Rethinking animal domestication

An article in the NY Times summarizes some interesting recent thinking about the beginning of animal domestication in the Mediterranean. It is based on an article in PNAS by Melinda Zader at the University of Pennsylvania Museum of Archaeology and Anthropology. I leaned about it via Dienekes’ Anthropology Blog, where you’ll find some additional links and some interesting comments.

The conventional way to time animal domestication has been to look for smaller boned animals in the archaelological record. But it seems that if you instead look for the first signs of human management of herds, rather than the morphological signal, you can push the date of domestication back a thousand years, to 11,000 years ago. There were multiple domestications of each livestock species, and different species originated in different areas within the northern arc of the Fertile Crescent. Then it seems people moved these livestock, and the associated crops, by sea across and along the Mediterranean. These seafaring colonists established coastal Neolithic enclaves, from which agriculture spread inland. There was also “adoption of domesticates and domestic technologies by indigenous populations and the local domestication of some endemic species.”

It looks like we may be going back to a model of agricultural expansion based on the movement of people, rather than on the diffusion of technologies.

News from the road

Apologies for the light blogging lately, but both Jeremy and I are on the road and busy with other stuff. When last seen, Jeremy was on vacation in Maine, dealing what will probably be the mortal blow to its lobster population. And I’ve been in and out of meetings all week, but I’ve got a couple of days off now and may have time to catch up on the old feed reader.

This is a good place to do that. I’m visiting the Centro Agronómico Tropical de Investigación y Enseñanza (CATIE) in Turrialba, Costa Rica. They have a very pleasant campus in a spectacular area with a well-developed ecotourism industry:

CATIE has a botanic garden and an active seedbank for forest species. But it also has an interest in agrobiodiversity conservation, with very important field genebanks of cacao, coffee and peach palm, and a crop seed genebank specializing in local vegetables, maize and beans. More later.

Tules to the rescue

The U.S. Geological Survey is growing tules and cattails on about 15 acres on Twitchell Island, about 5.7 square miles of rich but fragile peat soil 30 miles south of Sacramento.

Not particularly inspiring at first glance, but then I googled “tule,” a word I hand’t come across before. I figured cattails would be some kind of Thypha. Tules turn out to be types of sedges, although some people seem to use the words interchangeably, or indeed together. Anyway, tules have an interesting ethnobotany in the American Southwest, along with other geophytes.

Rice ups and downs

The agricultural industry can seem pretty strange at times. Take rice, for example. There were two very contrasting stories on this crop in the news today. On the one hand, it is making a comeback in Romania, fueled by cheap land, labour and water. But on the other, acreage is plummeting in Korea. That’s due to changes in local consumption patterns and the move towards cash crops like ginseng. Given high world prices, one would have thought that Asian entrepreneurs would be jumping at the chance to supply the European market. But of course, some Asian countries have put in place export bans.