Declining calcium concentration drives shifts toward smaller and less nutritious zooplankton in northern lakes. - Bergström AK; Creed IF; Paltsev A; de Wit HA; Lau DCP; Drakare S; Vrede T; Isles PDF; Jonsson A; Geibrink E; Kortelainen P; Vuorenmaa J; et al. (Global change biology, 2024)