Signal: changing forests
ArtcticShrubSpreadSiberia

Shrub takeover a sign of Arctic change

by on 20. Jan, 2012 in Uncategorized

In the 2011 Arctic Report Card, scientists concluded that the Arctic environment has undergone a fundamental shift in conditions, and that the Arctic of recent years—warmer, greener, less icy—is likely to be the new normal for the Far North. One sign of the ongoing transformation of the Arctic is the spread of shrubs across the [...]

bedstraw

Oregon forest understory changing in response to warming

by on 26. Oct, 2010 in Uncategorized

We analyzed change in understory herb communities over a 60-y period (1949/1951–2007/2009) in a complex montane landscape (the Siskiyou Mountains, Oregon) where mean temperatures have increased 2 °C since 1948, similar to projections for other terrestrial communities. Our 185 sites included primary and secondary-growth lower montane forests (500–1.200 m above sea level) and primary upper [...]