JJH Katalog - Lichenological literature

35361

Ndhlovu N.T., Minibayeva F., Smith F.R. & Beckett R.P. (2023): Lichen substances are more important for photoprotection in sun than shade collections of lichens from the same species - Bryologist, 126(2): 180–190

Photosynthetic organisms possess a great diversity of mechanisms to protect themselves from the potentially stressful effects of high PAR (photosynthetically active radiation). A distinctive response to longer term exposure to high levels of PAR in lichens is the synthesis of a variety of substances in the upper cortex that can protect photobionts from photoinhibition. In the present study, lichen substances were removed harmlessly from lichens using the ‘‘acetone rinsing’’ method. This … Read more...

35362

Koch N.M., Sacco A.G. & Muller S.C. (2015): Combined fire and grazing of surrounding grassland does not prevent saxicolous lichens growth - Plant Ecology and Evolution, 148(3): 311-317

Background and aims - The use of fire as a managing tool influences and maintains many types of vegetation and may determine landscape physiognomy and species composition. Fire has a strong effect on lichens but studies about their recolonization or resistance are rare. Considering this, the objectives of this study are to investigate how fire impacts the structure of saxicolous lichen communities on rocks in grassland, considering richness, cover and lichen taxa composition and to verify if there … Read more...

35363

Moore T.R. (1984): Litter Decomposition in a Subarctic Spruce-Lichen Woodland, Eastern Canada - Ecology, 65(1): 299-308

Abstract. The litter bag technique was used to examine the decomposition of six litter types (representing Picea mariana, Cladina stellaris, Betula glandulosa, and Ledum groenlandicum) and standard cellulose. The decomposition was measured over a 2-yr period, with tissue samples placed on a recently burnt site and on top of and beneath a lichen mat in a mature spruce-lichen woodland in northern Quebec. Mass losses after 2 yr were between 10and 60%, with the largest losses occurring in B. glandulosa … Read more...

35364

Boudreau S. & Payette S. (2004): Growth performance of Cladina stellaris following caribou disturbance in subarctic Quebec - Ecoscience, 11(3): 347-355

Cladina stellaris is a dominant lichen species of old-growth lichen-spruce woodlands in subarctic Quebec, where the continuous lichen carpet persists for several decades in the absence of disturbance. The lichen carpet is, however, vulnerable to caribou (Rangifer tarandus) disturbance under dry site conditions. Through grazing and trampling, large herds of migratory caribou reduce C. stellaris abundance and modify ground vegetation composition. Here, we have evaluated the age and growth performance … Read more...

35365

Rikkinen J. (1995): What's behind the pretty colours? A study on the photobiology of lichens - Bryobrothera, 4: 1–239

Lichens exhibit a broad spectrum of biological phenomena that are either directly or indirectly influenced by light. The aim of this study is to analyze and explain patterns in the photobiology of lichens, with special emphasis on lichen pigments and their photobiological functions. Here the primary purpose is to rationalize the role of light in explaining ecological and coevolutionary phenomena in lichen symbioses. This objective is pursued by investigating regularities in the light responses of … Read more...

35366

Firdous Q., de Souza M.F., Aptroot A. & Khalid A.N. (2023): Some Physciaceae lichens from Pakistan - Lindbergia, 46: linbg.01171 [8 p.]

This study aims to update the number of Phyciaceae lichens from Pakistan. Several new records have been added to the lichen flora of Pakistan, collected from different biomes. However, the lichen specimens for this study were collected from the country’s cold temperate and humid subtropical climate eco-zones. A taxonomic treatment, including a description based on the newly collected material, is provided along with molecular phylogenetic analysis. Physcia biziana, Physciella nepalensis and Physconia … Read more...

35367

Migoń P. & Waroszewski J. (2023): The Central European Variscan Ranges. – In: Oliva, M., Nývlt, D. & Fernández-Fernández, J. M. (eds.), Periglacial landscapes of Europe - Cham: Springer., pp. 225–251

The area named as the Central European Variscan ranges refers to the latitudinal belt of medium–high mountain terrains and intervening uplands that stretches between the River Rhine in the west and the Carpathians in the east (Fig. 1). Geologically, they are predominantly built of Proterozoic and Early Palaeozoic rocks of different origin and belonging to different terranes, which were later altered to form large metamor- phic complexes, amalgamated, and intruded by magmatic bodies of various size, … Read more...

35368

Rączkowska Z. (2023): The Carpathians. – In: Oliva, M., Nývlt, D. & Fernández-Fernández, J. M. (eds.), Periglacial landscapes of Europe - Cham: Springer, pp. 253–279

The Carpathian arc runs for a distance of 1500 km between latitudes 50°N and 44°N and longitudes 17° E and 27° E across the territory of seven countries (UNEP 2007). The area is divided into the Western Carpathians, Eastern Carpathians, Southern Carpathians and Western Romanian Carpathians (Fig. 1; Kondracki 1989). The highest elevations occur in the Tatras (Gerlachovský štít 2655 m a.s.l.) and the Fa ̆ga ̆ras ̧ (Moldoveanu 2544 m a.s.l.). The Carpathians are a segment of the Alpine system, … Read more...

35369

Sert E., Ugur A., Ozden B., Sac M. & Camgoz B. (2011): Biomonitoring of Po-210 and Pb-210 using lichens and mosses around coal-fired power plants in Western Turkey - Journal of Environmental Radioactivity, 102(6): 535-542

Mosses and lichens are useful biological indicators of environmental contamination for a variety of metals and radionuclides of both natural and artificial origin. These plants lack a well-developed root system and rely largely on atmospheric deposition for nourishment. Therefore in the study, different lichens (Cladonia convoluta, Cladonia foliacea) and mosses (Homalothecium sericeum, Hypnum lacunosum, Hypn urn cupressiforme, Tortella tortuosa, Didyinodon acutus, Syntrichia ruralis, Syntrichia intermedia, … Read more...

35370

Hornberg G., Josefsson T., DeLuca T., Higuera P., Liedgren L., Ostlund L. & Bergman I. (2018): Anthropogenic use of fire led to degraded scots pine-lichen forest in northern Sweden - Anthropocene, 24: 14-29

Northern pine-lichen forests are generally regarded as natural ecosystems that, in the past, were repeatedly affected by wild fires. This paper presents and tests a new hypothesis that reindeer herders used recurrent fires to promote and sustain reindeer lichen-dominated ground vegetation, in order to maintain good winter-grazing grounds in Scots pine forests. We investigated vegetation and fire history in three pine-lichen forests along the Lulealven River in northernmost Sweden. Methods included … Read more...