The excrement delivers nutrients like phosphorus and nitrogen, kick-starting islands of vegetation at the edge of the cryosphere.
permafrost
Posted inEditors' Highlights
Thawing Permafrost May Cause Streams to Cool
Permafrost thawing associated with climate warming increases contributions to streamflow by deeper, cooler groundwater flow paths, which may result in lower summer stream temperatures.
Posted inNews
Experimentos Revelan Cómo el Carbono del Permafrost se Convierte en Dióxido de Carbono
Muestras de campo provenientes de Alaska muestran cómo la luz solar y el hierro convierten el carbono del permafrost en dióxido de carbono. Los modelos climáticos ignoran este proceso.
Posted inResearch Spotlights
¿Cómo Afecta el Reverdecimiento del Ártico al Agua Subterránea?
Nuevas investigaciones examinan cómo los cambios en la ecología de la superficie influyen en la hidrología subterránea en el Ártico.
Posted inResearch Spotlights
Predicting the Next Big Frost Quake
Frost quakes occur in boreal regions when rapidly expanding ice underground causes frozen soils to fracture. A recent frost quake in Finland has given scientists a rare look into how they form.
Posted inNews
Wildfires Trigger Long-Term Permafrost Thawing
Researchers used satellite data to trace ground subsidence in a permafrost-rich region in eastern Siberia following a wildfire.
Posted inEditors' Highlights
Downhill from Here: Landscape Positions and Greenhouse Emissions
In comparing soils from two tundra wetland landscape positions, landscape position is found to matter, and toeslopes are associated with higher greenhouse gas production.
Posted inNews
Experiments Reveal How Permafrost Carbon Becomes Carbon Dioxide
Field samples from Alaska show how sunlight and iron convert permafrost carbon to carbon dioxide. Climate models ignore this process.
Posted inNews
The Ticking Time Bomb of Arctic Permafrost
Arctic infrastructure is under threat from thawing permafrost.
Posted inResearch Spotlights
How Does a Greening Arctic Affect Groundwater Recharge?
New research examines how shifts in aboveground ecology influence belowground hydrology in the Arctic.