Nitrogen stable isotope composition of amino acids in bone collagen of modern wolf (Canis lupus), Białowieża Forest, Poland, and its prey, and Late Pleistocene cave hyena (Crocuta crocuta), Perspektywiczna Cave, Poland, and its prey

This dataset presents nitrogen stable isotope (δ¹⁵N, ‰ Air N2) GC-C-IRMS data for individual amino acids of bone collagen (columns H-Q) with their standard deviation (columns R-AA), and nitrogen stable isotope (δ¹⁵N, ‰ Air N2) EA-IRMS data for bulk collagen (column AC). Amino acids analyzed are (by order of appearance in the GC spectrum): Ala, Val, Gly, Pro, Thr, Asx (aspartate, merged Asp and Asn), Ser, Glx (glutamate, merged Glu and Gln), Phe, and Hyp. Other peaks (Leu, Ile, Nle, Met) were also detected but not measured (Leu and Ile coeluted in most samples; Nle was a non-collagen internal standard used for calibration; Met usually gave large differences between replicates). Research material were bones of herbivorous and carnivorous mammals, both fossil and modern. Fossil animals included: reindeer Rangifer tarandus, steppe bison/aurochs Bison/Bos, horse Equus ferus, woolly rhino Coelodonta antiquitatis, mammoth Mammuthus primigenius, and spotted hyena Crocuta crocuta, all from Late Pleistocene sediments of Perspektywiczna Cave (Poland). Modern animals included: wild boar Sus scrofa, European bison Bison bonasus, red deer Cervus elaphus, roe deer Capreolus capreolus, and wolf Canis lupus, all from Białowieża Forest (Poland). Quality control (QC) data are provided, including: difference between δ¹⁵N values of Pro and Hyp (column AB), and difference between bulk collagen EA-IRMS value and GC-C-IRMS amino acid mass balanced value (column AF). Mass balance was calculated using average amino acid participation in total nitrogen pool of bone collagen (raw 46) and presented in column AD with standard deviation in column AE. The analytical details are presented in paper https://doi.org/10.1016/j.palaeo.2025.113040.