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
Herzogia ◽  
2015 ◽  
Vol 28 (1) ◽  
pp. 104-126 ◽  
Author(s):  
Jan Vondrák ◽  
Jiří Malíček ◽  
Jaroslav Šoun ◽  
Václav Pouska

Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 27
Author(s):  
Giorgio Brunialti ◽  
Paolo Giordani ◽  
Sonia Ravera ◽  
Luisa Frati

(1) Research Highlights: The work studied the beta diversity patterns of epiphytic lichens as a function of their reproductive strategies in old-growth and non-old growth forests from the Mediterranean area. (2) Background and Objectives: The reproductive strategies of lichens can drive the dispersal and distribution of species assemblages in forest ecosystems. To further investigate this issue, we analyzed data on epiphytic lichen diversity collected from old-growth and non-old growth forest sites (36 plots) located in Cilento National Park (South Italy). Our working hypothesis was that the dispersal abilities due to the different reproductive strategies drove species beta diversity depending on forest age and continuity. We expected a high turnover for sexually reproducing species and high nestedness for vegetative ones. We also considered the relationship between forest continuity and beta diversity in terms of species rarity. (3) Materials and Methods: we used the Bray–Curtis index of dissimilarity to partition lichen diversity into two components of beta diversity for different subsets (type of forest, reproductive strategy, and species rarity). (4) Results: The two forest types shared most of the common species and did not show significant differences in alpha and gamma diversity. The turnover of specific abundance was the main component of beta diversity, and was significantly greater for sexually reproducing species as compared to vegetative ones. These latter species had also the least turnover and greater nestedness in old-growth forests. Rare species showed higher turnover than common ones. (5) Conclusions: Our results suggest that sexually reproducing lichen species always have high turnover, while vegetative species tend to form nested assemblages, especially in old-growth forests. The rarity level contributes to the species turnover in lichen communities. Contrary to what one might expect, the differences between old-growth and non-old growth forests are not strong.


2006 ◽  
Vol 36 (4) ◽  
pp. 809-818 ◽  
Author(s):  
Thomas G Pypker ◽  
Michael H Unsworth ◽  
Barbara J Bond

Old-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) forests frequently contain large populations of epiphytic lichens and bryophytes. To determine the effect these epiphytes have on canopy hydrology we measured the maximum water fraction (f(x)max; maximum mass of internal and external water stored by an epiphyte divided by its tissue dry mass) of common lichens, bryophytes, and dead branches in the laboratory and the water storage and interception efficiency (pi) (the rainfall stored on a branch divided by the rainfall intercepted by the branch) of whole epiphyte-laden branches under a rainfall simulator at three intensities (11.3, 16.1, and 39.8 mm·h–1). The f(x)max values for epiphytic fruticose lichens, foliose lichens, and bryophytes were 2.2 ± 0.4, 3.4 ± 0.6, and 10.0 ± 0.5, respectively. The water stored by an epiphyte-laden branch during and after exposure to simulated rainfall could be predicted if the biomass of epiphytic lichens and bryophytes on the branch was known (R2 = 0.8, p value < 0.0001). For all three rainfall intensities, the branches required >6 mm of rainfall to saturate. Values of pi averaged between 0.5 and 0.7 after 2 mm of rainfall and did not differ among the three intensities (all p values > 0.05). We conclude that epiphytes increase the canopy water storage of a typical old growth Douglas-fir forest by >1.3 mm.


2014 ◽  
Vol 91 ◽  
pp. 131-141
Author(s):  
Stanisław Cieśliński

The first regional list of threatened lichens and allied fungi is presented. The list is a result of investigation studies in the Kozienicka Old-growth Forest, in forests located between the Vistula and Radomka Rivers, in Central Poland. The status of threat to the lichen and allied fungi species listed has been determined according to the Red List Categories by IUCN (2001, version 3.1). The data obtained were compared with historical ones. Changes of the species main frequency were used as an additional indicator of their threat status. The Red List includes 144 taxa of lichens, lichenicolous and saprobic fungi, which constitute 61.8% of the local biota and 9% of Polish biota. The status of threatened biota has the following categories: Regionally Extinct (RE) - 13 taxa, Critically Endangered (CR) - 26, Endangered (EN) - 31, Vulnerable (VU) - 23, NearThreatened (NT) -17, Least Concern (LC) -14 and Data Deficient (DD)-20. Epiphytic lichens of forest and roadside trees as well as forest epixylic arę the most threatened ones.


Herzogia ◽  
2017 ◽  
Vol 30 (1) ◽  
pp. 103-125 ◽  
Author(s):  
Aziz Ismailov ◽  
Gennadii Urbanavichus ◽  
Jan Vondrák ◽  
Václav Pouska

2019 ◽  
Vol 49 (5) ◽  
pp. 434-439 ◽  
Author(s):  
Yngvar Gauslaa ◽  
Paula Bartemucci ◽  
Knut Asbjørn Solhaug

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 (ΦPSII; a proxy for photosynthesis), maximal photosystem II efficiency (FV/FM; 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 of two old-growth lichens (Lobaria retigera (Bory) Trevisan and Lobaria oregana (Tuck.) Müll. Arg.) and the less old-growth dependent Lobaria pulmonaria (L.) Hoffm. along recently logged forest edge gradients within retained forest patches. All species experienced substantially reduced chlorophyll contents near edges, whereas ΦPSII was lower in the two old-growth lichens than in L. pulmonaria. STM, and thus lichen water storage, did not respond to logging, probably because chlorophyll degradation reduced the carbon gain required for necessary acclimation. Reported edge effects on lichen viability were so strong that most of the epiphytic lichens in the retained forest patches were affected. Measured viability variables improved linearly with distances up to ≈120 m from the edge. To avoid logging-induced adverse impacts on the threatened epiphytic lichens of these old-growth rainforests, there is a need to retain forest patches wider than 240 m.


2006 ◽  
Vol 173 (3) ◽  
pp. 621-629 ◽  
Author(s):  
Leena Myllys ◽  
Soili Stenroos ◽  
Arne Thell ◽  
Mikko Kuusinen

2013 ◽  
Vol 159 ◽  
pp. 458-467 ◽  
Author(s):  
Catherine Boudreault ◽  
Darwyn Coxson ◽  
Yves Bergeron ◽  
Susan Stevenson ◽  
Mathieu Bouchard

Author(s):  
E. A. Aristarkhova ◽  
E. G. Suslova

The article analyzes the ecology and distribution of species of genera: Bryoria Brodo et D. Hawksw., Ramalina Ach., Usnea Dill. ex Adans., found in Moscow region and listed in the red book of the region (2018). It is based onliterature materials and monitoring data that we conducted as part of the «Verkhovye» Nature protection Fund in 2010–2019.In the period from 1906 to 1995, a greater number of Ramalina species were cited for Moscow region than at present,some of the finds of Usnea species were made on the outskirts of Moscow and in the near Moscow region, meanwhile thedistribution of genus Bryoria was not studied. Currently, the most favorable conditions for the development of lichens areformed in the North, West and North-West of the Moscow region, where the largest number of finds of various specieswith maximum abundance is noted. In the South-east, their settlement is probably hindered by dust, increased dryness ofthe air and the presence of harmful compounds in the atmosphere. In their distribution, lichens prefer intact habitats withhigh humidity and minimal air pollution: large fragments of preserved protected old-growth forests (spruce and sprucesmall-leaved), swampy forests and forest swamps.For the most common species with a high abundance (Bryoria fuscescens (Gyeln.) Brodo et D. Hawksw. и B. capillaris (Ach.) Brodo et D. Hawksw., Usnea hirta (L.) Weber ex F. H. Wigg.и др.), it is possible to track the dynamics ofchanges in the environment. The rarest species are recommended to keep category 1–2 in the Red book of the Moscow region (Bryoria nadvornikiana (Gyeln.) Brodo et D. Hawksw., B. vrangiana (Gyeln.) Brodo et D. Hawksw., B. osteola(Gyeln.) Brodo et D. Hawksw., Usnea lapponica Vain. и др.).


Nova Hedwigia ◽  
2013 ◽  
Vol 96 (3) ◽  
pp. 367-381 ◽  
Author(s):  
Giorgio Brunialti ◽  
Sonia Ravera ◽  
Luisa Frati

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