Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Author "Johnson, David"

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Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Author "Johnson, David"

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  • Arctic microorganisms respond more to elevated UV-B radiation than CO2 
    Lee, John A.; Campbell, Colin D.; Callaghan, Terry V.; Gwynn-Jones, Dylan; Johnson, David (2002-03-07)
    Surface ultraviolet-B radiation and atmospheric CO2 concentrations have increased as a result of ozone depletion and burning of fossil fuels1, 2. The effects are likely to be most apparent in polar regions3 where ozone ...
  • Arctic microorganisms respond more to elevated UV-B radiation than CO2 
    Johnson, David; Campbell, Colin D.; Lee, John A.; Callaghan, Terry V.; Gwynn-Jones, Dylan (Nature Publishing Group, 2002)
    Surface ultraviolet-B radiation and atmospheric CO2 concentrations have increased as a result of ozone depletion and burning of fossil fuels1, 2. The effects are likely to be most apparent in polar regions3 where ozone ...
  • Brief Communications - UV-B radiation and soil microbial communities - Reply. 
    Callaghan, Terry V.; Johnson, David; Campbell, Colin D.; Lee, John A.; Gwynn-Jones, Dylan (2003)
    Stark and Hart question our finding that increased UV-B irradiation affects the biomass C:N ratio of Arctic soil microbial communities. Our data for microbial carbon biomass (Cmic; 1.0–3.1 mg per g soil) and nitrogen (Nmic; ...

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