scholarly journals Epiphytic lichen diversity along elevational gradients: biological traits reveal a complex response to water and energy

2015 ◽  
Vol 42 (7) ◽  
pp. 1222-1232 ◽  
Author(s):  
Juri Nascimbene ◽  
Lorenzo Marini
Keyword(s):  
Biological Traits ◽  
Elevational Gradients ◽  
Epiphytic Lichen ◽  
Complex Response ◽  
Lichen Diversity ◽  
Response To Water

Response of Evernia prunastri to urban environmental conditions in Central Europe after the decrease of air pollution

2013 ◽  
Vol 45 (1) ◽  
pp. 89-100 ◽  
Author(s):  
Anna LACKOVIČOVÁ ◽  
Anna GUTTOVÁ ◽  
Martin BAČKOR ◽  
Peter PIŠÚT ◽  
Ivan PIŠÚT
Keyword(s):  
Air Pollution ◽  
Central Europe ◽  
Photosynthetic Pigments ◽  
Urban Environments ◽  
Physiological Status ◽  
Epiphytic Lichens ◽  
Evernia Prunastri ◽  
Epiphytic Lichen ◽  
Lichen Diversity ◽  
Positive Correlations

AbstractThe epiphytic lichen Evernia prunastri is sensitive to air pollution and reacted by total retreat to the worsening of air quality during the peak of SO2 pollution in Central Europe (1950s–1990). Since 1990, after a significant decrease in air pollution, epiphytic lichens recolonized previously polluted areas, including E. prunastri. We investigated the physiological status of E. prunastri, transplanted for six months in 34 sites in the urban area of Bratislava (Slovakia) under current conditions. The content of chlorophylls, cortical and medullar secondary metabolites and soluble proteins were explored. We then examined the relationship of these parameters with the environmental quality status, reflected by the diversity of epiphytic lichens. The results showed that the physiological status of E. prunastri did not change significantly after exposure. Positive correlations were found between lichen diversity in the sampling sites and physiological parameters (photosynthetic pigments and phaeophytinization quotient) in the transplants. Transplants from sampling sites with a greater proportion of nitrophilous lichens displayed a decrease in photosynthetic pigments. Sites where E. prunastri naturally occurred had a lower proportion of nitrophilous species in comparison to sites where E. prunastri was not present. This suggests that the indicator species E. prunastri may also recolonize sites with low eutrophication in urban environments under decreased air pollution, and the information on its presence can help to assess the pressure caused by nitrogen excess.

scholarly journals Topographic and forest-stand variables determining epiphytic lichen diversity in the primeval beech forest in the Ukrainian Carpathians

2014 ◽  
Vol 23 (6) ◽  
pp. 1367-1394 ◽  
Author(s):  
Lyudmyla Dymytrova ◽  
Olga Nadyeina ◽  
Martina L. Hobi ◽  
Christoph Scheidegger
Keyword(s):  
Beech Forest ◽  
Forest Stand ◽  
Epiphytic Lichen ◽  
Lichen Diversity

The significance of stemflow chemistry for epiphytic lichen diversity in a dieback-affected spruce forest on Mt Brocken, northern Germany

2002 ◽  
Vol 34 (5) ◽  
pp. 415-427 ◽  
Author(s):  
Markus Hauck ◽  
Volker Hesse ◽  
Michael Runge
Keyword(s):  
Northern Germany ◽  
Epiphytic Lichen ◽  
Forest Dieback ◽  
Lichen Diversity ◽  
Sample Tree ◽  
Dead Trees ◽  
Minor Influence ◽  
Bark Chemistry ◽  
A Minor ◽  
Needle Loss

AbstractEpiphytic lichen diversity in a boggy stand of Norway spruce (Picea abies) was studied in the eastern Harz Mountains, northern Germany. Spruce trees at wet sites were affected by forest dieback, whereas trees on drier sites remained unaffected. Lichen diversity was higher on diebackaffected trees than on healthy ones. The foliose lichen Hypogymnia physodes was significantly more frequent on dead trees, whereas the crustose, extremely toxitolerant Lecanora conizaeoides occurred more frequently on healthy trees. Stemflow concentrations of NH⊂4⊃+, NO⊂3⊃-, PO⊂3⊃-, and SO⊂4⊃2- were lower on affected trees. This is attributed to reduced interception from the atmosphere due to needle loss. Cover of H. physodes decreased with increasing mean SO⊂4⊃2- concentration in stemflow. The total of lichen species per sample tree also decreased with increasing SO⊂4⊃2- concentration in stemflow, indicating that most species reacted in a similar way as H. physodes. Cover of L. conizaeoides increased with increasing SO⊂4⊂2- concentration, but decreased at higher SO⊂4⊃2- concentrations. Bark chemistry had a minor influence on lichen diversity.

EPIPHYTIC LICHEN DIVERSITY IN CHESTNUT WOODS

2010 ◽  
pp. 65-72 ◽  
Author(s):  
E. Matteucci ◽  
D. Isocrono ◽  
R. Piervittori
Keyword(s):  
Epiphytic Lichen ◽  
Lichen Diversity
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