Abundance of Epiphytic Lichens in Litterfall During 1967–1994

2000 ◽  
pp. 171-172 ◽  
Author(s):  
Jarmo Poikolainen ◽  
Mikko Kuusinen
Keyword(s):  
Epiphytic Lichens

scholarly journals Integrating dark diversity and functional traits to enhance nature conservation of epiphytic lichens: a case study from Northern Italy

2021 ◽  
Author(s):  
Diego Pires Ferraz Trindade ◽  
Meelis Pärtel ◽  
Carlos Pérez Carmona ◽  
Tiina Randlane ◽  
Juri Nascimbene
Keyword(s):  
Climate Change ◽  
Nature Conservation ◽  
Functional Traits ◽  
Growth Form ◽  
Northern Italy ◽  
Epiphytic Lichens ◽  
Mountain Areas ◽  
High Elevations ◽  
Harsh Conditions

AbstractMountains provide a timely opportunity to examine the potential effects of climate change on biodiversity. However, nature conservation in mountain areas have mostly focused on the observed part of biodiversity, not revealing the suitable but absent species—dark diversity. Dark diversity allows calculating the community completeness, indicating whether sites should be restored (low completeness) or conserved (high completeness). Functional traits can be added, showing what groups should be focused on. Here we assessed changes in taxonomic and functional observed and dark diversity of epiphytic lichens along elevational transects in Northern Italy spruce forests. Eight transects (900–1900 m) were selected, resulting in 48 plots and 240 trees, in which lichens were sampled using four quadrats per tree (10 × 50 cm). Dark diversity was estimated based on species co-occurrence (Beals index). We considered functional traits related to growth form, photobiont type and reproductive strategy. Linear and Dirichlet regressions were used to examine changes in taxonomic metrics and functional traits along gradient. Our results showed that all taxonomic metrics increased with elevation and functional traits of lichens differed between observed and dark diversity. At low elevations, due to low completeness and harsh conditions, both restoration and conservation activities are needed, focusing on crustose species. Towards high elevations, conservation is more important to prevent species pool losses, focusing on macrolichens, lichens with Trentepohlia and sexual reproduction. Finally, dark diversity and functional traits provide a novel tool to enhance nature conservation, indicating particular threatened groups, creating windows of opportunities to protect species from both local and regional extinctions.

Litter fall of epiphytic macrolichens in two old Picea abies forests in Sweden

1985 ◽  
Vol 63 (5) ◽  
pp. 980-987 ◽  
Author(s):  
Per-Anders Esseen
Keyword(s):  
Standing Crop ◽  
Annual Variation ◽  
Length Distribution ◽  
Forest Stand ◽  
Epiphytic Lichens ◽  
Litter Fall ◽  
Alectoria Sarmentosa ◽  
Usnea Longissima ◽  
Tree Litter ◽  
Thallus Length

The seasonal and annual variation in the litter fall of epiphytic lichens and tree litter was studied over a period of 2 to 3 years at two forested hills in the eastern part of central Sweden. Litter fall was measured using traps and for one species, Usnea longissima, by collecting specimens present on the ground. Total litter fall amounted to 2.5 and 2.8 tons ha−1 year−1 of which lichens constituted 4.6 and 5.7% at the two sites. Lichen litter fall was highest during the period from late autumn to the beginning of summer. Both the lichens and the tree litter showed significant between-year differences. Usnea longissima had an annual turnover of 7.0 and 10.0% of the standing crop at the two sites. The thallus length distribution of U. longissima was positively skewed. It is concluded that dispersal of thallus fragments by wind evidently plays an important role for many of the filamentous lichens studied. It is suggested that U. longissima disperses over a much shorter distance than Alectoria sarmentosa and Bryoria spp. within a forest stand.

Changes in the distributions of epiphytic lichens in southern Sweden using a new statistical method

2009 ◽  
Vol 27 (5) ◽  
pp. 413-418 ◽  
Author(s):  
Håkan Lättman ◽  
Per Milberg ◽  
Michael W. Palmer ◽  
Jan-Eric Mattsson
Keyword(s):  
Statistical Method ◽  
Epiphytic Lichens ◽  
Southern Sweden

Floristic Survey of Epiphytic Lichens and Bryophytes Growing on Old-Growth Conifers in Western Oregon

1975 ◽  
Vol 78 (4) ◽  
pp. 389 ◽  
Author(s):  
Lawrence H. Pike ◽  
William C. Denison ◽  
Diane M. Tracy ◽  
Martha A. Sherwood ◽  
Frederick M. Rhoades
Keyword(s):  
Epiphytic Lichens ◽  
Old Growth ◽  
Floristic Survey

Tracing sources of atmospheric sulphur using epiphytic lichens

1999 ◽  
Vol 106 (3) ◽  
pp. 265-271 ◽  
Author(s):  
M.A Wadleigh ◽  
D.M Blake
Keyword(s):  
Epiphytic Lichens

Similarities and differences in geochemical distribution patterns in epiphytic lichens and topsoils from kindergarten grounds in Vilnius

2017 ◽  
Vol 183 ◽  
pp. 152-165 ◽  
Author(s):  
Ričardas Taraškevičius ◽  
Jurga Motiejūnaitė ◽  
Rimantė Zinkutė ◽  
Agnė Eigminienė ◽  
Laura Gedminienė ◽  
...  
Keyword(s):  
Distribution Patterns ◽  
Epiphytic Lichens ◽  
Similarities And Differences

scholarly journals Epiphytic lichens as indicator of land-use pattern and forest harvesting in a community forest in west Nepal

2012 ◽  
Vol 8 ◽  
pp. 24-32 ◽  
Author(s):  
Pramod Nag ◽  
Himanshu Rai ◽  
Dalip Kumar Upreti ◽  
Sanjeeva Nayaka ◽  
Rajan Kumar Gupta
Keyword(s):  
Land Use ◽  
Forest Harvesting ◽  
Conservation Strategy ◽  
Stand Age ◽  
Epiphytic Lichens ◽  
Community Forest ◽  
Land Use Pattern ◽  
Community Based ◽  
Lichen Diversity ◽  
Use Pattern

Human inhabitance and agriculture have fundamentally altered global pattern of biodiversity and ecosystem processes. Therefore, integration of community-based approach is an effective conservation strategy. Community forestry is an important community-based approach, which can help in conserving local ecological assets in a sustainable manner. Lichens are known to be more sensitive indicators of ecosystem functions and disturbances than any other cryptogam and vascular plant community. Present study reports a preliminary assessment of epiphytic lichens in a community forest in Dadeldhura district, west Nepal, in order to identify potential indicator of forest health and land-use pattern. Epiphytic (corticolous) lichens were sampled from ten land-use units (LUU), using narrow frequency grids of 10 cm × 50 cm, each divided into five sampling units of 10 cm × 10 cm, on the bark of selected tree species. Quercus leucotrichophora was the dominant phorophyte followed by Pinus roxburghii, Rhododendron arboreum and Myrica esculenta. Foliose parmeloid (Parmotrema spp., Heterodermia spp., Hypotrachyna spp., Bulbothrix spp., Canoparmelia spp., Canomaculina spp.) was the most abundant lichen group, found inhabiting all the phorophytes followed by crustose, fruticose and dimorphic growth forms. Maximum diversity of parmeloid lichens was recorded on older stand of Quercus while younger stands usually harbored crustose lichens (e.g., Lecanora spp., Basidia spp.). Though the lichen diversity increased from outer fringes of the forest to the core, the vegetation stand age was not distributed in any consistent pattern suggesting unconstrained harvesting of the forest. Lichen diversity was found constrained by phorophyte determinants (stand age, aspect, and bark properties) and community harvesting of the forest.doi: http://dx.doi.org/10.3126/botor.v8i0.5555 Botanica Orientalis – Journal of Plant Science (2011) 8: 24-32

A retrospective study using epiphytic lichens as biomonitors of air quality: 1980 and 1996 (Tuscany, central Italy)

1998 ◽  
Vol 19 (4) ◽  
pp. 405-408 ◽  
Author(s):  
Stefano Loppi ◽  
Ettore Putortì ◽  
Chiara Signorini ◽  
Sara Fommei ◽  
Stergios A. Pirintsos ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Air Quality ◽  
Central Italy ◽  
Epiphytic Lichens
Sign in / Sign up

Export Citation Format

Share Document