P. L. Koch Research

1. Publications

2. Technical Reports, Book Reviews, Popular Articles




1. Koch PL (1986) Clinal geographic variation in mammals: implications for the study of chronoclines. Paleobiology 12: 269-281 [pdf]

2. Koch PL, Fisher DC, Dettman DL (1989) Oxygen isotopes variations in the tusks of extinct proboscideans: a measure of season-of-death and seasonality. Geology 17: 515-51 [pdf]

3. Koch PL, Halliday AN, Walter LM, Stearley RF, Huston TJ, Smith GR (1992) Sr isotopic composition of hydroxyapatite from recent and fossil salmon: the record of lifetime migration and diagenesis. Earth and Planetary Science Letters 108: 277-287 [pdf]

4. Koch PL, Zachos JC, Gingerich PD (1992) Correlation between isotope records in marine and continental carbon reservoirs near the Palaeocene/Eocene boundary. Nature 358: 319-322 [pdf]

5. Koch PL, Fogel ML, Tuross N (1994) Tracing the diets of fossil animals using stable isotopes. In: Lajtha K, Michener B (eds.) Stable Isotopes in Ecology and Environmental Science. Blackwell Scientific Publication, Boston, pp 63-92 [pdf]

6. Koch PL, Heisinger JE, Moss C, Carlson RW, Fogel ML, Behrensmeyer AK (1995) Isotopic tracking of change in diet and habitat use in African elephants. Science 267: 1340-1343 [pdf]

7. Koch PL, Zachos JC, Dettman DL (1995) Stable isotope stratigraphy and paleoclimatology of the Paleogene Bighorn Basin, (Wyoming, U.S.A.). Palaeogeography, Palaeoclimatology, Palaeoecology 115: 61-89 [pdf]

8. Bocherens H, Koch PL, Mariotti A, Geraads D, Jaeger J-J (1996) Isotopic biogeochemistry (13C, 18O) of mammalian enamel from African Pleistocene hominid sites. Palaios 11: 306-318 [pdf]

9. Bryant JD, Koch PL, Froelich PN, Showers WJ, Genna BJ (1996) Oxygen isotope partitioning between phosphate and carbonate in mammalian apatite. Geochimica et Cosmochimica Acta 60: 5145-5148 [pdf]

10. Koch PL, Tuross N, Fogel ML (1997) The effects of sample treatment and diagenesis on the isotopic integrity of carbonate in biogenic hydroxylapatite. Journal of Archaeological Sciences 24: 417-429 [pdf]

11. Bao H, Koch PL, Hepple R (1998) Hematite and calcite coatings on fossil vertebrates. Journal of Sedimentary Research, A 68: 727-738 [pdf]

12. Gannes LZ, Martìnez del Rio C, Koch P (1998) Natural abundance variations in stable isotopes and their potential in animal physiological ecology. Comparative Biochemistry and Physiology 119A: 725-737 [pdf]

13. Koch PL (1998) Isotopic reconstruction of past continental environments. Annual Review of Earth and Planetary Science 26: 573-613 [pdf]

14. Koch PL, Hoppe KA, Webb SD (1998) The isotopic ecology of late Pleistocene mammals in North America, Part 1: Florida. Chemical Geology 152: 119-138 [pdf]

15.  Bao H, Koch PL (1999) Oxygen isotope fractionation in ferric oxide-water systems. Low temperature synthesis. Geochimica et Cosmochimica Acta 63: 599-613 [pdf]

16. Bao H, Koch PL, Rumble D. III (1999) Paleocene/Eocene climatic variations in western North America: evidence from the d18O of pedogenic hematite. Geological Society of America Bulletin 111: 1405-1415 [pdf]

17. Burton RK, Koch PL (1999) Isotopic tracking of foraging and long distance migration in northeastern Pacific pinnipeds. Oecologia 119: 578-585 [pdf]

18. Hoppe KA, Koch PL, Carlson R, Webb SD (1999) Tracking mammoths and mastodons: reconstruction of migratory behavior using strontium isotopes. Geology 27: 439-442 [pdf]

19. Alroy J, Koch PL, Zachos JC (2000) Global climate change and North American mammalian evolution. Paleobiology, Supplement to Volume 26: 259-288 [pdf]

20. Bao H, Koch PL, Thiemens MH (2000) Oxygen isotopes in ferric oxides from recent soil, hydrologic, and marine environments. Geochimica et Cosmochimica Acta 64: 2221-2231 [pdf]

21. MacLeod KG, Smith RMH, Koch PL, Ward PD (2000) Timing of mammal-like reptile extinctions across the P/T boundary in South Africa. Geology 28: 227-230 [pdf]

22. Wing SL, Bao H, Koch PL (2000) An early Eocene cool period? Evidence for continental cooling during the warmest part of the Cenozoic. In: Huber BT, MacLeod KG, Wing SL (eds), Warm Climate in Earth History. Cambridge University Press, Cambridge, UK, pp 197-237 [pdf]

23. Bowen GJ, Koch PL, Gingerich PD, Norris RD, Corfield RM, Bains S (2001) High-resolution isotope stratigraphy across the Paleocene-Eocene Boundary at Polecat Bench, WY. University of Michigan, Papers on Paleontology 32: 73-88 [pdf]

24. Burton RF, Snodgrass JJ, Gifford-Gonzalez D, Guilderson TP, Brown T, Koch PL (2001) Holocene changes in the ecology of northern fur seals: Insights from stable isotopes and archaeofauna. Oecologia 128: 107-115 [pdf]

25. Clementz M, Koch PL (2001) Monitoring habitat and foraging ecology in aquatic mammal with stable isotopes in the tooth enamel. Oecologia 129: 461-472 [pdf]

26. Clyde WC, Sheldon ND, Koch PL, Gunnell GF, Bartels WS (2001) Linking the Wasatchian/ Bridgerian boundary to the Cenozoic Global Climate Optimum: New magnetostratigraphic and isotopic results from South Pass, Wyoming. Palaeogeography, Palaeoclimatology, Palaeoecology 167: 175-199 [pdf]

27. Koch PL, Behrensmeyer AK, Stott AW, Tuross N, Evershed RP, Fogel ML (2001) The effects of weathering on the stable isotope composition of bones. Ancient Biomolecules 3: 117-134 [pdf]

28. Royer DL, Wing SL, Beerling DJ, Jolley DW, Koch PL, Hickey LJ, Berner RA (2001) Paleobotanical evidence for near present day levels of atmospheric CO2 during part of the Tertiary. Science 292: 2310-2313 [pdf]

29. Bowen GJ, Clyde WC, Koch PL, Ting S, Alroy J, Tsubamoto T, Wang Y, Wang Y (2002) Temporally constrained patterns of mammalian dispersal at the Paleocene/Eocene boundary. Science 295: 2062-2065 [pdf, suppl]

30. Burton RK, Gifford-Gonzalez D, Snodgrass JJ, Koch PL (2002) Isotopic tracking of prehistoric pinniped foraging and distribution along the Central California coast: preliminary results. International Journal of Osteoarchaeology 12: 4-11 [pdf]

31. Koch PL, Phillips DL (2002) Incorporating concentration dependence in stable isotope mixing models: A reply to Robbins, Hilderbrand, and Farley (2002). Oecologia 133: 14-18 [pdf]

32. Morrill C, Koch PL (2002) Elevation or alteration? Evaluation of isotopic constraints on paleoaltitudes surrounding the Eocene Green River Basin. Geology 30: 151-154 [pdf]

33. Phillips DL, Koch PL (2002) Incorporating concentration dependence in stable isotope mixing models. Oecologia 130: 105-113 [pdf]

34. Bains S, Norris RD, Corfield RM, Bowen GJ, Gingerich PD, Koch PL (2003) Marine-terrestrial linkages at the Paleocene-Eocene boundary. In: Wing SL, Gingerich PD, Schmitz B, Thomas E (eds) Causes and Consequences of Globally Warm Climates in the Early Paleogene. Boulder, Colorado. Geological Society of America Special Paper 369: 1-9 [pdf]

35. Clementz MT, Holden P, Koch PL (2003) A review of calcium isotopes as a trophic level indicator. International Journal of Osteoarchaeology 13: 29-36 [pdf]

36. Clementz MT, Hoppe KA, Koch PL (2003) A paleoecological paradox: the habitat and dietary preferences of the extinct tethythere, Desmostylus, inferred from stable isotope analysis. Paleobiology 29: 506-519 [pdf]

37. Fox DL, Koch PL (2003) Tertiary history of C4 biomass in the Great Plains, USA. Geology 31: 809-812 [pdf]

38. Hoppe KA, Koch PL, Furutani TT (2003) Assessing strontium isotope ratio preservation in fossil bones and tooth enamel. International Journal of Osteoarchaeology 13: 20-28 [pdf]

39. Koch PL, Clyde WC, Hepple RP, Fogel ML, Wing SL, Zachos JC (2003) Isotopic records of carbon cycle and climate change across the Paleocene-Eocene boundary from the Bighorn Basin, Wyoming. In: Wing SL, Gingerich PD, Schmitz B, Thomas E (eds) Causes and Consequences of Globally Warm Climates in the Early Paleogene. Boulder, Colorado. Geological Society of America Special Paper 369: 49-64 [pdf]

40. Ting S, Bowen GJ, Koch PL, Clyde WC, Wang Y, Wang Y, McKenna MC (2003) Biostratigraphic, chemostratigraphic, and magnetostratigraphic study across the Paleocene/Eocene boundary in the Hengyang Basin, Hunan, China. In: Wing SL, Gingerich PD, Schmitz B, Thomas E (eds) Causes and Consequences of Globally Warm Climates in the Early Paleogene. Boulder, Colorado. Geological Society of America Special Paper 369: 521-535 [pdf]

41. Wing SL, Harrington GJ, Bowen GJ, Koch PL (2003) Floral change during the Paleocene/Eocene Thermal Maximum in the Powder River Basin, Wyoming. In: Wing SL, Gingerich PD, Schmitz B, Thomas E (eds) Causes and Consequences of Globally Warm Climates in the Early Paleogene. Boulder, Colorado. Geological Society of America Special Paper 369: 425-440 [pdf]

42. Barnosky AD, Koch PL, Feranec RS, Wing SL, Shabel AB (2004) Assessing the causes of Late Pleistocene Extinctions on the continents. Science 306: 70-75 [pdf, suppl]

43. Bowen GJ, Beerling DJ, Koch PL, Zachos JC, Quattlebaum T (2004) A humid climate state during the Paleocene-Eocene thermal maximum. Nature 432: 495-499 [pdf]

44. Fox DL, Koch PL (2004) Carbon and oxygen isotopic variability in Neogene paleosol carbonates: Constraints on the evolution of the C4-grasslands of the Great Plains, USA. Palaeogeography, Palaeoclimatology, Palaeoecology 207: 305-329 [pdf]

45. Harrington GJ, Kemp SJ, Koch PL (2004) Palaeocene-Eocene paratropical floral change in North America: responses to climate change and plant immigration. Journal of the Geological Society 161: 173-184 [pdf]

46. Koch PL, Diffenbaugh NS, Hoppe KA (2004) The effects of Pleistocene climate and pCO2 change on C4 plant abundance in the south-central United States. Palaeogeography, Palaeoclimatology, Palaeoecology 207: 331-357 [pdf]

47. Meng J, Bowen GJ, Ye J, Koch PL, Ting SY, Li Q, Jin X (2004) Gomphos elkema from the Erlian Basin: Evidence for the Early Tertiary Bumbanian Land Mammal Age in Nei-Mongol, China. American Museum Novitates 3425: 1-24 [pdf]

48. Newsome SD, Phillips DL, Culleton B, Guilderson TP, Koch PL (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 Sciences 31: 1101-1115 [pdf]

49. Ting S, Wang Y, Schiebout JA, Koch PL, Clyde WC, Bowen GJ, Wang Y (2004) New Early Eocene mammalian fossils from the Hengyang Basin, Hunan, China. Bulletin of Carnegie Museum of Natural History 36: 291-301 [pdf]

50. Bowen GJ, Koch PL, Meng J, Ye J, Ting SY, Li Q, Jin X (2005) Age and correlation of fossiliferous Late Paeocene-Early Eocene strata of the Erlian Basin, Inner Mongolia, China. American Museum Novitates 3425: 1-24 [pdf]

51. Chamberlain CP, Waldbauer JR, Fox-Dobbs KL, Newsome SD, Koch PL, Smith DR, Church ME, Chamberlain SD, Sorenson KJ, Risebrough R (2005) Pleistocene to recent dietary shifts in California condors. Proceedings of the National Academy of Sciences of the United States 102: 16707-16711 [pdf]

52. Gifford-Gonzalez D, Newsome SD, Koch PL, Guilderson TP, Snodgrass JJ, Burton RK (2005) Archaeofaunal insights on pinniped-human interactions in the northeastern Pacific. In: Monks G (ed) The Exploitation and Cultural Importance of Sea Mammals, Proceedings of the 9th Conference of the International Council of Archaeozoology, Durham, 2002. Oxbow Books, Oxford, pp 19-38 [pdf]

53. Hedges REM, Stevens RE, Koch PL (2005) Isotopes in bones. In: Leng MJ (ed) Isotopes in palaeoenvironmental research Volume 10 Developments in palaeoenvironmental research. Springer, Netherlands, pp. 117-145 [pdf]

54. Meng J, Wyss AR, Hu Y, Wang Y, Bowen GJ, Koch PL (2005) Glires (Mammalia) from the Late Paleocene Bayan Ulan Locality of Inner Mongolia. American Museum Novitates 3473: 1-25 [pdf]

55. Aurioles D, Koch PL, Le Boeuf BJ (2006) Differences in foraging location of Mexican and California elephant seals: evidence from stable isotopes in pups. Marine Mammal Science 22: 326-338 [pdf]

56. Bowen GJ, Bralower TJ, Delaney ML, Dickens GR, Kelly DC, Koch PL, Kump LR, Meng J, Sloan LC, Thomas E, Wing SL, Zachos JC (2006) Eocene hyperthermal event offers insight into greenhouse warming. EOS 87: 165, 169 [pdf]

57. Clementz MT, Goswami A, Gingerich PD, Koch PL (2006) Isotopic records from early whales and sea cows: contrasting patterns of ecological transition. Journal of Vertebrate Paleontology 26: 355-370 [pdf]

58. Fox-Dobbs K, Stidham TA, Bowen GJ, Emslie SD, Koch PL (2006) Dietary controls on extinction versus survival among avian megafauna in the late Pleistocene. Geology 34: 685-688 [pdf, suppl]

59. Hoppe KA, Koch PL (2006) The isotopic biogeochemistry of the Aucilla River proboscideans. In: Webb SD (ed) First Floridians and Last Mastodons: The Page-Ladson Site on the Aucilla River, Topics in Geobiology, Volume 26. Springer Verlag, pp 379-401 [pdf]

60. Koch PL, Barnosky AD (2006) Late Quaternary extinctions: State of the debate. Annual Review of Ecology, Evolution, and Systematics 37: 215-250 [pdf, suppl]

61. Moss ML, Yang DY, Newsome SD, Speller CF, McKechnie I, McMillan AD, Losey RJ, Koch PL (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 [pdf]

62. Newsome SD, Etnier MA, Aurioles-Gamboa D, Koch PL (2006) Using carbon and nitrogen isotopes to investigate reproductive strategies in northeast Pacific otariids. Marine Mammal Science 22: 556-572 [pdf]

63. Bump JK, Fox-Dobbs K, Bada JL, Koch PL, Peterson RO, Vucetich JA (2007) Stable isotopes, ecological integration, and environmental change: wolves record atmospheric carbon isotope trend better than tree rings. Proceedings of the Royal Society B: Biological Sciences 274: 2471-2480 [pdf]

64. Clementz MT, Koch PL, Beck CA (2007) Diet induced differences in carbon isotope fractionation between sirenians and terrestrial ungulates. Marine Biology 151: 1773-1784 [pdf]

65. Fox-Dobbs K, Bump JK, Peterson RO, Fox DL, Koch PL (2007) Carnivore-specific stable isotope variations and variation in foraging ecology of modern and ancient wolf populations: case studies from Isle Royale, Minnesota, and La Brea. Canadian Journal of Zoology 85: 458-471 [pdf]

66. Hoppe KA, Koch PL (2007) Reconstructing the migration patterns of Late Pleistocene mammals from northern Florida, USA. Quaternary Research 68: 347-352 [pdf]

67. Koch PL (2007) Isotopic study of the biology of modern and fossil vertebrates. In: Michener R, Lajtha K (eds) Stable Isotopes in Ecology and Environmental Science, 2nd Edition. Blackwell Publishing, Boston, pp. 99-154 [pdf]

68. Leonard JA, Vilà C, Fox-Dobbs K, Koch PL, Wayne RK, Van Valkenburgh B (2007) Genetics, isotopes, and morphology reveal a cryptic extinction of Pleistocene wolves. Current Biology 17: 1146-1150 (cover) [pdf]

69. Newsome SD, Etnier MA, Gifford-Gonzalez D, Costa DP, van Tuinen M, Hadly EA, Kennett DJ, Guilderson TP, Koch PL (2007) The shifting baseline of northern fur seal ecology in the northeast Pacific Ocean. Proceedings of the National Academy of Sciences of the United States 104: 9709-9714 [pdf]

70. Newsome SD, Etnier MA, Kurle CM, Waldebauer JR, Chamberlain CP, Koch PL (2007) Historic decline in primary productivity in western Gulf of Alaska and eastern Bering Sea: isotopic analysis of northern fur seal teeth. Marine Ecology Progress Series 332: 211-224 [pdf]

71. Ting S-Y, Meng J, Li Q, Wang Y-Q, Tong Y-S, Schiebout JA, Koch PL, Clyde WC, Bowen GJ (2007) Ganungulatum xinclunliense, an artiodactyl-like mammal (Ungulata, Mammalia) from the Paleocene, Chijiang Basin, Jiangxi, China. Vertebrata PalAsiatica 45: 278-286 [pdf]

72. Yeakel JD, Bennett NC, Koch PL, Dominy NJ (2007) The isotopic ecology of African mole rats informs hypotheses on the evolution of human diet. Proceedings of the Royal Society B: Biological Sciences 274: 1723-1730 (cover) [pdf]

73. Clementz MT, Holroyd PL, Koch PL (2008) Identifying aquatic habits in herbivorous mammals through stable isotope analysis. Palaios 23: 574-585 [pdf]

74. Clyde WC, Tong Y, Snell KE, Bowen GJ, Ting S, Koch PL, Li Q, Wang Y, Meng J (2008) integrated stratigraphic record from the Paleocene of the Chijiang Basin, Jiangxi Province (China): Implications for mammalian turnover and Asian block rotation. Earth and Planetary Science Letters 269: 553-563 [pdf]

75. Corbett DG, Causey D, Clementz M, Koch PL, Doroff A, Lefèvre C, West D (2008) Aleut hunters, sea otters, and sea cows. In: Rick TC, Erlandson JM (eds) Human Impacts on Ancient Marine Systems - A Global Perspective. University of California Press, Berkeley, pp. 43-75 [pdf]

76. Crowley BE, Koch PL, Davis EB (2008) Stable isotope constraints on the elevation history of the Sierra Nevada Mountains, California. Geological Society of America Bulletin 120: 588-598 [pdf]

77. Fox-Dobbs K, Leonard JA, Koch PL (2008) Pleistocene megafauna from eastern Beringia: paleoecologic and paleoenvironmental interpretations of stable carbon and nitrogen isotope and radiocarbon records. Palaeogeography, Palaeoclimatology, Palaeoecology 21: 30-46 [pdf]

78. Porras-Peters H, Aurioles-Gamboa D, Cruz-Escalona VH, Koch PL (2008) Trophic position and overlap of sea lions (Zalophus californianus) in the Gulf of California, Mexico. Marine Mammal Science 24: 554-576 [pdf]

79. Aurioles-Gamboa D, Newsome SD, Salazar-Pico S, Koch PL (2009) Stable isotope differences between sea lions (Zalophus) from the Gulf of California and Galápagos Islands: Influence of diet and location. Journal of Mammalogy 90: 1410-1420 [pdf]

80. Clementz MT, Fox-Dobbs K, Wheatley PV, Koch PL, Doak DF (2009) Revisiting old bones: coupled carbon isotope analysis of bioapatite and collagen as an ecological and paleoecologcial tool. Geological Journal 44: 605-620 [pdf]

81. de Bruyn M, Hall BL, Chauke LF, Baroni C, Koch PL, Hoelzel AR (2009) Rapid response of a marine mammal species to Holocene climate and habitat change. PLoS Genetics 5: e1000554. doi:10.1371/journal.pgen.1000554 [pdf]

82. Koch PL, Fox-Dobbs K, Newsome SD (2009) The isotopic ecology of vertebrates and conservation biology. In: Dietl GP and Flessa KW (eds) Conservation Paleobiology: Using the Past to Manage the Future. Paleontological Society Special Publication 15: 95-112 [pdf]

83. Yeakel JD, Patterson BD, Fox-Dobbs K, Okumura MM, Cerling TE, Moore JW, Koch PL, Dominy NJ (2009) Cooperation and individuality among man-eating lions. Proceedings of the National Academy of Sciences of the United States 106: 19040-19043 (cover) [pdf]

84. Clyde WC, Ting S, Snell KE, Bowen GJ, Tong Y, Koch PL, Li Q, Wang Y-Q (2010) New Paleomagnetic and stable-isotope results from the Nanxiong Basin, China: Implications for the K/T Boundary and the timing of Paleocene mammalian turnover. Journal of Geology 118: 131-143 [pdf]

85. Crowley BE, Carter ML, Karpanty SM, Zihlman AL, Koch PL, Dominy NJ (2010) Stable carbon and nitrogen isotope enrichment in primate tissues, Oecologia 164: 611-626 [pdf]

86. Diefendorf AF, Kevin E. Mueller KE, Wing SL, Koch PL, Freeman KH (2010) Global patterns in leaf 13C discrimination: implications for studies of past and future climate. Proceedings of the National Academy of Sciences of the United States 107: 5738-5743 [pdf]

87. Eder EB, Lewis MN, Campagna C, Koch PL (2010) Evidence of demersal foraging from stable isotope analysis of juvenile elephant seals from Patagonia. Marine Mammal Science 26: 430-443 [pdf]

88. Foley MM, Koch PK (2010) Correlation between allochthonous subsidy input and isotopic variability in the giant kelp Macrocystis pyrifera in central California. Marine Ecology-Progress Series 409: 41-50 [pdf]

89. Ford HL, Schellenberg SA, Becker BJ, Deutschman DL, Dyck KA, Koch PL (2010) Evaluating the skeletal chemistry of Mytilus californianus as a temperature proxy: effects of microenvironment and ontogeny. Paleoceanography 25: PA1203,
doi:10.1029/2008PA001677 [pdf]

90. Graham BS, Koch PL, Newsome SD, McMahon KW, Aurioles D (2010) Using isoscapes to trace the movements and foraging behavior of top predators in oceanic ecosystems. In: West JB, Bowen GJ, Dawson TE, Tu KP (eds) Isoscapes: Understanding Movement, Pattern, and Process on Earth through Isotope Mapping. Springer, pp 299-318 [pdf]

91. Newsome SD, Clementz MT, Koch PL (2010) Using stable isotope biogeochemistry to study marine mammal ecology. Marine Mammal Science 26: 509-572 [pdf]

92. Crowley BE, Thorén S, Rasoazanabary E, Vogel ER, Barrett MA, Zohdy S, Blanco MB, McGoogan KC, Arrigo-Nelson SJ, Irwin MT, Wright PC, Radespiel U, Godfrey LR, Koch PL, Dominy NJ (2011) Explaining geographic variation in isotope composition of mouse lemurs (Microcebus). Journal of Biogeography 38: 2106-2121 [pdf]

93. Freeman KH, Mueller KE, Diefendorf AF, Wing SL Koch PL (2011) Clarifying the influence of water availability and plant types on carbon isotope discrimination by C3 plants. Proceedings of the National Academy of Sciences of the United States 108: E59-E60 [pdf]

94. Ting S-Y, Tong Y-S, Clyde WC, Koch PL Meng J, Wang Y-Q, Bowen GJ, Li Q, Snell KE (2011) Asian early Paleogene chronology and mammalian faunal turnover events. Vertebrata PalAsiatica 49: 1-28 [pdf]

95. Yeakel JD, Novak M, Guimarães Jr PR, Dominy NJ, Koch PL, Ward EJ, Moore JW, Semmens BX (2011) Merging resource availability with isotope mixing models: the role of neutral interaction assumptions. PLoS One (e22015): 1-8 [pdf]

96. Zhuang G, Hourigan JK, Koch PL, Ritts BD, Kent-Corson ML (2011) Isotopic Constraints on Intensified Aridity in Central Asia around 12 Ma. Earth and Planetary Science Letters 312: 152-163 [pdf]

97. Crowley BE, Godfrey LR, Guilderson TP, Zermeño P, Koch PL, Dominy NJ (2012) Extinction and ecological retreat in a community of primates. Proceedings of the Royal Society B: Biological Sciences 279: 3597-3605 [pdf]

98. Domingo L, Koch PL, Grimes ST, Morales J, López-Martínez N (2012) Isotopic paleoecology of mammals and the Middle Miocene Cooling event in the Madrid Basin (Spain). Palaeogeography, Palaeoclimatology, Palaeoecology 339–341: 98–113 [pdf]

99. Fox-Dobbs K, Nelson AA, Koch PL, Leonard JA (xxxx) Faunal isotope records reveal trophic and nutrient dynamics in 20th century Yellowstone grasslands. Biology Letters, in press [pdf]

100. Germain LR, Koch PL, Harvey JT, McCarthy MD (2012) Stable carbon and nitrogen isotopes in multiple tissues of wild and captive harbor seals (Phoca vitulina) off the California coast. Marine Mammal Science 28: 542–560 [pdf]

101. Hopkins JB, Koch PL, Ferguson JM, Greenleaf SS, Kalinowski ST (2012) Stable isotopes to detect food-conditioned bears and evaluate human-bear management. The Journal of Wildlife Management 76: 703-713 [pdf]

102. Hückstädt LA, Burns J, Koch PL McDonald BI, Crocker DE, Costa DP (2012) Being a specialist in a changing environment: the diet of the crabeater seal along the western Antarctica Peninsula. Marine Ecology Progress Series 455:287-301 [pdf]

103. Hückstädt LA, Koch PL, McDonald BI, Goebel M, Crocker D, Costa DP (2012) Stable isotope analyses reveal the complex trophic ecology of a top marine predator, the southern elephant seal. Oecologia 169: 395-406 [pdf]

104. Kim SL, Casper DR, Galván-Magaña F, Ochoa-Díaz R, Hernández-Aguilar SB, Koch PL (2012) Carbon and nitrogen discrimination factors for elasmobranch soft tissues based on a long-term controlled feeding study. Environmental Biology of Fishes 95:37–52 [pdf]

105. Kim SL, Koch PL (2012) Methods to collect, preserve, and prepare elasmobranch tissues for stable isotope analysis. Environmental Biology of Fishes 95:53–63 [pdf]

106. Kim SL, Martínez del Rio C, Casper D, Koch PL (2012) Isotopic incorporation rates for shark tissues from a long-term captive feeding study. Journal of Experimental Biology 215: 2495-2500 [pdf]

107. Snell KE, Thrasher BL, Eiler JM, Koch PL, Sloan LC, Tabor NJ (xxxx) Hot summers in the Bighorn Basin during the early Paleogene greenhouse. Geology, in press

108. Wheatley PV, Peckham H, Newsome SD, Koch PL (2012) Estimating marine resource use by the American crocodile (Crocodylus acutus) in southern Florida. Marine Ecology Progress Series 447: 211-229 [pdf]

109. Yeakel JD, Guimarães PR Jr, Novak M, Fox-Dobb K, Koch PL (xxxx) Journal of the Royal Society Interface, doi:10.1098/rsif.2012.0481 [pdf]


Technical Reports, Corrections, Book Reviews, Popular Articles

1. Koch PL, Stearley RF (1987) Fossil vertebrates of Michigan. Rocks and Minerals 62: 169-174 [pdf]

2. Koch PL, Behrensmeyer AK, Tuross N, Fogel ML (1990) The fidelity of isotopic preservation during bone weathering and burial. Annual Report of the Director of the Geophysical Laboratory, Carnegie Institution of Washington 1989-1990: 105-110

3. Koch PL, Behrensmeyer AK, Fogel ML (1991) The isotopic ecology of plants and animals in Amboseli National Park, Kenya. Annual Report of the Director of the Geophysical Laboratory, Carnegie Institution of Washington 1990-1991: 163-171 [pdf]

4. Koch PL (1992) Elephants and Forerunners: Review of Mammoths, Mastodonts, and Elephants by G Haynes. Science 255: 1297-1298 [pdf]

5. Koch PL, Behrensmeyer AK (1992) Determining the source-area of ivory through isotopic analysis. Elephant and Ivory Information Service, Special Issue19: 1-4 [pdf]

6. Koch PL, Hoppe KA (1996) Isotopes and elephant. American Paleontologist 4: 2-3 [pdf]

7. Koch PL (1998) Isotopic paleoecology and land vertebrates: individuals, species and ecosystems. Palaios 13: 2-3 [pdf]

8. Koch PL (1999) Schuchert Award acceptance remarks. Journal of Paleontology 73: 736-737 [pdf]

9. Koch PL, Morril C (2000) Paleocene/Eocene climate change in southwestern Wyoming: Isotopic records from paleosol carbonates and freshwater bivalves. GFF 122: 89-91 [pdf]

10. Parrish JT, Koch PL, Allmon W, Ashley G, Cúneo R, Lorente MA, Schindler E (2000) Paleoclimatology in the 21st Century. In: Lane, H.R., Steininger FF, Kaelser RL, Ziegler W, Lipps J (eds) Fossils and the future, Paleontology in the 21st Century. Senckenber-Buch 74: 167-172 [pdf]

11. Thomason J, Lubas L, Koch P, Rosen R, Ashley, Hagadorn JW, Goujet D, May C, Scotchmoor J (2000) The image of paleontology and public outreach. In: Lane, H.R., Steininger FF, Kaelser RL, Ziegler W, Lipps J (eds) Fossils and the future, Paleontology in the 21st Century. Senckenber-Buch 74: 7-12 [pdf]

12. Newsome SD, Koch PL (2001) Año Nuevo State Reserve: Paleontological Resource Survey and Management Recommendations. Report for the California Department of Parks and Recreation

13. Koch PL, Burton J (2003) Preface to the Special Volume of the International Journal of Osteoarchaeology. International Journal of Osteoarchaeology 13: 1-2 [pdf]

14. Koch PL (2006) Land of the Lost (Review of Twilight of the Mammoths: Ice Age Extinctions and the Rewilding of America by Paul S. Martin). Science 311: 957 [pdf]

15. Bennington JB, DiMichele B, Badgley C, Bambach R, Barrett P, Behrensmeyer K, Bobe R, Burnham R, Saeschler T, van Dam J, Eronen J, Erwin D, Finnegan S, Holland S, Hunt G, Jablonski D, Jackson S, Jacobs B, Kidwell S, Koch P, Kowalewski M, Labandeira C, Looy C, Lyons K, Novack-Gottshall P, Potts R, Roopnarine P, Strömberg C, Sues H, Wagner P, Wilf P, Wing S (2008) Paleontological powers of ten: issues of scale in paleobiology. Palaios 24:1-4 [pdf]

16. Koch PL (2010) Feces, fungus, and the fall of megafauna. Frontiers of Biogeography 2.1: 7 [pdf]

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