Changes in distribution and substrate preferences of selected threatened lichens in the Czech Republic

Vondrák, Jan; Liška, Jiří

doi:10.2478/s11756-010-0061-3

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…A species that primarily inhabits only bark in some portions of its range may occasionally inhabit rock substrates in permissible microsites. The most common epiphyte in our study, the iconic Evernia mesomorpha , occurs most frequently throughout its circumboreal range on conifer bark and twigs but at its southernmost range limits it may switch to siliceous rocks confined to sheltered riparian sites (Vondrák & Liška 2010). Therefore, substrate specificity in part contributes to the geographical distributions and co-occurrences of lichen species.…”

Section: Discussionmentioning

confidence: 90%

Lack of congruence between terrestrial and epiphytic lichen strata in boreal forests

Smith

Jovan²,

Will‐Wolf³

2021

The Lichenologist

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Lichens occupy diverse substrates across tremendous ranges of environmental variation. In boreal forests, lichen communities co-occur in ‘strata’ defined by terrestrial or arboreal substrates, but these strata may or may not be interchangeable as bioindicators. Do co-occurring lichen strata have similar community structures and environmental responses? Could one stratum serve as a proxy for the other? We assessed variation in species richness and community compositions between ground-layer versus epiphyte-layer lichen strata in boreal forests and peatlands of interior Alaska. Species richness was lower and more spatially structured in the ground layer than the epiphyte layer. Richness of strata was not correlated. The most compositionally unique ground-layer communities were species-poor but contained regionally rare species not common in other plots. Variation in community compositions (ordination scores) were not congruent between strata (Procrustes congruence < 0.16 on 0–1 scale); the largest departures from congruence occurred where ground layers were species-poor. The best predictors of ground-layer community compositions were hydrological and topographic, whereas epiphytes were most associated with macroclimate and tree abundances. We conclude that lichens on different substrates ‘move in different circles’: compositional gradients did not agree and the environmental gradients most important to each lichen stratum were not the same. The conditions which strongly influence one vegetation stratum may have little bearing upon another. As global changes modify habitats, an incremental change in environment may lead community trajectories to diverge among lichen strata.

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Section: Discussionmentioning

confidence: 90%

Lack of congruence between terrestrial and epiphytic lichen strata in boreal forests

Smith

Jovan²,

Will‐Wolf³

2021

The Lichenologist

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“…The influence of pH on lichens is a traditionally studied phenomenon, and, indeed, the pH has been demonstrated repeatedly as one of the most important factors affecting the species composition of a lichen community, as well as the species distribution ( Brodo, 1973 ). For example, several studies focused on the effect of acid rain ( Gilbert, 1986 ), soil pH ( Zraik et al, 2018 ), rock types ( Easton, 1994 ), and type of bark ( Vondrák and Liška, 2010 ; Rosabal et al, 2013 ) on lichen diversity and ecology. pH affects the compounds and ions present in the environment, such as heavy metals, which may lead to lichen death by their toxic effects ( Goyal and Seaward, 1981 ; Purvis and Halls, 1996 ).…”

Section: Discussionmentioning

confidence: 99%

Promiscuity in Lichens Follows Clear Rules: Partner Switching in Cladonia Is Regulated by Climatic Factors and Soil Chemistry

et al. 2022

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Climatic factors, soil chemistry and geography are considered as major factors affecting lichen distribution and diversity. To determine how these factors limit or support the associations between the symbiotic partners, we revise the lichen symbiosis as a network of relationships here. More than one thousand thalli of terricolous Cladonia lichens were collected at sites with a wide range of soil chemical properties from seven biogeographical regions of Europe. A total of 18 OTUs of the algal genus Asterochloris and 181 OTUs of Cladonia mycobiont were identified. We displayed all realized pairwise mycobiont–photobiont relationships and performed modularity analysis. It revealed four virtually separated modules of cooperating OTUs. The modules differed in mean annual temperature, isothermality, precipitation, evapotranspiration, soil pH, nitrogen, and carbon contents. Photobiont switching was strictly limited to algae from one module, i.e., algae of similar ecological preferences, and only few mycobionts were able to cooperate with photobionts from different modules. Thus, Cladonia mycobionts generally cannot widen their ecological niches through photobiont switching. The modules also differed in the functional traits of the mycobionts, e.g., sexual reproduction rate, presence of soredia, and thallus type. These traits may represent adaptations to the environmental conditions that drive the differentiation of the modules. In conclusion, the promiscuity in Cladonia mycobionts is strictly limited by climatic factors and soil chemistry.

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“…Parmotrema perlatum jest w ostatnich latach coraz częściej notowana również w krajach ościennych, np. w Republice Czeskiej (Malíček, 2016;Šoun et al, 2017;Vondrák & Liška, 2010), Białorusi (Tsurykau et al, 2015), czy Niemczech (Rätzel et al, 2003), co może świadczyć o poszerzaniu zasiegu tego gatunku. Warto podkreślić, że na niektórych, przedstawionych tutaj stanowiskach P. perlatum rośnie w drzewostanach gospodarczych.…”

Section: Parmelia Submontanaunclassified

Materiały do rozmieszczenia porostów i grzybów naporostowych Polski, 2

Kossowska¹,

Krzewicka²,

Kościelniak³

et al. 2022

Wiad Bot

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Streszczenie W publikacji przedstawiono nowe stanowiska 39 gatunków porostów oraz 10 grzybów naporostowych (te ostatnie oznaczono gwiazdką), które są zagrożone w Polsce lub rzadkie w kraju lub regionie. Didymocyrtis epiphyscia s. l. jest podawany poraz pierwszy z obszaru Polski. W zamieszczonych wykazach stanowisk, obok współrzędnych geograficznych, podano kwadraty siatki ATPOL, zmodyfikowanej na potrzeby Atlasu rozmieszczenia geograficznego porostów w Polsce (wydawnictwo Instytutu Botaniki im. W. Szafera PAN, 1993) przez Cieślińskiego i Fałtynowicza. Poza wykazem stanowisk, przy każdym z gatunków zamieszczono dane na temat ich cech diagnostycznych oraz rozmieszczenia w Polsce.

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Changes in distribution and substrate preferences of selected threatened lichens in the Czech Republic

Cited by 9 publications

References 16 publications

Lack of congruence between terrestrial and epiphytic lichen strata in boreal forests

Lack of congruence between terrestrial and epiphytic lichen strata in boreal forests

Promiscuity in Lichens Follows Clear Rules: Partner Switching in Cladonia Is Regulated by Climatic Factors and Soil Chemistry

Materiały do rozmieszczenia porostów i grzybów naporostowych Polski, 2

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