What do you know about biodiversity?

That it has absolutely nothing to do with agriculture! That’s the only conclusion to be drawn from a report on the CABI blog about a study in the journal Biological Conservation. It reports a survey of “the general public” in the Cairngorm Mountains in Scotland, which tried to discover what they knew about biodiversity. (I’ve pinched my headline direct from them.) You might think the Cairngorms are not a very agricultural place, but you would be wrong. There’s a great deal of farming up there, to say nothing of timber industries. And some of the conservation efforts seek to duplicate farming practices that have fallen by the wayside. But to hear CABI tell it, even though the survey included foresters and “farmer students” there seemed to be almost no understanding of how agricultural practices are part and parcel of landscapes and their ecology. Bah!

One up, one down

Following on from Luigi’s post a month or so back about the probable return of the chestnut to American woods, two stories, on consecutive days, from the Christian Science Monitor. One gives more information about the complex breeding programme that involves Chinese chestnuts, resistant American trees and lots of painstaking crosses to produce blight-resistant chestnuts. That work has been going on since the early 1980s, and may now be close to complete. A few days earlier, the paper reported on the threat to the Eastern Hemlock, a woolly bug, originally from East Asia. Adelges tsugae has been slowly spreading across the US, where the only hope seems to be a decent cold winter. The fear is that the Eastern Hemlock will go the same way as the Carolina Hemlock, which once shared the forests with the American chestnut and which, experts fear, could now be eaten out of existence.

Battling risk

Here’s how Jeffrey Sachs starts a recent article in Scientific American:

Life at the bottom of the world’s income distribution is massively risky. Households lack basic buffers — saving accounts, health insurance, water tanks, diversified income sources and so on — against droughts, pests and other hazards. The bodies of the poor often lack enough nutrients to rebuff diseases. Even modest shocks, such as a temporary dry spell or a routine infection, can be devastating. 

He uses this platform to launch a plea for innovative forms of insurance, things like weather-linked bonds combined with other financial services for farmers. The Millennium Village of Sauri in Kenya has apparently been having some encouraging experiences with such instruments, and they certainly seem worth exploring and testing. Anything that helps farmers manage risk must be welcome.

But what about the best agricultural insurance policy of all? What about agricultural biodiversity, in all its guises? Not much — or any, in fact — talk about agrobiodiversity from Prof. Sachs, beyond that “and so on.”