- Cultivate medicinal trees to save them. Oh, and provide medicines.
- Or you could harvest them sustainably from sacred forests?
- Reef fished out? Aquaculture to the rescue. Sounds a bit like the aquatic equivalent of the above, no? But do they have sea cucumbers and their poop in those inland ponds?
- Growing diverse crops good for bees, good for crops. Buckwheat diverse enough for ya?
Brainfood: Grass evolution, Great Lakes fisheries, African cassava, Sustainable UK farms, USA biodiversity loss, PVS, Agriculture to the rescue
- Evidence for recent evolution of cold tolerance in grasses suggests current distribution is not limited by (low) temperature. Geography a better predictor of cold tolerance than phylogeny.
- May we eat biodiversity? How to solve the impasse of conservation and exploitation of biodiversity and fishery resources. We may, if we all agree.
- Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa. There isn’t any.
- Evidence of sustainable intensification among British farms. Amazingly, there is some, and aiming to increase profitability can get you there.
- Key areas for conserving United States’ biodiversity likely threatened by future land use change. To the tune of 5-8% area loss, and not counting climate change. Would be interesting to know what that will do to crop wild relatives.
- Dilemma in participatory selection of varieties. If it’s a one-time deal, as it often is, it ain’t gonna work.
- Green Revolution research saved an estimated 18 to 27 million hectares from being brought into agricultural production. And saved 2 million ha of forest. But less than Borlaug thought. More on “Agricultural innovation to save the environment” from PNAS.
Nibbles: Beer edition
- Genebank saves beer!
- Not so fast…
- So, lets get back to basics shall we, and the dawn of brewing, recreated (again).
Brainfood: Forest restoration, Vegetable diversity, Intensification costs, Community forests, Baja oases, Nigerian foods, European wetlands, Landscape diversity & resilience, European conservation prioritization
- Can Ficus Sp. Forests Be Restored Through Vegetative Propagation? Yes. But with the reduced genetic diversity and all, for how long?
- A qualitative assessment of diversity and factors leading to genetic erosion of vegetables: a case study of Varamin (Iran). Species richness only, settle down. But, pace the title, quantitative.
- Agricultural intensification escalates future conservation costs. Because of higher land rents. Just can’t win.
- Common property protected areas: Community control in forest conservation. They can work.
- Baja California peninsula oases: An agro-biodiversity of isolation and integration. Both too much and too little isolation are bad.
- Cultivated, caught, and collected: defining culturally appropriate foods in Tallé, Niger. …and integrating them into development.
- Wetlands in Europe: Perspectives for restoration of a lost paradise. Down to 20% and counting. Someone should count the crop wild relatives in them.
- Economic Resilience and Land use: The Cocoa Crisis in the Rio Cachoeira Catchment, Brazil. Diverse land use means more resilience.
- Priorities for biodiversity monitoring in Europe: A review of supranational policies and a novel scheme for integrative prioritization. Yeah, but doesn’t integrate crop wild relatives, does it?
Conserving Prunus africana?
I’ve been sitting on it for a while, but a paper which AoB Blog discussed back in January led me to uncover a whole load of stuff on Prunus africana. The African Cherry Tree does not rate a leaflet in the African Food Tree Species series, perhaps because it’s not a, well, food tree, but that doesn’t mean it’s not important.
Chemicals extracted from the tree’s bark are used in a range of pharmaceutical products to treat enlarged prostate (benign prostatic hyperplasia), an extremely common condition that affects up to half of men aged over 50.
Hence various efforts to develop sustainable harvesting methods. And also an interesting series of diversity and demographic studies:
- Phylogeography of the Afromontane Prunus africana reveals a former migration corridor between East and West African highlands: “The high genetic similarity found between western Uganda and west African populations indicates that a former Afromontane migration corridor may have existed through Equatorial Africa.”
- Structural diversity and regeneration of the endangered Prunus africana (Rosaceae) in Zimbabwe: “…poor regeneration, fewer P. africana trees in small and large size classes, dominance of positive height and diameter differentiation and high mingling.”
- Divergent pattern of nuclear genetic diversity across the range of the Afromontane Prunus africana mirrors variable climate of African highlands: “The observed patterns indicate divergent population history across the continent most likely associated to Pleistocene changes in climatic conditions. The high genetic similarity between populations of West Africa with population of East Africa west of the Eastern Rift Valley … provides further evidence for a historical migration route. Contrasting estimates of recent and historical gene flow indicate a shift of the main barrier to gene flow from the Lake Victoria basin to the Eastern Rift Valley…”
- Modelling the potential distribution of endangered Prunus africana (Hook.f.) Kalkm. in East Africa: “Prunus africana distribution is thus highly vulnerable to a warming climate and highlights the fact that both in-situ and ex-situ conservation will be a solution to global warming.”
Maybe we could do with some more seed behaviour data. But it would seem there is now plenty of diversity, demographic and sustainable harvesting information on which to base a comprehensive conservation strategy. Is someone coming up with one?