Welcome at the project page. Here you find a number of old projects and projects I am currently involved in. The former are kept for legacy reasons (keeping information and data available for download). You can filter the projects by subject in the blue bar below, or you can use the search function (in the top menu bar).


Save the tiger, save the grassland, save the water

The project Save the tiger! Save the Grasslands! Save the Water! is a multidisciplinary project carried out by a consortium of Dutch and Nepali partners, including the Innovative Bio-Monitoring research group (IBM) from the HAS University of Applied Sciences.

Invasive alien species

Working on invasive alien species (IAS)

Mapping (bio)diversity

Exploring ways to map biodiversity using different data and methods.

Dashboards and online maps

Exploring the possibilities to publish your maps and other content online

Sounds from nature

I like bird watching, and I would like to improve my skills in recognizing bird sounds, by recording bird sounds. Below some recordings of birds I often hear in the region I live.

Open source tools

Programs like R and GRASS GIS are incredible powerful. But occasionally, you’ll need a functionality that is not available yet. Luckily, depending on the kind of functionality, it isn’t terribly difficult to create your own scripts. In the past years I have created a few scripts that, I hope, are useful to others as well.

Data analysis and exploration

Agricultural research, development projects, conservation prioritization; it all has a spatial component. In geographic information system (GIS) analysis, a crucial step is to link knowledge to location.

Website of the foundation.

Vegetationmap 4 Africa

Information portal to support conservation, vegetation restoration and agroforestry

The atlas of the natural vegetation of Ethiopia

The atlas of the natural vegetation of Ethiopia, description and download

Potential Natural Vegetation for south-western and central Kenya

An atlas of the natural vegetation of southwest Kenya. Adapting old vegetation maps into easy-to-use decision support tools to help identify the best indigenous trees to grow on farms.