Claim · model-written summary
S. globosus occurred more often on older trees and increased with stand age.
Sphaerophorus globosusVerbatim
e0“Ramalina thrausta and S. globosus occurred more frequently on older trees and increased in number with increasing stand age.”
Title
EPIPHYTIC LICHENS IN NORWEGIAN COASTAL SPRUCE FOREST: HISTORIC LOGGING AND PRESENT FOREST STRUCTURE
Jørund Rolstad; Ivar Gjerde; Ken Olaf Storaunet; et al. Ecological Applications 2001. doi:10.1890/1051-0761(2001)011[0421:elincs]2.0.co;2
Other claims from this paper (11)
- Association Epiphytic lichens were associated with brook ravines, especially F. ahlneri and P. crocata.
- Association Lichens were ten times more abundant in ravine bottoms than slopes and plateaus.
- Observation All studied lichen species used spruce as their main substrate.
- Observation L. pulmonaria, L. scrobiculata and Nephroma spp. preferred scattered deciduous trees.
- Association Ramalina thrausta occurred more often on older trees and increased with stand age.
- Association Lichen numbers tended to rise with tree density in ravine bottoms.
- Association Lichen numbers tended to decline with tree density on slopes and plateaus.
- Observation All surveyed locations had been selectively cut at least twice in 100 years.
- Observation Total harvested volume was 31–124% of current standing volume.
- Association Logging history variables did not explain a significant share of current lichen abundance after accounting for stand structure.
- Recommendation The authors suggest moderate selective cutting as an option for sustaining viable lichen assemblages.
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Tsuga heterophylla