1,662 research outputs found
Soil detritivore functioning in heterogeneously contaminated soils
No full textVerhoef, H.A. [Promotor]Berg, M.P. [Copromotor]Faber, J.H. [Copromotor
Enterprise coherence governance
No full textContains fulltext :
114150.pdf (Publisher’s version ) (Open Access)Radboud Universiteit Nijmegen, 19 november 2013Promotor : Proper, H.A. Co-promotor : Verhoef, T.F.250 p
Food webs under stress : The structure, stability and functioning of stressed soil food webs
No full textVerhoef, H.A. [Promotor]Gestel, C.A.M. van [Copromotor
Trophic dynamics of communities.
No full textAlthough much of the attention to the trophic dynamics of communities is theoretical, empirical data on the different types of dynamics and the underlying mechanisms are increasingly reported. The dynamics of small food web modules, or simple webs, are compared with those of complex interactions. Food web modules are described as small systems that possess explicit dynamics. They can be seen as building blocks to construct more realistic food webs, which are subsets of the true complexity in trophic interactions in real ecosystems. It has been stated that in small food webs oscillating consumer-resource interactions occur in natural systems and that in chains of three or more levels trophic cascades seem to be important. Finally, new studies on the dynamics of complex interaction webs are mentioned, focusing on the consequences of specific patterning of interaction strengths across the web for the stability of the overall system.</p
Hydrology and biogeochemistry of tropical montane rain forests of contrasting stature in the Blue Mountains, Jamaica
No full textSimmers, I. [Promotor]Bruijnzeel, L.A. [Copromotor]Verhoef, H.A. [Copromotor
Agriculture-induced changes in mycorrhizal fungal assemblages: Implications for ecological risk assessment of transgenic crops
No full textHeijden, M.G.A. van der [Promotor]Verhoef, H.A. [Promotor]Röling, W.F.M. [Copromotor]Kiers, E.T. [Copromotor
Nitrification in acid coniferous forests: Some soils do, some soils don't
No full textNitrification is a key process in the global nitrogen cycle. Ammonia-oxidising bacteria (AOB) were long thought to be the sole microorganisms capable of autotrophic ammonia oxidation, the rate-limited step in nitrification. This thesis elucidates the relation between the presence of AOB, environmental factors and nitrification rates in the soil layer of acid coniferous forests. Especially, the question why some acid forests show nitrification while others do not, is addressed in this thesis.Verhoef, H.A. [Promotor]Roling, W.F.M. [Copromotor]Laverman, A.M. [Copromotor
The Journey That Saved Curious George: The True Wartime Escape of Margret and H.A. Rey
No full textMany years ago, two Jewish artists from Germany met in Brazil, started a business, fell in love, and got married. The Brazilians could not pronounce their German names, so the couple shortened them to H.A. and Margret Rey. While honeymooning in Europe, the Reys decided to stay in Paris so H.A. could pursue a career as a children\u27s book author and illustrator. During this time, H.A. started developing stories about a curious little monkey, influenced by the many monkeys he saw in Brazil. But Hitler\u27s forces delayed H.A.\u27s plans for the little monkey until he and Margret could safely escape Europe
Achter de schermen. Het dagelijks leven aan het hof van de graven van Blois
No full textReview of H.A. Verhoef, De graven van Blois, heren van Schoonhoven en Gouda. Dagelijks leven aan het Hof opgetekend uit de middeleeuwse jaarrekeningen (Schoonhoven: Historische Uitgaven Schoonhoven, 2016, 247 p., ill., index)
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