- Contributions of biodiversity to the sustainable intensification of food production. They are various and considerable, but context-specific. See additional data here. See also everything below…
- Development of interspecific hybrids between Solanum lycopersicum L. and S. sisymbriifolium Lam. via embryo calli. Tertiary genepool? No problem.
- The Role of Diet in Resilience and Vulnerability to Climate Change among Early Agricultural Communities in the Maya Lowlands. More diverse diets allowed Maya to survive the droughts of the Late Pre-Classic Period (AD 100–300) better than those of the Terminal Classic Period (AD 750–1000).
- Global restoration opportunities in tropical rainforest landscapes. Massive mashing up of spatial datasets concludes that top 10% areas for potential return of benefits and feasibility of forest restoration are located largely within conservation hotspots and in countries committed to the Bonn Challenge, but cover only a small portion of the Key Biodiversity Area network.
- Plant domestication disrupts biodiversity effects across major crop types. Wild relatives are better at living in diverse mixtures than their descendant crops.
- Synchronous crop failures and climate-forced production variability. ENSO has caused global crop failures. Which are likely to get more frequent.
- Frankincense in peril. Because of cows and fire.
- Identification of Loci Controlling Adaptation in Chinese Soybean Landraces via a Combination of Conventional and Bioclimatic GWAS. Three geographic sub-populations among 2000 diverse landraces; 12 SNPs associated with variation in 3 bioclimatic variables at collecting sites.
- Estimates of genetic load in small populations suggest extensive purging of deleterious alleles. Counterintuitively, rapid declines cause worse genetic load for more diverse species.
- Grazing animals drove domestication of grain crops. Small-seeded herbaceous annuals were mainly animal-dispersed, which meant they grew in dense stands on nitrogen hotspots near water sources, making them easily harvested. Hey presto, crops!
- Global impacts of future cropland expansion and intensification on agricultural markets and biodiversity. Expansion mostly threatens biodiversity in Central and South America, intensification in Sub-Saharan Africa, India and China. Prices lower everywhere.
- Domestication and varietal diversification of Old World cultivated cottons (Gossypium sp.) in the Antiquity. G. arboreum first domesticated in Baluchistan 8000 years BP, G. herbaceum much later in Nubia. But they’re really difficult to tell apart in archaeological remains.
- ‘Preserve or perish’: food preservation practices in the early modern kitchen. The housewife as natural philosopher.
Nibbles: Half-Earth, Salmon runs, Melon book, Indian genebanks
- The Half-Earth Map is better than none.
- Repurposing rice fields in the off season to help out California’s Chinook salmon.
- Photogenic melons.
- A famous community seed bank is in trouble.
- While elsewhere in India, a new genebank takes off.
An indicator for the conservation of socioeconomically and culturally valuable plants
The CIAT/CropTrust proposal for the calculation of “Comprehensiveness of conservation of socioeconomically as well as culturally valuable species” is up on the Biodiversity Indicators Partnership website.
Here’s a recent blog post on the indicator, which is relevant for Aichi Target 13 and SDG 2, Target 2.5.
And here’s the underlying paper which described the method in detail: Comprehensiveness of conservation of useful wild plants: An operational indicator for biodiversity and sustainable development targets.
Finally, here’s the website where you can explore the data.
Reforestation: Where, why, and how much?
There’s been a spate of papers on reforestation just lately and I was despairing of being able to keep track of them, let alone read them. But along comes Jonah Busch, Chief Economist at Earth Innovation, to make sense of all the maps in a couple of tweets:
Here are maps of reforestation's potential, feasibility and benefits, and costs pic.twitter.com/fK3jyFPjSr
— Jonah Busch (@jonahbusch) July 5, 2019
Here are the papers:
- Potential: The global tree restoration potential.
- Opportunities: Global restoration opportunities in tropical rainforest landscapes.
- Costs: Potential for low-cost carbon dioxide removal through tropical reforestation.
Thanks, Jonah!
LATER: There’s a nice round-up of two of the studies in Mother Nature Network. Bottom line is in the title: Massive reforestation might be the moonshot we need to slow down climate change. That doesn’t mean forests are a silver bullet, though.
LATER STILL: And, of course, who is also important.
AND FINALLY: Some objections have arisen…
Go North, rice!
You might think that Queen’s Line off Drake Road, Chatham, ON N7M 5T1, Canada is the furthest north that rice grows in the world. That’s near Lake Erie, after all.
But you’d be wrong, and so was I. The latitude is 42°19’59.7″N. And there’s rice cultivation in China and central Asia, maybe even Italy’s Po valley, north of the 45th parallel, according to this map. ((Which we’ve blogged about before, natch.))
We know the furthest south that rice is grown.