Genetically-based trait variation within a foundation tree species influences a dominant bark lichen

L. J. Lamit, Matthew A Bowker, L. M. Holeski, R. Reese Næsborg, S. C. Wooley, M. Zinkgraf, R. L. Lindroth, Thomas G Whitham, Catherine A Gehring

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Lichens frequently exhibit preference for tree species, however, tree traits that influence preference also vary intraspecifically. We hypothesized that genetically-based trait variation within Populus angustifolia affects bark lichens. To test this hypothesis, we quantified the lichen Xanthomendoza galericulata, and factors that could influence its distribution, including photosynthetically active radiation, bark roughness, bark condensed tannins, bark nitrogen and bole circumference on replicated P. angustifolia genotypes in a common garden. Several key findings emerged: (1) Tree genotype explained one-third of the variation in X. galericulata cover (broad-sense heritability: H2=0.32); (2) Bark roughness, condensed tannins and bole circumference varied among tree genotypes (H2=0.25-0.35); (3) Structural equation modelling suggested that bark roughness is the genetically-based trait that positively influences X. galericulata, and that bark roughness is positively influenced by bole circumference. This is the first study to link genetically-based trait variation in a foundation tree species to variation in the cover of a dominant lichen.

Original languageEnglish (US)
Pages (from-to)103-109
Number of pages7
JournalFungal Ecology
Volume4
Issue number1
DOIs
StatePublished - Feb 2011

Fingerprint

lichen
bark
lichens
roughness
Populus angustifolia
tree trunk
genotype
tannin
proanthocyanidins
heritability
photosynthetically active radiation
gardens
garden
nitrogen
modeling
testing

Keywords

  • Heritability
  • Lichen
  • Phytochemistry
  • Populus angustifolia
  • Structural equation model
  • Xanthomendoza galericulata

ASJC Scopus subject areas

  • Plant Science
  • Ecology, Evolution, Behavior and Systematics
  • Ecological Modeling
  • Ecology

Cite this

Genetically-based trait variation within a foundation tree species influences a dominant bark lichen. / Lamit, L. J.; Bowker, Matthew A; Holeski, L. M.; Næsborg, R. Reese; Wooley, S. C.; Zinkgraf, M.; Lindroth, R. L.; Whitham, Thomas G; Gehring, Catherine A.

In: Fungal Ecology, Vol. 4, No. 1, 02.2011, p. 103-109.

Research output: Contribution to journalArticle

Lamit, L. J. ; Bowker, Matthew A ; Holeski, L. M. ; Næsborg, R. Reese ; Wooley, S. C. ; Zinkgraf, M. ; Lindroth, R. L. ; Whitham, Thomas G ; Gehring, Catherine A. / Genetically-based trait variation within a foundation tree species influences a dominant bark lichen. In: Fungal Ecology. 2011 ; Vol. 4, No. 1. pp. 103-109.
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