Katalog - Lichenological literature

38021

Lewis K.J., Johnson C.J. & Karim M.D.N. (2019): Fire and lichen dynamics in the Taiga Shield of the Northwest Territories and implications for barren-ground caribou winter forage, Journal of Vegetation Science, 30(3): 448-460

Questions: Fire is the main disturbance agent in boreal forests and has profound effects on vegetation composition and structure, including terrestrial lichens that provide critical winter forage for barren-ground caribou. What is the influence of fire on forest structure and the distribution and species assemblage of forage lichens? What is the current or potential effect of climate change on forage lichen in the boreal forest?. Location: High Boreal, Low Subarctic, and High Subarctic ecoregions … Read more...

38020

Pelletier M., Allard M. & Levesque E. (2019): Ecosystem changes across a gradient of permafrost degradation in subarctic Québec (Tasiapik Valley, Nunavik, Canada), Arctic Science, 5(1): 1-26

Permafrost thaw, tundra shrubification, and changes in snow cover properties are documented impacts of climate warming, particularly in subarctic regions where discontinuous permafrost is disappearing. To obtain some insight into those changes, permafrost, active layer thickness, vegetation, snow cover, ground temperature, soil profiles, and carbon content were surveyed in an integrated approach in six field plots along a chronosequence of permafrost thaw on an ice-rich silty soil. Historical air … Read more...

38019

Navrátil T., Nováková T., Roll M., Shanley J.B., Kopáček J., Rohovec J., Kaňa J. & Cudlín P. (2019): Decreasing litterfall mercury deposition in central European coniferous forests and effects of bark beetle infestation, Science of the Total Environment, 682: 213-225

We evaluated a 14-year trend (2003–2017) in mercury (Hg) concentrations and fluxes in six litterfall categories (needles, bark, twigs, cones, lichen, and a mixture of unidentified fragments) at six research plots situated in two central European unmanaged mountain forest stands, dominated by mature Norway spruce. One of the stands (catchment of Plešné Lake, PL) was infested by bark beetle and all mature spruces died at three of four research plots during the study. One PL plot and two plots in … Read more...

38018

Roos R.E., van Zuijlen K., Birkemoe T., Klanderud K., Lang S.I., Bokhorst S., Wardle D.A. & Asplund J. (2019): Contrasting drivers of community-level trait variation for vascular plants, lichens and bryophytes across an elevational gradient, FUNCTIONAL ECOLOGY, 33(12): 2430-2446

Across environmental gradients, community-level functional traits of plants can change due to species turnover, intraspecific variation and their covariation. Studies on vascular plants suggest that species turnover is the main driver of trait variation across gradients, although intraspecific variation can also be important. However, there is limited knowledge about whether this holds for non-vascular primary producers such as lichens and bryophytes. We hypothesized that intraspecific variation … Read more...

38017

Ciafré C.M., Ladd D. & Braun A. (2020): Caloplaca cinnabarina – a new candidate for Missouri’s most colorful lichen, Missouriensis, 38: 23-28

The colorful crustose lichen Caloplaca cinnabarina is reported new to Missouri and Kentucky, with a discussion of its Midwestern distribution, historical problems surrounding the application of the name in North America, and several new reports for the Great Plains and Midwest. The species typically occurs on massive siliceous rock exposures and is characterized by striking orange-red areolate thalli with immersed apothecia. Read more...

38016

Reed S.C., Delgado-Baquerizo M. & Ferrenberg S. (2019): Biocrust science and global change, New Phytologist, 223(3): 1047-1051

biocrusts, biological soil crusts, bryophytes, climate, cyanobacteria, global environmental change, lichens, Virtual Issue Read more...

38015

Sichaem J., Nguyen H.-. & Duong T.-. (2019): Hopane-6α,16α,22-triol: A new hopane triterpenoid from the lichen Parmotrema sancti-angelii, Natural Product Communications, 14(6): 1-4

A new compound, namely hopane-6α,16α,22-triol (1), along with 8 known compounds 2 to 9, leucotylin (2), 16β-acetoxy-hopane-6α,22-diol (3), 6α-acetoxyhopane-16β,22-diol (4), zeorin (5), 6α-acetoxyhopane-22-ol (6), ergosterol peroxide (7), brassicasterol (8), and atranorin (9), was isolated from the lichen Parmotrema sancti-angelii. The structures of all the isolated compounds 1 to 9 were fully characterized using spectroscopic data, as well as comparison with the previous literature data. Moreover, … Read more...

38014

Gauslaa Y., Bartemucci P. & Solhaug K.A. (2019): Forest edge-induced damage of cephalo- and cyanolichens in northern temperate rainforests of British Columbia, Canadian Journal of Forest Research, 49(5): 434-439

Retention of trees after logging is a method of preserving epiphytic lichens; however, epiphytes’ responses to logging disturbance are insufficiently known. We aimed to characterize four viability measures — effective PSII yield (Φ PSII ; a proxy for photosynthesis), maximal photosystem II efficiency (F V /F M ; a proxy for photoinhibition), chlorophyll a content, and chlorophyll a/b ratio — and the functional parameter specific thallus mass (STM; a proxy for water storage) in sympatric populations … Read more...

38013

Kushnevskaya E.V., Borovichev E.A. & Shorokhova E.V. (2019): Dependence of epixyiic species on substrate in old-growth spruce forest in Krvach Nature Reserve, Russian Journal of Forest Science, 2019(3): 228-240

Substrate specialization of species in epixyiic communities was studied in old-growth blueberry spruce forests of middle taiga in Kivach Nature Reserve in 2015-2016. The substrate specialization of the species and the systematic groups was analyzed with normalized index of specialization based on occurrence. Tree species, age of dieback, level of decomposition of timber, diameter and height of dead trunks above surface, amount of litter on trunk, bark coverage, moisture content and pH of bark were … Read more...

38012

Miyazawa K., Ohmura Y. & Yamaoka Y. (2020): Aulaxina microphana (Graphidaceae, Lichenized Ascomycota), new to Japan, Journal of Japanese Botany, 95(3): 154-157

Aulaxina microphana (Vain.) R. Sant., a foliicolous lichen, is reported as new to Japan. It was found on a leaf of Arenga engleriBecc., an evergreen palm, at an elevation of 70 m on Iriomote-jima Island in the southwestern end of Japan, which has a subtropical oceanic climate. Read more...