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Differences in Tooth Microwear of Populations of Caribou (Rangifer tarandus, Ruminantia, Mammalia) and Implications to Ecology, Migration, Glaciations and Dental Evolution

  • Florent RivalsEmail author
  • Nikos Solounias
Original Paper

Abstract

Tooth microwear was analyzed for a large sample of wild-shot barren-ground caribou (Rangifer tarandus groenlandicus) from the Kaminuriak population of eastern Canada. This sample was compared to the microwear of specimens from three Pleistocene localities in North America (Alaska) and western Europe (Caune de l’Arago in France and Salzgitter in Germany). The results show that the extant samples from eastern Canada have seasonal variation in microwear and presumably in diet. The differences in microwear between the various seasons may reflect a cyclic migration of the population within a year. The extinct population from Alaska has extremely blunt teeth (mesowear), as blunt as those of modern zebras and bison. This observation is corroborated by the lowest number of microwear pits. The findings are untypical, as most typical caribou teeth have sharper apices, and we interpret this as an indication of a local habitat that was different with animals feeding on non-typical vegetation. The combination of Rangifer from Caune de l’Arago and Salzgitter reveals a pattern in microwear variability. The Salzgitter is interglacial and shows a greater diversity of browsing (broad spectrum on average number of pits) than the glacial Caune de l’Arago. The interglacial population from Salzgitter is interesting because it shows several different types of browsing. Collectively all the Rangifer teeth show that diet of a brachydont taxon can vary across most of the dietary morphospace of ungulates as represented by tooth microwear. The three Pleistocene samples exhibit microwear that is different from the extant population in question. This observation implies that the recent diet of Rangifer has changed from the typical caribou diet in the past. This indicates dietary change within a species. This is important because it represents dietary evolution without changes in tooth morphology.

Keywords

Dental microwear Diet Caribou Rangifer tarandus Glaciations Dental evolution 

Notes

Acknowledgements

We are grateful to Gina Semprebon for help and discussions and Renata Trister for help with the manuscript. We also thank the two anonymous reviewers, and John Wible, the editor, for helpful comments on an earlier version of this manuscript. We thank the museums who provided access to specimens, in particular we are grateful to: J. Flynn, J. Meng, C. Norris, J. Galkin (Department of Vertebrate Paleontology, American Museum of Natural History, New York), E. Westwig (Department of Mammalogy, American Museum of Natural History, New York), R. White (Department of Anthropology, New York University), H. de Lumley (Institut de Paléontologie Humaine, Paris), and W.-D. Steinmetz (Braunschweigisches Landesmuseum, Wolfenbuttel). We thank the French ministry of foreign affairs and the Alexander von Humboldt Foundation for fellowship grants to FR.

References

  1. Bergerud AT (1972) Food habits of the Newfoundland caribou. J Wildl Manage 36:913–923CrossRefGoogle Scholar
  2. Bergerud AT (1978) Caribou. In: Schmidt JL, Gilbert DL (eds) Big game of North America: ecology and management. Stackpole, Harrisburg, pp 83–101Google Scholar
  3. Bergerud AT (2000) Caribou. In: Demarais S, Krausman PR (eds) Ecology and management of large mammals in North America. Prentice-Hall, Upper Saddle River, NJ, pp 658–693Google Scholar
  4. de Lumley H, Fournier A, Park YC, Yokoyama Y, Demouy A (1984) Stratigraphie du remplissage Pléistocène moyen de la Caune de l’Arago à Tautavel. Etude de huit carottages effectués de 1981 à 1983. L’Anthropologie 88:5–18Google Scholar
  5. Drucker D, Bocherens H, Pike-Tay A, Mariotti A (2001) Isotopic tracking of seasonal dietary change in dentine collagen: preliminary data from modern caribou. C R Acad Sc Paris 333:303–309Google Scholar
  6. Fortelius M, Solounias N (2000) Functional characterization of ungulate molars using the abrasion-attrition wear gradient: a new method for reconstructing paleodiets. Am Mus Novit 3301:1–36CrossRefGoogle Scholar
  7. Gaudzinski S, Roebroeks W (2000) Adults only. Reindeer hunting at the Middle Palaeolithic site Salzgitter Lebenstedt, Northern Germany. J Hum Evol 38:497–521PubMedCrossRefGoogle Scholar
  8. Godfrey LR, Semprebon GM, Jungers WL, Sutherland MR, Simons EL, Solounias N (2004) Dental use wear in extinct lemurs: evidence of diet and niche differentiation. J Hum Evol 47:145–169PubMedCrossRefGoogle Scholar
  9. Guthrie RD (1968) Paleoecology of the large-mammal community in interior Alaska during the late Pleistocene. Am Midl Nat 79:346–363CrossRefGoogle Scholar
  10. Huntley B, Webb T (1989) Migration species’ response to climatic variations caused by changes in the earth’s orbit. J Biogeogr 16:5–19CrossRefGoogle Scholar
  11. Johnsingh AJT, Sankar K (1991) Food plants of chital, sambar, and cattle on Mundanthurai Plateau, Tamil Nadu, south India. Mammalia 55:57–66CrossRefGoogle Scholar
  12. Khan JA (1994) Food habits of ungulates in dry tropical forests of Gir Lion Sanctuary, Gujarat, India. Acta Theriol 39:185–193Google Scholar
  13. Klein DR (1992) Comparative ecological and behavioral adaptations of Ovibos moschatus and Rangifer tarandus. Rangifer 12:47–55Google Scholar
  14. Larter NC, Nagy JA (1997) Peary caribou, muskoxen and Banks Island forage: assessing seasonal diets similarities. Rangifer 17:9–16Google Scholar
  15. Merceron G, Madelaine S (2006) Molar microwear pattern and palaeoecology of ungulates from La Berbie (Dordogne, France): environment of Neanderthals and modern human populations of the Middle/Upper Palaeolithic. Boreas 35:272–278CrossRefGoogle Scholar
  16. Merceron G, Viriot L, Blondel C (2004) Tooth microwear pattern in roe deer (Capreolus capreolus L.) from Chizé (Western France) and relation to food composition. Small Rumin Res 53:125–132CrossRefGoogle Scholar
  17. Miller FL (1974) Biology of the Kaminuriak population of barren-ground caribou. Part 2: dentition as an indicator of age and sex; composition and socialization of the population. Can Wildl Serv Rep Ser 31:1–87Google Scholar
  18. Miller DR (1976) Biology of the Kaminuriak population of barren-ground caribou. Part 3: Taiga winter range relationships and diet. Can Wildl Serv Rep Ser 36:1–37Google Scholar
  19. Miller FL (1982) Caribou—Rangifer tarandus. In: Chapman JA, Feldhamer GA (eds) Wild mammals of North America. Biology, Management, and Economics. The Johns Hopkins University Press, Baltimore, pp 923–959Google Scholar
  20. Ngampongsai C (1987) Habitat use by the Sambar (Cervus unicolor) in Thailand: a case study for Khao-Yai National Park. In: Wemmer CM (ed) Biology and Management of the Cervidae. Smithsonian Institution Press, Washington, DC, pp 289–298Google Scholar
  21. Nowak RM (1999) Walker’s mammals of the world. The Johns Hopkins University Press, BaltimoreGoogle Scholar
  22. Palombo MR, Filippi ML, Iacumin P, Longinelli A, Barbieri M, Maras A (2005) Coupling tooth microwear and stable isotope analyses for palaeodiet reconstruction: the case study of late middle Pleistocene Elephas (Palaeoloxodon) antiquus teeth from Central Italy (Rome area). Quat Int 126–128:153–170CrossRefGoogle Scholar
  23. Pike-Tay A (1995) Variability and synchrony of seasonal indicators in dental cementum microstructure of the Kaminuriak caribou population. Archaeofauna 4:273–284Google Scholar
  24. Pike-Tay A, Morcomb CA, O’Farrell M (2000) Reconsidering the Quadratic Crown Height Method of age estimation for Rangifer from archaeological sites. Archaeozoologia 11:145–174Google Scholar
  25. Rensberger JM (1978) Scanning electron microscopy of wear and occlusal events in some small herbivores. In: Butler PM, Joysey KA (eds) Development, function and evolution of teeth. Academic Press, London, pp 415–438Google Scholar
  26. Rivals F, Deniaux B (2005) Investigation of human hunting seasonality through dental microwear analysis of two Caprinae in late Pleistocene localities in Southern France. J Archaeol Sci 32:1603–1612CrossRefGoogle Scholar
  27. Rivals F, Kacimi S, Moutoussamy J (2004) Artiodactyls, favourite game of prehistoric hunters at the Caune de l’Arago Cave (Tautavel, France). Opportunist or selective hunting strategies? Eur J Wildl Res 50:25–32CrossRefGoogle Scholar
  28. Rivals F, Mihlbachler MC, Solounias N (2007a) Effect of ontogenetic-age distribution in fossil samples on the interpretation of ungulate paleo-diets using the mesowear method. J Vertebr Paleontol (in press)Google Scholar
  29. Rivals F, Solounias N, Mihlbachler MC (2007b) Evidence for geographic variation in the diets of late Pleistocene and early Holocene Bison in North America, and differences from the diets of recent Bison. Quat Res (in press)Google Scholar
  30. Schaller GB (1967) The deer and the tiger. The University of Chicago Press, ChicagoGoogle Scholar
  31. Skoog RO (1968) Ecology of the caribou (Rangifer tarandus granti) in Alaska. Ph.D. dissertation, University of California, BerkeleyGoogle Scholar
  32. Semprebon GM, Godfrey LR, Solounias N, Sutherland MR, Jungers WL (2004) Can low-magnification stereomicroscopy reveal diet? J Hum Evol 47:115–144PubMedCrossRefGoogle Scholar
  33. Solounias N, Moelleken SMC (1992) Dietary adaptation of two goat ancestors and evolutionary considerations. Geobios 25:797–809CrossRefGoogle Scholar
  34. Solounias N, Moelleken SMC (1994) Dietary differences between two archaic ruminant species from Sansan, France. Hist Biol 7:203–220CrossRefGoogle Scholar
  35. Solounias N, Semprebon G (2002) Advances in the reconstruction of ungulate ecomorphology with application to early fossil equids. Am Mus Novit 3366:1–49CrossRefGoogle Scholar
  36. Solounias N, Teaford M, Walker A (1988) Interpreting the diet of extinct ruminants: the case of a non-browsing giraffid. Paleobiology 14:287–300Google Scholar
  37. Stephenson RO, Gerlach SG, Guthrie RD, Harington CR, Mills RO, Hare G (2001) Wood bison in late Holocene Alaska and adjacent Canada: paleontological, archaeological and historical records. In: Gerlach SG, Murray MS (eds) People and wildlife in Northern North America: essays in honor of R. Dale Guthrie, Archaeopress, Oxford, pp 125–159Google Scholar
  38. Vrba ES (1992) Mammals as a key to evolutionary theory. J Mammal 73:1–28CrossRefGoogle Scholar
  39. Walker A, Hoek HN, Perez L (1978) Microwear of mammalian teeth as an indicator of diet. Science 201:908–910PubMedCrossRefGoogle Scholar
  40. Wilkerson AS, Kaisen PC (1932) Some frozen deposits in the goldfields of interior Alaska. A study of the Pleistocene deposits of Alaska. Am Mus Novit 525:1–22Google Scholar
  41. Yesner DR (2001) Human dispersal into interior Alaska: antecedent conditions, mode of colonization, and adaptations. Quat Sci Rev 20:315–327CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.ICREA—IPHES, Àrea de PrehistòriaUniversitat Rovira i VirgiliTarragonaSpain
  2. 2.Department of AnatomyNew York College of Osteopathic MedicineOld WestburyUSA
  3. 3.Division of Vertebrate PaleontologyAmerican Museum of Natural HistoryNew YorkUSA

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