Ancient forest species in tree stands of different age as indicators of the continuity of forest habitat (original) (raw)

Ancient forest species in tree stands of different age as indicators of the continuity of forest habitat. Many authors when evaluating fo-rests, distinguish separate class of forests, existing for a long time. For valuable forest assessment in whole Europe "ancient woodland" concept is widely applied, which is based on calculations in whole fl ora of indicator species abundance. There are separate lists of indicator species in different countries e.g. in Sweden, Germany, Belgium, Netherlands, Poland, Great Britain, though they are similar, connected with woodlands, whose habitat continuity dates back for 250 years and more. If the method is related to the concept initi-ated in Poland in the beginning of 20th century about attachment of species to separate phases of a tree stand development, for applying the method it should be taken into account how the indicator species behave in habitat of undisturbed conti-nuity in a tree stand of different age and how that affects thei...

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