Complexities of nitrogen isotope biogeochemistry in plant-soil systems: implications for the study of ancient agricultural and animal management practices P Szpak Frontiers in Plant Science 5, 288, 2014 | 401 | 2014 |
Fish Bone Chemistry and Ultrastructure: Implications for Taphonomy and Stable Isotope Analysis P Szpak Journal of Archaeological Science, 2011 | 359 | 2011 |
Best practices for calibrating and reporting stable isotope measurements in archaeology P Szpak, JZ Metcalfe, RA Macdonald Journal of Archaeological Science: Reports 13, 609-616, 2017 | 234 | 2017 |
Isotopic evidence for oligotrophication of terrestrial ecosystems JM Craine, AJ Elmore, L Wang, J Aranibar, M Bauters, P Boeckx, ... Nature Ecology & Evolution 2 (11), 1735-1744, 2018 | 185 | 2018 |
Influence of seabird guano and camelid dung fertilization on the nitrogen isotopic composition of field-grown maize (Zea mays) P Szpak, JF Millaire, CD White, FJ Longstaffe Journal of Archaeological Science 39 (12), 3721-3740, 2012 | 180 | 2012 |
Carbon and nitrogen isotopic survey of northern Peruvian plants: baselines for paleodietary and paleoecological studies P Szpak, CD White, FJ Longstaffe, JF Millaire, VF Vásquez Sánchez PLoS One 8 (1), e53763, 2013 | 177 | 2013 |
Out of America: ancient DNA evidence for a new world origin of late quaternary woolly mammoths R Debruyne, G Chu, CE King, K Bos, M Kuch, C Schwarz, P Szpak, ... Current Biology 18 (17), 1320-1326, 2008 | 146 | 2008 |
Ancient mitogenomes reveal the evolutionary history and biogeography of sloths F Delsuc, M Kuch, GC Gibb, E Karpinski, D Hackenberger, P Szpak, ... Current Biology 29 (12), 2031-2042. e6, 2019 | 133 | 2019 |
Historical ecology of late Holocene sea otters (Enhydra lutris) from northern British Columbia: isotopic and zooarchaeological perspectives P Szpak, TJ Orchard, I McKechnie, DR Gröcke Journal of Archaeological Science 39 (5), 1553-1571, 2012 | 117 | 2012 |
Small scale camelid husbandry on the north coast of Peru (Virú Valley): Insight from stable isotope analysis P Szpak, JF Millaire, CD White, FJ Longstaffe Journal of Anthropological Archaeology 36, 110-129, 2014 | 101 | 2014 |
Stable Isotope Biogeochemistry of Seabird Guano Fertilization: Results from Growth Chamber Studies with Maize (Zea Mays) P Szpak, FJ Longstaffe, JF Millaire, CD White PloS one 7 (3), e33741, 2012 | 101 | 2012 |
Regional differences in bone collagen δ13C and δ15N of Pleistocene mammoths: Implications for paleoecology of the mammoth steppe P Szpak, DR Gröcke, R Debruyne, RDE MacPhee, RD Guthrie, D Froese, ... Palaeogeography, Palaeoclimatology, Palaeoecology 286 (1-2), 88-96, 2010 | 94 | 2010 |
Improved quality control criteria for stable carbon and nitrogen isotope measurements of ancient bone collagen EJ Guiry, P Szpak Journal of Archaeological Science 132, 105416, 2021 | 87 | 2021 |
Large variation in nitrogen isotopic composition of a fertilized legume P Szpak, FJ Longstaffe, JF Millaire, CD White Journal of Archaeological Science 45, 72-79, 2014 | 87 | 2014 |
Effects of lipid extraction and ultrafiltration on stable carbon and nitrogen isotopic compositions of fish bone collagen EJ Guiry, P Szpak, MP Richards Rapid Communications in Mass Spectrometry 30 (13), 1591-1600, 2016 | 74 | 2016 |
Zinc isotope ratios as indicators of diet and trophic level in arctic marine mammals K Jaouen, P Szpak, MP Richards PLoS One 11 (3), e0152299, 2016 | 72 | 2016 |
Mammuthus Population Dynamics in Late Pleistocene North America: Divergence, Phylogeography, and Introgression J Enk, A Devault, C Widga, J Saunders, P Szpak, J Southon, JM Rouillard, ... Frontiers in Ecology and Evolution 4, 42, 2016 | 69 | 2016 |
Quality Control for Modern Bone Collagen Stable Carbon and Nitrogen Isotope Measurements E Guiry, P Szpak Methods in Ecology and Evolution, 2020 | 65 | 2020 |
Historical ecology and the conservation of large, hermaphroditic fishes in Pacific Coast kelp forest ecosystems TJ Braje, TC Rick, P Szpak, SD Newsome, JM McCain, EA Elliott Smith, ... Science Advances 3 (2), e1601759, 2017 | 62 | 2017 |
Early Horizon camelid management practices in the Nepeña Valley, north-central coast of Peru P Szpak, D Chicoine, JF Millaire, CD White, R Parry, FJ Longstaffe Environmental Archaeology 21 (3), 230-245, 2016 | 55 | 2016 |