Publications

(# indicates student author, † indicates postdoc author)

Robinson RS, Smart SM, ^†Cybulski JD, McMahon KW, ^#Marcks B, ^#Nowakowski C (in press) Insights from fossil-bound nitrogen isotopes in diatoms, foraminifera, and corals. Annual Review of Marine Science

^#Kristan AK, Kanchan M, McMahon KW, Dance MA, Polito MJ (in press) Biological and geochemical proxies in sediment cores reveal shifts in marine predator population dynamics relative to historic anthropogenic exploitation and recent climate change at South Georgia Island. Polar Biology

^†Ramirez M, ^#Besser A, Newsome SD, McMahon KW (2021) Meta-analysis of primary producer amino acid δ15N values and their influence on trophic position estimation. Methods in Ecology and Evolution 12:1750-1767 (Cover of Issue 10)

McMahon KW, Ambrose Jr. WG, Reynolds MJ, Johnson BJ, Whiting A, Clough LM (2021) Arctic lagoon and nearshore food webs: Relative contributions of terrestrial organic matter, phytoplankton, and phytobenthos vary with consumer foraging dynamics. Estuarine, Coastal and Shelf Science 257:107388

McMahon KW, ^#Michelson CI, Hart T, McCarthy MD, Patterson WP, Polito MJ (2019) Divergent trophic responses of sympatric penguin species to historic anthropogenic exploitation and recent climate change. Proceedings of the National Academy of Sciences 116:2

^#MacDonald C, Bridge TC, McMahon KW, Jones GP (2019) Alternative dietary strategies and altered carbon pathways facilitate broad depth ranges in coral-obligate reef fishes. Functional Ecology 33:1962-1972

^#Glynn DS, McMahon KW, Guilderson TP, McCarthy MD (2019) Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records. Earth and Planetary Science Letters 515:145-153

^#Brault EK, Koch PL, Costa DP, McCarthy MD, Huckstadt LA, Goetz K, McMahon KW, Goeble ME, Karlsson O, Teilmann J, Harkonen T, Harding K (2019) Trophic position and foraging ecology of Ross, Weddell, and Crabeater seals revealed by compound-specific isotope analysis. Marine Ecology Progress Series 611:1-18 (Feature article)

Hobson KA, Wassenaar L, Bowen G, Courtiol A, Trueman CN, Voight C, West J, McMahon KW, Newsome S (2019). Outlook for using stable isotopes in animal migration studies. In: Tracking Animal Migration with Stable Isotopes 2nd Edition (eds. Hobson KA, Wassenaar L) Elsevier, Burlington MA

McMahon KW, Newsome S (2019). Amino acid isotope analysis: The next frontier in studies of animal migration and foraging ecology. In: Tracking Animal Migration with Stable Isotopes 2nd Edition (eds. Hobson KA, Wassenaar L) Elsevier, Burlington MA

Williams B, McMahon KW, ^#Barnes S, ^#Parks D, ^#Kim E, ^#Srebotnjak T, Etnoyer P (2018) Impact of skeletal heterogeneity and treatment method on interpretation of environmental variability from proteinaceous skeletons of deep-sea gorgonian octocorals. Chemical Geology DOI:10.1016/j.chemgeo.2017.12.019

^#Brault EK, Koch PL, McMahon KW, ^#Broach K, ^#Rosenfield AP, ^#Sauthoff W, Arrigo KR, Loeb V, Smith W (2018) Carbon and nitrogen isoscapes in Western Antarctica reflect oceanographic transitions. Marine Ecology Progress Series 593:29-45.

McMahon KW, Williams B, Guilderson TP, ^#Glynn DS, McCarthy MD (2018) Calibrating amino acid d¹³C and d¹⁵N offsets between polyp and protein skeleton to develop proteinaceous deep-sea corals as paleoceanographic archives. Geochimica et Cosmochimica Acta 220: 261-275 DOI:10.1016/j.gca.2017.09.048

Ohkouchi N, Chikaraishi Y, Close HG, Fry B, Larsen T, Madigan DJ, McCarthy MD, McMahon KW, Nagata T, Naito YI, Ogawa NO, Popp BN, Steffan S, Takano Y, Tayasu I, Wyatt ASJ, Yamaguchi YT, Yokoyama Y (2017) Advances in the application of amino acid nitrogen isotopic analysis in ecological and biogeochemical studies. Organic Geochemistry DOI: 10.1016/j.orggeochem.2017.07.009 (authors in alphabetical order after first)

McMahon KW, McCarthy MD (2016) Embracing variability in amino acid d¹⁵N fractionation: Mechanisms, implications, and applications for trophic ecology. Ecosphere 7:e01511 (Special issue on Biomarkers in Trophic Ecology)

McMahon KW, Thorrold SR, Houghton LA, Berumen ML (2016) Tracing carbon flow through coral reef food webs using a compound-specific carbon isotope approach. Oecologia 180:809-821 (Cover of Issue)

McMahon KW, Guilderson TP, Sherwood OA, Larsen T, McCarthy MD (2015) Millennial-scale plankton regime shifts in the subtropical North Pacific Ocean. Science 350:1530-1533

McMahon KW, Elsdon T, Thorrold SR, McCarthy M (2015). Trophic discrimination of nitrogen stable isotopes in amino acids varies with diet quality in a marine fish. Limnology and Oceanography 60:1076-1087

McMahon KW, Polito M, Abel S, McCarthy MD, Thorrold SR (2015) Carbon and nitrogen isotope fractionation of amino acids in an avian marine predator, the gentoo penguin (Pygoscelis papua). Ecology and Evolution 5:1278-1290

^#Schiff JT, Batista F, Sherwood OA, Guilderson TP, Hill TM, Ravelo AC, McMahon KW, McCarthy MD (2014) Compound specific amino acid d¹³C patterns in a deep-sea proteinaceous coral: implications for reconstructing detailed d¹³C records of exported primary production. Marine Chemistry 166:82-91

McMahon KW, ^#Hamady L, Thorrold SR (2013) Ocean ecogeochemistry – A review. Oceanography and Marine Biology: An Annual Review 51:327-374

McMahon KW, ^#Hamady L, Thorrold SR (2013) A review of ecogeochemistry approaches to estimating movements of marine animals. Limnology and Oceanography 58:697-714

McMahon KW, Berumen ML, Thorrold SR (2012) Linking habitat mosaics and connectivity in a coral reef seascape. Proceedings of the National Academy of Science 109:15372-15376

McMahon KW, Berumen ML, Mateo I, Elsdon TS, Thorrold SR (2011) Carbon isotopes in otolith amino acids identify residency of juvenile snapper (Family: Lutjanidae) in coastal nurseries. Coral Reefs 30:1135-1145 (2011 Best Paper Award finalist)

McMahon KW, Fogel ML, Johnson BJ, Houghton LA, Thorrold SR (2011) A new method to reconstruct fish diet and movement patterns from d¹³C values in otolith amino acids. Canadian Journal of Fisheries and Aquatic Sciences 68:1330-1340

McMahon KW, Fogel ML, Elsdon T, Thorrold SR (2010) Carbon isotope fractionation of amino acids in fish muscle reflects biosynthesis and isotopic routing from dietary protein. Journal of Animal Ecology 79:1132-1141

Elsdon T, Ayvazian S, McMahon KW, Thorrold SR (2010) Experimental evaluation of stable isotope fractionation in fish muscle and otoliths. Marine Ecology Progress Series 408:195-205

Graham BS, Koch PL, Newsome SD, McMahon KW, and Aurioles D (2010) Using isoscapes to trace the movements and foraging behavior of top predators in oceanic ecosystems. In Isoscapes: Understanding Movement, Pattern and Process on Earth Through Isotope Mapping (eds. J. West, G. J. Bowen, T. E. Dawson, K. P. Tu). pp. 299-318, Springer, New York

Skomal GB, Zeeman SI, Chisholm JH, Summers EL, Walsh HJ, McMahon KW, Thorrold SR. (2009) Mesopelagic trans-equatorial migrations by basking sharks in the western Atlantic Ocean. Current Biology 19:1019-1022 (Cover of Issue)

Carroll M, Johnson B, Henkes G, McMahon KW, Voronkov A, Ambrose W, Denisenko S. (2009). Bivalves as indicators of environmental variation and potential anthropogenic impacts in the southern Barents Sea. Marine Pollution Bulletin 59:193-206

Ambrose WG, Carroll ML, Greenacre M, Thorrold SR, McMahon KW. (2006) Variation in bivalve growth in a Norwegian high-Arctic fjord: Evidence for local- and large-scale climatic forcing. Global Change Biology 12:1595-1607

McMahon KW, Ambrose WG, Johnson BJ, Sun M-Y, Lopez GR, Clough LM, Carroll ML (2006) Benthic community response to ice algae and phytoplankton in Ny Ålesund, Svalbard. Marine Ecology Progress Series 310:1-14 (Issue’s feature article)

McMahon KW, Johnson BJ, Ambrose WG. (2005). Diet and movement of the killifish, Fundulus heteroclitus, in a Maine salt marsh assessed using gut contents and stable isotope analyses. Estuaries228:966-973