How it works
The Biodiversity Intactness Index (BII) assigns a score between 0% and 100% to each ‘pixel’ across sub-Saharan Africa based on biodiversity experts’ advice on how various populations of species are affected by the land use and other human activities within that area. Since it is designed to integrate data from a wide range of land uses, species and environments, the BII offers a holistic perspective on the state of biodiversity in a particular region. The BII can be calculated at different scales (for example, at a national, province or municipal level) and for different species groups (for example, for mammals, reptiles or plants).
The main outputs for this project are (1) the ‘bii4africa’ dataset of expert estimates of the impact of sub-Saharan Africa’s land uses on its diverse fauna and flora, which was used to produce (2) a comprehensive assessment and interactive map of BII across sub-Saharan Africa. You can also learn more about the experts and the landscapes across Africa in which the experts work, in our interactive google earth story.
Check this page for updates on project outputs and impacts.
Keep me updated!
We used an “ecosystem energetics” approach to quantify how energy flows through food webs—from sunlight captured by plants to the animals that consume it. Using
Here you will find an interactive map of sub-Saharan Africa’s remaining biodiversity intactness. The Biodiversity Intactness Index (BII) indicates the average remaining proportion of ‘intact’
You can explore the landscapes across Africa where the contributing experts work in this google earth story.
Here you will find the open-access bii4africa dataset, which was co-produced by 200 contributing experts in African biodiversity. It contains intactness scores representing terrestrial vertebrates (tetrapods: ±5,400 amphibians, reptiles, birds, mammals) and vascular plants (±45,000 forbs, graminoids, trees, shrubs) in sub-Saharan Africa across the region’s major land uses and intensities.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.