Forest migration northward. Though "Fagus" and "Picea" populations did not expand directionally, they have grown in the Scandinavian range. The movement of "Picea" species in the past 1000 years has shown a strong connection to climate change through a model comparison. In the more recent past, there has been documentation of elevation shifts in distribution of many core forest tree species of Catalonia. The populations of two tree species (European Beech, "Fagus sylvatica"; and Holm Oak, "Quercus ilex") were evaluated in their dynamics over elevations through time. Generally, Holm Oak reside lower on mountain slopes than does European Beech. In the past
Fagus Factory are left open and the piers are recessed leaving the glass surface to the front. Gropius describes this transformation by saying, "The role of the walls becomes restricted to that of mere screens stretched between the upright columns of the framework to keep out rain, cold and noise" At the time of the design of Fagus, Gropius was collecting photographs of industrial buildings in the USA to be used for a Deutscher Werkbund publication. The design of these American factories was also a source of inspiration for Fagus. Carl Benscheidt (1858–1947) founded the Fagus company in 1910. He had then