…25% by 2020, at $2,800 per species. Not sure I understand the bit at the end about “molecular and genetic markers for the viability of seeds,” but there’s more on the website. And thanks for the plug for Svalbard.
Nibbles: Biodiversity loss, Mapping, Mongolia, Ag origins, Polynesian voyaging, Hybrid fruits, Apricots, Bedouins, Donkeys, Chile, Cuba
- How should journalists report biodiversity loss?
- Ireland maps its threatened species, including a crop wild relative or two.
- Eat like a nomad.
- Why agriculture was such a bad idea.
- “The heightened voyaging from A.D. 1000 to 1450 in eastern Polynesia was likely prompted by ciguatera fish poisoning.”
- Is Floyd Zaiger the most prolific fruit breeder in the world? Read about his “designer fruits.”
- “It is truly the apricots that have kept me interested and focused at this job for the past 22 years.”
- Jordan’s Bedouins struggling to cope.
- Donkeys running for their lives in Ghana.
- Chile’s winemakers move south.
- The continuing success story that is Cuban urban agriculture.
The Welsh pony story gets a happy ending, maybe
I mentioned earlier that DAD-Net is holding an e-consultation on threats to livestock diversity. There was a bit of discussion on the nature of the threats last week. One of the more interesting contributions came from Dafydd Pilling of the animal genetic resources group at FAO. He offered “an example in which the threat does not correspond exactly to any of the categories listed in the background document.”
The threat in question is the financial burden imposed on the owners of mountain ponies by the EU “horse passport†scheme. The story can be traced by visiting each of the following web pages in turn:
Passport threat to wild ponies
Time running out for wild ponies
Ponies saved from passport threat
The problem goes back to 2004, and we noted it two years ago, but not the dénouement.
Three years ago the European Union passed a law that all such animals had to have a passport and be tagged. This costs £50 per animal, and at that time the ponies were only worth around £15 each so it just wasn’t going to be financially viable for us to keep protecting them.
Then seven local farmers got together, managed to secure Objective One funding and set up the Carneddau Ponies Association to fund and carry out this work.
…
We also want them classed as a rare breed, which would allow us to sell a group on one passport instead of individually.
Looks like livestock diversity is no less at risk from some EU regulation than the crop kind. Although Dr Pilling does add that “EU rules on ear tagging of cattle had been amended” when they were found to pose “a threat to extensive livestock management practices” in Europe. I’ll try to find out more about that one.
Russian agriculture as it was in living colour
English Russia is an “entertaiment blog devoted to the events happening in Russian speaking countries.” Quite often fun but not, you would have thought, likely to feature much of agrobiodiversity interest. And you’d be right. For 99% of the time at any rate. Because there was a post a few days ago with truly amazing colour photographs of the Russian Empire from a hundred years ago, and many show farming products and activities. They’re by Sergei Mikhailovich Prokudin-Gorskii, according to one of the comments, and he had a Library of Congress exhibition devoted to him in 2003, whose website is where it seems most of the images in the English Russia post originated. Well worth exploring. I wonder if some of these images could be used to compare with the present. For example, are these melons still to be found in Samarkand?
Modern rice varieties (can sometimes) increase genetic diversity
People say that introducing high-yielding crop varieties threatens agricultural biodiversity. Farmers adopt the modern varieties and abandon their traditional varieties, so that the overall genetic diversity falls as a result. They’re right, but not every time. A new paper published online in Field Crops Research ((Steele, K., Gyawali, S., Joshi, K., Shrestha, P., Sthapit, B., & Witcombe, J. (2009). Has the introduction of modern rice varieties changed rice genetic diversity in a high-altitude region of Nepal? Field Crops Research DOI: 10.1016/j.fcr.2009.04.002)) shows that genetic erosion need not be the unintended consequence of high-yielding varieties, especially if the modern varieties count farmer varieties among their parents.
In the early 1990s, while a PhD student at Bangor University in the UK, our friend Bhuwon Sthapit, now a senior scientist at Bioversity International, was instrumental in breeding three new varieties of rice suitable for upland rice farms in Nepal. This was no ordinary breeding programme, however. Sthapit worked closely with farmers, who both set the goals of the breeding programme and participated in the selection of the final varieties from the many crosses. The varieties were selected from crosses of Chhomrong Dhan, a local landrace well adapted to the cold conditions of high-altitude rice farms in Nepal, with Fuji 102 and IR36, more productive material from international breeding programmes.
Farmers selected three lines: Machhapuchhre-3 (M3), Machhapuchhre-9 (M9, which is similar to M3 but with lower cold tolerance) and Lumle-2 (L2, like M3 with better grain quality and easier threshing). Only M3 was officially released, but M9 and L2 have been adopted widely thanks to informal seed exchanges among farmers. By 2004 about 60% of the land in the study villages was sown to one of the three COB (client-oriented breeding) varieties, while traditional varieties occupied the remaining 40%. In adopting the COB varieties, many farmers had dropped traditional landraces, but there was no clear pattern to which landraces were dropped in which villages. The variety dropped most commonly was Chhomrong Dhan, one parent of all three COB varieties.
To assess genetic diversity, Sthapit and an international team of the researchers from Bangor and Nepal analyzed DNA from the three COB varieties, a random selection of landraces and a control group of modern varieties. Overall, genetic diversity was greatest in the landraces, and least in the COB varieties. However, there was no loss of genetic diversity across the district as a whole, at least as long as the three COB varieties were adopted on less than about 65% of the land. Indeed, because the high-yielding parental varieties contribute alleles not previously known in the area, there is an increase in diversity as the COB varieties are adopted .
Another crucial result is that although some farmers grow COB varieties on 100% of their land, nevertheless, at least 11 diverse landraces survived on some 40% of the land. These landraces clearly meet needs not fulfilled by the COB varieties. For example, although the most commonly dropped variety was Chhomrong Dhan, farmers in the Gurung community continued to grow that variety.
“It is the preferred rice for preparation of the dish Madeko Bhat used during funerals and other ritual and social ceremonies,” Sthapit told us.
“The conclusion is clear,” Sthapit added. “Participatory breeding and client-oriented breeding programmes should choose locally adapted varieties as parents for breeding. It ensures that landrace genes are conserved and increases the likelihood that the breeding programme will succeed.”