Would you move a species threatened by climate change to an area where it isn’t currently found but where the new climate suits it better? That’s “assisted migration,” and the lively debate around it is described by Carl Zimmer in the New York Times here. He quotes a thorough review of the ecological and evolutionary responses to climate change which may be found online as a pdf here. It seems to me that assisted migration is likely to be feasible for only a small number of wild species, but what about crops? Making threatened crops and landraces available to farmers in more suitable climates sounds like a pretty good idea to me.
Crops in the news
I’m not sure what to make of newspaper articles describing how to grow and process staple crops. On the one hand, it is nice to see the mainstream media take on agricultural subjects. On the other, it is sometimes difficult to see who exactly is meant to benefit from articles such as this on cassava from the St Kitts & Nevis and this on sweet potato from Zambia. Any thoughts?
Sachs in Kenya
Professor Jeffrey Sachs, director of the UN Millennium Project, is in Nairobi, and The Nation reported yesterday that he “said … giving farmers high yield seeds, fertiliser and mosquito nets to prevent malaria infection would accelerate the country’s economic growth.” He quoted the experience of the Millennium Villages: at Sauri in Siaya District, for example, cases of malaria have dropped by half since the distribution of free mosquito nets and last year the harvest was four times bigger than two years ago. I have no issue with the malaria interventions, but does anyone really still think that “high yield seeds” and fertilizer are the sole answer to agricultural development in Africa? Couldn’t Prof. Sachs have said something about the importance of diversity too?
Mapping agriculture in Bhutan
Great to hear about a national atlas of natural resources, including agriculture, for Bhutan. Such publications are not as common as one might think, alas, but I can’t think of anything more useful in planning agricultural biodiversity conservation activities in a country.
Bats to the rescue
The other Economist article I wanted to mention deals with bats and how useful they are to agriculture, as pollinators (e.g. Agave) and – the main point of the piece – as predators of agricultural pests. Work in Texas is actually trying to quantify the benefit that bats bring to famers of cotton and other crops as they munch their way through moth populations in their millions. Always good to be able to put $ values on biodiversity.