Species diversity and species composition of epiphytic bryophytes and lichens: a comparison of managed and unmanaged beech forests in NE Germany

Agnes Friedel; Goddert Oheimb; Jürgen Dengler; Werner Härdtle

doi:10.1002/fedr.200511084

Species diversity and species composition of epiphytic bryophytes and lichens: a comparison of managed and unmanaged beech forests in NE Germany

Titel in Übersetzung: Artenvielfalt und Artenzusammensetzung epiphytischer Moose und Flechten : ein Vergleich zwischen bewirtschafteten und unbewirtschafteten Buchenwäldern in Nordostdeutschland

Agnes Friedel^*
, Goddert Oheimb
, Jürgen Dengler^*
, Werner Härdtle

^*Korrespondierende/r Autor/-in für diese Arbeit

Institut für Ökologie

Leuphana Universität Lüneburg

Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung

90 Zitate (Scopus)

Abstract

Artenvielfalt und Artenzusammensetzung epiphytischer Moose und Flechten - ein Vergleich zwischen bewirtschafteten und unbewirtschafteten Buchenwäldern in Nordostdeutschland. Der Einfluss der Bewirtschaftung auf die Artenvielfalt und Artenzusammensetzung epiphytischer Moose und Flechten in Buchenwäldern Nordostdeutschlands wurde analysiert. Die Untersuchungen erfolgten in einem unbewirtschafteten und einem benachbarten, bewirtschafteten Waldgebiet in jeweils 45 Untersuchungsflächen ä 400 m2. In den Untersuchungsflächen wurden die Stetigkeit der Epiphyten an jeweils zwei bis vier zufällig ausgewählten Trägerbäumen (100 Bäume je Waldtyp) sowie sieben Umweltvariablen aufgenommen. Im Naturwald waren die Gesamtartenzahl sowie die mittlere Artendichte der Flechten bezogen auf die Mantelfläche höher als im Wirtschaftswald ...

Titel in Übersetzung	Artenvielfalt und Artenzusammensetzung epiphytischer Moose und Flechten : ein Vergleich zwischen bewirtschafteten und unbewirtschafteten Buchenwäldern in Nordostdeutschland
Originalsprache	Englisch
Zeitschrift	Feddes Repertorium
Jahrgang	117
Ausgabenummer	1/2
Seiten (von - bis)	172-185
Seitenumfang	14
ISSN	0014-8962
DOIs	https://doi.org/10.1002/fedr.200511084
Publikationsstatus	Erschienen - 01.05.2006

Fachgebiete und Schlagwörter

Biologie
Ökosystemforschung

ASJC Scopus Sachgebiete

Ökologie, Evolution, Verhaltenswissenschaften und Systematik
Pflanzenkunde

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10.1002/fedr.200511084

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@article{58a7438cbcc74b73a104a0934a58811d,

title = "Species diversity and species composition of epiphytic bryophytes and lichens: a comparison of managed and unmanaged beech forests in NE Germany",

abstract = "The impact of forest management on the species diversity and species composition of epiphytic bryophytes and lichens in beech forests (Fagus sylvatica) of NE Germany was analysed. The investigations were carried out in one unmanaged and in one managed forest, with 45 sample plots of 400 m 2 each. In the sample plots, the presence of the epiphytes on 2-4 randomly chosen trees (100 trees per forest) and seven environmental variables were recorded. The total number of species and the mean lichen density per mantle area was higher in the unmanaged forest than in the managed forest. Regression analyses and DCA revealed the diameter at breast height (dbh) as the most important factor affecting the species diversity and species composition in both forest types. The dbh was positively correlated with the number of growth anomalies and with the bark roughness of the phorophytes and thus a good indicator for the habitat quality. Moreover, the light conditions had a significant impact on the species composition in both forests types and on the species diversity in the managed forest. In particular, epiphytes demanding shady conditions and a consistent humidity may suffer from the abrupt exposition to radiation and the lower humidity after logging. Species typical for the unmanaged forest and most rare species must be considered as stenoecious as they demand the shady and humid conditions of the forest interior and grow on old, large trees. With the aim of sustaining the diversity of epiphytic bryophytes and lichens, forest management should ensure the continuous occurrence of big trees above the target diameter. In addition, a single tree selection felling method should be applied to minimise strong changes in the microclimate.",

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author = "Agnes Friedel and Goddert Oheimb and J{\"u}rgen Dengler and Werner H{\"a}rdtle",

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T2 - a comparison of managed and unmanaged beech forests in NE Germany

AU - Friedel, Agnes

AU - Oheimb, Goddert

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AU - Härdtle, Werner

PY - 2006/5/1

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N2 - The impact of forest management on the species diversity and species composition of epiphytic bryophytes and lichens in beech forests (Fagus sylvatica) of NE Germany was analysed. The investigations were carried out in one unmanaged and in one managed forest, with 45 sample plots of 400 m 2 each. In the sample plots, the presence of the epiphytes on 2-4 randomly chosen trees (100 trees per forest) and seven environmental variables were recorded. The total number of species and the mean lichen density per mantle area was higher in the unmanaged forest than in the managed forest. Regression analyses and DCA revealed the diameter at breast height (dbh) as the most important factor affecting the species diversity and species composition in both forest types. The dbh was positively correlated with the number of growth anomalies and with the bark roughness of the phorophytes and thus a good indicator for the habitat quality. Moreover, the light conditions had a significant impact on the species composition in both forests types and on the species diversity in the managed forest. In particular, epiphytes demanding shady conditions and a consistent humidity may suffer from the abrupt exposition to radiation and the lower humidity after logging. Species typical for the unmanaged forest and most rare species must be considered as stenoecious as they demand the shady and humid conditions of the forest interior and grow on old, large trees. With the aim of sustaining the diversity of epiphytic bryophytes and lichens, forest management should ensure the continuous occurrence of big trees above the target diameter. In addition, a single tree selection felling method should be applied to minimise strong changes in the microclimate.

AB - The impact of forest management on the species diversity and species composition of epiphytic bryophytes and lichens in beech forests (Fagus sylvatica) of NE Germany was analysed. The investigations were carried out in one unmanaged and in one managed forest, with 45 sample plots of 400 m 2 each. In the sample plots, the presence of the epiphytes on 2-4 randomly chosen trees (100 trees per forest) and seven environmental variables were recorded. The total number of species and the mean lichen density per mantle area was higher in the unmanaged forest than in the managed forest. Regression analyses and DCA revealed the diameter at breast height (dbh) as the most important factor affecting the species diversity and species composition in both forest types. The dbh was positively correlated with the number of growth anomalies and with the bark roughness of the phorophytes and thus a good indicator for the habitat quality. Moreover, the light conditions had a significant impact on the species composition in both forests types and on the species diversity in the managed forest. In particular, epiphytes demanding shady conditions and a consistent humidity may suffer from the abrupt exposition to radiation and the lower humidity after logging. Species typical for the unmanaged forest and most rare species must be considered as stenoecious as they demand the shady and humid conditions of the forest interior and grow on old, large trees. With the aim of sustaining the diversity of epiphytic bryophytes and lichens, forest management should ensure the continuous occurrence of big trees above the target diameter. In addition, a single tree selection felling method should be applied to minimise strong changes in the microclimate.

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KW - Ecosystems Research

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Species diversity and species composition of epiphytic bryophytes and lichens: a comparison of managed and unmanaged beech forests in NE Germany

Abstract

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