Ultraviolet radiation (UV) is a minor fraction of the solar spectrum reaching the ground
surface. In this assessment we summarize the results of previous work on the effects of the …

The Antarctic environment is extremely cold, windy and dry. Ozone depletion has resulted in
increasing ultraviolet-B radiation, and increasing greenhouse gases and decreasing …

Antarctic fellfields present organisms with a heterogeneous habitat characterised by a wide
variety of environmental stresses. These include low temperatures, limited moisture …

The terrestrial ecosystem of Antarctica are among the most extreme on earth, challenging
the communities and making their existence difficult by rapidly increasing annual summer …

UV-B absorbing compounds (UACs) in present-day and fossil pollen, spores, cuticles, seed
coats and wood have been evaluated as a proxy for past UV. This proxy may not only …

We quantified the metabolic cost to the Antarctic leafy liverwort Cephaloziella varians of
responding to an abrupt increase in ultraviolet B (UVB) radiation exposure in the natural …

The biology and ecology of Cephaloziella varians, the most widespread and abundant
liverwort in Antarctica, are reviewed. A description of the species is given, together with …

The net photosynthetic rate (NP), chlorophyll fluorescence, carotenoid content and
chlorophyll content of the cosmopolitan moss Bryum argenteum were measured in the field …

Arctic ecosystems are increasingly exposed to extreme climatic events throughout the year,
which can affect species performance. Cryptogams (bryophytes and lichens) provide …

Excessive exposure to ultraviolet (UV) radiation can be harmful to photosynthetic organisms,
that most frequently respond with the accumulation of protective UV‐absorbing compounds …