Foraging height levels and the risk of gastro-intestinal tract parasitic infections of wild ungulates in an African savannah eco-system

[1] Angus, M. D. (1978): Veterinary Helminthology. William Heinemann Medical Books Ltd., London Search in Google Scholar

[2] Apio, A. (2003): Foraging behaviour and gastrointestinal tract parasitic infections of the bushbuck (Tragelaphus scriptus) in Queen Elizabeth National Park, western Uganda. MSc. Thesis, Mbarara University of Science and Technology, Uganda Search in Google Scholar

[3] Apio, A., Wronski, T. (2005): Foraging behaviour and diet composition of bushbuck (Tragelaphus scriptus) in Queen Elizabeth National Park, Uganda. Afr. J. Ecol., 43: 1–8 http://dx.doi.org/10.1111/j.1365-2028.2005.00576.x10.1111/j.1365-2028.2005.00576.xSearch in Google Scholar

[4] Apio, A., Plath, M., Wronski, T. (2006a): Patterns of gastrointestinal parasitic infections in the bushbuck Tragelaphus scriptus from the Queen Elisabeth National Park, Uganda. J. Helminthol., 80: 213–218 Search in Google Scholar

[5] Apio, A., Plath, M., Wronski, T. (2006b): Localised defecation sites: a tactic to avoid re-infection by gastrointestinal tract parasites in bushbuck (Tragelaphus scriptus)? J. Ethol., 24: 85–90 http://dx.doi.org/10.1007/s10164-005-0166-210.1007/s10164-005-0166-2Search in Google Scholar

[6] Banks, D. J., Singh, R., Barger, I. A., Pratrap, B., Le Jambre, L. F. (1990): Development and survival of infective larvae of Haemonchus contortus and Trichostrongylus colubriformis on pasture in a tropical environment. Int. J. Parasitol., 20: 155–160 http://dx.doi.org/10.1016/0020-7519(90)90095-510.1016/0020-7519(90)90095-5Search in Google Scholar

[7] Bekele, T., Woldeab, T., Lahlou-Kassi, A., Sherington, J. (1992): Factors affecting morbidity and mortality on-farm and on station in the Ethiopian highland sheep. Acta Trop., 52: 99–109 http://dx.doi.org/10.1016/0001-706X(92)90025-S10.1016/0001-706X(92)90025-SSearch in Google Scholar

[8] Brunsdon, R. V. (1970): The spring rise phenomenon: seasonal changes in the worms burdens of breeding ewes and the availability of pasture infection. New Zeal. Vet. J., 18: 47–54 Search in Google Scholar

[9] Bürger, H. J., Stoye, M. (1968): Parasitologische Diagnostik (Teil II), Eizählung und Larvendifferenzierung. Therapogen Praxisdienst 3 Search in Google Scholar

[10] Cerling, T. E., Viehl, K. (2004): Seasonal diet changes of the forest hog (Hylochoerus meinertzhageni Thomas) based on the carbon isotopic composition of hair. Afr. J. Ecol., 42: 88–92 http://dx.doi.org/10.1111/j.1365-2028.2004.00500.x10.1111/j.1365-2028.2004.00500.xSearch in Google Scholar

[11] Coop, R. L., Sykes, A. R., Angus, K. W. (1982): The effect of three levels of intake of Ostertagia circumcincta larvae on growth rate, food intake and body composition of growing lambs. J. Agr. Sci., 98: 247–255 http://dx.doi.org/10.1017/S002185960004178210.1017/S0021859600041782Search in Google Scholar

[12] Chartier, C. (1991): Développement et survie d’Haemonchus contortus d’origine ovine sur parcelle a Bunia (Ituri, Zaire). Revue d’Elevage et de Médecine Vétérinaire des pays Tropicaux, 44: 169–174 Search in Google Scholar

[13] Chiejina, S. N., Fakae, B. B. (1984): Development and survival of infective larvae of gastrointestinal nematode parasites of cattle on pasture in eastern Nigeria. Res. Vet. Sci., 37: 148–153 Search in Google Scholar

[14] Dinnik, J. A., Dinnik, N. N. (1961): Observations on the longevity of Haemonchus contortus larvae in the Kenya highlands. Bull. Epizootic Dis. Afr., 9: 193–208 Search in Google Scholar

[15] Donald, A. D., Morley, F. H. W., Waller, P. J., Axelson, A., Donelly, J. R. (1978): Availability to grazing sheep of gastrointestinal nematode infection arising from summer contamination of pastures. Austr. J. Agr. Res., 29: 189–204 http://dx.doi.org/10.1071/AR978018910.1071/AR9780189Search in Google Scholar

[16] Evans, A. A. F. (1974): The effect of climate on plant and soil nematodes. In Taylor, A. E. R., Muller, R. (Eds): Effects of metereological factors upon parasites. Symposia of 12th British Society for Parasitology. Blackwell Scientific Publications, Oxford, London, pp. 53–77 Search in Google Scholar

[17] Ezenwa, V. O. (2004): Selective defecation and selective foraging: Antiparasite behavior in wild ungulates. Ethology, 110: 851–862 http://dx.doi.org/10.1111/j.1439-0310.2004.01013.x10.1111/j.1439-0310.2004.01013.xSearch in Google Scholar

[18] Field, C. R. (1968): A comparative study of the food habits of some wild ungulates in the Queen Elizabeth National Park, Uganda preliminary report. Symposium of the Zoological Society London, 21: 135–151 Search in Google Scholar

[19] Field, C. R. (1972): The food habits of wild ungulates in Uganda by analysis of stomach contents. E. Afr. Wildl., J., 10: 17–42 Search in Google Scholar

[20] Gibbs, H. C. (1967): Some factors involved in the spring rise phenomenon in sheep. In Soulsby, E. J. L. (Ed): Veterinary Medical Review “The reaction of the host to parasitism”. Proceedings of the Third International Conference of the World Association for Advances in Veterinary Parasitology, pp. 169–173 Search in Google Scholar

[21] Gibson, T. E. (1966): The ecology of the infective larvae of Trichostrongylus colubriformis. in Soulsby, E. J. L. (Ed): Biology of Parasites. Academic Press, London, pp. 2–13, 354 Search in Google Scholar

[22] Haschick, S. L., Kerley, G. I. H. (1997): Factors influencing forage preferences of bushbuck and boer goats for subtropical thicket plants. Afr. J. Range Forage Sci., 14: 49–55 Search in Google Scholar

[23] Hansen, J., Perry, B. (1990): The epidemiology, diagnosis and control of gastro-intestinal parasites of ruminants in Africa. A handbook. International Laboratory for Research on Animal Diseases, Nairobi Search in Google Scholar

[24] Kabasa, J. D. (1999): The nutritional ecology and effects of browse polyphenols in goats of the Ankole range land ecosystem in Uganda. PhD dissertation, Georg-August-University-Goettingen, Germany Search in Google Scholar

[25] Krecek, R. C., Hartman, R., Groeneveld, H. T., Thorne, A. (1995): Microclimatic effect on vertical migration of Haemonchus contortus and Haemonchus placei third-stage larvae on irrigated Kikuyu pasture. Onderstepoort J. Vet., 62: 117–122 Search in Google Scholar

[26] Lock, J. M. (1977): The vegetation of the Rwenzori National Park, Uganda. Bot. Jahrb. Syst., 98: 372–148 Search in Google Scholar

[27] Lock, J. M. (1985): Recent changes in the vegetation of Queen Elizabeth National Park, Uganda. Afr. J. Ecol., 23: 63–65 Search in Google Scholar

[28] Michel, J. F. (1976): The epdemiology and control of some nematode infections in grazing animals. Adv. Parasit., 14: 355–397 http://dx.doi.org/10.1016/S0065-308X(08)60517-510.1016/S0065-308X(08)60517-5Search in Google Scholar

[29] Micheal, J. F., Ollerenshaw, C.B. (1963): Helminth diseases of grazing animals. In Worden, A. N. et al. (Eds.): Animal Health, Production and Pasture. Longmans Green, London, pp. 445–457 Search in Google Scholar

[30] Ministry of Agriculture, Fisheries and Food, UK (1971): Manual of Veterinary parasitological laboratory technique. Technical Bulletin No. 18. Her majesty’s stationnary office, London, United Kingdom Search in Google Scholar

[31] Ocaido, M. (1995): Effects of diseases on developing mixed game and livestock ranching around Lake Mburu National Park, Uganda. MSc. thesis, Makerere University, Kampala, Uganda Search in Google Scholar

[32] Okiria, R. (1977): The behaviour and ecology of the bushbuck (Tragelaphus scriptus Pallas) in Rwenzori National Park, Uganda. MSc thesis, University of Moscow Search in Google Scholar

[33] Ollerenshaw, C. B., Smith, L. P. (1969): Meteriological factors and forecast of helminth disease. In Daves, B. (Ed): Advances in Parasitology. Academic Press, London, New York, pp. 283–323 Search in Google Scholar

[34] Onyali, I. O., Onwuliri, C. O. E., Ajayi, J. A. (1990): Development and survival of Haemonchus contortus larvae on pasture at Vom, Plateau State, Nigeria. Vet. Res. Com., 14: 211–216 http://dx.doi.org/10.1007/BF0034774010.1007/BF003477402382405Search in Google Scholar

[35] Owen-Smith, N. (1992): Grazers and Browsers: ecological and social contrasts among African ruminants. In Spitz, F., Janeau, G., Gonzalez, G., Aulagnier S. (Eds): ’ongules /Ungulates 91’: Proceedings of the International Symposium ‘ongules / Ungulates 91’, Toulouse — France, September 2–6, 1991. Societe Francaise Pour L’etude Et La Protection Des Mammiferes, Paris and Institut De Recherche Sur Les Grands Mammiferes, Toulouse, pp. 175–181 Search in Google Scholar

[36] Smits, C. M. M. (1986): Diet composition and habitat use of the West African bushbuck Tragelaphus scriptus scriptus (Pallas, 1776) during the first half of the dry season. S. Afr. J. Zool., 21: 89–94 Search in Google Scholar

[37] Soulsby, E. J. L. (1968) Helminths, Arthropods and Protozoa of domestic animals. Bailliere, Tindall and Cassell Ltd., London Search in Google Scholar

[38] Southcott, W. H., Major, G. W., Barger, I. A. (1976): Seasonal pasture contamination and availability of nematodes for grazing sheep. Austr. J. Agr. Res., 27: 277–289 http://dx.doi.org/10.1071/AR976027710.1071/AR9760277Search in Google Scholar

[39] Woodford, M. H. (1976): A survey of parasitic infestation of wild herbivores and their predators in the Rwenzori National Park, Uganda. Report to the Uganda Institute of Ecology, Rwenzori National Park, Kasese, Uganda Search in Google Scholar

[40] Zandri, E., Viskanic, P. (1992): Vegetation and Mapping in the Queen Elizabeth National Park, Kyambura Game Reserve and Kigezi Game Reserve. Uganda National Parks Technical Assistance to the Uganda Institute of Ecology, Agriconsulting, Italy. (Commission of the European Communities, EDF Project 6100.037.42.031) Search in Google Scholar