Mathilda had a post a few days ago which caught my eye, but I forgot to nibble it. Better late than never. She discusses a recent paper reporting on the archaeological excavation of Uan Afuda and other Early Holocene sites of the Acacus mountains, in the Libyan Sahara, and in particular the layers of animal dung that excavations uncovered. The paper suggests that these “dung layers are related to a forced penning of a ruminant, very likely Barbary sheep (Ammotragus lervia),” and that this is evidence of delayed use of resources designed to cope with lean periods. Mathilda goes on to hypothesize that cattle domestication keeping ((See comment from Mathilda.)) may have started in the Sahara — before the growing of crops — in a similar way.
Nibbles: Soy, Horse, Terroir, Sorghum, Ensete
- The joy of soy.
- Earliest known domestic horses.
- More than anyone could possibly want to know about biochar and biodiversity (Part III).
- Sorghum difference yield map, see how they grow.
- Mathilda on ensete in highland Ethiopia.
The spread of the ass
Great find by Mathilda: “The history and spread of donkeys in Africa,” by Roger Blench. It’s from the book Donkeys, people and development, edited by Paul Starkey and Denis Fielding. That came out of a 2004 Animal Traction Network for Eastern and Southern Africa workshop. There’s lots of other interesting stuff on the network’s site, including a donkey bibliography.
In brief:
- domesticated probably in Egypt/Nubia at the beginning of the Neolithic in Africa, 6,500 years ago
- but perhaps several times in regions of its former range no longer represented by its present-day distribution
- expansion paralleled that of cultivated sorghum
LATER: And a thousand year later, on another continent, it’s the horse’s turn.
Agrobiodiversity in trouble in Cameroon
Ivo Arrey Mbongaya of the African Centre for Community and Development in Cameroon has a blog on the Eldis Community and has recently discussed threats to two different sorts of agricultural biodiversity in his country. Apparently, goat rearing is in decline, because of the disappearance of grazing land, harsh policies about strays and the lack of veterinary services. He doesn’t say if a local breed is involved, however, and does make reference to “efforts by Heifer Cameroon to distribute cheap animals.”
Also in trouble is “eru,” or Gnetum africanum, a shrub whose leaves are consumed as a green vegetable. Unsustainable harvesting and land use changes are taking their toll, and Ivo recommends taking the plant into domestication.There’s been some work on that by ICRAF and others.
Nibbles: Indigenous knowledge, Buffalo, Wheat rust, Cassava, New Green Revolution, Environmentalism, Millennium Seedbank, USDA, Pig
- India’s Traditional Knowledge Digital Library a bulwark against piracy. Ahoy me mateys!
- Oh give me a home, where the buffalo-cow hybrid roamed.
- “We’ve found one of the most important disease resistance genes in wheat.”
- Cassava on its way to being a complete meal. Oh joy.
- Usual suspects debate GM.
- The history of the American wilderness movement deconstructed.
- Australia’s Northern Territory needs more collectors.
- “USDA People’s Garden announced today will eliminate 1,250 square feet of unnecessary paved surface at the USDA headquarters and return the landscape to grass.” Michelle likes it.
- Pig domestication, for Vavilov and now.