• 1
    Barnes, R.H. (1962) Nutritional implications of coprophagy. Nutritional Reviews 12, 289291.
  • 2
    Batzli, G.O. (1985) Nutrition. Biology of New World Microtus (ed. R. H. Tamarin), pp. 779–811. The American Society of Mammalogists Special Publication 8, Shippensburg, PA.
  • 3
    Batzli, G.O. & Cole, F.R. (1979) Nutritional ecology of microtine rodents: digestibility of forage. Journal of Mammalogy 12, 740750.
  • 4
    Batzli, G.O., Broussard, A.D., Oliver, R.J. (1994) The integrated processing response in herbivorous small mammals. The Digestive System in Mammals: Food, Form and Function (eds D. J. Chivers & P. Langer), pp. 324–336. Cambridge University Press, Cambridge.
  • 5
    Björnhag, G. (1994) Adaptations in the large intestine allowing small animals to eat fibrous foods. The Digestive System in Mammals: Food, Form and Function (eds D. J. Chivers & P. Langer), pp. 287–309. Cambridge University Press, Cambridge.
  • 6
    Brugger, K.E. (1991) Anatomical adaptation of the gut to diet in red-winged blackbirds (Agelaius phoeniceus). Auk 12, 562567.
  • 7
    Cranford, J.A. & Johnson, E.O. (1989) Effects of coprophagy and diet quality on two microtine rodents (Microtus pennsylvanicus and Microtus pinetorum). Journal of Mammalogy 12, 494502.
  • 8
    Demment, M.W. & Van Soest, P.J. (1985) A nutritional explanation for body-size patterns of ruminant and non-ruminant herbivores. American Naturalist 12, 641672.
  • 9
    Derting, T.L. & Bogue, B.A. (1993) Responses of the gut to moderate energy demands in a small herbivore (Microtus pennsylvanicus). Journal of Mammalogy 12, 5968.
  • 10
    Ferraris, R.P., Lee, P.P., Diamond, J.M. (1989) Origin of regional and species differences in intestinal glucose uptake. American Journal of Physiology 12 (Gastrointestinal and Liver Physiology 20), G689G697.
  • 11
    Goering, H.K. & Van Soest, P.J. (1970) Forage Fiber Analysis. United States Department of Agriculture, Agricultural Handbook no. 379, Washington, DC.
  • 12
    Gross, J.E., Wang, Z., Wunder, B.A. (1985) Effects of food quality and energy needs: changes in gut morphology and capacity of Microtus ochrogaster. Journal of Mammalogy 12, 661667.
  • 13
    Haken, A.E. & Batzli, G.O. (1996) The effects of food availability and competition on the diet of prairie voles. Journal of Mammalogy 12, 315324.
  • 14
    Hammond, K.A. (1989) The role of diet quality and energy need in the nutritional ecology of a small herbivore. Ph.D. thesis, Colorado State University, Fort Collins.
  • 15
    Hammond, K.A. & Wunder, B.A. (1991) The role of diet quality and energy in the nutritional ecology of a small herbivore, Microtus ochrogaster. Physiological Zoology 12, 541567.
  • 16
    Hansson, L. (1985) Geographic differences in bank voles Clethrionomys glareolus in relation to ecogeographic rules and possible demographic and nutritive strategies. Annales Zoologici Fennici 12, 319328.
  • 17
    Hansson, L. & Jaarola, M. (1989) Body size related to cyclicity in microtines: dominance behaviour or digestive efficiency? Oikos 12, 356364.
  • 18
    Hornicke, E. & Björnhag, G. (1979) Coprophagy and related strategies for digesta utilization. Digestive Physiology and Metabolism in Ruminants (eds Y. Ruckebush & P. Thweind), pp. 707–730. Proceedings of the 5th International Symposium of Ruminant Physiology. MTP Press, Lancaster, UK
  • 19
    Hume, I.D., Morgan, I.D., Kenagy, G.J. (1993) Digesta retention and digestive performance in sciurid and microtine rodents: effects of hindgut morphology and body size. Physiological Zoology 12, 396411.
  • 20
    Kenagy, G.J. & Hoyt, D.F. (1980) Reingestion of faeces in rodents and its daily rythmicity. Oecologia 12, 403409.
  • 21
    Kostelecka-Myrcha, A. & Myrcha, A. (1964) The rate of passage of foodstuffs through the alimentary tracts of certain Microtidae under laboratory conditions. Acta Theriologica 12, 3753.
  • 22
    Lee, W.B. & Houston, D.C. (1993a) The role of coprophagy in digestion in voles (Microtus agrestis and Clethrionomys glareolus). Functional Ecology 12, 427432.
  • 23
    Lee, W.B. & Houston, D.C. (1993b) The effect of diet quality on gut anatomy in British voles (Microtinae). Journal of Comparative Physiology B 12, 337339.
  • 24
    Lee, W.B. & Houston, D.C. (1993c) Tooth wear patterns in voles (Microtus agrestis and Clethrionomys glareolus) and efficiency of dentition in preparing food for digestion. Journal of Zoology, London 12, 301309.
  • 25
    Piekarz, R. (1963) The influence of coprophagy on the time of passing of food down the alimentary tract in the domestic rabbit. Acta Physiologica Polonica 12, 337348.
  • 26
    Pulliainen, E. & Tunkkari, P. (1983) Seasonal changes in the gut lengths of the willow grouse (Lagopus lagopus) in Finnish Lapland. Annales Zoologici Fennici 12, 5356.
  • 27
    Sibley, R.M. (1981) Strategies of digestion and defecation. Physiological Ecology (eds C. R. Townsend & P. Calow), pp. 109–139. Blackwell Scientific Publications, Oxford.
  • 28
    Stenseth, N.C. & Ims, R.A. (1993) The Biology of Lemmings. Linnaean Society Symposium Series Number 15, Academic Press, London.
  • 29
    Tamarin, R.H. (1985) Biology of New World Microtus. The American Society of Mammalogists Special Publication no. 8, Shippensburg, PA.
  • 30
    Uden, P., Colucci, P.E., Van Soest, P.J. (1980) Investigation of chromium, cerium and cobalt as markers in digesta: rate of passage studies. Journal of Science, Food and Agriculture 12, 625632.
  • 31
    Warner, A.C.I. (1981) Rate of passage of digesta through the gut of mammals and birds. Nutritional Abstracts and Reviews 12, 789820.
  • 32
    Williams, C.H., David, D.J., Iismaa, O. (1962) The determination of chromic oxide in faeces samples by atomic absorption spectrophotometry. Journal of Agricultural Science (Cambridge) 12, 381385.
  • 33
    Yang, Y. & Joern, A. (1994) Gut size changes in relation to variable food quality and body size in grasshoppers. Functional Ecology 12, 3645.
  • 34
    Young Owl, M. (1994) A direct method for measurement of gross surface area of mammalian gastrointestinal tracts. The Digestive System in Mammals: Form, Function and Evolution (eds D. J. Chivers & P. Langer), pp. 219–233. Cambridge University Press, Cambridge.