International Journal of Limnology

We evaluated the impact of altitude on the biodiversity and water quality of 13 springs located from 82 to 1,189m a.s.l. on Mount Cameroon. Despite lower temperature and more oxygen at higher altitudes, diversity, including EPT did not increase. Therefore, African fauna reacts similarly to the faunas of other areas of the world. African species appear to be well adapted to warm and poorly oxygenated water compared to species from other parts of the world.

In this study, we tried to highlight the controlling factors of litter breakdown in African streams using 13 sites in the natural rainforest of South Cameroon. The goals of this study were to highlight the biological and physico-chemical determinants of leaf litter breakdown in streams and to compare those factors to other factors found in temperate and other tropical streams.

This study focuses on the effects of urban wastewater on macroinvertebrate communities in the upper Ouémé basin in Benin. We found similar responses in African invertebrates to those observed in other parts of the world. However, we unexpectedly observed a stronger impact during the wet season than during the dry season. Furthermore, community resilience did not depend primarily on the distance downstream of the wastewater input, but rather on a combination of several factors.