Latest Ecological threshold Stories
Predation by otters keeps urchin populations in check, allowing kelp –– a favorite food of urchins –– to flourish.
Slight changes in climate may trigger major abrupt ecosystem responses that are not easily reversible.
Unparalleled warming over the last few decades has triggered widespread ecosystem changes in many temperate North American and Western European lakes, say researchers at Queen's University and the Ontario Ministry of the Environment.The team reports that striking changes are now occurring in many temperate lakes similar to those previously observed in the rapidly warming Arctic, although typically many decades later. The Arctic has long been considered a "bellwether" of what will eventually...