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Serrano H.C, Köbel M., Jones M., van Dijk N, Dragosits U, Pinho P., Oliveira M.A, Matos P., Branquinho C, Sutton M.  0.  Assessment of plant species performance along an ammonia gradient. CAPERMED.
Sheppard L.J., Leith I.D., Kivimaki S.K., Gaiawyn J..  2014.  The form of reactive nitrogen deposition is important for the provision of ecosystem services. Nitrogen Deposition, Critical Loads and Biodiversity.
Sheppard L.J, Leith I.D, Crossley A., van Dijk N., Fowler D., Sutton M.A, Woods C..  2008.  Stress responses of Calluna vulgaris to reduced and oxidised N applied under 'real world conditions'. Environmental Pollution. 154(3):404-413.
Sheppard L.J., Leith I.D..  2002.  Effects of NH3 Fumigation on the Frost Hardiness of Calluna- Does N Deposition Increase Winter Damage by Frost? Phyton. 42:183-190.
Sheppard L.J., Leith I.D., Kivimaki S.K., van Dijk N., Hall J., Bruneau P., Grace J., Rees R.M..  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.
Sheppard L.J., Crossley A., Leith I.D., Hargreaves K.J., Carfrae J.A., van Dijk N., Cape J.N., Sleep D., Fowler D., Raven J..  2004.  An automated wet deposition system to compare the effects of reduced and oxidised N on ombrotrophic bogs.. Water, Air and Soil Pollution: Focus. 4:197-205.
Sheppard L.J., Leith I.D., Crossley A., van Dijk N., Cape J.N., Fowler D., Sutton M.A..  2009.  Long-Term Cumulative Exposure Exacerbates the Effects of Atmospheric Ammonia on an Ombrotrophic Bog: Implications for Critical Levels. Atmospheric Ammonia. :49-58.
Sheppard L.J., Leith I.D., Crossley A..  2004.  Effects of enhanced N deposition on Cladonia portentosa; results from a field manipulation study.. Nitrogen in the Envrionment.
Sheppard L.J., Leith I.D., Leeson S., van Dijk N., Cape J.N., Fowler D., Field C..  2011.  Nitrogen form makes a difference to the responses of a peatland to enhanced reactive nitrogen deposition [abstract]. Book of Abstracts: Joint Society of Wetland Scientists. :289.
Sheppard L.J., Leith I.D., Mizunuma T., van Dijk N., Cape J.N., Sutton M.A..  2009.  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.
Sheppard L.J., Wallander H..  2005.  Atmospheric Nitrogen – Pollutant or fertiliser? Nitrogen Acquisition and assimilation in Higher Plants . :65-98.
Sheppard L.J., Leith I.D., Mizunuma T., van Dijk N., Cape J.N., Sutton M.A..  2011.  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. Nitrogen deposition and Natura 2000: Science and practice in determining environmental impacts. :181-190.
Sheppard L.J., Leith I.D., Leeson S., Mizunuma T., de Bakker R., Elustondo D., Garcia-Gomez H..  2013.  PK additions modify the effects of N dose and form on species composition, species litter chemistry and peat chemistry in a Scottish peatland. Biogeochemistry. 116(1-3):39-53.
Sheppard L.J., Leith I.D., Mizunuma T., Leeson S., Kivimaki S., Cape J.N, van Dijk N., Leaver D., Sutton M.A., Fowler D. et al..  2014.  Inertia in an ombrotrophic bog ecosystem in response to 9 years' realistic perturbation by wet deposition of nitrogen, separated by form. Global Change Biology. 20(2):566-580.
Sheppard L.J, Leith I.D, Mizunuma T., Cape J.N., Crossley A., Leeson S., Sutton M.A., Fowler D., van Dijk N..  2011.  Dry deposition of ammonia gas drives species change faster than wet deposition of ammonium ions: evidence from a long-term field manipulation. Global Change Biology. 17(12):3589-3607.
Sheppard L.J., Leith I.D., Field C., van Dijk N., Rung M., Skiba U..  2008.  2008 Effects of different nitrogen forms, ammonia gas and wet deposited ammonium and nitrate, on methane and nitrous oxide emissions from an ombrotrophic bog, whim moss, in the Scottish Borders.. :628-631.
Sheppard L.J, Leith I.D, Leeson S.R, van Dijk N., Field C., Levy P..  2013.  Fate of N in a peatland, Whim bog: immobilisation in the vegetation and peat, leakage into pore water and losses as N2O depend on the form of N. Biogeosciences. 10(1):149-160.
Skinner R., Ineson P., Hicks W.K, Jones H.E, Sleep D., Leith I.D, Sheppard L.J.  2005.  Correlating the spatial distribution of atmospheric ammonia with δ15n values at an ammonia release site. Water, Air and Soil Pollution: Focus. 4(6):219-228.
Skinner R., Ineson P., Hicks W.K., Jones H.E., Sleep D., Leith I.D., Sheppard L.J..  2004.  Correlating the spatial distribution of atmospheric ammonia with delta N-15 values at an ammonia release site. Water, Air and Soil Pollution: Focus. 4:219-228.
Skinner R.A, Ineson P., Jones H., Sleep D., Leith I.D, Sheppard L.J.  2006.  Heathland vegetation as a bio-monitor for nitrogen deposition and source attribution using delta N-15 values. Atmospheric Environment. 40(3):498-507.
Stephens A, Leeson S, Jones M, Simmons I, van Dijk N, Poskitt J, Keenan P.O., Pereira M.G., Gates L, Hangartner M et al..  2017.  MetNH3 Whim Bog Intercomparison Off-line ammonia metrology intercomparison. . :26pp..
Strengbom J., Anderson H.V., Aazem K., Adema E.B., Alard D., Bobbink R., Bringmark L., Buchwald E., Cape J.N., Cruz C. et al..  2011.  New science on the effects of nitrogen deposition and concentrations on Natura 2000 sites (theme 3): working group report. Nitrogen deposition and Natura 2000: Science and practice in determining environmental impacts. :129-136.
Sutton M.A., Pitcairn C.E.R., Whitfield C., Leith I.D., Sheppard L.J., van Dijk N., Tang S., Skiba U., Smart S., Mitchell R. et al..  2003.  Biomonitor methods for assessing effects of atmospheric nitrogen on statuary nature conservation sites..
Sutton M.A., Sheppard L.J., Fowler D..  2009.  Potential for the Further Development and Application of Critical Levels to Assess the Environmental Impacts of Ammonia. Atmospheric Ammonia. :41-48.

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