Penguin Poop Is Melting Antarctic Snow by Keeping Algae Green
Scientists found guano-fed green algae absorb 40% more sunlight than clean snow, helping coastal Antarctic snowpacks melt faster, the study said.
- A new study in the Journal of Geophysical Research Biogeosciences found penguin guano fertilizes snow algae, darkening the Antarctic surface and accelerating snowmelt across the region.
- Penguins feast on marine life at sea, returning to land to spread phosphate-rich guano across the snow, which fuels dense green algal blooms. This waste provides nutrients for algae to boost photosynthesis.
- Green snow absorbs about 40 percent more energy from sunlight than clean snow, while red snow absorbs about 20 percent more. Current climate models exclude these biological darkening effects, causing researchers to underestimate future ice-free terrain.
- Researchers traveled through the Drake Passage to reach the West Antarctic Peninsula and collect samples. Study author Alia Khan, a cryosphere biogeochemist at the University of Colorado Boulder, observed that fieldwork near penguins involves intense conditions.
- As a warming climate nudges penguins further south, guano-fertilized algae blooms will likely spread across Antarctica. This expansion suggests biological darkening effects will continue accelerating ice-free terrain growth throughout the region.
19 Articles
19 Articles
Aftenposten
Penguin feces provide nourishment to green snow algae that cause the snow along the coast of Antarctica to melt faster, a study shows.
Penguin Guano Drives Antarctic Snowmelt via Algal Pigmentation
In West Antarctica, the relationship between penguin colonies and snowmelt is not merely observational but mechanistic. A study published in Journal of Geophysical Research: Biogeosciences (JGRB) identifies a direct causal link between the metabolic output of penguin populations and the accelerated melting of the snowpack. The central driver of this interaction is penguin guano, which acts as a nutrient source for specific cryophilic algae, fund…
Svenska Dagbladet
Pooping penguins are inadvertently driving snowmelt in Antarctica, a new study shows.
Science Writing, 7 Oct (EFE).- Penguins have been placed at the center of a biological chain that is accelerating the thaw in Antarctica, as guano (excrement) is contributing to a greater fertilization of green algae and indirectly to a darkening of the snow that absorbs much more solar energy and [...] The Entrance The Penguins, in the center of a biological chain that accelerates thaw in Antarctica was first published in HolaNews.
Penguin poop is melting Antarctic snow by keeping algae green
Penguin poop is fertilizing snow algae blooms along the Antarctic Peninsula, feeding dense green algae patches along the coastline, a new study shows. These expanding stretches of green snow melt faster than clean, white snow, potentially speeding up the spread of snow- and ice-free areas of Antarctica.
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