- Dept. of Silver Linings: “U.S. farmers and foresters could earn more money from carbon contracts than they pay in higher costs from legislation to control greenhouse gases.”
- Dept. of Black Clouds: “Climate change and the risk of violent conflict in the Middle East.”
- Rapid-growing rice reduces famine in Bangladesh.
- Yields of maize grown in rotation are higher and more stable than those grown exclusively.
- Latest Plant Genetic Resources newsletter online. Most accessible here.
- Banana scientist bags award for field genebank.
Fire and crop wild relatives
As wildfires rage across much of southern Europe, causing death and destruction, it’s sometimes difficult to remember — and perhaps insensitive to mention — that this is in fact a common occurrence, even necessary for the maintenance of vegetation and biodiversity in the Mediterranean.
In the Mediterranean, as in the mediterraneoids, fire occurs where vegetation is flammable. Combustibility is not a misfortune but an adaptation: plants that burn do so because they are fire-adapted. They make fire-promoting resins and other chemicals, or they have structural adaptations, such as producing a loose, airy litter of dead leaves and twigs which dries out and burns. Their ecology involves catching fire from time to time and burning up competitors.
Still, one wonders whether this might be too much of a “good” thing, and whether we’re heading for even more with climate change. What will this mean for particular species, for example crop wild relatives? Do we know how many are fire-adapted? And do we know even for those that are so adapted whether beyond a certain frequency or intensity fire becomes a threat rather than a necessity?
Climate change and fruit
A long report in the LA Times reminds readers that climate change is not all about droughts and floods. It’s also about winter chill. Many fruit trees absolutely must have a certain number of cold days in the winter to prepare them for spring blossom and summer fruit. Those chill days are declining fast in California’s Central Valley.
“Climate change is not just about sea-level rise and polar bears,” said UC Davis researcher Eike Luedeling, lead author of the study. “It is about our food security. Climate change may make conditions less favorable to grow the crops we need to feed ourselves.”
Can’t argue with that. But are California’s fruit farmers likely to experiment, as the farmers of Kazakhstan have done, with planting different varieties, maybe even seedlings, to see whether any of these are better able to produce under different conditions? Somehow, I doubt it.
HT: The Ethicurean.
Ex situ redux
After a period in which ex situ conservation has been downplayed by the conservation community (except for agrobiodiversity where it is still the main conservation strategy) ex situ conservation is now widely accepted as an increasingly necessary complement to in situ forms of conservation (IUCN 2002; BGCI 2000), especially protected areas (e.g. Abanades García & al. 2007).
That’s from a new report for the Council of Europe entitled “The impacts of climate change on plant species in Europe,” prepared by Prof. Vernon Heywood of the School of Biological Sciences, University of Reading, with contributions by Dr Alastair Culham. You’ll find it on p. 39 after a very thorough review of the issues. Nice to see such a bold statement. The report is one of several prepared for the Group of Experts on Biodiversity and Climate Change of the Convention on the Conservation of European Wildlife and Natural Habitats. Thanks to Danny for the tip.
Nibbles: Camel sweets, UG99, British woods, Rice, India and climate change, Soay sheep, Fish, Seed fair, Barn owls, Food maps, Earthworms
- Chocolate made from camel milk for the first time. And last?
- “Slow rusting” genes from Ethiopian wheat landraces.
- Brits (and Yanks, for that matter) look for ancient trees in woodlands becoming ever less distinctive.
- The world needs GM rice, but alas “the environment for accepting genetically modified crops is not as good as it should be.” Meanwhile, IRRI keeps hammering away at drought tolerance and resistance to other assorted stresses. It’s hard being rice.
- ICAR looks at the likely effects of climate change on crops and what can be done about it.
- Climate change making Soay sheep (and, incidentally, European fish too) not just smaller, also darker. Speaking of fish, there’s trouble in the Zambezi too, but not necessarily due to climate change. Although…
- A Greek seed bazaar.
- FAO turns to barn owls to stop Laotian rodent plague.
- US food policy destinations on Google Maps.
- Vermicomposting is good news for the Indian textile industry. Vermicomposting: I like saying that word.