This Handbook, first published in 2005, provides standard procedures for planning and conducting a survey of any species or habitat and for evaluating the data.Biodiversity is recognised to be of global importance, yet species and habitats continue to be under increasing pressure from human-induced influences. This Handbook provides standard procedures which will enable practitioners to better monitor the condition of the biodiversity resource, resulting in improved data upon which to base future policy decisions and actions. Organised in three parts, the Handbook first addresses planning, covering method selection, experimental design, sampling strategy, and data analysis/evaluation. Parts 2 and 3 then describe detailed methods of survey, evaluation and monitoring of habitats and species respectively.Biodiversity is recognised to be of global importance, yet species and habitats continue to be under increasing pressure from human-induced influences. This Handbook provides standard procedures which will enable practitioners to better monitor the condition of the biodiversity resource, resulting in improved data upon which to base future policy decisions and actions. Organised in three parts, the Handbook first addresses planning, covering method selection, experimental design, sampling strategy, and data analysis/evaluation. Parts 2 and 3 then describe detailed methods of survey, evaluation and monitoring of habitats and species respectively.Biodiversity is recognized to be of global importance, yet species and habitats continue to be under increasing pressure from human-induced influences. Environmental concerns are high on the political agenda, driving increased legislation to protect the natural environment. The starting point for much of this legislation is the requirement for a comprehensive biodiversity audit. This Handbook provides standard procedures which will enable practitioners to better monitor the condition of the biodiversity resource, resulting in iml3$