THE PREDATION OF PERENNIAL GRASS SEEDS IN TRANSVAAL SAVANNA GRASSLANDS

被引:15
作者
CAPON, MH
OCONNOR, TG
机构
关键词
D O I
10.1016/S0254-6299(16)31105-X
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Up to 87% of seed was removed after 3 days, with ants removing up to 55% of the total available seed. Combined predation by rodents and ants resulted in an exponential pattern of disappearance of seeds, whereas the consistent removal of individual seeds by ants resulted in a linear pattern of disappearance of seeds. There was limited selection by ants for the smaller-seeded grass species. -from Authors
引用
收藏
页码:11 / 15
页数:5
相关论文
共 34 条
[1]  
Andersen A.N., Ashton D.H., Rates of seed removal by ants at heath and woodland sites in southeastern Australia, Aust. J Ecol., 10, pp. 381-390, (1985)
[2]  
Bartholomew B., Bare zone between California shrub and grassland communities: the role of animals, Science, 170, pp. 1210-1212, (1970)
[3]  
Brown J.H., Davidson D.W., Competition between seed-eating rodents and ants in desert ecosystems, Science, 196, pp. 880-882, (1976)
[4]  
Brown J.H., Grover J.J., Davidson D.W., Lieberman G.A., A preliminary study of seed predation in desert and montane habitats, Ecology, 56, pp. 987-992, (1975)
[5]  
Campbell M.H., Theft by harvesting ants of pasture seed broadcast on unploughed land, Aust. J. Exp. Agric. Anim. Husb., 6, pp. 334-338, (1966)
[6]  
Champness S.S., Morris K., The population of buried weed seeds in relation to contrasting pasture and soil types, J. Ecol., 36, pp. 149-173, (1948)
[7]  
Chippendale H.G., Milton W.E.J., On the viable seeds present in the soil beneath pastures, J. Ecol., 22, pp. 508-531, (1934)
[8]  
Davidson D.W., Samson D.A., Inouye R.S., Granivory in the Chihuahan desert: interactions within and between trophic levels, Ecology, 66, pp. 486-502, (1985)
[9]  
Fry C.H., Birds in savanna ecosystems, (1983)
[10]  
Harper J.L., (1977)