- International Seed Federation secretary-general in podcast on seeds and the SDGs.
- Country nutrition profiles. Sobering.
- Share your plant stories on Herbaria 3.0.
- The secret history of the cowpea, from a chef: “Our peas were tiny little texts, and we didn’t even know it.”
- Speaking of chefs…
- More on that 4000-year-old baking yeast story.
- The economics of rotations.
- The economics of blue maize.
- Mapping the evidence base for the link between forests and poverty alleviation.
- Speaking of maps, here’s how food moves around the USA.
Rethinking reforestation
One of the reforestation papers we blogged about a few months back is coming in for some criticism.
In the original study, ecologist Thomas Crowther of the Swiss Institute of Technology in Zurich and his colleagues first used a machine learning algorithm to predict where additional trees could naturally grow, based on climatic conditions under which existing forests are known to exist. Then, his team used a handful of published estimates on the carbon stored in existing forests to estimate how much carbon those additional trees could lock in once they reach maturity. After taking into account the carbon that would be trapped in the soil, leaf litter, and dead wood associated with the trees, they arrived at their 205 gigaton estimate.
That’s a trillion trees on almost a billion hectares. Just google those figures to get an idea of the impact the paper had.
Anyway, now researchers are finding holes in the methodology. My reliably pernickety friend Eike Luedeling is objecting to the figure used to convert canopy cover to amount of carbon sequestered, and to how the availability of land for reforestation was estimated. Others are suggesting that the effect of new forests on the surface albedo should have been factored in. But perhaps the main objection is higher-level.
Several groups of scientists took particular issue with the paper’s original statement that global tree restoration is “our most effective climate change solution to date,” an assertion one of the critics called “dangerously misleading” as it implies trees are the unique solution to climate change. Land, and how we use it, can be a big part of the solution to climate change, as outlined highlighted in a recent report by the Intergovernmental Panel on Climate Change. But those strategies only “buy us time” while people cut greenhouse gas emissions, which is arguably the most powerful climate change mitigation strategy, says Luedeling.
Needless to say, the authors are countering vigorously. You can read all the toing and froing in The Scientist.
Brainfood: Traditional grazing, Land use & health, Local foods, Forage fish, OFSP, Olives & nematodes, Ohia seed, Mauka, Wolf erosion, American CWR, Open seeds, Global diseases, Neolithic LP, Rice in the US, Useful plants
- Traditional grazing systems in the Venetian Alps: Effects of grazing methods and environmental factors on cattle behaviour. Better for the cows, better for the cheese, better for the environment.
- Biodiversity, land use change, and human health in northeastern Madagascar: an interdisciplinary study. Paddy rice cultivation is bad for you.
- Local traditional foods contribute to diversity and species richness of rural women’s diet in Ecuador. Local food species are good for you.
- Illustrating the hidden economic, social and ecological values of global forage fish resources. $18.7 billion per annum, over 3 times of their direct catch value. But what exactly are they?
- Determination of carotenoids in sweet potato (Ipomoea batatas L., Lam) tubers: Implications for accurate provitamin A determination in staple sturdy tuber crops. Not all carotenoids have provitamin A properties.
- Evaluation of the Phytopathological Reaction of Wild and Cultivated Olives as a Means of Finding Promising New Sources of Genetic Diversity for Resistance to Root-Knot Nematodes. Some wild relatives could help.
- Picking from the Past in Preparation for a Pest: Seed Banks Outperform Herbaria as Sources of Preserved ‘Ōhi‘a Seed. I would hope so.
- Unearthing the “Lost” Andean Root Crop “Mauka” (Mirabilis expansa [Ruíz & Pav.] Standl.). On the rebound?
- High levels of recent wolf × dog introgressive hybridization in agricultural landscapes of central Italy. Not much real wolf left.
- A Road Map for Conservation, Use, and Public Engagement around North America’s Crop Wild Relatives and Wild Utilized Plants. Understand, protect, collect, conserve, make available, inform. Allrighty then.
- Open source seed, a revolution in breeding or yet another attack on the breeder’s exemption? May backfire.
- A global surveillance system for crop diseases. A Global Surveillance System, in fact. Here’s the origin story.
- New insights into Neolithic milk consumption through proteomic analysis of dental calculus. People unlikely to have lactase persistence consumed milk, which means either they were in constant discomfort or processed it in some way.
- Race and Region: Tracing the Cultural Pathways of Rice Consumption in the United States, 1680-1960. WW2 made it a cosmopolitan commodity.
- The climatic challenge: Which plants will people use in the next century? Depends on the tradeoffs between diversification-specialization and between substitution-adaptation.
Nibbles: Colombian seeds, Seed diversity, Local crops & nutrition, Seed saving, Apple origins, Microbial collections, Dairy cows in USA, Bean sculptures, IPCC report, Potato linguistics, Piña cloth
- Climate-smartness and seeds in Colombia.
- Why do we need 158 varieties of cauliflower?
- Maybe it’s the nutrition? Gotta get those value chains working though: here’s how.
- Also, it will save the world.
- Biting hard into apple origins.
- Microbes need collections too.
- And cows.
- Inflatable beans. The jokes write themselves.
- Did I already link to my work blog post on the IPCC report?
- Papas or patatas? It’s…complicated.
- I want me a pineapple shirt.
Brainfood: Creole cattle, Wattle diversity, Olive death, Cucurbit diversity, Child nutrition, Seed systems, N efficiency, Black Sigatoka, Ag oils, Sharing double, Cow sharing, Horse phenotyping, Nutrients & CC
- The genetic ancestry of American Creole cattle inferred from uniparental and autosomal genetic markers. Out of Africa…
- Tracing the genetic origin of two Acacia mearnsii seed orchards in South Africa. For one of the orchards, the origin is unknown, but it’s distinct to all the other, known provenances.
- Genetic Characterization of Apulian Olive Germplasm as Potential Source in New Breeding Programs. Ok, but unclear what all this means for Xylella resistance, which presumably was the main reason for doing the work?
- Whole-genome resequencing of Cucurbita pepo morphotypes to discover genomic variants associated with morphology and horticulturally valuable traits. The two subspecies were domesticated and evolved independently.
- Mapping the effects of drought on child stunting. Lower precipitation is bad for kids.
- Governing Seeds in East Africa in the Face of Climate Change: Assessing Political and Social Outcomes. Wealthier, more food secure households are more likely to grow maize hybrids. Cause? Effect? But in any case the commercialization agenda has left sorghum behind.
- Exploiting genetic variation in nitrogen use efficiency for cereal crop improvement. Back to the genebank. Just one of a whole issue on genetic variation in physiological traits.
- Black Sigatoka in bananas: Ecoclimatic suitability and disease pressure assessments. The high yield areas are most at threat.
- Fats of the Land: New Histories of Agricultural Oils. Hidden histories are the best histories.
- Food Provisioning Services Via Homegardens and Communal Sharing in Satoyama Socio-ecological Production Landscapes on Japan’s Noto Peninsula. Sharing promotes diversity. Kinda beautiful.
- Cow Sharing and Alpine Ecosystems: A Comparative Case Study of Sharing Practices and Property Rights. The jury is out on whether it contributes to conservation, but it still seems pretty cool.
- Horse phenotyping based on video image analysis of jumping performance for conservation breeding. Judges don’t know what they’re talking about.
- Preserving the nutritional quality of crop plants under a changing climate: importance and strategies. Mainly due to eCO2. Need to breed for it under the new conditions. Or try other crops.