Development of a rationale for monitoring / John M. Hellawell -- Scientific requirements of a monitoring programme / Michael B. Usher -- Remote sensing techniques for monitoring land-cover / Jonathan T.C. Budd -- Monitoring plant populations : census as an aid to conservation / Michael J. Hutchings -- Vegetation monitoring / Barrie Goldsmith -- Monitoring butterfly numbers / Ernest Pollard -- Monitoring terrestrial breeding bird populations / Stephen R. Baillie -- National species distribution surveys / Paul T. Harding -- Monitoring at the county level / Claire E. Appleby -- Field monitoring : confessions of an addict / Kevin A. Roberts -- Monitoring overseas : Prespa National Park, Greece / Barrie Goldsmith -- The calculation of index numbers from wildlife monitoring data / Terence J. Crawford -- Biological monitoring and ecological prediction : from nature reserve management to national state of the environment indicators / Paul A. Keddy -- Synthesis / Barrie Goldsmith