Dental microwear foraging ecology of a large browsing ruminant in Northern Hemisphere: The European moose (Alces alces)

• Published in: Palaeogeography, Palaeoclimatology, Palaeoecology
• Main Authors: Berlioz, Emilie, Leduc, Charlotte, Hofman-Kamińska, Emilia, Bignon-Lau, Olivier, Kowalczyk, Rafał, Merceron, Gildas
• Other Authors: Laboratoire de paléontologie, évolution, paléoécosystèmes, paléoprimatologie UMR 7262 (Palevoprim Poitiers ), Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), Institut national de recherches archéologiques préventives (Inrap), Trajectoires - UMR 8215, Université Paris 1 Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS), Mammal Research Institute, Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences (PAN), Technologie et Ethnologie des Mondes Préhistoriques (TEMPS), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2022
• Subjects: cervid; diet; tooth wear; foraging behavior; European elk; [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology; [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology; Alces alces
• Online Access: https://hal.science/hal-03435143; https://hal.science/hal-03435143/document; https://hal.science/hal-03435143/file/Berlioz%20et%20al%202021-ACCEPTED_for%20HAL-1.pdf; https://doi.org/10.1016/j.palaeo.2021.110754

International audience Years of studies have already highlighted the complex combination, in moose feeding ecology, of a marked selectivity coupled with a significant dietary adaptability toward changes in the local resource availability. Dental textures resulting from masticatory movements and the properties of ingested food items constitute a link between the animal, its ecology and the environment it occupies. This approach is efficient to decipher subtle variations in diet, at the interspecific but also intra-populational scales. In this study, we explore inter and intra population dietary variations among six Northern European moose populations using DMTA. We show that moose feeding ecology spans a continuum between a diet dominated by tender leaves and a diet consisting of lignified tissues. The structure of habitats is the main driver of these dietary differences between populations. The absence of significant variation between males and females or between seasons is interpreted as a reflection of the food selectivity of this deer on a finer scale. The moose has a long common history with humans, constituting at certain times and in certain places the main food resource of these populations, adapting in other contexts and at other times to the repercussions of increasing anthropization and global climate change. We aim here at characterizing the dental microwear texture diversity hidden within the “browsing” dietary category. This work is also intended to be used as a reference for future paleontological or archeological investigations. We believe that it will contribute to a better understanding of the(paleo)ecology of the species and of the variations in its feeding ecology through time.