Three articles on the benefits of diversity for your delectation this weekend. Evolutionary Applications has a paper suggesting that restoration of degraded landscapes is best done with “high quality and genetically diverse seed to maximize the adaptive potential of restoration efforts to current and future environmental change.” Meanwhile, in The Economist, how structurally complex and diverse betel nut plantations ((Ok, ok, “betel nut.”)) can be almost as good for bird diversity as the surrounding forest, and how it is better for a crop to be attacked by two pests rather than one.