Grazing optimization and nutrient cycling: Potential impact of large herbivores in a savanna system

Ecological Applications

Volumn 9, Issue 3, 1999, Pages 784-797

  De Mazancourt, Claire ^a,b   Loreau, Michel ^a   Abbadie, Luc ^a  

^a ECOLE NORMALE SUPÉRIEURE   (France)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

Enhancement of primary production; Grazing optimization; Herbivores; Herbivory; Hyparrhenia diplandra; Ivory Coast; Kobus kob; Lamto savanna; Nitrogen budget; Nitrogen cycle; Nitrogen cycle model in a savanna ecosystem; Primary production; Syncerus caffer

Indexed keywords

NITROGEN; NUTRIENT CYCLING; PLANT ANIMAL INTERACTION; SAVANNA;

GRAZING; NITROGEN; NUTRIENT CYCLING; NUTRIENT LIMITATION; PRIMARY PRODUCTION; SAVANNA;

COTE D'IVOIRE; LAMTO;

ANIMALIA; BUBALUS; HYPARRHENIA; HYPARRHENIA DIPLANDRA; KOBUS KOB; SYNCERUS CAFFER;

EID: 0033178783     PISSN: 10510761     EISSN: None     Source Type: Journal    
DOI: 10.1890/1051-0761(1999)009[0784:GOANCP]2.0.CO;2     Document Type: Article

References (103)

1. Abbadie, L. 1983. Contribution à l'étude de la production primaire et du cycle de l'azote dans les savanes de Lamto (Côte d'Ivoire). Travaux des chercheurs de la station de Lamto, volume 1. Université d'Abidjan, Abidjan, Ivory Coast.
2. -. 1984. Evolution saisonnière du stock d'azote dans la strate herbacée d'une savane soumise au feu en Côte d'Ivoire. Acta Oecologica Oecologia Plantarum 5:321-334.
3. -. 1990. Aspects fonctionnels du cycle de l'azote dans la strate herbacée de la savane de Lamto. Dissertation. Université Pierre et Marie Curie, Paris, France.
4. Abbadie, L., and R. Lensi. 1990. Carbon and nitrogen mineralization and denitrification in a humid savanna of West Africa (Lamto, Côte d'Ivoire). Acta Oecologica 11:717-728.
5. Abbadie, L., A. Mariotti, and J. C. Menaut. 1992. Independence of savanna grasses from soil organic matter for their nitrogen supply. Ecology 73:608-613.
6. 2 en savane de Lamto. Revue d'Ecologie et de Biologie du Sol 13:529-544.
7. Ball, R., D. R. Keeney, P. W. Theobald, and P. Nes. 1979. Nitrogen balance in urine-affected areas of a New Zealand pasture. Agronomy Journal 71:309-314.
8. Bazely, D. R., and R. L. Jefferies. 1985. Goose faeces: a source of nitrogen for plant growth in a grazed salt marsh. Journal of Applied Ecology 22:693-703.
9. Bazely, D. R., and R. L. Jefferies. 1986. Changes in the composition and standing crop of salt-marsh communities in response to the removal of a grazer. Journal of Ecology 74:693-706.
10. Bazely, D. R., and R. L. Jefferies. 1989. Leaf and shoot demography of an arctic stoloniferous grass, Pucinellia phryganodes, in response to grazing. Journal of Ecology 77:811-822.
11. Belsky, A. J. 1986. Does herbivory benefit plants? A review of the evidence. The American Naturalist 127:870-892.
12. -. 1987. The effects of grazing: confounding of ecosystem, community, and organism scales. American Naturalist 129:777-783.
13. Belsky, A. J., W. P. Carson, C. L. Jense, and G. A. Fox. 1993. Overcompensation by plants: herbivore optimization or red herring? Evolutionary Ecology 7:109-121.
14. Bergelson, J., T. Juenger, and M. J. Crawley. 1996. Regrowth following herbivory in Ipomopsis aggregata: compensation but not overcompensation. American Naturalist 148:744-755.
15. Bourlière, F., E. Minner, and R. Vuattoux. 1974. Les grands mammifères de la région de Lamto, Côte d'Ivoire. Mammalia 38:433-447.
16. Bouwmeester, R. J. B., P. L. G. Vlek, and J. M. Stumpe. 1985. Effect of environmental factors on ammonia volatilization from a urea-fertilized soil. Soil Science Society of America Journal 49:376-381.
17. Cargill, S. M., and R. L. Jefferies. 1984a. The effects of grazing by Lesser Snow Geese on the vegetation of a subArctic salt marsh. Journal of Applied Ecology 21:669-686.
18. Cargill, S. M., and R. L. Jefferies. 1984b. Nutrient limitation of primary production in a sub-Arctic salt marsh. Journal of Applied Ecology 21:657-668.
19. Carpenter, S. R., and J. F. Kitchell. 1984. Plankton community structure and limnetic primary production. American Naturalist 124:159-172.
20. Carran, R. A., P. R. Ball, P. W. Theobald, and M. E. G. Collins. 1982. Soil nitrogen balances in urine-affected areas under two moisture regimes in Southland. New Zealand Journal of Experimental Agriculture 10:377-381.
21. César, J. 1971. Etude quantitative de la strate herbacée de la savane de Lamto (Moyenne Côte d'Ivoire). Thesis. Université Pierre et Marie Curie, Paris, France.
22. -. 1992. La production biologique des savanes de Côte d'Ivoire et son utilisation par l'homme. Biomasse, valeur pastorale et valeur fourragère. Dissertation. Université Pierre et Marie Curie, Paris, France.
23. de Mazancourt, C., and M. Loreau. In press. Grazing optimization, nutrient cycling, and spatial heterogeneity of plant-herbivore interactions: should a palatable plant evolve? Evolution.
24. de Mazancourt, C., M. Loreau, and L. Abbadie. 1998. Grazing optimization and nutrient cycling: when do herbivores enhance plant production? Ecology 79:2242-2252.
25. Denmead, O. T., and J. R. Simpson, and J. R. Freney. 1974. Ammonia flux into the atmosphere from a grazed pasture. Science 185:609-610.
26. De Rham, P. 1973. Recherches sur la minéralisation de l'azote dans les sols des savanes de Lamto (Côte d'Ivoire). Revue d'Ecologie et de Biologie du Sol 10:169-196.
27. Detling, J. K. 1988. Grasslands and savannas: regulation of energy flow and nutrient cycling by herbivores. Pages 131-148 in L. R. Pomeroy and J. J. Alberts, editors. Concepts of ecosystem ecology. Springer-Verlag, New York, New York, USA.
28. Devineau, J. L. 1975. Etude quantitative des forêts de Lamto (Côte d'Ivoire). University of Paris, Paris, France.
29. Dyer, M. I. 1975. The effects of Red-winged Blackbird (Agelaius phoeniceus L.) on biomass of corn grains (Zea mays L.). Journal of Applied Ecology 12:719-726.
30. Dyer, M. I., and U. G. Bokhari. 1976. Plant-animal interactions: studies of the effects of grasshopper grazing on blue grama grass. Ecology 57:762-772.
31. Dyer, M. I., D. L. DeAngelis, and W. M. Post. 1986. A model of herbivore feedback on plant productivity. Mathematical Biosciences 79:171-184.
32. Dyer, M. I., C. L. Turner, and T. R. Seastedt. 1993. Herbivory and its consequences. Ecological Applications 3:10-16.
33. Floate, M. J. S. 1981. Effects of grazing by large herbivores on nitrogen cycling in agricultural ecosystems. Pages 585-601 in F. E. Clark and T. Rosswall, editors. Terrestrial Nitrogen Cycles, Stockholm, Sweden.
34. Frank, D. A., R. S. Inouye, N. Huntly, G. W. Minshall, and J. E. Anderson. 1994. The biogeochemistry of a northtemperate grassland with native ungulates: nitrogen dynamics in Yellowstone National Park. Biogeochemistry 26: 163-188.
35. Frank, D. A., and Y. Zhang. 1997. Ammonia volatilization from a seasonally and spatially variable grazed grassland: Yellowstone National Park. Biogeochemistry 36:189-203.
36. Gautier, L. 1990. Carte du recouvrement ligneux de la réserve de LamtoDocument du Conservatoire et Jardins Botaniques de Genève. Conservatoire et Jardins Botaniques de Genève, Geneva, Switzerland.
37. Gillingham, A. G., and C. During. 1973. Pasture production and transfer of fertility within a long-established hill pasture. New Zealand Journal of Experimental Agriculture 1: 227-232.
38. Glemin, S. 1996. Mise au point d'une méthode de recensement de grands herbivores dans une savane de type mosaique. Magistère BMC. ENS, Paris, France.
39. Hik, D. S., and R. L. Jefferies. 1990. Increases in the net above-ground primary production of a salt-marsh forage grass: a test of the predictions of the herbivore-optimization model. Journal of Ecology 78:180-195.
40. Hilbert, D. W., D. M. Swift, J. K. Detling, and M. I. Dyer. 1981. Relative growth rates and the grazing optimization hypothesis. Oecologia 51:14-18.
41. Hobbs, N. T., D. S. Schimel, C. E. Owensby, and D. S. Ojima. 1991. Fire and grazing in the tallgrass prairie: contingent effects on nitrogen budget. Ecology 72:1374-1382.
42. Hochberg, M. E., J. C. Menaut, and J. Gignoux. 1994. The influences of tree biology and fire in the spatial structure of the West African savannah. Journal of Ecology 82:217-226.
43. Holland, E. A., W. J. Parton, J. K. Detling, and D. L. Coppock. 1992. Physiological responses of plant populations to herbivory and their consequences for ecosystem nutrient flow. American Naturalist 140:685-706.
44. Huntly, N. 1995. How important are consumer species to ecosystem functioning? Pages 72-83 in J. Lawton, editor. Linking species and ecosystems. Chapman and Hall, New York, New York, USA.
45. Jarvis, S. C., D. J. Hatch, and D. H. Roberts. 1989. The effects of grassland management on nitrogen losses from grazed swards through ammonia volatilization: the relationship to excretal N returns from cattle. Journal of Agricultural Science 112:205-216.
46. Jeltsch, F., S. J. Milton, W. R. J. Dean, and N. van Rooyen. 1996. Tree spacing and coexistence in semiarid savannas. Journal of Ecology 84:583-595.
47. Keya, N. C. O. 1973. The effect of N and P fertilizers on the productivity of Hyparrhenia grassland. East African Agricultural and Forestry Journal 39:195-200.
48. Kjøller, A., and S. Struwe. 1994. Analysis of fungal communitites on decomposing beech litter. Pages 191-199 in K. Ritz, J. Dighton, and K. E. Giller, editors. Beyond the biomass. John Wiley and Sons, New York, New York, USA.
49. Kotanen, P., and R. L. Jefferies. 1987. The leaf and shoot demography of grazed and ungrazed plants of Carex subspathacea. Journal of Ecology 75:961-975.
50. Lamotte, M. 1977. Observations préliminaires sur les flux d'énergie dans un écosystème herbacé tropical, la savane de Lamto (Côte d'Ivoire). Géo-Eco-Trop 1:45-63.
51. Lamotte, M. 1982. Consumption and decomposition in tropical grassland ecosystem at Lamto, Ivory Coast. Pages 415-429 in B. Huntly and B. Walker, editors. Ecology of Tropical Savannas. Springer-Verlag, Berlin, Germany.
52. Langford, A. O., F. C. Fehsenfeld, J. Zachariassen, and D. S. Schimel. 1992. Gaseous ammonia fluxes and background concentrations in terrestrial ecosystems of the United States. Global Biogeochemical Cycles 6:459-483.
53. Lavelle, P. 1978. Les vers de terre dans la savane de Lamto (Côte d'Ivoire): peuplements, populations et fonctions dans l'écosytème. 12. Publications du Laboratoire de Zoologie de l'ENS, Paris, France.
54. Lavelle, P., and R. Schaefer. 1974. Les sources de nourriture des organismes du sol dans les savanes de Lamto. Bulletin de Liaison des Chercheurs de Lamto 5:27-37.
55. Le Roux, X. 1995. Etude et modélisation des échanges d'eau et d'énergie sol-végétation-atmosphère dans une savane humide (Lamto, Côte d'Ivoire). Dissertation. Université Pierre et Marie, Curie, Paris, France.
56. 2 assimilation in a West African humid savanna during the early growing season. Journal of Tropical Ecology 11:529-545.
57. Lecordier, C. 1974. Analyse d'un écosystème tropical humide: la savane de Lamto (Côte d'Ivoire). Le climat dans la région de Lamto. Bulletin de Liaison des Chercheurs de Lamto 1:45-103.
58. Lensi, R., A. M. Domenach, and L. Abbadie. 1992. Field study of nitrification and denitrification in a wet savanna of West Africa (Lamto, Côte d'Ivoire). Plant and Soil 147: 107-113.
59. Lockyer, D. R., and D. C. Whitehead. 1990. Volatilization of ammonia from cattle urine applied to grassland. Soil Biology and Biochemistry 22:1137-1142.
60. Loreau, M. 1995. Consumers as maximizers of matter and energy flow in ecosystems. American Naturalist 145:22-42.
61. Lotero, J., W. W. Woodhouse, Jr., and R. G. Petersen. 1966. Local effect on fertility of urine voided by grazing cattle. Agronomy Journal 58:262-265.
62. Martin, S. 1990. Modélisation de la dynamique et du rôle d'une population de vers de terre Millsonia Anomala dans les savanes humides de Côte d'Ivoire. Dissertation. Université Pierre et Marie Curie, Paris, France.
63. Mathews, J. N. A. 1994. The benefits of overcompensation and herbivory: the difference between coping with herbivores and linking them. American Naturalist 144:528-533.
64. McNaughton, S. J. 1976. Serengeti migratory wildebeest: facilitation of energy flow by grazing. Science 191:92-94.
65. -. 1979. Grazing as an optimization process: grassungulate relationships in the Serengeti. American Naturalist 113:691-703.
66. -. 1983. Compensatory plant growth as a response to herbivory. Oikos 40:329-336.
67. -. 1985. Ecology of a grazing ecosystem: the Serengeti. Ecological Monographs 55:259-294.
68. -. 1986. On plants and herbivores. American Naturalist 128:765-770.
69. Medina, E., A. Mendoza, and R. Montes. 1978. Nutrient balance and organic matter production in the Trachypogon savannas of Venezuela. Tropical Agriculture (Trinidad) 55: 243-253.
70. Menaut, J.-C., and J. César. 1979. Structure and primary productivity of Lamto savannas. Ivory Coast. Ecology 60: 1197-1210.
71. Menaut, J.-C., J. Gignoux, C. Prado, and J. Clobert. 1990. Tree community dynamics in a humid savanna of the Côte-d'Ivoire: modelling the effects of fire and competition with grass and neighbours. Journal of Biogeography 17:471-481.
72. Milchunas, D. G., and W. K. Lauenroth. 1993. Quantitative effects of grazing on vegetation and soils over a global range of environments. Ecological Monographs 63:327-366.
73. Monaghan, R. M., and D. Barraclough. 1993. Nitrous oxide and dinitrogen emissions from urine-affected soil under controlled conditions. Plant and Soil 151:127-138.
74. Musa, M. M. 1968. Nitrogenous fertilizer transformations in the Sudan gezira soil. I. Ammonia volatilization losses following surface applications of urea and ammonium sulfate. Plant and Soil 27:413-421.
75. Nacro, H. B. 1997. Hétérogénéité fonctionnelle de la matière organique dans un sol de savane humide (Lamto, Côte d'Ivoire): caractérisation chimique et étude, in vitro, des activités microbiennes de minéralisation du carbone et de l'azote. Ecology. Université Pierre et Marie Curie, Paris, France.
76. Owen, D. F. and R. G. Wiegert. 1976. Do consumers maximize plant fitness? Oikos 27:488-492.
77. Owen, D. F., and R. G. Wiegert. 1981. Mutualism between grasses and grazers: an evolutionary hypothesis. Oikos 36: 376-378.
78. Paige, K. N., and T. G. Whitham. 1987. Overcompensation in response to mammalian herbivory: the advantage of being eaten. American Naturalist 129:407-416.
79. 15N balance under urine-affected areas of irrigated and non-irrigated clover-based pastures. Journal of Contaminant Hydrology 20:329-347.
80. Pastor, J., and Y. Cohen. 1997. Herbivores, the functional diversity of plant species, and the cycling of nutrients in boreal ecosystems. Theoretical Population Biology 51: 165-179.
81. Pochon, J., and I. Bacvarov. 1973. Données préliminaires sur l'activité microbiologique des sols de la savane de Lamto (Côte d'Ivoire). Revue d'Ecologie et de Biologie du Sol 10:35-43.
82. Raven, P. H., and G. B. Johnson. 1996. Biology. W. C. Brown, Dubuque, Iowa, USA.
83. Ruess, R. W., and S. J. McNaughton. 1987. Grazing and the dynamics of nutrient and energy regulated microbial processes in the Serengeti grasslands. Oikos 49:101-110.
84. Ruess, R. W., and S. J. McNaughton. 1988. Ammonia volatilization and the effects of large grazing mammals on nutrient loss from East African grasslands. Oecologia 77: 382-386.
85. Ryden, J. C., P. R. Ball, and E. A. Garwood. 1984. Nitrate leaching from grassland. Nature 311:50-53.
86. Schimel, D. S., W. J. Parton, F. J. Adamsen, R. G. Woodmansee, R. L. Senft, and M. A. Stillwell. 1986. The role of cattle in the volatile loss of nitrogen from a shortgrass steppe. Biogeochemistry 2:39-52.
87. Srivastava, D. S., and R. L. Jefferies. 1996. A positive feedback: herbivory, plant growth, salinity, and the desertification of an Arctic salt-marsh. Journal of Ecology 84:31 -42.
88. Stenseth, N. C. 1978. Do grazers maximize individual plant fitness? Oikos 31:299-306.
89. Stolp, H. 1988. Microbial ecology: organisms, habitat, activities. Cambridge studies in ecology. Cambridge University Press, Cambridge, UK.
90. Vail, S. G. 1992. Selection for overcompensatory plant responses to herbivory: a mechanism for the evolution of plant-herbivore mutualism. American Naturalist 139:1-8.
91. Vallis, I., L. A. Harper, V. R. Catchpoole, and K. L. Weier. 1982. Volatilization of ammonia from urine patches in a subtropical pasture. Australian Journal of Agricultural Research 33:97-107.
92. Vallis, I., D. C. I. Peake, R. K. Jones, and R. L. McCown. 1985. Fate of urea-nitrogen from cattle urine in a pasturecrop sequence in a seasonally dry tropical environment. Australian Journal of Agricultural Research 36:809-817.
93. van der Meijden, E., M. Wijn, and H. J. Verkaar. 1988. Defense and regrowth, alternative plant strategies in the struggle against herbivores. Oikos 51:355-363.
94. Villecourt, P. 1975. Apports d'azote minéral (nitrique et ammoniacal) par la pluie dans la savane de Lamto. Revue d'Ecologie et de Biologie du Sol 12:667-680.
95. Villecourt, P., and E. Roose. 1978. Charge en azote et en éléments minéraux majeurs des eaux de pluie, de pluviolessivage et de drainage dans la savane de Lamto (Côte d'Ivoire). Revue d'Ecologie et de Biologie du Sol 15:1-20.
96. Vitousek, P. M., and R. W. Howarth. 1991. Nitrogen limitation on land and in the sea: how can it occur? Biogeochemistry 13:87-115.
97. Walker, B. H., D. Ludwig, C. S. Holling, and R. M. Peterman. 1981. Stability of semi-arid savanna grazing systems. Journal of Ecology 69:473-498.
98. Westoby, M. 1989. Selective forces exerted by vertebrate herbivores on plants. Trends in Ecology and Evolution 4: 115-117.
99. Whitehead, D. C., and N. Raistick. 1991. Effects of some environmental factors on ammonia volatilization from simulated livestock urine applied to soil. Biology and Fertility of Soils 11:279-284.
100. Whitehead, D. C., and N. Raistick. 1992. Effects of plant material on ammonia volatilization from simulated livestock urine applied to soil. Biology and Fertility of Soils 13:92-95.
101. Whitehead, D. C., and N. Raistick. 1993. The volatilization of ammonia from cattle urine applied to soils as influenced by soil properties. Plant and Soil 148:43-51.
102. 15N-labelled urine in sheep and cattle urine patch areas of pasture soil. Plant and Soil 162:49-59.
103. Woodmansee, R. G., I. Vallis, and J. J. Mott. 1981. Grassland nitrogen. Pages 443-462 in F. E. Clark and T. Rosswall, editors. Terrestrial nitrogen cycles. Ecological Bulletins, Stockholm, Sweden.