Does forest stand structure impact the dynamics of snow on winter grazing grounds of reindeer (Rangifer t. tarandus)?

► Different forest structures differ in impacts on snow characteristics (depth, hardness, maturation) for reindeer grazing. ► Multi-layered forests are more variable in snow hardness than single-layered forests. ► Weather variation interacts strongly with forest structure in influencing snow characteristics. ► Timing and severity of weather events are decisive for snow metamorphism. ► Reindeer herders need variation in the landscape to react to weather variation and consequences on snow characteristics.