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Species richness of lichen functional groups in relation to land use intensity

Published online by Cambridge University Press:  31 July 2006

Silvia STOFER
Affiliation:
Swiss Federal Research Institute WSL, Zürcherstr. 111, CH-8903 Birmensdorf, Switzerland
Ariel BERGAMINI
Affiliation:
Swiss Federal Research Institute WSL, Zürcherstr. 111, CH-8903 Birmensdorf, Switzerland
Gregorio ARAGÓN
Affiliation:
Área de Biodiversidad y Conservatión, ESCET, Universidad Rey Juan Carlos, c/Tulipán s.n., 28933 Móstoles (Madrid), Spain
Palmira CARVALHO
Affiliation:
Museu Nacional de História Natural, Jardim Botanico, Rua da Escola Politécnica, 58, 1250-102 Lisboa, Portugal
Brian J. COPPINS
Affiliation:
Royal Botanic Garden Edinburgh, Inverleith Row, Edinburgh, EH3 5LR, United Kingdom
Simon DAVEY
Affiliation:
Stable Flat, Downsland Court, 115 East End Lane, Ditchling, Hassocks, Sussex, BN6 8UR, United Kingdom or Dept. of Zoology, University College Dublin, Belfield, Dublin 4, Ireland
Michael DIETRICH
Affiliation:
I de Böde, CH-6010 Kriens, Switzerland
Edit FARKAS
Affiliation:
Institute of Ecology and Botany, Hungarian Academy of Sciences, H-2163 Vacratot, Hungary
Kati KÄRKKÄINEN
Affiliation:
Department of Ecology and Systematics, P.O. Box 65, 00014 University of Helsinki, Finland
Christine KELLER
Affiliation:
Swiss Federal Research Institute WSL, Zürcherstr. 111, CH-8903 Birmensdorf, Switzerland
László LÖKÖS
Affiliation:
Department of Botany, Hungarian Natural History Museum, H-1476 Budapest, Pf. 222, Hungary
Sampsa LOMMI
Affiliation:
The Finnish Forest Research Institute, Vantaa Research Centre, Vantaa Unit, PL 18, 01301 Vantaa, Finland
Cristina MÁGUAS
Affiliation:
FCUL, Centro de Ecologia e Biologia Vegetal, Depto. de Biologia Vegetal, Bloco 2C, Campo Grande, 1749-016, Lisboa, Portugal
Ruth MITCHELL
Affiliation:
Centre for Ecology and Hydrology (CEH), Banchory, Hill of Brathens, Banchory, Aberdeenshire, AB31 4BW, Scotland, United Kingdom
Pedro PINHO
Affiliation:
FCUL, Centro de Ecologia e Biologia Vegetal, Depto. de Biologia Vegetal, Bloco 2C, Campo Grande, 1749-016, Lisboa, Portugal
Víctor J. RICO
Affiliation:
Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense, E-28040 Madrid, Spain
Anne-Marie TRUSCOTT
Affiliation:
Centre for Ecology and Hydrology (CEH), Banchory, Hill of Brathens, Banchory, Aberdeenshire, AB31 4BW, Scotland, United Kingdom
Patricia A. WOLSELEY
Affiliation:
Department of Botany, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom
Allan WATT
Affiliation:
Centre for Ecology and Hydrology (CEH), Banchory, Hill of Brathens, Banchory, Aberdeenshire, AB31 4BW, Scotland, United Kingdom
Christoph SCHEIDEGGER
Affiliation:
Swiss Federal Research Institute WSL, Zürcherstr. 111, CH-8903 Birmensdorf, Switzerland

Abstract

Changing land use has a major impact on lichen diversity. This study attempts to identify patterns or trends of lichen functional groups along a land use gradient, ranging from natural forests to open agricultural landscape. In eight countries, covering six main European biogeographic regions, lichen vegetation was assessed according to a standardized scheme. Data on reproductive, vegetative and ecological traits was compiled and relative species richness for all classes of all traits calculated. Relationships between the land use gradient and relative species richness of trait classes were analysed. Open and intensively managed landscapes harbour more fertile species while sterile species are relatively more important in forests. This finding is also supported by analyses of different classes of dispersal propagules. The importance of species with the principal photobiont Trebouxia s.l. increases linearly with intensification of land use. A converse pattern is revealed by species with Trentepohlia. Concerning substratum specialization only generalists show an effect along the land use intensity gradient. Their relative species richness decreases from landscapes dominated by forests to open agricultural landscape. A considerable decline in the rare lichen species richness as a result of land intensification is predicted.

Type
Research Article
Copyright
© British Lichen Society 2006

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