Ráðunautafundur - 15.02.1989, Blaðsíða 47
-39-
Arnold, G. W., 1964. Some prinsiples in the investigation of selective grazing. Proc.
Aust. Soc. Anim. Prod. 5: 258-271.
Arnold, G. W., 1981. Grazing behavior. í Grazing Animals (ritstj. F. H. W. Morey).
World Animals Science, Bl. Elsevier, Amsterdam: 79-104.
Arnold, G. W., 1987. Influence of the biomass, botanical composition and sward
height of annual pastures on foraging behaviour by sheep. J. Appl. Ecol. 24: 759-772.
Baadshaug, O. H., 1983. Gjödsling og kalking af ugjödsla fjellbeite. II. Virkning pá
fórkvalitet og avbeiting. Forsk. Fors. Landbr. 34: 251-258.
Bell, R. H. V., 1971. A grazing ecosystem in the Serengeti. Sci. Amer. 225: 86-93.
Black, J. L. & P. A. Kenney, 1984. Factors affecting diet selection by sheep. II.
Height and density of pasture. Aust. J. Agric. Res. 35: 565-578.
Bryant, J. P., F. S. Chapin III & D. R. Klein, 1983. Carbon/nutrient balance of
boreal plant in relation to vertebrate herbivory. Oikos 40: 357-368.
Feeny, P., 1975. Biochemical coevolution between plants and their insect herbivores.
í Coevolution of Animals and Plants (ritstj. L. E. Gilbert & P. H. Raven). Univ.
Texas Press, Austin: 3-19
Freeland, W. J. & D. H. Janzen, 1974. Strategies in herbivory by mammals: The role
of secondary compounds. Amer. Nat. 108: 269-289.
Garmo, T. H., 1986. Mountain pasture improvement by shrub clearing and
fertilization. í Grazing Research at Northern Latitudes (ritstj. Ó. Guðmundsson): 87-
99.
Hanley, T. A., 1982. The nutritional basis for food selection by ungulates. J. Range
Manage. 35: 146-151.
Hanley, T. A. & K. A. Hanley, 1982. Food resource partitioning by sympatric
ungulates on Great Basin rangeland. J. Range Manage. 35: 152-158.
Hofmann, R. R., 1988. Anatomy of the gastro-intestinal tract. í The Ruminant
Animal. Digestive Physiology and Nutrition (ritstj. D. C. Church). A Reston Book, N.
J.
Howell, L. N., 1976. The development of a multi-camp system for a farm in the
southern Orange Free State. Proc. Grassld. Soc. Sth. Afr. 11: 53-58.
Ingvi Þorsteinsson, 1981. Gróðurskilyrði, gróðurfar, uppskera gróðurlenda og plöntuval
sauðfjár. ísl. landbún. 12: 85-99.
Janis, C., 1976. The evolution strategy of the Equidae and the origins of rumen and
cecal digestion. Evolution 30: 757-774.
Kothmann, M. M., 1984. "Concepts and principles underlying grazing systems": A
discussant paper. í Developing Strategies for Rangeland Management. West View
Press, Boulder: 903-916.
Maleckek, J. C., D. F. Balph & F. D. Provenza, 1986. Plant defense and herbivore
learning: Their consequences for livestock grazing system. í Grazing Research at
Northern Latitudes (ritstj. Ó. Guðmundsson): 193-210.