@article {1568,
	title = {Inertia in an ombrotrophic bog ecosystem in response to nine years{\textquoteright} realistic perturbation by wet deposition of nitrogen, separated by form.},
	volume = {20},
	year = {2014},
	pages = {566-580},
	author = {Sheppard L.J. and Leith, I.D. and Mizunuma, T. and Leeson, S. and Kivimaki, S. and Cape, J.N. and van Dijk, N. and Leaver, D. and Sutton, M.A. and Fowler, D. and Van Den Berg, L.J.L. and Crossley, A. and Field, C. and Smart, S.}
}
@article {1679,
	title = {Inertia in an ombrotrophic bog ecosystem in response to nine years{\textquoteright} realistic perturbation by wet deposition of nitrogen, separated by form},
	year = {2013},
	author = {Sheppard, L.J. and Leith, I.D. and Mizunuma, T. and Leeson, S. and Kivimaki, S.K. and Cape, J.N. and van Dijk, N. and Leaver, D. and Sutton, M.A. and Fowler, D. and Van Den Berg, L.J.L. and Crossley, A. and Field, C. and Smart, S.M.}
}
@article {1569,
	title = {PK additions modify the effects of N dose and form on species composition, species litter chemistry and peat chemistry in a Scottish peatland.},
	volume = {116},
	year = {2013},
	pages = {39-53},
	author = {Sheppard, L.J. and Leith, I.D. and van Dijk, N. and Leeson, S. and Mizunuma, T. and De Bakker, R. and Elustando, D.E.V. and Gomez, H.G.}
}
@article {1325,
	title = {Impacts of atmospheric nitrogen deposition: responses of multiple plant and soil parameters across contrasting ecosystems in long-term field experiments},
	volume = {18},
	year = {2012},
	pages = {1197-1215},
	author = {Phoenix, G.K. and Emmett, B.A. and Britton, A.J. and Caporn, S.J.M. and Dise, N.B. and Helliwell, R. and Jones, M.L.M. and Leake, J.R. and Leith, I.D. and Sheppard, L.J. and Sowerby, A. and Pilkington, M.G. and Rowe, E.C. and Ashmore MR and Power, S.A.}
}
@article {1562,
	title = {Climatic modifiers of the response to N deposition in peat-forming Sphagnum mosses: a meta-analysis.},
	volume = {191},
	year = {2011},
	pages = {496-507},
	author = {Limpens, J. and Sheppard, L.J. and Leith, I.D.}
}
@article {1279,
	title = {Dry deposition of ammonia gas drives species change faster than wet deposition of ammonium ions: evidence from a long-term field manipulation},
	volume = {17 (12)},
	year = {2011},
	pages = {3589-3607},
	author = {Sheppard, L.J. and Leith, I.D. and Mizunuma, T. and Cape, J.N and Crossley, A. and Leeson S. and Sutton, M.A. and Fowler, D. and van Dijk, N.}
}
@inbook {1285,
	title = {Moninea Bog - Case study of atmospheric ammonia impacts on a Special Area of Conservation},
	booktitle = {In: Hicks, W.K.; Whitfield, C.P.; Bealey, W.J.; Sutton, M.A., (eds.) Nitrogen deposition and Natura 2000: Science and practice in determining environmental impacts},
	year = {2011},
	pages = {59-71},
	publisher = {COST Office - European Cooperation in Science and Technology,.},
	organization = {COST Office - European Cooperation in Science and Technology,.},
	author = {Sutton, M.A. and Leith, I.D. and Bealey, W. J and van Dijk, N. and Tang, Y.S.}
}
@article {1303,
	title = {Physiological and morphological effects of long-term ammonium or nitrate deposition on green and red (shade and open grown) Sphagnum capillifolium},
	volume = {72},
	year = {2011},
	pages = {140-148},
	author = {Manninen, S. and Woods, C. and Leith, I.D. and Sheppard, L.J.}
}
@article {1283,
	title = {Evidence for changing the critical level for ammonia},
	volume = {157},
	year = {2009},
	pages = {1033-1037},
	author = {Cape, J.N and van der Eerden, L.J. and Sheppard, L.J. and Leith, I.D. and Sutton, M.A.}
}
@article {1286,
	title = {Short-term flux chamber experiment to quantify the  deposition of gaseous 15N-NH3 to Calluna vulgaris},
	volume = {148 (6-7)},
	year = {2008},
	pages = {893-901},
	author = {Jones, M.R. and Raven, J.A. and Leith, I.D. and Cape, J.N and Smith, R.I. and Fowler, D.}
}
@article {1280,
	title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under real world conditions},
	volume = {154 (3)},
	year = {2008},
	pages = {404-413},
	author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.}
}
@article {87,
	title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under {\textquoteright}real world conditions{\textquoteright}},
	journal = {Environmental Pollution},
	volume = {154},
	year = {2008},
	pages = {404-413},
	author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.}
}
@article {1307,
	title = {Potassium and phosphorus additions modify the response of Sphagnum capillifolium growing on a Scottish ombrotrophic bog to enhanced nitrogen deposition},
	volume = {22},
	year = {2007},
	pages = {1111{\textendash}1121},
	author = {Carfrae, J. A. and Sheppard, L.J. and Raven, J.A. and Leith, I.D. and Crossley, A.}
}
@article {1277,
	title = {Diagnostic indicators of elevated nitrogen deposition},
	volume = {144},
	year = {2006},
	author = {Pitcairn, C.E.R. and Fowler D. and Leith, I.D. and Sheppard, L.J. and Tang, Y.S. and Sutton, M.A. and Famulari D.}
}
@inbook {1278,
	title = {Refining and testing the Ellenberg Index  biomonitoring method at the intensive sites},
	year = {2005},
	pages = {230},
	publisher = {JNCC},
	organization = {JNCC},
	edition = {Biomonitoring methods for assessing the impacts of nitrogen pollution: refinement and testing},
	chapter = {4},
	author = {Pitcairn, C.E.R. and Leith, I.D. and van Dijk N. and Sutton, M.A.}
}
@article {1281,
	title = {An Automated Wet Deposition System to Compare the Effects of Reduced and Oxidised N on Ombrotrophic Bog Species: Practical Considerations},
	volume = {4 (6)},
	year = {2004},
	pages = {197-205},
	author = {Sheppard, L.J. and Crossley, A. and Leith, I.D. and Hargreaves, K.J. and Carfrae, J. and van Dijk, N. and Cape, J.N and Sleep, D. and Fowler, D. and Raven, J.A.}
}
@article {253,
	title = {Bioindicator and biomonitoring methods for assessing the effects of atmospheric nitrogen on statutory nature conservation sites},
	year = {2004},
	address = {Peterborough},
	author = {Sutton, M.A. and Pitcairn, C.E.R. and Leith, I.D. and van Dijk, N. and Tang, Y.S. and Skiba, U. and Smart, S. and Mitchell, R. and Wolseley, P. and James, P. and Purvis, W. and Fowler, D.},
	editor = {Sutton, M.A. and Pitcairn, C.E.R. and Whitfield, C.P.}
}
@article {1567,
	title = {Effects of enhanced N deposition on Cladonia portentosa; results from a field manipulation study.},
	number = {525 ISSN 0967-876X},
	year = {2004},
	pages = {51-62},
	institution = {English Nature},
	address = {Peterborough},
	author = {Sheppard, L.I. and Leith, I.D. and Crossley, A.}
}
@article {1564,
	title = {Growth and tissue nitrogen of epiphytic Atlantic bryophytes: effects of increased and decreased atmospheric N deposition.},
	volume = {18},
	year = {2004},
	pages = {322-329},
	author = {Mitchell, R.J. and Truscott, A.M. and Leith, I.D. and Cape, J.N. and van Dijk, N. and Tang, Y.S. and Fowler, D. and Sutton, M.A.}
}
@article {1284,
	title = {Quantifying dry  NH3 release system to ombrotrophic bog from an automated NH3 field release system},
	volume = {4},
	year = {2004},
	pages = {207-218.},
	author = {Leith, I.D. and Sheppard, L.J. and Fowler, D. and Cape, J.N and Jones, M.R. and Crossley, A. and Hargreaves, K.J. and Tang, Y.S. and Theobald, M.R. and Sutton, M.A.}
}
@book {1579,
	title = {Impact of atmospheric nitrogen deposition on epiphytes in Atlantic oakwoods.},
	year = {2003},
	author = {Mitchell, R.J. and Truscott, A.M. and Leith, I.D. and Tang, Y.S. and van Dijk, N. and Smith, R.I. and Sutton, M.A.}
}
@article {659,
	title = {Comparison of the effects of dry deposited N as NH3 with wet deposited N as NH4Cl on acid moorland vegetation.},
	year = {2001},
	author = {Leith, I.D. and Sheppard, L.J. and Pitcairn, C.E.R. and Cape, J.N and Hill, P.W. and Kennedy, V.H. and Tang, Y.S. and Smith, R.I. and Fowler D.}
}
@article {613,
	title = {Can the foliar nitrogen concentration of upland vegetation be used for predicting atmospheric nitrogen deposition? Evidence from field surveys. },
	volume = {107},
	year = {2000},
	pages = {367-376},
	author = {Hicks, W.K. and Leith, I.D. and Woodin, S.J. and Fowler, D.}
}
@conference {237,
	title = {Reinvasion of urban areas by black spot and tar spot},
	booktitle = {CAPER 2000, 11-13th April},
	year = {2000},
	address = {Birmingham},
	author = {Jarraud, N.S. and Bell, J.N. and Leith, I.D. and Fowler, D. and Archer, S.A.A.}
}
@article {85,
	title = {The relationship between nitrogen deposition, species composition and foliar nitrogen concentrations in woodland flora in the vicinity of livestock farms.},
	journal = {Environmental Pollution },
	volume = {102},
	year = {1998},
	pages = {41-48},
	author = {Pitcairn, C.E.R. and Leith, I.D. and Sheppard, L.J. and Sutton, M.A. and Fowler, D. and Munro, R.C. and Tang, S. and Wilson, D.}
}
@article {251,
	title = {Soil nitrous oxide and nitric oxide emissions as indicators of the exceedance of critical loads of atmospheric nitrogen deposition in semi-natural ecosystems},
	journal = {Environmental Pollution},
	volume = {102},
	year = {1998},
	pages = {457-461},
	author = {Skiba, U. and Sheppard, L.J. and Pitcairn, C.E.R. and Leith, I.D. and Crossley, A. and van Dijk, S. and Kennedy, V.J. and Fowler, D.}
}
@article {545,
	title = {The influence of acid rain mists on growth, dry matter partitioning, nutrient concentrations and mycorrhizal fruiting bodies in red spruce seedlings.},
	volume = {115},
	year = {1994},
	pages = {459-464},
	author = {Deans, J.D. and Leith, I.D. and Sheppard, L.J. and Cape, J.N and Fowler D. and Murry, M.B. and Mason, P.A.}
}
@article {281,
	title = {The influence of altitude on rainfall composition at Great Dun Fell},
	journal = {Atmospheric Environment},
	volume = {22},
	year = {1988},
	pages = {1355-1362},
	author = {Fowler, D. and Cape, J.N and Leith, I.D. and Choularton, T.W. and Gay, M.J. and Jones, A.}
}
@article {238,
	title = {Urban distribution of Rhytisma acerinum (Pers.) Fries (tar spot) on sycamore},
	journal = {New Phytologist},
	volume = {108},
	year = {1988},
	pages = {175-181},
	author = {Leith, I.D. and Fowler, D.}
}
