Category: Wild relatives

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African protected areas surveyed

The EU-funded “Assessment of African Protected Areas” is out:

The purpose of the work is to provide to decision makers a regularly updated tool to assess the state of Africa PAs and to prioritize them according to biodiversity values and threats so as to support decision making and fund allocation processes.

It is great stuff: detailed, standardized descriptions of the importance of — and threats faced by — each protected area in Africa. I wonder if something similar will ever be done for agricultural biodiversity. An interesting first step might be to mash these results with those of the recent survey of crop wild relatives in protected areas. Unfortunately, the agrobiodiversity and protected areas communities hardly ever speak to each other.

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Imagining the past

And another trifecta to round off the day, this one of stories about the historical remains of agrobiodiversity, in a broad sense.

We start with an article in Britain’s Daily Telegraph about a genetic study of the skulls of a couple of lions from the menagerie which medieval royalty maintained in the Tower of London. It turns out they were Barbary lions from North Africa, now sadly extinct. Ok, they’re not strictly speaking agricultural biodiversity, but it’s a fun story and I couldn’t resist it.

Next there’s news of an excavation in Egypt which revealed the buried remain of donkeys. I think we actually nibbled this a few days ago in another guise, but the NY Times article is worth reading. The find is interesting because although the donkeys were definitely used as pack animals (the evidence is wear and tear on the bones), they didn’t look any different from wild asses — at least as far as their bones are concerned. Certainly they were no smaller, and a rapid reduction in size has been seen as a marker of animal domestication — the domestication syndrome. So, time for a rethink there.

And, finally, the Boston Globe has a piece on an exhibition of Jewish mosaics from Roman North Africa, entitled “Tree of Paradise” because of its depictions of nature’s bounty. Ancient representations of plants and animals are fascinating, because they are really the only way we can know the external phenotype of old, extinct breeds and varieties. There are unfortunately no pictures in the article, and the exhibition website only has one. Pity.

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Wild pomegranates threatened?

Having visited when it was still very difficult to get there, and to get around once you got there, I found myself ambivalent about news of road development on Socotra. The people there could certainly do with a couple of decent roads: there were none at all when I was there in the late 1980s, and I remember a couple of really heavy walks, carrying herbarium presses to boot. The place is beautiful, and should attract tourists, but they’re going to need roads too. On the other hand, it sounds like the road system and other development may not be as well planned as it might. The only wild relative of the pomegranate is endemic to the island, but I doubt any road is going to go anywhere near the few populations left. As I remember, they were (and hopefully still are) in really inaccessible places.


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A modest proposal

That last but one post of Jeremy’s got me thinking. How do we find out if Arachis ipaensis is still at that locality? I mean, short of mounting a fully-fledged expedition of groundnut experts at vast expense, that is. One way might be to ask a local person to check for us. Ok, a wild peanut species might not be the best thing to try this with, but you get the idea. Problem is, how do we identify a local person who knows that area?

Then I remembered something Jeremy sent me recently. WikiLoc is a website to which you can upload your favourite walk or cycle ride as a GPS track. You can then view all these in a number of different ways, including in Google Earth. So I gbiffed (sensu Cherfas, 2008) the localities of wild Arachis species and viewed them in Google Earth together with all the tracks from South America available on WikiLoc.

Well, of course, none of the trails was anywhere near the locality of A. ipaensis. But I did find others that came near — or very near — the localities of other species. Check this one out, for example:

It’s a 32 km circuit around Piribebuy in Paraguay, and it was uploaded by someone called Yagua. It takes about 4 hours to walk it. And it so happens that a specimen of Arachis glabrata was collected along Yagua’s favourite trail, around its southeastern corner:

glabrata-closeup.jpg

Now, I don’t think A. glabrata is a particularly significant component of the groundnut genepool, but say, for the sake of argument, that it had been. Couldn’t we ask Yagua to keep an eye on it for us? Multiply by the more than 10,000 tracks on WikiLoc and pretty soon you’re talking about a real global network of agrobiodiversity monitors. But maybe we should test the idea out with a somewhat more — ahem — charismatic plant. And imagine if germplasm collectors start adding their tracks to WikiLoc.