Ainley, D. G., Morandini, V., Salas, L., Nur, N., Rotella, J., Barton, K., Lyver, P. O., Goetz, K. T., Larue, M., Foster-Dyer, R., Parkinson, C. L., Arrigo, K. R., Van Dijken, G., Beltran, R. S., Kim, S., Brooks, C., Kooyman, G., Ponganis, P. J., Shanhun, F., & Anderson, D. P. (2024). Response of indicator species to changes in food web and ocean dynamics of the Ross Sea, Antarctica. Antarctic Science, 1–29. https://doi.org/10.1017/S0954102024000191

LaRue, M., Iles, D., Labrousse, S., Fretwell, P., Ortega, D., Devane, E., Horstmann, I., Viollat, L., Foster-Dyer, R., Le Bohec, C., Zitterbart, D., Houstin, A., Richter, S., Winterl, A., Wienecke, B., Salas, L., Nixon, M., Barbraud, C., Kooyman, G., … Jenouvrier, S. (2024). Advances in remote sensing of emperor penguins: first multi-year time series documenting trends in the global population. Proceedings of the Royal Society B: Biological Sciences, 291(2018), 20232067. https://doi.org/10.1098/rspb.2023.2067

Kooyman, G. L., Goetz, K., Williams, C. L., Ponganis, P. J., Sato, K., Eckert, S., Horning, M., Thorson, R. T., & Van Dam, R. R. (2020). Crary bank: a deep foraging habitat for emperor penguins in the western Ross Sea. Polar Biology, 43(7), 801–811. https://doi.org/10.1007/s00300-020-02686-3

Hindell, M. A., Reisinger, R. R., Ropert-Coudert, Y., Huckstadt, L. A., Trathan, P. N., Bornemann, H., Charrassin, J. B., Chown, S. L., Costa, D. P., Danis, B., Lea, M. A., Thompson, D., Torres, L. G., Van de Putte, A. P., Alderman, R., Andrews-Goff, V., Arthur, B., Ballard, G., Bengtson, J., … Raymond, B. (2020). Tracking of marine predators to protect Southern Ocean ecosystems. Nature. https://doi.org/10.1038/s41586-020-2126-y

Ropert-Coudert, Y., Van de Putte, A. P., Reisinger, R. R., Bornemann, H., Charrassin, J. B., Costa, D. P., Danis, B., Huckstadt, L. A., Jonsen, I. D., Lea, M. A., Thompson, D., Torres, L. G., Trathan, P. N., Wotherspoon, S., Ainley, D. G., Alderman, R., Andrews-Goff, V., Arthur, B., Ballard, G., … Hindell, M. A. (2020). The retrospective analysis of Antarctic tracking data project. Scientific Data, 7(1). https://doi.org/10.1038/s41597-020-0406-x

Kooyman, G. L., McDonald, B. I., Williams, C. L., Meir, J. U., & Ponganis, P. J. (2020). The aerobic dive limit: After 40 years, still rarely measured but commonly used. Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology, 252. https://doi.org/10.1016/j.cbpa.2020.110841

Morandini, V., Dugger, K. M., Ballard, G., Elrod, M., Schmidt, A., Ruoppolo, V., Lescroel, A., Jongsomjit, D., Massaro, M., Pennycook, J., Kooyman, G. L., Schmidlin, K., Kraberger, S., Ainley, D. G., & Varsani, A. (2019). Identification of a novel Adelie penguin circovirus at Cape Crozier (Ross Island, Antarctica). Viruses-Basel, 11(12). https://doi.org/10.3390/v11121088

Goetz, K. T., McDonald, B. I., & Kooyman, G. L. (2018). Habitat preference and dive behavior of non-breeding emperor penguins in the eastern Ross Sea, Antarctica. Marine Ecology Progress Series, 593, 155–171. https://doi.org/10.3354/meps12486

Kooyman, G. L., van Dam, R. P., & Huckstadt, L. A. (2018). Night diving by some emperor penguins during the winter breeding period at Cape Washington. Journal of Experimental Biology, 221(1). https://doi.org/10.1242/jeb.170795

Kooyman, G. L., & Ponganis, P. J. (2017). Rise and fall of Ross Sea emperor penguin colony populations: 2000 to 2012. Antarctic Science, 29(3), 201–208. https://doi.org/10.1017/s0954102016000559

Hays, G. C., Ferreira, L. C., Sequeira, A. M. M., Meekan, M. G., Duarte, C. M., Bailey, H., Bailleul, F., Don Bowen, W., Caley, M. J., Costa, D. P., Eguiluz, V. M., Fossette, S., Friedlaender, A. S., Gales, N., Gleiss, A. C., Gunn, J., Harcourt, R., Hazen, E. L., Heithaus, M. R., … Thums, M. (2016). Key questions in marine megafauna movement ecology. Trends in Ecology & Evolution, 31(6), 463–475. https://doi.org/10.1016/j.tree.2016.02.015

Williams, C. L., Hagelin, J. C., & Kooyman, G. L. (2015). Hidden keys to survival: the type, density, pattern and functional role of emperor penguin body feathers. Proceedings of the Royal Society B-Biological Sciences, 282(1817). https://doi.org/10.1098/rspb.2015.2033

Younger, J. L., Clucas, G. V., Kooyman, G., Wienecke, B., Rogers, A. D., Trathan, P. N., Hart, T., & Miller, K. J. (2015). Too much of a good thing: sea ice extent may have forced emperor penguins into refugia during the last glacial maximum. Global Change Biology, 21(6), 2215–2226. https://doi.org/10.1111/gcb.12882

Larue, M. A., Kooyman, G., Lynch, H. J., & Fretwell, P. (2015). Emigration in emperor penguins: implications for interpretation of long-term studies. Ecography, 38(2), 114–120. https://doi.org/10.1111/ecog.00990

Kooyman, G. (2015). Marine mammals and Emperor penguins: a few applications of the Krogh principle. American Journal of Physiology-Regulatory Integrative and Comparative Physiology, 308(2), R96–R104. https://doi.org/10.1152/ajpregu.00264.2014

Gearheart, G., Kooyman, G. L., Goetz, K. T., & McDonald, B. I. (2014). Migration front of post-moult emperor penguins. Polar Biology, 37(3), 435–439. https://doi.org/10.1007/s00300-014-1449-2

Kooyman, G. L., & Ponganis, P. J. (2014). Chick production at the largest emperor penguin colony decreases by 50% from 2008-10. Antarctic Science, 26(1), 33–37. https://doi.org/10.1017/s0954102013000515

Fretwell, P. T., Trathan, P. N., Wienecke, B., & Kooyman, G. L. (2014). Emperor penguins breeding on iceshelves. PLOS ONE, 9(1). https://doi.org/10.1371/journal.pone.0085285

Meir, J. U., Robinson, P. W., Vilchis, L. I., Kooyman, G. L., Costa, D. P., & Ponganis, P. J. (2013). Blood oxygen depletion is independent of dive function in a deep diving vertebrate, the northern elephant seal. PLOS ONE, 8(12). https://doi.org/10.1371/journal.pone.0083248

Fretwell, P. T., LaRue, M. A., Morin, P., Kooyman, G. L., Wienecke, B., Ratcliffe, N., Fox, A. J., Fleming, A. H., Porter, C., & Trathan, P. N. (2012). An Emperor Penguin Population Estimate: The First Global, Synoptic Survey of a Species from Space. PLOS ONE, 7(4). https://doi.org/10.1371/journal.pone.0033751

Sato, K., Shiomi, K., Marshall, G., Kooyman, G. L., & Ponganis, P. J. (2011). Stroke rates and diving air volumes of emperor penguins: implications for dive performance. Journal of Experimental Biology, 214(17), 2854–2863. https://doi.org/10.1242/jeb.055723

Blight, L. K., Ainley, D. G., Ackley, S. F., Ballard, G., Ballerini, T., Brownell, R. L., Cheng, C. H. C., Chiantore, M., Costa, D., Coulter, M. C., Dayton, P., Devries, A. L., Dunbar, R., Earle, S., Eastman, J. T., Emslie, S. D., Evans, C. W., Garrott, R. A., Kim, S., … Woehler, E. J. (2010). Fishing for data in the Ross Sea. Science, 330(6009), 1316–1316. https://doi.org/10.1126/science.330.6009.1316

Ainley, D., Russell, J., Jenouvrier, S., Woehler, E., Lyver, P. O., Fraser, W. R., & Kooyman, G. L. (2010). Antarctic penguin response to habitat change as Earth’s troposphere reaches 2 degrees C above preindustrial levels. Ecological Monographs, 80(1), 49–66. https://doi.org/10.1890/08-2289.1

Barber-Meyer, S. M., Kooyman, G. L., & Ponganis, P. J. (2008). Trends in western Ross Sea emperor penguin chick abundances and their relationships to climate. Antarctic Science, 20(1), 3–11. https://doi.org/10.1017/s0954102007000673

Barber-Meyer, S. M., Kooyman, G. L., & Ponganis, P. J. (2007). Estimating the relative abundance of emperor penguins at inaccessible colonies using satellite imagery. Polar Biology, 30(12), 1565–1570. https://doi.org/10.1007/s00300-007-0317-8

Kooyman, G. L., Ainley, D. G., Ballard, G., & Ponganis, P. J. (2007). Effects of giant icebergs on two emperor penguin colonies in the Ross Sea, Antarctica. Antarctic Science, 19(1), 31–38. https://doi.org/10.1017/s0954102007000065

Kooyman, G. L. (2006). Mysteries of adaptation to hypoxia and pressure in marine mammals - The kenneth S. Norris lifetime achievement award lecture - Presented on 12 December 2005 - San Diego, California. Marine Mammal Science, 22(3), 507–526. https://doi.org/10.1111/j.1748-7692.2006.00069.x

Van Dam, R. P., & Kooyman, G. L. (2004). Latitudinal distribution of penguins, seals and whales observed during a late autumn transect through the Ross Sea. Antarctic Science, 16(3), 313–318. https://doi.org/10.1017/s0954102004002123

Kooyman, G. L., & Ponganis, P. J. (2004). The icing of external recorders during the polar winter. Memoirs of National Institute of Polar Research Special Issue, 58, 183–187.

Kooyman, G. L., Siniff, D. B., Stirling, I., & Bengtson, J. L. (2004). Moult habitat, pre- and post-moult diet and post-moult travel of Ross Sea emperor penguins. Marine Ecology-Progress Series, 267, 281–290. https://doi.org/10.3354/meps267281

Dolar, M. L. L., Walker, W. A., Kooyman, G. L., & Perrin, W. F. (2003). Comparative feeding ecology of spinner dolphins (Stenella longirostris) and Fraser’s dolphins (Lagenodelphis hosei) in the Sulu Sea. Marine Mammal Science, 19(1), 1–19. https://doi.org/10.1111/j.1748-7692.2003.tb01089.x

Eckert, S. A., Dolar, L. L., Kooyman, G. L., Perrin, W., & Rahman, R. A. (2002). Movements of whale sharks (Rhincodon typus) in South-east Asian waters as determined by satellite telemetry. Journal of Zoology, 257, 111–115. https://doi.org/10.1017/s0952836902000705

Kooyman, G. L. (2002). Evolutionary and ecological aspects of some Antarctic and sub-Antarctic penguin distributions. Oecologia, 130(4), 485–495. https://doi.org/10.1007/s00442-001-0836-x

Jobsis, P. D., Ponganis, P. J., & Kooyman, G. L. (2001). Effects of training on forced submersion responses in harbor seals. Journal of Experimental Biology, 204(22), 3877–3885.

Nagy, K. A., Kooyman, G. L., & Ponganis, P. J. (2001). Energetic cost of foraging in free-diving emperor penguins. Physiological and Biochemical Zoology, 74(4), 541–547. https://doi.org/10.1086/322165

Trillmich, F., & Kooyman, G. L. (2001). Field metabolic rate of lactating female Galapagos fur seals (Arctocephalus galapagoenis): the influence of offspring age and environment. Comparative Biochemistry and Physiology A-Molecular and Integrative Physiology, 129(4), 741–749. https://doi.org/10.1016/s1095-6433(01)00343-9

Burns, J. M., & Kooyman, G. L. (2001). Habitat use by Weddell seals and emperor penguins foraging in the Ross Sea, Antarctica. American Zoologist, 41(1), 90–98. https://doi.org/10.1668/0003-1569(2001)041[0090:hubwsa]2.0.co;2

Ancel, A., Starke, L. N., Ponganis, P. J., Van Dam, R., & Kooyman, G. L. (2000). Energetics of surface swimming in Brandt’s cormorants (Phalacrocorax penicillatus Brandt). Journal of Experimental Biology, 203(24), 3727–3731.

Ponganis, P. J., & Kooyman, G. L. (2000). Diving physiology of birds: a history of studies on polar species. Comparative Biochemistry and Physiology A-Molecular and Integrative Physiology, 126(2), 143–151. https://doi.org/10.1016/s1095-6433(00)00208-7

Kooyman, G. L., Hunke, E. C., Ackley, S. E., van Dam, R. P., & Robertson, G. (2000). Moult of the emperor penguin: travel, location, and habitat selection. Marine Ecology-Progress Series, 204, 269–277. https://doi.org/10.3354/meps204269

Ponganis, P. J., Kooyman, G. L., Van Dam, R., & LeMaho, Y. (1999). Physiological responses of king penguins during simulated diving to 136 m depth. Journal of Experimental Biology, 202(20), 2819–2822.

Ponganis, P. J., & Kooyman, G. L. (1999). Heart rate and electrocardiogram characteristics of a young California gray whale (Eschrichtius robustus). Marine Mammal Science, 15(4), 1198–1207. https://doi.org/10.1111/j.1748-7692.1999.tb00885.x

Ponganis, P. J., Starke, L. N., Horning, M., & Kooyman, G. L. (1999). Development of diving capacity in emperor penguins. Journal of Experimental Biology, 202(7), 781–786.

Dolar, M. L. L., Suarez, P., Ponganis, P. J., & Kooyman, G. L. (1999). Myoglobin in pelagic small cetaceans. Journal of Experimental Biology, 202(3), 227–236.

Cherel, Y., & Kooyman, G. L. (1998). Food of emperor penguins (Aptenodytes forsteri) in the western Ross Sea, Antarctica. Marine Biology, 130(3), 335–344. https://doi.org/10.1007/s002270050253

Kooyman, G. L., & Ponganis, P. J. (1998). The physiological basis of diving to depth: Birds and mammals. Annual Review of Physiology, 60, 19–32. https://doi.org/10.1146/annurev.physiol.60.1.19

Kooyman, G. L., & Ponganis, P. J. (1997). The challenges of diving to depth. American Scientist, 85(6), 530–539.

Ponganis, P. J., Kooyman, G. L., Baranov, E. A., Thorson, P. H., & Stewart, B. S. (1997). The aerobic submersion limit of Baikal seals, Phoca sibirica. Canadian Journal of Zoology-Revue Canadienne De Zoologie, 75(8), 1323–1327. https://doi.org/10.1139/z97-756

Ponganis, P. J., Costello, M. L., Starke, L. N., MathieuCostello, O., & Kooyman, G. L. (1997). Structural and biochemical characteristics of locomotory muscles of emperor penguins, Aptenodytes forsteri. Respiration Physiology, 109(1), 73–80. https://doi.org/10.1016/s0034-5687(97)84031-5

Ponganis, P. J., Kooyman, G. L., Starke, L. N., Kooyman, C. A., & Kooyman, T. G. (1997). Post-dive blood lactate concentrations in emperor penguins, Aptenodytes forsteri. Journal of Experimental Biology, 200(11), 1623–1626.