Field identification of habitats directive Annex I habitats as a major European biodiversity indicator

摘要: Abstract Annex I of the EU Habitats Directive lists habitats which must be protected by designation and management areas in European Union. These are therefore a key indicator biodiversity although organised into nine groups, there is no way to identify them other than gaining familiarity with list. It necessary for observers who do not have sufficient experience system guide an appropriate class when field. A has been produced based on defined habitat categories that can recorded consistently field order restrict range options any given patch. Expert judgement may still needed finalise allocation specific class. direct possible because list meetings national experts final often requires scientific judgement. rule designed aid identification classes promote consistent interpretation between Member States. intended due course descriptions will further developed from data sources consultation local experts. The first stage record according series rules. In second structure provided landscape units or complexes. third used provide using moisture acidity levels as primary filter. All characterised summary data, including species geographical distribution. tested throughout Europe available computers under Windows Mobile enable ready access encourage consistency.