Jacob van Etten Profile picture
Agricultural researcher, digital inclusion, citizen science, sustainable food systems, #rstats, @BiovIntCIAT_eng
Feb 26, 2019 10 tweets 5 min read
Today the last thread of the Twitter marathon on the occasion of our @PNASNews article "Crop variety management for climate adaptation supported by #citizenscience". What about the farmer perspective? What motivates farmers to do this? doi.org/10.1073/pnas.1… The idea of the #citizenscience methodology behind our paper is that farmers can actively participate in experimentation. Tricot or triadic comparisons of technologies makes participation feasible for several reasons.
Feb 21, 2019 18 tweets 5 min read
Continuing the chat on our article in @PNASNews "Crop variety management for climate adaptation supported by citizen science" doi.org/10.1073/pnas.1… Today, I tweet about #agrobiodiversity and #climateadaptation and the limitations of agricultural science 1/16 #Agrobiodiversity is often mentioned as an important way to adapt to changing climates. But there are important challenges to realise this promise. The most important one is that this whole idea relies on massive information that climate change is actually destroying. 2/16
Feb 20, 2019 13 tweets 6 min read
Yesterday I promised to write some tweets about our recent article in @PNASNews. A nerdy thread on technical details first! We used a cool model to analyze farmers' crop variety evaluation and test if seasonal climate could explain differences. doi.org/10.1073/pnas.1… The model is called "Plackett-Luce trees". This model produced the nice graph above. The model splits the dataset in different segments of farmers that each have very different observations on the crop varieties. The example shows bean varieties in Nicaragua.