Thanks to the NY Times’ photography blog Lens, two great multimedia presentations for you, both on a watery theme, but with some agrobiodiversity thrown in. From Panos, a moving video of the story of how Tuvaluans are trying — and, alas, mainly failing — to cope with climate change. It’s getting harder and harder to maintain the way of life, including the taro and pulaka gardens, in the face of rising water levels. But the alternative, life in New Zealand, is not appealing to everyone. And from the other side of the world, illustrating the opposite problem, a photoessay on Iraq’s Marsh Arabs, who live by fishing, growing a few crops, and raising buffaloes. But “farmers say lowered water levels and pollution has made it difficult to keep the buffalo healthy.”
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?
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 GarcĂa & 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.
Nibbles: Cheese, Dog genetics, Olives on Crete, Polyploidy, Pollination
- Making French cheese in the Himalayas.
- The latest on how to build your perfect dog.
- “The scientists are putting the all the trees which must be saved into a data bank.” Clever scientists.
- Polyploidization so, so much more than merely the sum of genomes.
- “The expected direct reduction in total agricultural production in the absence of animal pollination ranged from 3 to 8%…” Thank goodness for Operation Pollinator, eh?