Extended Data Fig. 8: Conceptual framework of the treeline model.
From: Accelerated succession in Himalayan alpine treelines under climatic warming

Birch and fir trees are located on a hypothetical mountain slope ranging from closed forest to the alpine treeline ecotone. Individual trees competed with neighbors representing interspecific competition. The slope was subjected to a smooth gradient of temperature, decreasing with increasing elevation. The thermal lapse rate was -0.0065 °C m-1.