Wood-inhabiting bryophyte communities are influenced by different management intensities in the past

Táborská, Markéta; Procházková, Jana; Lengyel, Attila; Vrška, Tomáš; Hort, Libor; Odór, Péter

doi:10.1007/s10531-017-1395-8

Cited by 6 publications

(4 citation statements)

References 58 publications

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“…), and their stages of decay [74–79]. In managed forests there is a shortage of appropriate substrates [13,74,75]. However, any amount of CWD, even if limited, is still valuable to the biodiversity of a forest [80].…”

Section: Discussionmentioning

confidence: 99%

Species diversity patterns in managed Scots pine stands in ancient forest sites

et al. 2019

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Continuity in forest habitats is crucial for species diversity and richness. Ancient Scots pine forests are usually under forest management, which disturbs vegetation and causes differentiation in terms of tree stand age. To date, vegetation variability in ancient Scots pine forests has not been examined based on tree stand age classes. In the present study the continuity of a large Scots pine forest complex was investigated, and a system of sampling plots established in five tree stand age classes: initiation stands (4–10 years), young stands (20–35 years), middle-aged stands (45–60 years), pre-mature stands (70–85 years) and mature stands (95–110 years). Species composition, including vascular plants, bryophytes and lichens, on soil, tree trunks, and coarse woody debris, was analyzed. Based on existing classifications systems, forest species and ancient forest species groups were distinguished. In the studied ancient Scots pine forests the species pool and richness were relatively low, and the vegetation consisted mostly of generalist species. Cryptogams, which can grow on diverse substrates, were the most abundant species. Moreover, most species could tolerate both forest and non-forest conditions. Age class forests provided different environmental niches for species. Initiation stands were optimal for terrestrial light-demanding species, and in terms of species composition, initiation stands were most specific. Young stands were most preferred by species on coarse woody debris, and at this stage of stand maturation epiphytic species re-appeared. The oldest stands were not rich in forest specialists, i.e. species of closed forest and ancient forest species. Cryptogams of closed forests inhabited different substrates, and they were not associated only with the oldest stands. The low number of forest specialists in the oldest stands may be a general feature of acidophilus pine forests. However, it may also be a result of the lack of species sources in the vicinity of maturing pine stands. In managed forests a frequent diversity pattern is an increase in a species pool and richness after clear-cut logging. In the present study we obtained higher species pools in initiation and young stands, but richness was similar in all tree stand age classes. This resulted from taking into account species of different substrates (terrestrial, epixylous and epiphytic species) which changed their participation in the vegetation of subsequent stages of tree stand development.

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Section: Discussionmentioning

confidence: 99%

Species diversity patterns in managed Scots pine stands in ancient forest sites

et al. 2019

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“…Other substrate attributes influencing epixylic species richness and community composition include the dead wood size (Heilmann-Clausen et al, 2014), position, or height above the ground (Botting and DeLong, 2009), accumulation of litter or humus on the log surface (Jansova and Soldan, 2006), as well as decay stage and CWD age, or time since tree death (Caruso and Rudolphi, 2009;Brumelis et al, 2017). Substrate-level factors were shown to be more important than ecosystem-level factors for epixylic species richness (Mills and Macdonald, 2004;Táborská et al, 2017) but not for community composition (Táborská et al, 2017;Kushnevskaya and Shorohova, 2018). The inconclusive results concerning the effects of different substrate attributes on the epixylic communities, e.g., the results on the effects of CWD size (Preikša, Brazaitis, Marozas, and Jaroszewicz, 2016;Kushnevskaya and Shorohova, 2018) and species (Heilmann-Clausen, Aude, and Christensen, 2005;Goia and Gafta, 2018) on epixylic species richness can be explained by the interrelationship between factors of different levels.…”

Section: Introductionmentioning

confidence: 96%

“…In Europe, evidence about epixylic communities has been acquired mainly in intensively managed or semi-natural / natural forests situated as small islands within managed landscapes (Söderström, 1988a,b;Lõhmus, Lõhmus, and Vellak, 2007), and provides limited knowledge on substrate preferences of rare epixylic species and their role in wood-inhabiting communities. Epixylic communities in old-growth forests with the lack of special connectivity (Lõhmus, Lõhmus, and Vellak, 2007) and continuity, i.e., with past management, are impoverished in terms of both species richness and composition (Táborská et al, 2017). In boreal forests, several studies have revealed substrate specific and dynamic patterns of epixylic vegetation in North America in the unmanaged forests with high availability and continuity of CWD of different species and good landscape-level connectivity (Crites and Dale, 1998;Mills and Macdonald, 2004;Boudreault et al, 2018;Kumar, Chen, Thomas, and Shahi, 2018).…”

Section: Introductionmentioning

confidence: 99%

Epixylic diversity in an old-growth boreal forest is influenced by dynamic substrate attributes

Kushnevskaya

Borovichev

Shorohova

2022

BioComm

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Quantifying the factors influencing wood-inhabiting species in boreal forests is crucial for better understanding of their ecology and conservation needs. We estimated the influence of substrate attributes on epixylic diversity on logs of Picea abies, Betula pubescens, B. pendula, Populus tremula and Pinus sylvestris in a mixed European old-growth boreal forest with high substrate availability and continuity. The number of species of different taxonomic and substrate groups in respect of log attributes was estimated with generalized linear models. The composition of epixylic communities was analysed using non-metric multidimensional scaling with subsequent environmental fitting. Additionally, we calculated species interaction networks of log (tree) species and epixylic plants and lichens. Species richness per log decreased with the increasing height above the ground and increased with the increasing amount of accumulated litter. True epixylics were the most sensitive to a log position above the ground. Aspen and conifer logs harbored the highest richness of rare species of lichens and liverworts. Birch logs hosted mainly species with wide substrate amplitude. The whole epixylic community specialization index decreased in the order lichens, liverworts, mosses, vascular plants. Tree species identity and associated attributes (bark cover, pH etc.) as well as ‘dynamic’ attributes (accumulation of litter, wood decomposition and time since tree death) influenced the total species number, their taxonomic diversity, and the composition of epixylic communities. Our results indicate the importance of wood of various age and tree species for the conservation of epixylic diversity in boreal forests.

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“…Continuity, land‐use history and naturalness of the forest stands considerably determine the local species pool of bryophyte assemblages (Ódor et al, 2006). Many recent studies have focused on comparisons of natural and managed forest stands, and have found that species richness and the quality of the community both increase with decreasing human influence, not only in the present but also in the past (Söderström, 1988; Ódor and Standovár, 2001; Brunet et al, 2010; Hofmeister et al, 2015b; Táborská et al, 2017). In particular, rare and endangered species are dependent on the continuous presence of sufficient amounts and quality of dead wood, which is very often completely missing in managed forests.…”

Section: Introductionmentioning

confidence: 99%

The relationship between epixylic bryophyte communities and microclimate

Táborská

Kovács

Németh

et al. 2020

J Vegetation Science

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Aim Dead wood‐inhabiting bryophyte communities are formed by several important factors. Besides the amount, quality and continuity of the substrate, there are also external factors indirectly influencing their structure. One of the most important is local microclimate. This fact has been recognized by many previous authors, yet studies exploring the direct effect of the microclimate on epixylic bryophytes are still sparse. Based on directly measured values of local temperature, air humidity and canopy openness (CO), we explored the associations between microclimate and epixylic bryophyte communities. Location Old‐growth mixed Fagus sylvatica‐Abies alba montane forest in the Czech Republic (West Carpathians). Methods The associations between microclimate and bryophyte communities were studied on 61 large logs of Abies alba in advanced decay stage. Air temperature and humidity were measured in three periods of the year 2017, CO was measured in leafless and leaf‐on periods. Water potential (Ψ) values were calculated from the data. The importance of the seasons was compared, the effect of microclimate variables on the species composition of logs was explored by canonical correspondence analysis. The effect on total cover and species richness was analyzed by linear models. Results Our analysis revealed a clear relationship between the communities and the microclimatic gradient. The most important factors for bryophyte composition were the spring and summer water potential and CO in the leaf‐on period. Total species richness and cover increased with increasing water potential (relatively cool and humid conditions). Also, the appearance of sensitive epixylic specialists (mainly liverworts) was positively correlated with these microclimatic conditions. On the other hand, species more tolerant to desiccation preferred logs with a drier and warmer microclimate. Conclusions Comparing logs with similar physical properties but different microclimates, we confirmed that epixylic bryophyte communities are significantly associated to microclimatic conditions in natural temperate forest.

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Wood-inhabiting bryophyte communities are influenced by different management intensities in the past

Cited by 6 publications

References 58 publications

Species diversity patterns in managed Scots pine stands in ancient forest sites

Species diversity patterns in managed Scots pine stands in ancient forest sites

Epixylic diversity in an old-growth boreal forest is influenced by dynamic substrate attributes

The relationship between epixylic bryophyte communities and microclimate

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