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(Article of periodic en Anglais - 2010)

Document title

Lichen growth rates on glacier forelands in southern Norway : preliminary results from a 25-year monitoring programme

published at : Lichenometry in subpolar environments. Special issue

Authors(s) and Affiliation(s)

TRENBIRTH H.E. (1) ; MATTHEWS J.A. (1) ;
(1) Dep. of Geography, School of the Environment and Society, Univ., Swansea, ROYAUME-UNI

Abstract

A unique 25-year lichen growth monitoring programme involving 2,795 individuals of the Rhizocarpon subgenus at 47 sites on 18 glacier forlands in the Jotunheimen-Jostedalsbreen regions is reported. Relating to direct lichenometry, the AA. study : spatial and temporal variability in lichen growth rates; climatic effects on lichen growth rates; lichen growth models; and implications for lichenometric dating. Comparison with growth rates inferred from indirect lichenometry suggest that high measured growth rates could not have been maintained over the last few centuries by the largest lichens used in southern Norway for lichenometric dating. Several hypotheses, such as the effects of competition and climate change which might explain this paradox, are discussed

Source

Thematical fascicle

published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP

Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)

Millesime : 2010, vol. 92, no 1 [pp. 19-39]

Bibliographic references : 2 p.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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