Maintaining diversity: an experiment

When we talk about biodiversity — including agrobiodiversity — we really mean three things at the same time: diversity among ecosystems, among species, and within species. Scientists usually study these scales separately, but can diversity at one level somehow affect diversity at another? That’s the question tackled by an experiment described last week in Science ((MRichard A. Lankau and Sharon Y. Strauss (14 September 2007) Science 317 (5844), 1561. DOI: 10.1126/science.1147455.)) and discussed by one of the authors in Scitizen (fortunately, because the full paper is behind a paywall). ((Thanks to Andy for the headsup.))

Continue reading “Maintaining diversity: an experiment”

Jack Hawkes: Obituary

It has been a bit of a wait, but worth it. London’s Daily telegraph carries a fine obituary of Jack Hawkes, who died a couple of weeks ago.

Hawkes recalled that Vavilov treated him “as an equal even though I was without a paper to my name. He inspired me with his extensive knowledge, friendship and boundless enthusiasm.” Tragically, Vavilov was to be executed on trumped-up charges in 1943 after falling foul of Trofim Lysenko, his successor as president of the Lenin Academy, a man whom Hawkes found to be “a dangerous, bigoted and wholly repellent person — a politician rather than a scientist, very able to ingratiate himself with Communist Moscow”.

And there you have, in a nutshell, much of the early history of plant genetic resources.

Hawkes met Vavilov just before setting out on the British Empire Potato Collecting Expedition to South America, covering 9000 miles and collecting more than 1100 acessions. The Indiana Jones meta-narrative lives on, of course, precisely because of men like Vavilov and Hawkes who made it their business to go out there and find the treasure. To their eternal credit, they shared the loot with all who asked.