D. J. Tolsma

Nutrients in Soil and Vegetation Around Two Artificial Waterpoints in Eastern Botswana

D. J. Tolsma, W. H. O. Ernst, R. A. Verwey · Journal of Applied Ecology · 1987 · 124 citations

Soil Property, Biogeochemistry, Engineering +14

Seasonal Variation of Nutrient Concentrations in a Semi-Arid Savanna Ecosystem in Botswana

D. J. Tolsma, W. H. O. Ernst, Rudo A. Verweij et al. · Journal of Ecology · 1987 · 102 citations

Semi-arid Savanna Ecosystem, Biogeochemistry, Terrestrial Ecosystem +6

Predation of Seeds of Acacia Tortilis by Insects

W. H. O. Ernst, D. J. Tolsma, Jean Decelle · Oikos · 1989 · 64 citations

Seed Predation, Botany, Plant-insect Interaction +8

Predispersal seed predation in native leguminous shrubs and trees in savannas of southern Botswana

W. H. O. Ernst, Jean Decelle, D. J. Tolsma · African Journal of Ecology · 1990 · 37 citations

Engineering, Insect Conservation, Entomology +17

Dormancy and Germination of Semi-Arid Annual Plant Species, Tragus berteronianus and Tribulus terrestris 3 ) 3)Dedicated to Prof. Dr. H. Walter on occasion of his 90th birthday.

W. H. O. Ernst, D. J. Tolsma · Flora · 1988 · 33 citations

Biology, Engineering, Botany +6