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(Article of periodic en Anglais - 2010)

Document title

Lichenometry on Adelaide Island, Antarctic peninsula : size-frequency studies, growth rates and snowpatches

published at : Lichenometry in subpolar environments. Special issue

Authors(s) and Affiliation(s)

GOLLEDGE N.R. (1 2) ; EVEREST J.D. (1) ; BRADWELL T. (1) ; JOHNSON J.S. (3) ;
(1) British Geological Survey, Edinburgh, ROYAUME-UNI
(2) Antarctic Research Centre, Victoria Univ., Wellington, NOUVELLE-ZELANDE
(3) British Antarctic Survey, Cambridge, ROYAUME-UNI

Abstract

This paper presents new lichenometric population data from the Antarctic Peninsula (67°S), and describes a new approach to lichen growth-rate calibration in locations where dated surfaces are extremely rare. The AA. use historical aerial photography and field surveys to identify sites of former perennial snowpatches where lichen populations now exist. As an independent check on lichen mortality by snowkill, and the timing of snow patch disappearance, the AA. use a positive-degree day (PDD) approach based on monthly climate data from Rothera Research Station. results and discussion about wider applications

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. 111-124]

Bibliographic references : 52 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

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