INIFAP has photos of progress in building Mexico’s new National Genetic Resources Centre. It’s about a third finished, and needs to be ready in time for this year’s celebrations of the bicentenary of Mexican independence. Total cost is about US$ 30 million, if I interpret the figure in the text correctly. I hope the recurrent costs necessary to keep the place running once it’s built will also be forthcoming with similar generosity.
Where the (European) buffalo roam
Again from Michael Kubisch.
The European bison or wisent, like its North American counterpart, has faced near extinction during its recent history. Both species have been brought back from the brink starting with relatively small populations — in the case of the European bison perhaps with fewer than 50 individuals. The wisent population now numbers somewhere over 3000, but these animals suffer from low genetic diversity and are furthermore separated into a relatively large number of often very small and isolated herds. This is problematic because it is thought that the survival of a species depends on a minimum number of breeding individuals, although there isn’t necessarily much agreement on what that number needs to be.
There is consensus, however, that the fractured nature of the European bison population is unlikely to guarantee its long-term survival. What is needed is a larger breeding population containing perhaps as many as a thousand individuals. Fortunately, it isn’t necessary for these animals to belong to a single contiguous population, as long as smaller populations exist on stretches of connected land that enable them to come into contact with each other. But even that requires suitable land and lots of it — not an easy quest on a crowded continent.
But there is hope. In a recent study described in the journal Conservation Biology, a multinational group of researchers has determined that the Carpathian Mountains could provide a possible habitat for a wisent metapopulation. This area already contains a number of smaller herds, has the type of vegetation wisent seem to like and (in part thanks to a decrease in human population pressures), and consists of relatively large tracts of suitable land. Implementing this idea would obviously require both existing herds to be enlarged and new ones to be established. Whether the means can be found to accomplish this is hard to predict, but there is no doubt that it would constitute a significant step towards preserving one of Europe’s most magnificent herbivores.
Featured: More origins
Dave Wood muses on the successional stage of crop progenitors and the origins of agriculture:
…if early crops were directly derived from massive pure stands of wild relatives, then such crops have an ecological heritage of stability. If so, we can now stop worrying about stability based on diversity in agro-ecosystems and start worrying about just what factors once determined the obvious stability of climax vegetation of crop relatives of our major cereals.
Corn-fed is grass-fed
See if you can spot the problems with this line of reasoning:
- Grass-fed beef is good for you, the environment, and everything.
- Corn (maize, and barley, and wheat) is a grass.
- Corn-fed beef is grass-fed beef.
- Corn-fed beef is good for you, the environment, and everything.
Over at Muck and Mystery Gary does a fine job of unpacking all that logic. Sample:
[T]his would make some sense if they fed the whole corn plant to their cattle rather than just the seeds, and did so while the plant was still alive and vegetative, so that then cattle would get some green with all of that yellow. Better still, grow corn varieties bred for grazing (they exist) that produced more leaf, more nutritious stalks, and less seeds.
There’s more too, on how exaggerated claims from one end of a spectrum call forth exaggerated claims from the other, rather than the nuanced interpretation they really need. Gary talks about backlash. I suspect anyone trying to make sense of the arguments, in beef as in just about anything, would suffer whiplash instead.
Research on healthier food systems
Food Systems and Public Health: Linkages to Achieve Healthier Diets and Healthier Communities is a special edition of the Journal of Hunger and Environmental Nutrition. Scads of research papers and articles, all free to download, at least some of which almost certainly will have a bearing on one of our main interests, the use of agricultural biodiversity to feed into dietary diversity, with all the benefits that can bring.
So many papers, so little time …