2022. By Cara Kubiak, Vaughan Grimes, Geert Van Biesen, Grant Keddie, Mike Buckley, Reba Macdonald, M. P. Richards. ABSTRACT: Competition between taxa related to climate changes has been proposed as a possible factor in Pleistocene megafaunal extinctions, and here we present isotope evidence of the diets of three co‐existing bear species [black bear (Ursus americanus), brown bear (Ursus arctos), and the now extinct short‐faced bear (Arctodus simus)] from a locale in western North America dating to the Late (Terminal) Pleistocene (~14.5–11.7 ka). The three bear species were found at several sites on Vancouver Island, on the western coast of Canada. To examine the chronological overlap and niche partitioning between these species of bear, we used direct radiocarbon dating, stable isotope … Continue reading “Dietary niche separation of three Late Pleistocene bear species from
Vancouver Island”