This iconic Humboldt map may need crucial updates

Errors in an 1807 diagram cast doubt on studies of the Andes’ long-term ecological changes

Tableau Physique

MOUNTAIN MAPPER  Alexander von Humboldt’s 1807 Tableau Physique pioneered a new kind of scientific visualization, combining vegetation and elevation data into one diagram. But later revisions have been overlooked by some modern researchers.

Zentralbibliothek Zürich/Wikimedia commons

An influential diagram of plants growing on the slopes of some Andes Mountains needs an update, scientists say.