- Genetic diversity loss in the Anthropocene. Don’t get excited, I don’t think the method translates to cultivated species, but fancy maths says we’ve lost on average 10% of the genetic diversity within species.
- A graphical causal model for resolving species identity effects and biodiversity–ecosystem function correlations. Yeah, but don’t forget that species level diversity is important too. Or rather, diversity of functional traits among species.
- Cereal species mixtures: an ancient practice with potential for climate resilience. A review. Species level diversity in the same farmer’s field is being forgotten, and that’s bad.
- Microbiomes in agroecosystem: Diversity, function and assembly mechanisms. Even soil microbial diversity is important…
- Association analyses of host genetics, root-colonizing microbes, and plant phenotypes under different nitrogen conditions in maize. …but the effects of soil microbial diversity can get quite complicated, and interact with the genetic diversity of crop plants. Which we may or may not have lost an average 10% of.
- Direct and indirect effects of management and landscape on biological pest control and crop pest infestation in apple orchards. Yeah, but species diversity can be bad too.
Pulse evaluation set to INCREASE
As we’ve noted a couple of times here, the INCREASE project (Intelligent Collections of Food Legumes Genetic Resources for European Agrofood Systems) includes a fantastic citizen science component. If you’re interested in taking part, registration for the third phase opens in a few days.
Fact-checking The Economist on breadfruit
Last week’s The Economist has a nice piece in its Graphic Detail section on how climate change is affecting yields of some crops so much that farmers in many parts of the world will be increasingly tempted — if not compelled — to switch to different crops.
Even if more climate-resilient varieties of the crops farmers are currently growing come on-line, along with better agronomic practices, it may in some cases just be easier and more profitable to grow something else, says the article.
Like breadfruit, it adds, cheekily. Before concluding, rather more constructively, that, given the uncertainties involved, farmers should “learn about a wide variety of crops.”
I’d have liked to share a chart or two here, but the licensing paywall is steep, so I’ll just point to the four studies that the article references. Unlike The Economist, though, I’ll actually give the full titles, and link to the papers — Brainfood-style.
- Climate analogues suggest limited potential for intensification of production on current croplands under climate change. Major cereals are going to take a significant hit over much of their area of cultivation by 2050.
- Climate impacts on global agriculture emerge earlier in new generation of climate and crop models. Newer crop and climate models are generally more pessimistic that older ones.
- Increased food production and reduced water use through optimized crop distribution. Shifting crops around in a clever way would feed an extra 850 million people while saving water.
- Matches and mismatches between the global distribution of major food crops and climate suitability. The match between where 12 crops actually grow and where they grow best is not optimal, but stronger in richer parts of the world.
LATER: Actually, let me add another one to the list, not in the piece in The Economist but also relevant, and complemented by a useful Q&A with one of the authors.
- Relocating croplands could drastically reduce the environmental impacts of global food production. Moving crops to where they do best decreases their carbon, biodiversity, and irrigation water footprint.
Animal cryoconservation hots up
It has somehow passed me by that FAO and NordGen have been running a series of webinars on “Innovations in cryoconservation of animal genetic resources,” in support of some new FAO guidelines. The next webinar on 1 December is the seventh in the series and will cover “Legal Issues: Acquisition, Storage and Transfer of Gene Bank Material.” Recordings of previous ones, and associated presentations, are on the FAO website.
Big Ag tells world how to fix ag, world tells Big Ag “heal thyself”
Readers may remember a recent Nibble on a report by some Big Ag head honchos saying that we’re destroying the planet and we should, you know, stop. That was met mainly by shouts of “who’s this we?” and variations thereof.
Well, so now there’s a another report by what seems to be a different set of Big Ag head honchos, but the response is predictably similar.
All grist to the COP27 mill, I guess, where for once agriculture is front and center.
You see what I did there?