The Earth's climate system has recently experienced substantial warming, and associated effects are often most pronounced at species-specific distribution limits. Treeline ecotones may therefore be particularly useful to assess the complex interplay of biotic and abiotic factors in relation to environmental change.
Here, we present site-dependent growth trends and climate responses of 22 Norway spruce Picea abies (L.) H. Karst. tree-ring chronologies from the treeline ecotone in the Sudetes Mountains (Mts.) along the Czech-Polish border.