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Long-term climate warming is producing a bleaching effect in a key Arctic lichen species, according to research conducted by scientists at the School of GeoSciences and the British Antarctic Survey. The study documents how rising temperatures are disrupting the physiology and coloration of one of the Arctic's most ecologically significant and widely distributed organisms. These findings indicate that thermal stress is visibly altering lichen condition in ways that could signal broader functional decline.
Why it matters
Arctic lichens form a foundational component of tundra ecosystems, serving as soil stabilizers, nitrogen fixers, and a primary food source for species such as reindeer and caribou, meaning their degradation could trigger cascading ecological consequences. This research adds to growing evidence that climate change is restructuring polar ecosystems in ways that extend well beyond temperature records alone.
Long-term climate warming is causing a bleaching effect in a key Arctic lichen species, according to new research led by researchers in the School of GeoSciences and British Antarctic Survey. Their study shows how rising temperatures are disrupting one of the Arctic’s most important and widespread organisms, with potential consequences for fragile tundra ecosystems.
Source: Climate warming causes bleaching in key Arctic lichen, study finds