Abstract
Beech bark lesions, (Cryptococcus fagisuga), the most common lichen and fungi epiphytes on beech (Fagus sylvatica) stems were studied at 48 sites in Scania, south Sweden. Different site variables and the influence of nitrogen deposition were investigated. The field vegetation and lichens were used as biological indicators by calculating indices for nutrition status, toxicity, pH, light and moisture. Two sets of lichen indices, from Hultengren and Ellenberg, respectively, were calculated. Beech bark lesions were found at 25 sites and were more frequent at more polluted sites with much C. fagisuga and Lecanora conizaeoides, and on largish trees. Algae cover and C. fagisuga were positively correlated. Both preferred sites with no direct light exposure, high nitrogen deposition and low pH. The two sets of lichen indices were fairly comparable for toxitolerance, light and pH. In this investigation, Lepraria incana was the most frequent of all epiphytes, often determining the value of the lichen indices.
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Claims 7
Claim · model-written summary
Beech bark lesions occurred at 25 sites.
Not reportedDirection
Verbatim
e0“Beech bark lesions were found at 25 sites”
Claim · model-written summary
Beech bark lesions were more frequent at polluted sites with much C. fagisuga and Lecanora conizaeoides and on largish trees.
- Taxon
- Beeche0
- Interactor
- C. fagisuga
Cryptococcus fagisugae0pest - Second interactor
- Lecanora conizaeoides
Straminella conizaeoidese0other - Outcome
- bark lesionse0
- Direction
- more frequente0
- Qualifier
- on largish treese0
- Setting
- more polluted sitese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Beech bark lesions were found at 25 sites and were more frequent at more polluted sites with much C. fagisuga and Lecanora conizaeoides, and on largish trees.”
Claim · model-written summary
Algae cover and C. fagisuga were positively correlated.
- Taxon
- Algaee0
- Interactor
- C. fagisugaCryptococcus fagisugae0other
- Outcome
- Algae covere0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Algae cover and C. fagisuga were positively correlated.”
Claim · model-written summary
Algae preferred sites without direct light exposure, with high nitrogen deposition and low pH.
- Taxon
- Algaee0
- Outcome
- preferred sitese0
- Setting
- sites with no direct light exposure, high nitrogen deposition and low pHe0
Not reportedDirection
Verbatim
e0“Algae cover and C. fagisuga were positively correlated. Both preferred sites with no direct light exposure, high nitrogen deposition and low pH.”
Claim · model-written summary
C. fagisuga preferred sites without direct light exposure, with high nitrogen deposition and low pH.
- Taxon
- C. fagisugaCryptococcus fagisugae0
- Outcome
- preferred sitese0
- Setting
- sites with no direct light exposure, high nitrogen deposition and low pHe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Algae cover and C. fagisuga were positively correlated. Both preferred sites with no direct light exposure, high nitrogen deposition and low pH.”
Claim · model-written summary
The two sets of lichen indices were fairly comparable for toxitolerance, light and pH.
Verbatim
e0“The two sets of lichen indices were fairly comparable for toxitolerance, light and pH.”
Claim · model-written summary
Lepraria incana was the most frequent epiphyte and often determined lichen index values.
- Taxon
- Lepraria incana
Lepraria incanae0 - Outcome
- most frequent of all epiphytese0
- Direction
- most frequente0
- Qualifier
- often determining the value of the lichen indicese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this investigation, Lepraria incana was the most frequent of all epiphytes, often determining the value of the lichen indices.”