rick, T., Guthrie, D.A, Erlandson, J.M., Fogel, M.L. (2010c) Pleistocene to historic shifts in bald eagle diets on the Channel Islands, California. Proceedings of the National Academy of Sciences USA 107(20): 9246–9251. Newsome et al. 2010c.pdf

Newsome, S.D., Park, J.S., Henry, R.W., Holden, A., Fogel, M.L., Linthicum, J., Chu, Vivian, Hooper K. (2010d) Polybrominated diphenyl ether (PBDE) levels in peregrine falcon (Falco peregrinus) eggs from California correlate with diet and human population density. Environmental Science & Technology 44(13): 5248–5255. Newsome et al. 2010d.pdf

Newsome, S.D., Ralls, K., Van Horn Job, C., Fogel, M.L., Cypher B.L. (2010e) Stable isotopes evaluate exploitation of anthropogenic food by the endangered San Joaquin kit fox (Vulpes macrotis mutica). Journal of Mammalogy 91(6): 1313–1321. Newsome et al. 2010e.pdf

Alexander, C.M.O.D., Newsome, S.D., Fogel, M.L., Nitler, L.R., Busemann, H., Cody, G.D. (2010) Deuterium enrichments in chondritic macromolecular material – implications for the origin and evolution of organics, water, and asteroids. Geochimica et Cosmochimica Acta 74(15): 4417–4437. Alexander et al. 2010.pdf

Graham, B., Koch, P.L., Newsome, S.D., McMahon, K., Aurioles, D. (2010) Using isoscapes to trace the movement and foraging behavior of top predators in oceanic ecosystems. In press, In Isoscapes: Understanding Movement, Pattern, and Process on Earth through Isotope Mapping, J.B. West, G.J. Bowen, T.E. Dawson TE, K.P. Tu, editors. Springer-Verlag, Berlin. Graham et al. 2010.pdf

*Pinsky, M.L, Newsome, S.D., Dickerson, B., van Tuinen, M., Kennett, D.J., Ream, R.R., Hadly, E.A. (2010) Refuge and high migration rates buffered northern fur seals (Callorhinus ursinus) from genetic impacts of range contraction and population decline. Molecular Ecology 19: 2418–2429. Pinsky et al. 2010.pdf

*Riccialdelli, L., Newsome, S.D., Fogel, M.L., Goodall, N.P. (2010) Isotopic assessment of prey and habitat preferences of a small cetacean community in the southwestern Atlantic Ocean. Marine Ecology Progress Series 418: 235–248. Riccialdelli et al. 2010.pdf

Newsome, S.D., Etnier, M.A., Monson, D.H., Fogel M.L. (2009a) Retrospective characterization of ontogenetic shifts in killer whale diets via δ13C and δ15N analysis of sectioned teeth. Marine Ecology Progress Series 374: 229-242. Newsome et al. 2009a.pdf

Newsome, S.D., Tinker, M.T., Monson, D.H., Oftedal, O., Ralls, K., Fogel, M.L., Estes, J.A. (2009b). Using stable isotopes to investigate individual diet specialization in California sea otters (Enhydra lutris nereis). Ecology 90(4): 961-974. Newsome et al. 2009b.pdf

Aurioles-Gamboa, D., Newsome, S.D., Salazar-Pico, S., Koch, P.L. (2009) Stable isotopic differences between sea lions (Zalophus californianus) from the Gulf of California and Galapagos Islands. Journal of Mammalogy 90(6): 1410–1420. Aurioles et al. 2009.pdf

Barton, L., Newsome, S.D., Chen, F.H., Wang, H., Guilderson, T.P., Bettinger, R.L. (2009) Agricultural origins and the isotopic identity of domestication in northern China. Proceedings of the National Academy of Sciences USA 106(14): 5523–5528. Barton et al. 2009.pdf

Koch, P.L., Fox-Dobbs, K., Newsome, S.D. (2009) The isotopic ecology of fossil vertebrates and conservation paleobiology. In Conservation Paleobiology: Using the Past to Manage the Future, G.P. Dietl and K. Flessa, editors. Paleontological Society Special Publication 18. Koch et al. 2009.pdf

*Orr, A.J., Newsome, S.D., DeLong R.L (2009) Variation in stable carbon and nitrogen isotope values from multiple tissues of California sea lions (Zalophus californianus). Proceedings of the 7th Annual Channel Islands Symposium. Orr et al. 2009.pdf

Newsome, S.D., Etnier, M.A., Kurle, C.M., Koch, P.L. (2007a) Historic decline in primary productivity in the western Gulf of Alaska and eastern Bering Sea? Isotopic analysis of northern fur seal teeth. Marine Ecology Progress Series 332: 211-224. Newsome et al. 2007a.pdf

Newsome, S.D., Etnier, M.A., Gifford-Gonzalez, D., Phillips, D.L., van Tuinen, M., Hadly, E.A., Costa, D.P., Kennett, D.J., Guilderson, T.P., Koch, P.L. (2007b) The shifting baseline of northern fur seal (Callorhinus ursinus) ecology in the northeast Pacific Ocean. Proceedings of the National Academy of Sciences USA 104(23): 9709-9714. Newsome et al. 2007b.pdf

Newsome, S.D., Martinez del Rio, C., Bearhop, S., Phillips, D.L., (2007c). A niche for isotopic ecology. Frontiers in Ecology and the Environment 5(8): 429-436. Newsome et al. 2007c.pdf

Newsome, S.D., Etnier, M.A., Aurioles-Gamboa, D., Koch, P.L. (2006) Using carbon and nitrogen isotope values to investigate maternal strategies in northeast Pacific otariids. Marine Mammal Science 22(3): 556-572. Newsome et al. 2006.pdf

Moss, M.L., Yang, D., Newsome, S.D., Speller, C., McMillan, A., Losey, R.J., McKechnie, I., Crockford, S., Frederick, G., Koch, P.L. (2006) Historical ecology and biogeography of North Pacific pinnipeds: isotopes and ancient DNA from three archaeological assemblages. Journal of Island and Coastal Archaeology 1: 165-190. Moss et al. 2006.pdf

Chamberlain, C.P., Waldbauer, J.R., Fox-Dobbs, K., Newsome, S.D., Koch, P.L., Smith, D.R., Church, M.E., Chamberlain, S.D., Sorenson, K.J., Risebrough, R. (2005) Pleistocene to recent dietary shifts in California Condors. Proceedings of the National Academy of Sciences USA 102(46): 16707-16711. Chamberlain et al. 2005.pdf

Phillips, D.L., Newsome, S.D., and Gregg, J.W. (2005) Combining sources in stable isotope mixing models: alternative methods. Oecologia 144: 520-527. Phillips et al. 2005.pdf

Gifford-Gonzalez, D., Newsome, S.D., Koch P.L., Guilderson, T.P., Snodgrass, J.J., Burton, R.K. (2004) Archaeofaunal insights on pinniped-human interactions in the northeastern Pacific. In The Exploitation and Cultural Importance of Marine Mammals, G. Monks, editor. Oxbow Books, Oxford. Pp. 19-38. Gifford-Gonzalez et al. 2004.pdf

Newsome, S.D., Phillips, D.L., Culleton, B.J., Guilderson, T.P., and Koch, P.L. (2004) Dietary reconstruction of an Early to Middle Holocene human population from the central California coast: insights from advanced stable isotope mixing models. Journal of Archaeological Science 31: 1101-1115. Newsome et al. 2004.pdf

Aurioles-Gamboa, D., *Rosas Hernandez M., *Hernandez-Camacho, C., Newsome, S.D. Isotopic breadth and overlap in juvenile and adult female Zalophus californianus. Marine Mammal Science.

*Barrios-Guzman, C., Harrod, C., Guerrero, A., *Muñoz, L., *Pavez, Gu. Quiñones, R., Reyes, H., Santo-Carvallo, M., Zarate, P., Newsome, S.D., Sepulveda, M. Latitudinal variation in carbon and nitrogen isotope values in marine top predator is driven by baseline isotopic variation. Marine Environmental Research.

Busquets-Vass, G., Pardo, M.A., Blevins, C. Gendron, D., Jacobsen, J.K., Gómez, F., Pérez Puig, H., Ortega-Ortiz, C., Heckel, G., Urban-Ramírez, J., Viloria-Gómora, L., Kellar, N., Newsome, S.D. Anomalies in the incorporation rate of amino acid nitrogen isotope values as indicators of physiological status of a free-ranging marine mammal. Functional Ecology.

Carroll, E.L., Dunshea, G., Childerhouse, S, Baker, C.S., Hindall, M., Valenzuela, L., Newsome, S.D. Isotopic niche profiles vary by demographic class and wintering ground in New Zealand southern right whales, Tohora. Marine Ecology Progress Series.

Koch, P.L., Hall, B.L., de Bruyn, M., Hoelzel, A.R., Baroni, C., Salvatore, M.C., Newsome, S.D., Gilbert, K.N., van den Hoff, J. Implications of mummified and skeletal southern elephant seal (Mirounga leonina) remains along the Victoria Land Coast, Antarctica. Marine Mammal Science.

Lubcker, N., McIntyre, T.M., Newsome, S.D., de Bruyn, N. Foraging site fidelity, individual diet specialization, and interannual trophic niche conservatism across an environmental isotope gradient. Journal of Animal Ecology.

*Pershall-Zimmerman, A.D., Newsome, S.D., Warne, R.W., Mathiasen, C.C., Wolf, B.O. Seasonal and inter-annual variation in resource use by a small community in the northern Chihuahuan Desert, NM. Global Change Biology.

Shipley, O.N., Cerling, T.E., Hamilton, D., Lubcker, N., Wittemeyr, G., Newsome, S.D. Amino acid nitrogen isotope chronologies reveal patterns of incorporation and ecological history in an African elephant (Loxodonta africana).

*Wall, C.B., *Besser, A.C., Symons, C.C., Newsome, S.D., Shurin, J.B. Zooplankton reliance on autochthonous and allochthonous resources across alpine lakes revealed through essential amino acid d13C analysis. Limnology and Oceanography Letters.

Whiteman, J.P., Carter, W., Cooper-Mullin, C., McWilliams, S.R., Newsome, S.D. Activity influences carbon turnover rate in muscle amino acids in a songbird. Functional Ecology.