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This paper details changes to the BEAM models, RRYIELD and RRECON, which are two of a series of bioeconomic models developed by the Bioeconomic Agroforestry Modelling (BEAM) project. The RRYIELD model deals with the biophysical components of a rubber-based agroforestry system. It focuses on the c...


Grist, P.Menz, K.Thomas[Modified BEAM rubber agroforestry models: RRYIELD and RRECON]Modified BEAM rubber agroforestry models: RRYIELD and RRECON

The classical Leslie matrix methodology is extended to describe the life cycle of the brown ear tick (R. appendiculatus), incorporating both within and between stage transitions of the population. We use data from the highveld of Zimbabwe Reported in Short et al. (1989a,b). The model incorporates...


Mwambi, H.G.Odhiambo, J.W.Duchateau, L.[A multiple matrix model to study the population dynamics of R. appendiculatus in Zimbabwe]A multiple matrix model to study the population dynamics of R. appendiculatus in Zimbabwe

Representation of land-use and hydrologic interactions in respective models has traditionally been problematic. The use of static land-use in most hydrologic models or that of the use of simple hydrologic proxies in land-use change models call for more integrated approaches. The objective of this...


Yalew, S.G.Pilz, T.Schweitzer, C.Liersch, S.Kwast, J. van derGriensven, Ann vanMul, Marloes L.Dickens, ChrisZaag, P. van der[Coupling land-use change and hydrologic models for quantification of catchment ecosystem services]Coupling land-use change and hydrologic models for quantification of catchment ecosystem services
Sommer, RolfBatchelor, WDWhite, Jeffrey W.Jones, James W.Gijsman, AJPorter, C.H.[Modelling conservation agriculture]Modelling conservation agriculture

Multivariate logistic regression models are mostly used to identify risk factors associated withthe occurrence of particular disease processes. Logistic regression models have also been used as tools for veterinary diagnosis by providing the probability of a particular disease in an individual an...


Pfeiffer, Dirk U.Duchateau, L.Kruska, R.L.Ushewokunze-Obatolu, U.Perry, Brian D.[A spatially predictive logistic regression model for occurrence of theileriosis outbreaks in Zimbabwe]A spatially predictive logistic regression model for occurrence of theileriosis outbreaks in Zimbabwe
Autor: Rojas, T.

The workshop held at Bioversity International in Rome, Italy, from 7 – 8 May 2015 Brought together a group of researchers and members of CGIAR centers, and other institutions who are interested in modelling biodiversity and ESS using geospatial data. The workshop focused on modeling at differe...


Rojas, T.[Report. Workshop on Integrating Biodiversity and Ecosystem Services into Foresight Models.]Report. Workshop on Integrating Biodiversity and Ecosystem Services into Foresight Models.
Rakotoarisoa, M.[Explaining the durations between changes in countries investment ratings using a competing risks model with random-effects]Explaining the durations between changes in countries investment ratings using a competing risks model with random-effects

A dynamic agriucltural land-use model based on a Markov process and governed by a few simple decision rules is described. Currently, the model is purely conceptual, and was designed with one objective: to investigate the possibility of constructing top-down land-use models based on as few process...


Thornton, Philip K.Jones, Peter G.[A conceptual approach to dynamic land-use modelling]A conceptual approach to dynamic land-use modelling

Describes small ruminant production systems for the humid areas of southern Nigeria. Discusses the differences in ownership patterns between men and women; household relations particularly decision making processes related to the potential use of browse as fertilizer or feed; and the unique natur...


Okali, C.Sumberg, J.E.[Sheep and goats, men and women: Household relations and small ruminant development in southwest Nigeria]Sheep and goats, men and women: Household relations and small ruminant development in southwest Nigeria

In semiarid West Africa, inorganic fertilizer use and sustainability objectives are complementary. With increasing population pressure and low levels of purchased inputs, crop yields in many regions are declining. Moderate use of inorganic fertilizer is required for increasing yields in a sustain...


Shapiro, Barry I.Sanders, J.H.[Fertilizer use in semiarid West Africa: Profitability and supporting policy]Fertilizer use in semiarid West Africa: Profitability and supporting policy

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