Identifying the key drivers of nitrogen cycling processes that influence gaseous N exchanges
in arctic ecosystems is essential for predicting the response of northern systems to changes …

Global environmental change, related to climate change and the deposition of airborne N‐
containing contaminants, has already resulted in shifts in plant community composition …

Climate change is creating widespread ecosystem disturbance across the permafrost zone,
including a rapid increase in the extent and severity of tundra wildfire. The expansion of this …

Moss-associated N 2 fixation provides a substantial but heterogeneous input of new N to
nutrient-limited ecosystems at high latitudes. In spite of the broad diversity of mosses found …

Climate change in arctic tundra is projected to increase soil fertility, which may alter plant
community composition and ecosystem processes by shifting niche space to favour …

The efforts to explain the 'missing sink'for anthropogenic carbon dioxide (CO2) have
included in recent years the role of nitrogen as an important constraint for biospheric carbon …

Nitrogen‐fixing epiphytes (especially lichens with a cyanobacterial symbiont—cyanolichens)
have the potential to contribute significant amounts of nitrogen (N) to montane tropical …

Climate warming will induce changes in Arctic ecosystem carbon balance, but besides
climate, nitrogen availability is a critical controlling factor of carbon cycling. It is therefore …

The circumboreal/circumpolar N2‐fixing lichen Stereocaulon vesuvianum is among the most
widespread and abundant fruticose species in montane Britain but has lost the capacity to fix …

Atmospheric nitrogen that is fixed by associative cyanobacteria can be released into the
surrounding soil environment providing a key source of N for arctic ecosystems. Yet, little is …