Are enchytraeid worms (Oligochaeta) sensitive indicators of ammonia-N impacts on an ombrotrophic bog? European Journal of Soil Biology. 44(1):101-108.. 2008.
Carbon and nitrogen cycling in Sphagnum capillifolium in response to nitrogen deposition and form . :592-594.. 2008.
Concentration-dependent deposition velocities for ammonia – from lab to field. Geophysical Research Abstracts. 10. 2008.
Does elevated nitrogen deposition or ecosystem recovery from acidification drive increased dissolved organic carbon loss from upland soil? A review of evidence from field nitrogen addition experiments Biogeochemistry. 91(1):13-35.. 2008.
Does enhanced nitrogen deposition represent a threat to Sphagnum and thus the sustainability of Scottish peatlands? Land management in a changing environment. :291-297.. 2008.
Estimate of annual NH3 dry deposition to a fumigated ombrotrophic bog using concentration-dependent deposition velocities.. Atmospheric Environment. 42(27):6637-6646.. 2008.
Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology. 196(1):111-121.. 2008.
Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology. 196:111-121.. 2008.
Sources, dispersion and fate of atmospheric ammonia. Nitrogen in the Environment - Sources, Problems, and Management. :333-393.. 2008.
Stress responses of Calluna vulgaris to reduced and oxidised N applied under 'real world conditions'. Environmental Pollution. 154(3):404-413.. 2008.
All forms of reactive nitrogen deposition to Natura 2000 sites should not be treated equally: effects of wet versus dry and reduced versus oxidised nitrogen deposition.. Workshop at the Bedford Hotel and Conference Centre, Brussel.. 2009.
Critical Levels for Ammonia. Atmospheric Ammonia. :375-382.. 2009.
Evaluation of N indicators on ombrotrophic acid bogs: Observations from an N manipulation study. Workshop at the Bedford Hotel and Conference Centre, Brussels.. 2009.
Evidence for changing the critical level for ammonia. Environmental Pollution. 157(3):1033-1037.. 2009.
Long-Term Cumulative Exposure Exacerbates the Effects of Atmospheric Ammonia on an Ombrotrophic Bog: Implications for Critical Levels. Atmospheric Ammonia. :49-58.. 2009.
New science on the effects of N deposition and concentrations on Natura 2000 sites, including bio-indicators, effects of N-form (e.g., NHx vs NOy), and the relationships between critical thresholds and biodiversity loss.. Workshop at the Bedford Hotel and Conference Centre, Brussels.. 2009.
Potential for the Further Development and Application of Critical Levels to Assess the Environmental Impacts of Ammonia. Atmospheric Ammonia. :41-48.. 2009.
Reassessment of Critical Levels for Atmospheric Ammonia. Atmospheric Ammonia. :15-40.. 2009.
Response of enchytraeid worm populations to different forms of nitrogen (ammonia, ammonium, and nitrate) deposition.. Soil Organisms. 81(2):225-236.. 2009.
Standardised Grasses as Biomonitors of Ammonia Pollution Around Agricultural Point Sources. Atmospheric Ammonia. :269-279.. 2009.
Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland. Environmental Pollution. 158(10):3157-3163.. 2010.
Response of phosphomonoesterase activity in the lichen Cladonia portentosa to nitrogen and phosphorus enrichment in a field manipulation experiment. New Phytologist. 186(4):926-933.. 2010.
Turnover of labile and recalcitrant soil carbon differ in response to nitrate and ammonium deposition in an ombrotrophic peatland.. Global Change Biology. 16:2307-2321.. 2010.