Using Biological Condition Gradient (BCG) model, bird indicators classified sites according to impact of human activities (see Figure 1 and 2). Detailed work is underway to use other taxa groups (e.g. Macro-invertebrates, mammals, fish, plants, amphibians and reptiles) for assess the health integrity of the wetland sites.
Figure 1. The number of species decreases with increase in human impacts in Upper Tana region, Kenya
Figure 2. Classification of sites based on BCG model in Upper Tana region, Kenya