The reponse of lichen growth to transplantation to rock surfaces of different aspect

Richard A. Armstrong

Research output: Contribution to journalArticle

Abstract

Thalli of four saxicolous lichens on slate rock fragments were transplanted from rock surafces to horizontal boards and then to south-east-facing and north-west-facing rock surfaces. The radial growth rate of Physcia orbicularis and Parmelia conspersa thalli declined after transplatation to north-west-facing rock surfaces and was unchanged after transplantation to south-east-facing rock surfaces cmpared with growth rates on the boards. The radial growth rate of P. glabratula ssp. fuliginosa thalli declined after transplantation to south-east-facing rock surfaces and was unchanged after transplantation to north-west-facing rock surfaces compared with grwoth rate on the boards. The radial growth rate of P. saxatilis thalli was similar on the horizontal boards, south-east-facing and north-west-facing rock surfaces. These results are dsicussed in relation to the aspect distribution of the four lichens in South Gwynedd, Wales.
Original languageEnglish
Pages (from-to)473-478
Number of pages6
JournalNew Phytologist
Volume78
Issue number2
DOIs
Publication statusPublished - Mar 1977

Keywords

  • thalli
  • lichen
  • radial growth rate
  • Physcia orbicularis
  • Parmelia conspersa
  • Parmelia glabratula ssp. fuliginosa
  • Parmelia saxatilis

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