VOICES Ideas and Insight From Explorers
Tag archives for Savannah
By Jeremy Swanson On this World Wildlife Day, we reflect on the past, look at the present, and talk about our dreams for the future, of lions and their roars in Tanzania and East Africa. In protecting lions and supporting communities through Living Walls, the African People & Wildlife Fund (APW) can now…
During our field surveys to better understand the primate diversity of north-eastern Uganda, we seek the least travelled routes and those areas for which primates have never been surveyed. During our explorations in February 2015 we encountered many devastating bushfires.
In dry ecosystems like Namibia, where fairy circles are common, competition for water is fierce. Therefore, while we may see a calm savannah landscape, fierce resource competition is actually being waged below the surface, at root level.
“We hypothesize that these barren spots arise due to below-ground resource competition between grasses,” states the report. “Enhanced growth in individuals that are strong competitors for below-ground resources results in the decline in growth of neighboring individuals, thus forming larger interspaces or barren patches.”
In other words, whoever wins the water war essentially condemns his neighboring grasses to death by dehydration, creating a barren patch – the nexus of the fairy circle.