In this review I first compile data for the worldwide position of climate-driven alpine treelines.
Causes for treeline formation are then discussed with a global perspective. Available …

Background: Tropical high mountains present extreme daily temperature variations, frequent
high air evaporative demands and seasonal differences in soil water availability. Plants …

Christian Körner has been at the forefront of research investigating treelines, and in the late
1990s and early 2000s he proposed a unifying theory to explain the global occurrence of …

Generations of plant scientists have been fascinated by alpine plant life-with the exposure of
organisms to dramatic climatic gradients over a very short distance. This comprehensive text …

1. Growth, reproductive success and non-structural carbon pools in Polylepis tarapacana
Philippi trees were examined across a transect between 4360 and 4810 m altitude on …

To test whether the altitudinal distribution of trees is determined by a carbon shortage or an
insufficient sugar fraction (sugar: starch ratio) in treeline trees, we studied the status of …

1. Whether the global high elevation tree line phenomenon is associated with a low-
temperature-induced limitation of sink activities (ie direct impact on meristems and thus …

No single hypothesis or theory has been widely accepted for explaining the functional
mechanism of global alpine/arctic treeline formation. The present study tested whether the …

Historically, carbon limitation, through a shortage of photoassimilates has been argued to
limit the growth of trees at the upper altitudinal treeline. In a three‐year free‐air CO2 …

High altitude tropical regions have been heavily deforested and offer large areas for carbon
offsets by secondary forest regeneration. However, a general assumption exists that …