ShAPE Lab Publications (reverse chronological order)

2023

Cimino, M.A., Welch, H., Santora, J.A., Kroodsma, D., Hazen, E.L., Bograd, S.J., Warzybok, P., Jahncke, J.,

Shaffer, S.A. (2023) Tracked gulls help identify potential zones of interaction between whales and shipping traffic.
Marine Ornithology, in press.

Welch, H., Savoca, M.S., Brodie, S., Jacox, M.G., Muhling, B.A., Clay, T.A., Cimino, M.A., Benson, S.R., Block, B.A., Conners, M.G., Costa, D.P., Jordan, F.D., Leising, A.W., Mikles, C.S., Palacios, D.M., Shaffer, S.A., Thorne, L.H., Watson, J.T., Holser, R.R., Dewitt, L., Bograd, S.J., Hazen, E.L. (2023) Impacts of marine heatwaves on top predator distributions are variable but predictable. Nature Communications 14: 5188. doi.org/10.1038/s41467-023-40849-y

Clark, B.L. et al. (2023) Global assessment of marine plastic exposure risk for oceanic birds. Nature Communications, 14: 3665. doi.org/10.1038/s41467-023-38900-z. Shaffer was one of 60+ authors on this paper.

Beal, M. et al. (2023) Quantifying annual spatial consistency in chick-rearing seabirds to inform important site identification. Biological Conservation, 281: 109994 (pp. 1-11), doi.org/10.1016/j.biocon.2023.109994. Shaffer was one of 40+ authors on this paper.

Kralj, J., et al. (2023) Active breeding seabirds prospect alternative breeding colonies. Oecologia, 201 (2): 341-354. doi.org/10.1007/s00442-023-05331-y. Shaffer is one of 30+ authors on this paper.

2022

Guerra, A.S., Bui, A., Klope, M., Orr, D.A., Shaffer, S.A., Young, H.S. (2022) Leaving more than footprints: anthropogenic nutrient subsidies to a protected area. Ecosphere, 13: e4371, doi: 10.1002/ecs2.4371.

 

Jordan, F.D., Shaffer, S.A., Conners, M.G., Stepanuk, J.E.F., Gilmour, M.E., Clatterbuck, C.A., Hazen, E.L., Palacios, D.M., Tremblay, Y., Antolos, M., Foley, D.G., Bograd, S.J., Costa, D.P. and Thorne, L.H. (2022) Divergent post-breeding spatial habitat use of Laysan and black-footed albatross. Frontiers in Ecology and Evolution, 10:1028317, doi: 10.3389/fevo.2022.1028317.

 

Conners, M.G., Maxwell, S.M., Sisson, N., Agamboue, P., Atkinson, P., Bayliss, A., Benson, S.R., Block, B.A., Bograd, S.J., Bordino, B., Bowen, D.W., Brickle, P., Bruno, I., González Carman, V., Champagne, C.D., Crocker, D.E., Costa, D.P., Dawson, T.M., Deguchi, T., Dewar, H., Doherty, P.D., Eguchi, T., Formia, A., Godley, B.J., Graham, R. Gredzens, C., Hart, K.M., Hawkes, L.A., Henderson, S., Henry, B., Huckstadt, L., Irvine, L.M., Kienle, S., Kuhn, C., Lidgard, D., Loredo, S., Mate, B., Metcalfe, K., Kouerey, C., Nzegoue, J., Orben, R.A., Ozaki, K., Parnell, R., Pike, B., Robinson, P., Rosenbaum, H., Sato, F., Shaffer, S.A., Shaver, D.J., Simmons, S.E., Smith, B., Sounguet, G., Suyran, R.M., Thompson, D., Tierney, M., Tilley, D., Young, H.S., Warwick-Evans, V., Weise, M.J., Wells, R., Wilkinson, B., Witt, M.J. (2022) Mismatches in Scale Between Highly Mobile Marine Megafauna and Marine Protected Areas. Frontiers in Marine Science, 9:897104 (pp. 1-17), doi: 10.3389/fmars.2022.897104.

 

Gilmour, M.E., Adams, J., Block, B.A., Caselle, J.E., Friedlander, A.M., Game, E.T., Hazen, E.L., Holmes, N.D., Lafferty, K.D., Maxwell, S.M., McCauley, D.J., Oleson, E.M., Pollock, K., Shaffer, S.A., Wolff, N.H., Wegmann, A. (2022) Evaluation of MPA designs that protect highly mobile megafauna now and under climate change scenarios. Global Ecology and Conservation, 35: e02070 (pp. 1-19). doi: 10.1016/j.gecco.2022.e02070.

 

Cimino, M.A., Shaffer, S.A., Welch, H., Santora, J.A., Warzybok, P., Jahncke, J., Schroeder, I., Hazen, E.L., Bograd, S.J. (2022) Western gull foraging behavior as an ecosystem state indicator in coastal California. Frontiers in Marine Science, 8: 790559 (pp. 1-13). doi: 10.3389/fmars.2021.790559.

2021

Burnside, R.J., Shaffer, S.A., Cusco, F., Rahman, M., and Scotland, K.M. (2021) Quantifying egg attendance behaviours of wild Asian houbara can improve artificial incubation outcomes. Endangered Species Research, 46: 193-204. 

 

Shaffer, S.A., Blévin, P., Barbraud, C., Chastel, O., and Weimerskirch, H. (2021) Comparative egg attendance patterns of incubating polar petrels. Animal Biotelemetry, 9: 17 (pp. 1-11).

 

Henry, R.W., Shaffer, S.A., Antolos, M., Félix-Lizárraga, M., Foley, D.G., Hazen, E.L., Tremblay, Y., Costa, D.P., Tershy, B.R., and Croll, D.A. (2021) Successful long-distance breeding range expansion of a top marine predator. Frontiers in Ecology and Evolution, 9: 620103 (pp. 1-16).

 

Clatterbuck, C.A., Lewison, R.L., Orben, R.A., Ackerman, J.T., Torres, L.G., Suryan, R.M., Warzybok, P., Jahncke, J. and Shaffer, S.A. (2021) Foraging in marine habitats increases mercury concentrations in a generalist seabird. Chemosphere, 279: 130470 (pp. 1-9).

 

Conners, M.G., Michelot, T., Heywood, E.I., Orben, R.A., Phillips, R.A., Vyssotski, A.L., Shaffer, S.A., and Thorne, L.H. (2021) Hidden Markov models identify major movement modes in accelerometer and magnetometer data from four albatross species. Movement Ecology, 9: 5 (pp. 1-16).

 

Beal, M. et al. (2021) Global political responsibility for the conservation of albatrosses and large petrels. Science Advances, 7: eabd7225 (pp. 1-12). Shaffer was one of 40+ authors on this paper.

 

Orben, R.A., Adams, J., Hester, M., Shaffer, S.A., Suryan, R.M., Deguchi, T., Ozaki, K., Sato, F., Young, L.C., Clatterbuck, C.A., Conners, M.G., Kroodsma, D.A., Torres, L.G. (2021) Across borders: External factors and prior behavior influence North Pacific albatross associations with fishing vessels. Journal of Applied Ecology, 58: (pp. 1-12). doi.org/10.1111/1365-2664.13849.

2020

Mallon, J.M. et al. (2020) Diurnal timing of nonmigratory movements by birds: the importance of foraging spatial scales. Journal of Avian Biology, 51: e02612 (pp. 1-11). doi.org/10.1111/jav.02612, Shaffer was one of 30+ authors.

 

Kroeger, C.E., Crocker, D.E., Orben, R.A., Thompson, D.R., Torres, L.G., Sagar, P., Sztukowski, L.A., Andreise, T., Costa, D.P. and Shaffer, S.A. (2020) Similar foraging energetics of two sympatric albatrosses despite contrasting life histories and foraging strategies in the wind. Journal of Experimental Biology, 223 (24): jeb228585 (pp. 1-13). doi.org/10.1242/jeb.228585.

 

Blévin, P., Shaffer, S.A., Bustamante, P., Angelier, F., Picard, B., Herzke, D., Moe, B., Gabrielsen G.W., Bustnes, J.O., and Chastel, O. (2020) Contaminants, prolactin and parental care in an Arctic seabird: Contrasted associations of perfluoroalkyl substances and organochlorine compounds with egg-turning behavior. General and Comparative Endocrinology, 291: 113420 (pp. 1 11).

2019

Wren, J.L.K., Shaffer, S.A., Polovina, J.J. (2019) Variations in black-footed albatross sightings in a North Pacific transitional area due to changes in fleet dynamics and oceanography 2006-2017. Deep-Sea Research Part II, Topical Studies in Oceanography169-170: 104605 (pp. 1-9).

 

Fleishman, A.B., Orben, R.A., Kokubun, N., Will, A., Paredes, R., Ackerman, J.T., Takahashi, A., Kitaysky, A., Shaffer, S.A. (2019) Wintering in the western Subarctic Pacific increases mercury contamination of red-legged kittiwakes. Environmental Science & Technology 53(22): 13398-13407.

 

Sequeira, A.M.M., Hays, G.C., Sims, D.W., Eguíluz, V.M., Rodriguez, J., Heupel, M., Harcourt. R., Callich, H., Queiroz, N., Costa, D.P., Fernández-Gracia, J., Ferreira, L.C., Goldsworthy, S.D., Hindell, M., Lea, M-A., Meekan, M., Pagano, A., Shaffer, S.A., Reisser, J., Thums, M., Weise, M.J., Duarte, C.M. (2019) Overhauling ocean spatial planning to improve marine megafauna conservation. Frontiers in Marine Science 6: 639 (pp 1-12).

 

Gilmour, M.E., Trefry, S.A., Lamborg, C., Fleishman, A.B., Young, H.S., Shaffer, S.A. (2019) Tropical seabirds sample broad scale patterns of marine contaminants. Science of the Total Environment 691: 631-645.

 

Cockerham, S., Lee, B., Orben, R.A., Suryan, R.M., Torres, L.G., Warzybok, P., Bradley, R., Jahncke, J., Young, H.S., Ouverney, C., and Shaffer, S.A. (2019) Microbial ecology of the western gull (Larus occidentalis). Microbial Ecology 78: 665-676.

 

Gilmour, M.E., Lavers, J.L., Lamborg, C., Chastel, O., Kania, S.A., Shaffer, S.A. (2019) Mercury as an indicator of foraging ecology but not the breeding hormone prolactin in seabirds. Ecological Indicators 103: 248-259.

 

Kroeger, C., Crocker, D.E., Thompson, D.R., Torres, L.G., Sagar, P., and Shaffer, S.A. (2019) Corticosterone as a behavioral driver and nutrient response in two sympatric albatrosses. Physiological and Biochemical Zoology 92(2): 223-238.

2018

Harrison, A.-L., Costa, D.P., Winship, A.J., Benson, S.R., Bograd, S.J., Carlisle, A.B., Dewar, H., Dutton, P.H., Jorgensen, S.J., Antolos, M., Kohin, S., Mate, B.R. , Robinson, P.W., Schaefer, K.M., Shaffer, S.A., Shillinger, G.L., Simmons, S.E., Weng, K.C., Gjerde, K.M., and Block, B.A. (2018) The political biogeography of migratory marine predators. Nature ecology & evolution 2(10): 1571-1578.

 

Blévin, P., Shaffer, S.A., Bustamante, P., Angelier, F., Picard, B., Herzke, D., Moe, B., Gabrielsen G.W., Bustnes, J.O., and Chastel, O. (2018) Contaminants and incubation temperature in an Arctic seabird: insight from artificial egg loggers. Environmental Toxicology and Chemistry 37: 2881-2894.

 

Gilmour, M.E., Castillo Guerrero, J.A., Fleishman, A., Hernández-Vázquez, S., Young, H.S., and Shaffer, S.A. (2018) Plasticity of foraging behaviors in response to diverse environmental conditions. Ecosphere 9(7): e02301 (pp. 1-18).

 

Conners, M.G., Goetsch, C., Budge, S.M., Walker, W.A., Mitani, Y., Costa, D.P., and Shaffer, S.A. (2018) Fisheries exploitation by albatross quantified with lipid analysis. Frontiers in Marine Science 5: 113 (pp. 1-16).

 

Sequeira, A.M.M., Rodríguez, J.P. Eguíluz, V.M., Harcourt, R., Hindell, M., Sims, D.W., Duarte, C.M., Costa, D.P., Fernandez-Gracia, J., Ferreira, L.C., Hays, G.C., Heupel, M.R., Meekan, M.G., Aven, A., Bailleul, F., Baylis, A., Berumen, M.L., Braun, C.D., Burns, J., Caley, M.J., Campbell, R., Carmichael, R.H., Clua, E., Einoder, L., Friedlaender, A., Goebel, M.E., Goldsworthy, S.D., Guinet, C., Gunn, J., Hamer, D., Hammerschlag, N., Hammill, M., Hückstädt, L.A., Humphries, N.E., Lea, M-A., Lowther, A., Mackay, A., McHuron, E., McKenzie, J., McLeay, L., McMahon, C.R., Mengersen, K., Muelbert, M., Pagano, A.M., Page, B., Queiroz, N., Robinson, P.W., Shaffer, S.A., Shivji, M., Skomal, G.B., Thorrold, S.R., Villegas-Amtmann, S., Weise, M.J., Wells, R., Wetherbee, B., Wiebkin, A., Wienecke, B., Thums, M.(2018) Convergence of marine megafauna movement patterns in coastal and open oceans. Proceedings of the National Academy of Sciences 115 (12): 3072-3077.

 

Taylor, G.T., Ackerman, J.T., and Shaffer, S.A. (2018) Egg turning behavior and incubation temperature in Forster’s terns in relation to mercury contamination. PLoS ONE 13: e0191390 (pp. 1-12).

 

Wilkinson, B.P., Jahncke, J., Warzybok, P., Bradley, R.W., and Shaffer, S.A. (2018) Variable utilization of shelf break associated habitats by chick-brooding rhinoceros auklets in the California Current system. Marine Ecology Progress Series 590: 211-226.

 

Orben, R.A., Kokubun, N., Fleishman, A., Will, A., Yamamoto, T., Shaffer, S.A., Paredes, R., Takahashi, A., Kitaysky, A. (2018) Persistent annual migration patterns of a specialist seabird.Marine Ecology Progress Series 593: 231-245.

2017

Shaffer, S.A., Cockerham, S., Warzybok, P., Bradley, R.W, Jahncke, J., Clatterbuck, C.A., Lucia, M., Jelincic, J., Cassell, A., Kelsey, E.C., and Adams, J. (2017) Population-level plasticity in foraging behavior of western gulls (Larus occidentalis). Movement Ecology 5: 27 (pp. 1-13).

 

Antolos, M, Shaffer, S.A., Weimerskirch, H., Tremblay, Y., and Costa, D.P. (2017) Foraging behavior and energetics of albatrosses in contrasting breeding environments. Frontiers in Marine Science 4: 414 (pp. 1-12).

 

Clatterbuck, C.A., Young, L.C., VanderWerf, E.A., Naiman, A.D., Bower, G.A., and Shaffer, S.A. (2017) Data loggers in artificial eggs reveal egg turning behavior varies on multiple ecological scales in seabirds. Auk 134: 432-442.

2016

Thorne, L.H., Conners, M.G., Hazen, E.L., Bograd, S.J., Antolos, M., Costa, D.P., and Shaffer, S.A. (2016) Effects of El Niño-driven changes in wind patterns on North Pacific albatrosses. Journal of the Royal Society Interface 13: 20160196 (pp. 1-13).

 

Hays, G.C., Ferreira, L.C., Sequeira, A.M.M., Meekan, M.G., Duarte, C.M., Bailey, H., Bailleul, F., Bowen, W.D., Caley, M.J., Costa, D.P., Eguíluz, V.M., Fossette, S., Friedlaender, A.S., Gales, N., Gleiss, A.C., Gunn, J., Harcourt, R., Hazen, E.L., Heithaus, M.R., Heupel, M., Holland, K., Horning, M., Jonsen, I., Kooyman, G.L., Lowe, C.G., Madsen, P.T., Marsh, H., Phillips, R.A., Righton, D., Ropert-Coudert, Y., Sato, K., Shaffer, S.A., Simpfendorfer, C.A., Sims, D.W., Skomal, G., Takahashi, A., Trathan, P.N., Wikelski, M., Womble, J.N., and Thums, M. (2016) Key questions in marine megafauna movement ecology. Trends in Ecology and Evolution 31: 463-475.

 

Lascelles, B.G. Taylor, P.R., Miller, M.G.R., Dias, M.P., Oppel, S., Torres, L., Hedd, A., Le Corre, M., Phillips, R.A., Shaffer, S.A., Weimerskirch, H., and Small, C. (2016) Applying global criteria to tracking data to define important areas for marine conservation. Diversity and Distributions 22: 422-431.

 

Kelsey, E.C., Warzybok, P., Bradley, R., Jahncke, J., and Shaffer, S.A. (2016) Environmental temperatures, artificial nests, and incubation of Cassin’s Auklet. Journal of Wildlife Management 80: 292-299.

2015

Gutowsky, S.E., Leonard, M.L., Conners, M.G., Shaffer, S.A., and Jonsen, I.D. (2015). Individual-level variation and higher-level interpretations of space use in wide-ranging species: An albatross case study of sampling effects. Frontiers in Marine Sciences2: 3 (pp. 1-17).

 

Orben, R.A., Paredes, R., Irons, D.B., Roby, D.D., and Shaffer, S.A. (2015) Body size affects individual winter foraging strategies of thick-billed murres in the Bering Sea. Journal of Animal Ecology 84: 1589-1599.

 

Thorne, L.H., Hazen, E.L., Bograd, S.J., Foley, D.G., Conners, M.G., Kappes, M.A., Kim, H.M., Tremblay, Y., Costa, D.P., and Shaffer, S.A. (2015) Foraging behavior links climate variability and reproduction in North Pacific albatrosses. Movement Ecology3: 27 (pp. 1-15).

 

Orben, R.A., Paredes, R., Roby, D.D., Irons, D.B., and Shaffer, S.A. (2015) Wintering North Pacific black-legged kittiwakes balance spatial flexibility and consistency. Movement Ecology 3: 36 (pp. 1-14).

 

Conners, M.G., Hazen, E.L., Costa, D.P., and Shaffer, S.A. (2015) Shadowed by scale: subtle behavioral niche partitioning in two sympatric, tropical breeding albatross species. Movement Ecology 3: 28 (pp. 1-20).

 

Osterback, A-M.K, Frechette, D.M., Hayes, S.A., Shaffer, S.A., and Moore, J.W. (2015) Long-term shifts in anthropogenic subsidies to gulls and implications for an imperiled fish. Biological Conservation, 191: 606-613.

 

Kappes, M.A., Shaffer, S.A., Tremblay, Y., Foley, D.G., Palacios, D.M., Bograd, S.J., and Costa, D.P. (2015) Reproductive constraints influence habitat accessibility, segregation, and preference of sympatric albatross species. Movement Ecology 3: 34 (pp. 1-24).

 

Frechette, D.M., Osterback, A-M.K, Hayes, S.A., Moore, J.W., Shaffer, S.A., Pavelka, M., Clark Winchell, C., and Harvey, J.T.(2015) Assessing the relationship between gulls Larus spp. and Pacific salmon in central California using radiotelemetry. North American Journal of Fisheries Management 35: 775-788.

 

Thompson, D.R., Torres, L.G., Taylor, G.A., Rayner, M.J., Sagar, P.M., Shaffer, S.A., Phillips, R.A., and Bury, S.J. (2015) Stable isotope values delineate the non-breeding distributions of sooty shearwaters Puffinus griseus in the North Pacific Ocean. Marine Ecology Progress Series 521: 277-282.

 

Young, H.S.1, Maxwell, S.M., Conners, M.G., and Shaffer, S.A.1 (2015) Pelagic marine protected areas protect foraging habitat for multiple breeding seabirds in the central Pacific. Biological Conservation 181: 226-235. 1 – equal contribution as senior author.

 

Orben, R.A., Irons, D.B., Paredes, R., Roby, D.D., Phillips, R.A., and Shaffer, S.A. (2015) North or south? Niche separation of endemic red-legged kittiwakes and sympatric black-legged kittiwakes during their non-breeding migrations. Journal of Biogeography 42: 401-412.

2014

Gutowsky, S.E., Gutowsky, L.F.G., Jonsen, I.D., Leonard, M.L., Naughton, M.B., Romano, R.D., and Shaffer, S.A. (2014). Daily activity budgets reveal a quasi-flightless stage during non-breeding in Hawaiian albatrosses. Movement Ecology 2: 23 (pp. 1-14).

 

Osterback, A-M.K, Frechette, D.M., Hayes, S.A., Bond, M.H., Shaffer, S.A., and Moore, J.W. (2014) Linking individual size and wild and hatchery ancestry to survival and predation risk of threatened steelhead (Oncorhynchus mykiss). Canadian Journal of Fisheries and Aquatic Sciences 71: 1877-1887.

 

Carey, M.J., Phillips, R.A., Silk, J.R.D., Shaffer, S.A. (2014) Trans-equatorial migration of Short-tailed Shearwaters revealed by geolocators. Emu 114: 352-359.

 

Shaffer, S.A., Clatterbuck, C.A., Kelsey, E.C., Naiman, A.D., Young, L.C., VanderWerf, E.A., Warzybok, P., Bradley, R., Jahncke, J., Bower, G.A. (2014) As the egg turns: Monitoring egg attendance behavior in wild birds using novel data logging technology. PLoS ONE 9: e97898. doi:10.1371/journal.pone.0097898.

 

Gutowsky, S.E., Tremblay, Y., Kappes, M.A., Flint, E.N., Klavitter, J., Laniawe, L., Christenson, B., Costa, D.P., and Shaffer, S.A.(2014). Divergent post-breeding distribution and habitat associations of fledgling and adult black-footed albatrosses Phoebastria nigripes in the North Pacific. Ibis 156: 60-72.

2013

Frechette, D., Osterback, A-M.K., Hayes, S.H., Bond, M.H., Moore, J.W., Shaffer, S.A., and Harvey, J.T. (2013) A bioenergetics approach to assessing potential impacts of avian predation on juvenile steelhead during freshwater rearing. North American Journal of Fisheries Management 33: 1024-1038.

 

Osterback, A-M.K, Frechette, D.M., Shelton, A.O., Hayes, S.A., Bond, M.H., Shaffer, S.A., and Moore, J.W. (2013) High predation on small populations: avian predation on imperiled salmonids. Ecosphere 4, article 116.

 

Maxwell, S.M., Hazen, E.L., Bograd, S.J., Halpern, B.S., Breed, G.A., Nickel, B., Teutschel, N.M., Crowder, L.B., Benson, S., Dutton, P.H., Bailey, H., Kappes, M.A., Kuhn, C.E., Weise, M.J., Mate, B., Shaffer, S.A., Hassrick, J.L., Henry, R.W., Irvine, L., McDonald, B.I., Robinson, P.W., Block, B.A., and Costa, D.P. (2013) Cumulative human impacts on marine predators. Nature Communications 4, 2688-2697.

 

Hazen, E.L., Jorgensen, S., Rykaczewski, R., Bograd, S.J., Foley, D.G., Jonsen, I.D., Shaffer, S.A., Dunne, J., Crowder, L.J., Costa, D.P., Block, B.A. (2013) Predicted habitat shifts in Pacific top predators in a changing climate. Nature Climate Change 3: 234-238. DOI: 10.1038/NCLIMATE1686.

2012

Frechette, D., Osterback, A-M.K., Hayes, S.H., Bond, M.H., Moore, J.W., Shaffer, S.A., and Harvey, J.T. (2012) Assessing avian predation of juvenile salmonids using PIT tag recoveries and mark-recapture methods. North American Journal of Fisheries Management 32: 1237-1250.

 

Rayner, M.J., Taylor, G.A., Gummer, H.D., Phillips, R.A., Sagar, P.M., Shaffer, S.A., and Thompson, D.R. (2012) The breeding cycle, year-round distribution and activity patterns of the endangered Chatham Petrel (Pterodroma axillaris). Emu 112: 107-116.

 

Costa, D.P. and Shaffer S.A. (2012) Seabirds and Marine Mammals. In Metabolic Ecology: A scaling approach (R.M. Sibly, J.H. Brown, and A. Kodric-Brown, Eds). Wiley & Sons, Ltd, West Sussex, UK., 225-233.

 

Winship, A.J., Jorgensen, S.J., Shaffer, S.A., Jonsen, I.D., Robinson, P.W., Costa, D.P., and Block, B.A. (2012) State-space framework for estimating measurement error from double-tagging telemetry experiments. Methods in Ecology and Evolution 3: 291-302.

2011

Block, B.A., Jonsen, I.D., Jorgensen, S.J., Winship, A.J., Shaffer, S.A., Bograd, S.J., Hazen, E.L., Foley, D.G., Breed, G.A., Harrison, A.-L., Ganong, J.E., Swithenbank, A., Castleton, M., Dewar, H., Mate, B.R., Shillinger, G.L., Schaefer, K.M., Benson, S.R., Henry, R.W. and Costa, D.P. (2011) Tracking Apex Marine Predator Movements in a Dynamic Ocean. Nature 475: 86-90, doi:10.1038/nature10082.

 

Rayner, M.J., Taylor, G.A., Thompson, D.R., Torres, L., Sagar, P.M., and Shaffer, S.A. (2011) Migration and diving activity in three non-breeding Flesh-footed shearwaters Puffinus carneipes. Journal of Avian Biology 42: 266-270.

 

Rayner, M.J., Hauber, M.E., Steeves, T.E., Lawrence, H.A., Thompson, D.R., Sagar, P.M., Bury, S.J., Landers, T.J., Phillips, R.A., Ranjard, L., and Shaffer, S.A. (2011) Contemporary and historical separation of transequatorial migration between genetically distinct seabird populations. Nature Communications 2: 332, DOI: 10.1038/ncomms1330.

 

Verrier, D., Guinet, C., Authier, M., Tremblay, Y., Shaffer, S.A., Costa, D.P., Groscolas, R., Arnould, J.P.Y. (2011) The ontogeny of diving abilities in subantarctic fur seal (Arctocephalus tropicalis) pups: developmental trade-off in response to extreme fasting? Functional Ecology 25: 818-828, DOI: 10.1111/j.1365-2435.2011.01846.x.

 

Žydelis, R, Lewison, R.L., Shaffer, S.A., Moore, J.E., Boustany, A.M., Roberts, J.J., Sims, M., Dunn, D.C., Best, B.D., Tremblay, Y., Kappes, M.A., Costa, D.C., Crowder, L.D. (2011) Dynamic habitat models: Using telemetry data to understand fisheries bycatch. Proceedings of the Royal Society of London B 278: 3191-3200, DOI:10.1098/rspb.2011.0330.

 

Shaffer, S.A. (2011) A review of seabird energetics using the doubly labeled water method. Comparative Biochemistry and Physiology 158: 315-322.

2010

Young, H.S., McCauley, D.J., Dirzo, R., Dunbar, R.D. and Shaffer, S.A. (2010) Niche partitioning among and within sympatric tropical seabirds revealed by stable isotope analysis. Marine Ecology Progress Series 416: 285-294.

 

Raymond,B., Shaffer, S.A., Sokolov, S., Woehler, E., Costa, D.P., Einoder, L., Hindell, M., Hosie, G., Pinkerton, M., Sagar, P.M., Scott, D., Smith, A., Thompson, D.R., Vertigan, C., Weimerskirch, H. (2010) Winds and prey availability determine shearwater foraging distribution in the Southern Ocean. PLoS ONE 5: e10960, (pp. 1-14).

 

Kappes, M.A., Shaffer, S.A., Tremblay, Y., Foley, D.G., Palacios, D.M., Robinson, P.W., Bograd, S.J., and Costa, D.P. (2010) Hawaiian albatrosses track interannual variability of marine habitats in the North Pacific. Progress in Oceanography 86: 246-260.

 

Young, H.S., Shaffer, S.A., McCauley, D.J., Foley, D.G., Dirzo, R. and Block, B.A. (2010) Resource partitioning by sympatric boobies in the Central Pacific Ocean. Marine Ecology Progress Series 403: 291-301.

2009

Young, L.C., Vanderlip, C., Duffy, D.C., Afanasyev, V. and Shaffer, S.A. (2009) Bringing home the trash: do differences in foraging lead to increased plastic ingestion in Laysan Albatrosses? PLoS ONE 4: e7624, (pp. 1-9).

 

González-Solís, J. and Shaffer, S.A. (2009) Introduction and synthesis: spatial ecology of seabirds at sea. Marine Ecology Progress Series 391: 117-120.

 

Tremblay, Y. Sophie, B., Henry, R.W., Kappes, M.A., Costa, D.P., and Shaffer, S.A. (2009). Analytical Approaches to Investigate Seabird-Environment Interactions: a review. Marine Ecology Progress Series 391: 153-163.

 

Shaffer, S.A., Weimerskirch, H., Scott, D., Pinaud, D., Thompson, D.R., Sagar, P.M., Moller, H., Taylor, G.A., Foley, D.G., Tremblay, Y., and Costa, D.P. (2009) Spatio-temporal habitat use by breeding sooty shearwaters (Puffinus griseus). Marine Ecology Progress Series 391: 209-220.

 

Weimerskirch, H., Shaffer, S.A., Tremblay, Y., Costa, D.P., Gadenne, H., Kato, A., Ropert-Coudert, Y., Sato, K., Aurioles, D. (2009) Species and sex specific differences in foraging behaviour and foraging zones in two sympatric boobies. Marine Ecology Progress Series 391: 267-278.

 

Adams, J., Scott, D., McKechnie, S., Blackwell, G.,Shaffer, S.A., and H. Moller (2009) Effects of geolocation archival tags on reproduction and adult body mass of Sooty Shearwater (Puffinus griseus). New Zealand Journal of Zoology 36: 355-366.

2008

Costa, D.P. and Shaffer, S.A. (2008) Physiological constraints on the foraging ecology and energetics of albatrosses and other large seabirds. 4th CPB Meeting in Africa: Mara 2008. Molecules to Migration: The pressures of life (Eds S. Morris & A. Vosloo). Medimond Publishing Co. via Maserati, 40124 Bologna Italy. Pages 497-506.

 

Suryan, R.M., Anderson, D.J., Shaffer, S.A., Roby, D.D., Tremblay, Y., Costa, D.P., Sato, F., and Ozaki, K. (2008) Wind, waves, and wing loading: Their relative importance to the at-sea distribution and movements of North and Central Pacific albatrosses. PLoS ONE 3(12): e4016, (pp. 1-8).

 

Burger, A.E. and Shaffer S.A. (2008) Perspectives in Ornithology: Application of tracking and data-logging technology in research and conservation of seabirds. Auk 125(2): 253-264.

2007

Robinson, P.W., Tremblay, Y., Antolos, M., Crocker, D.E., Kuhn, C.E., Shaffer S. A., Simmons, S., and Costa, D.P. (2007) A comparison of ARGOS-tracking-based indirect measures of foraging behavior. Deep-Sea Research II 54: 356-368.

 

Angelier, F., Shaffer, S.A., Weimerskirch, H., Trouvé, C. and Chastel, O. (2007) Corticosterone and foraging behaviour in a pelagic seabird. Physiological and Biochemical Zoology 80: 283-292.

2006

Shaffer, S. A., Tremblay, Y., Weimerskirch, H., Scott, D., Thompson, D.R., Sagar, P.M., Moller, H., Taylor, G.A., Foley, D.G., Block, B.A., and Costa, D.P. (2006) Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer. Proceedings of the National Academy of Sciences USA 103: 12799-12802.

 

Angelier, F., Shaffer, S.A., Weimerskirch, H., and Chastel, O. (2006) Effect of age, breeding experience and senescence on corticosterone and prolactin levels in a long-lived seabird: the wandering albatross. General and Comparative Endocrinology149: 1-9.

 

Shaffer, S.A., Gabrielsen, G.W., Verreault, J. and Costa, D.P. (2006) Validation of water flux and body composition in Glaucous gulls (Larus hyperboreus). Physiological and Biochemical Zoology 79: 836-845.

 

Shaffer, S.A. and Costa, D.P. (2006) A database for the study of marine mammal behavior: Gap analysis, data standardization, and future directions. IEEE Journal of Oceanic Engineering 31 (1): 82-86.

 

Tremblay, Y., Shaffer, S.A., Fowler, S.L., Kuhn, C.E., McDonald, B.I., Weise, M.J., Bost, C.-A., Weimerskirch, H., Crocker, D.E., Goebel, M. E., Costa, D. P. (2006) Interpolation of tracking data in a fluid environment. Journal of Experimental Biology 209: 128-140.

 

Kuhn, C.E., McDonald, B.I., Shaffer, S.A., Costa, D.P., Barnes, J., Crocker, D.E., and Burns, J. (2006) Diving Physiology and Winter Foraging Behavior of a Juvenile Leopard Seal (Hydrurga leptonyx). Polar Biology 29: 303-307.

2005-1997

Shaffer, S.A., Tremblay, Y., Awkerman, J., Henry, W.R., Teo, S.L.H., Anderson D.J., Croll, D.A., Block, B.A., and Costa, D.P. (2005) Comparison of light- and SST-based geolocation with satellite telemetry in free-ranging albatrosses. Marine Biology 147: 833-843.

 

Costa, D.P., Kuhn, C.E., Weise, M.J., Shaffer, S.A., and Arnould, J.P.Y. (2004) When does physiology limit the foraging behaviour of freely diving mammals? In: Animals and Environments (Morris S. and Vosloo A. eds). Proceedings of the Third International Conference of Comparative Physiology and Biochemistry 1275C: 359-366.

 

Shaffer, S.A., Costa, D.P., and Weimerskirch, H. (2004) Field metabolic rates of black-browed albatrosses Thalassarche melanophrys during the incubation stage. Journal of Avian Biology 35: 551-558.

 

Shaffer, S.A. (2004) Annual energy budget and food requirements of breeding Wandering Albatrosses (Diomedea exulans).Polar Biology 27: 253-256.

 

Mabille, G., Boutard, O., Shaffer, S.A., Costa, D.P., and Weimerskirch H. (2004) Patterns of growth and energy expenditure in wandering albatross chicks. Ibis 146: 85-94.

 

Arnould, J.P.Y., Luque, S.P., Guinet, C., Costa, D.P., Kingston, J., and Shaffer, S.A. (2003) The comparative energetics and growth strategies of sympatric Antarctic and sub Antarctic fur seal pups, at Iles Crozet. Journal of Experimental Biology 206: 4497-4506.

 

Shaffer, S.A., Costa, D.P., and Weimerskirch, H. (2003) Foraging effort in relation to the constraints of reproduction in free-ranging albatrosses. Functional Ecology 17: 66-74.

 

Weimerskirch, H., Shaffer, S.A., Mabille, G., Martin, J., Boutard, O., Rouanet, J.-L. (2002) Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance. Journal of Experimental Biology 205(4): 475-483. (Including Cover Photo).

 

Shaffer, S.A., Costa, D.P., and Weimerskirch, H. (2001) A comparison of methods to evaluate energy expenditure of incubating wandering albatrosses. Physiological and Biochemical Zoology 74(6): 823-831.

 

Shaffer, S.A., Costa, D.P., and Weimerskirch, H. (2001) Behavioural factors affecting foraging effort in breeding wandering albatrosses. Journal of Animal Ecology 70: 864-874. (Elton Prize winner).

 

Shaffer, S.A., Weimerskirch, H., and Costa, D.P. (2001) Functional significance of sexual dimorphism in wandering albatrosses, Diomedea exulans. Functional Ecology 15: 203-210. (Including Cover Photo).

 

Weimerskirch, H., Guionnet, T., Martin, J., Shaffer, S.A., and Costa, D.P. (2000) Fast and fuel-efficient? Optimal use of wind by flying albatrosses. Proceedings of the Royal Society of London B 267: 1869-1874.

 

Shaffer, S.A., Costa, D.P., Williams, T.M., and Ridgway, S.H. (1997) Diving and swimming performance of white whales, Delphinapterus leucas: An assessment of plasma lactate and blood gas levels and respiratory rates. Journal of Experimental Biology 200: 3091-3099. (Including Cover Photo).