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Bleeker, A. (author), Duprè, C. (author), Gowing, D.J.G. (author), Diekmann, M. (author), Alard, D. (author), Corcket, E. (author), Jandt, U. (author), Stevens, C.J. (author)We aimed to answer the question of whether the species richness and composition of calcareous grasslands in North-western Germany had changed over the last 70 years as a result of atmospheric nitrogen (N) deposition. In total, 1186 plots of Festuco-Brometea (alliance Bromion erecti) grasslands from the suboceanic regions of the country were...article 2014
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Bleeker, A. (author), Fowler, D. (author), Stevens, C.J. (author), Duprè, C. (author), Dorland, E. (author), Gaudnik, C. (author), Gowing, D.J.G. (author), Diekmann, M. (author), Alard, D. (author), Corcket, E. (author), Mountford, J.O. (author), Vandvik, V. (author), Aarrestad, P.A. (author), Muller, S. (author), Dise, N.B. (author), Bobbink, R. (author)-article 2011
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Bleeker, A. (author), Fowler, D. (author), Stevens, C.J. (author), Duprè, C. (author), Dorland, E. (author), Gaudnik, C. (author), Gowing, D.J.G. (author), Diekmann, M. (author), Alard, D. (author), Corcket, E. (author), Mountford, J.O. (author), Vandvik, V. (author), Aarrestad, P.A. (author), Muller, S. (author), Dise, N.B. (author), Bobbink, R. (author)A survey of 153 acid grasslands from the Atlantic biogeographic region of Europe indicates that chronic nitrogen deposition is changing plant species composition and soil and plant-tissue chemistry. Across the deposition gradient (2e44 kg N ha_1 yr_1) grass richness as a proportion of total species richness increased whereas forb richness...article 2011
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Bleeker, A. (author), Stevens, C.J. (author), Manning, P. (author), van den Berg, L.J.L. (author), de Graaf, M.C.C. (author), Wamelink, G.W.W. (author), Boxman, A.W. (author), Vergeer, P. (author), Arroniz-Crespo, M. (author), Limpens, J. (author), Lamers, L.P.M. (author), Bobbink, R. (author), Dorland, E. (author)While it is well established that ecosystems display strong responses to elevated nitrogen deposition, the importance of the ratio between the dominant forms of deposited nitrogen (NHx and NOy) in determining ecosystem response is poorly understood. As large changes in the ratio of oxidised and reduced nitrogen inputs are occurring, this...article 2011
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Bleeker, A. (author), Stevens, C.J. (author), Duprè, C. (author), Dorland, E. (author), Gaudnik, C. (author), Gowing, D.J.G. (author), Diekmann, M. (author), Alard, D. (author), Corcket, E. (author), Aarrestad, P.A. (author), Dise, N.B. (author), Bobbink, R. (author), Wotherspoon, K.A. (author), Rotthier, S. (author), Soons, M.B. (author)There is a growing evidence base demonstrating that atmospheric nitrogen deposition presents a threat to biodiversity and ecosystem function in acid grasslands in Western Europe. Here, we report the findings of a workshop held for European policy makers to assess the perceived importance of reactive nitrogen deposition for grassland conservation...article 2011
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Bleeker, A. (author), Fowler, D. (author), Stevens, C.J. (author), Duprè, C. (author), Dorland, E. (author), Gaudnik, C. (author), Gowing, D.J.G. (author), Diekmann, M. (author), Alard, D. (author), Bobbink, R. (author), Corcket, E. (author), Mountford, J.O. (author), Vandvik, V. (author), Aarrestad, P.A. (author), Muller, S. (author), Dise, N.B. (author)Evidence from an international survey in the Atlantic biogeographic region of Europe indicates that chronic nitrogen deposition is reducing plant species richness in acid grasslands. Across the deposition gradient in this region (2e44 kg N ha_1 yr_1) species richness showed a curvilinear response, with greatest reductions in species richness...article 2010