In yesterday’s WPI Middle East, Mediterranean and Africa Regional analysis report, it was noted that Kenyan farmers are switching from growing maize to growing sweet potatoes. The latter being easier to grow than drought sensitive maize and netting three crops per year. But whether maize or sweet potatoes, rainfall is still necessary and FAO data shows that Kenya’s production of both crops had been declining.
Sweet potatoes can yield up to 10-times or more the weight per hectare, but both crops in Kenya have been relatively volatile.
There are also important nutritional tradeoffs. Where macronutrients are important, maize has a slight edge. And when looked at for micronutrients, the edge goes to sweet potatoes...
A microlith is a small stone tool usually made of flint or chert and typically several centimeters in length and half a centimetre wide. They were made by humans from at least the Upper Paleolithic, across Africa, Europe, Asia and Australia. The microliths were used in spear points and arrowhea...
Kiwengwa/Pongwe Forest Reserve Kiwengwa/Pongwe Forest Reserve is located on the northeast coast of Unguja, 20 kilometres (12 mi) from the Town. The reserve is an important biodiversity spot in the coral rag zone. The forest reserve is rich both in faunal and floral species. The faunal species r...
The Olympic marmot (Marmota olympus) is a rodent in the squirrel family, Sciuridae. It occurs only in the U.S. state of Washington, at the middle elevations of the Olympic Peninsula. The closest relatives of this species are the hoary marmot and the Vancouver Island marmot. In 2009, it was decl...
The Alaska marmot (Marmota broweri), also known as the Brooks Range marmot[3] or the Brower's marmot,[4] is a species of rodent in the family Sciuridae. Once considered to be the same species as the hoary marmot, it is now known to be unique. Alaska marmots are found in the scree slopes of the...
