Influence of the environmental factors on the species composition of lichen Scots pine forests as a guide to maintain the community (Bory Tucholskie National Park, Poland)

Węgrzyn, Maria; Kołodziejczyk, Joanna; Fałowska, Patrycja; Wężyk, Piotr; Zięba-Kulawik, Karolina; Szostak, Marta; Turowska, Agnieszka; Grzesiak, Barbara; Wietrzyk-Pełka, Paulina

doi:10.1016/j.gecco.2020.e01017

Cited by 13 publications

(17 citation statements)

References 33 publications

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“…91T0) [38,39]. We conducted research in the area of Bory Tucholskie (N Poland), which is currently a large forest complex covering the post-glacial sandy areas of the sanders of the Brda and Wda rivers, where Scots pine forests are still present [40]. One of its aims, to which this paper is dedicated, was to determine the photosynthetic activity of selected species of lichens (Cladonia mitis Sandst and Cladonia uncialis (L.) Weber ex F.H.…”

Section: Introductionmentioning

confidence: 99%

“…They are heliophytes that prefer forest habitats with a low tree cover. This results in greater amounts of solar light and heat energy reaching the substrate, and, in turn, this lowers the humidity conditions of the air and substrate [40]. On the other hand, P. schreberi is characteristic for the fresh form of pine forest [35] and prefers more shaded and moister habitats [41].…”

Section: Introductionmentioning

confidence: 99%

“…As our study area in previous years was subjected to active protection activities in order to provide habitat conditions favorable for terricolous lichens' development, we assumed that present conditions are not optimal for mosses [35,40]. Existing findings indicate that the photosynthetic activity of both groups depends on water availability, which changes during the day [40]. To test this, we divided our samples into two groups: soaked and non-soaked (measured directly in field conditions).…”

Section: Introductionmentioning

confidence: 99%

“…Species might uptake water first from a morning dew [33,41]. During the day, air humidity gradually decreases; thus, we assume that the studied species present the highest photosynthetic activity in the morning [35,40]. Since the air temperatures differ from highest in summer, lower in autumn, and the lowest in spring [35,40], we expected them to affect the photosynthetic activity of lichens and mosses.…”

Section: Introductionmentioning

confidence: 99%

“…During the day, air humidity gradually decreases; thus, we assume that the studied species present the highest photosynthetic activity in the morning [35,40]. Since the air temperatures differ from highest in summer, lower in autumn, and the lowest in spring [35,40], we expected them to affect the photosynthetic activity of lichens and mosses. We set the following hypotheses: (1) the soaked thalli of selected lichens and mosses show higher photosynthetic activity compared to non-soaked thalli, (2) the photosynthetic activity of species differs between the seasons and is the highest in autumn, (3) the photosynthetic activity of lichens is higher than it is for mosses in all of the studied seasons, and (4) photosynthetic activity of all species is higher in the morning and afternoon than at noon.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal Changes in the Photosynthetic Activity of Terrestrial Lichens and Mosses in the Lichen Scots Pine Forest Habitat

et al. 2021

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Photosynthetic activity is one of the most important metabolic processes that can be quickly and easily studied in the field. It can be used for identifying the environmental factors affecting ecosystem balance, as any stressor influencing metabolic and physiological processes will have a measurable effect on photosynthesis. The aim of this study was to measure the photosynthetic activity of selected lichens and mosses and investigate its changes resulted from diurnal and seasonal variability. We studied two lichens (Cladonia mitis Sandst and Cladonia uncialis (L.) Weber ex F.H. Wigg.) and two mosses (Pleurozium schreberi (Willd. ex Brid.) Mitt. and Dicranum scoparium (L.) Hedw.). Samples were collected in the area of lichen Scots pine forest of the “Bory Tucholskie” National Park. Our study revealed that the photosynthetic activity of cryptogams depended on species, season, time of the day, and water availability. Cladonia species, which are the main component of lichen Scots pine forests, have higher photosynthetic activity than Pleurozium schreberi, which represents species of fresh coniferous forests. Photosynthetic activity increased from spring through summer and reached the highest values in autumn. It was also higher in soaked samples collected in the morning and afternoon compared to noon. Despite the water access, noon samples still showed the lowest activity. This can result from natural changes in humidity during the day to which cryptogams are well-adapted.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Seasonal Changes in the Photosynthetic Activity of Terrestrial Lichens and Mosses in the Lichen Scots Pine Forest Habitat

et al. 2021

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Comparability of multi‐temporal DTMs derived from different LiDAR platforms: Error sources and uncertainties in the application of geomorphic impact studies

Kamp

Krenn

Avian

et al. 2023

Earth Surf Processes Landf

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Multi‐temporal digital terrain models (DTMs) derived from airborne or uncrewed aerial vehicle (UAV)‐borne light detection and ranging (LiDAR) platforms are frequently used tools in geomorphic impact studies. Accurate estimation of mobilized sediments from multi‐temporal DTMs is indispensable for hazard assessment. To study volumetric changes in alpine environments it is crucial to identify and discuss different kind of error sources in multi‐temporal data. We subdivided errors into those caused by data acquisition, data processing, and spatial properties of the terrain. In terms of the quantification of surface changes, the propagation of errors can lead to high uncertainties. Three alpine catchments with different LiDAR point clouds of different origins (airborne laser scanning [ALS], UAV‐borne laser scanning [ULS]), varying point densities, accuracies and qualities were analysed, and used as basis for interpolating DTMs. The workflow was developed in the Schöttlbach area in Styria and later applied to further catchments in Austria. The main aim of the presented work is a comprehensive DTM uncertainty analysis specially designed for geomorphic impact studies, with a resulting uncertainty analysis serving as input for a change detection tool. Our findings reveal that geomorphic impact studies need the careful distinction between actual surface changes and different data uncertainties. ULS combines the benefits of terrestrial laser scanning with all the benefits of ALS. However, the use of ULS data does not necessarily improve the results of the analysis since the high level of detail is not always helpful in geomorphic impact studies. In order to make the different point clouds and DTMs comparable the quality of the ULS point cloud had to be reduced to fit the accuracy of the reference data (older ALS point clouds). Using a point cloud with a high point density with a regular planimetric point spacing and less data gaps, in the best case collected during leaf‐off conditions (e.g., cross‐flight strategy) turned out to be sufficient for our geomorphic research purposes.

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Dune Blowouts as Microbial Hotspots and the Changes of Overall Microbial Activity and Photosynthetic Biomass Along with Succession of Biological Soil Crusts

Chowaniec,

Styburski,

Kozioł

et al. 2023

Microb Ecol

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Biological soil crust (BSC) constitutes a consortium of cyanobacteria, algae, lichen, mosses, and heterotrophic microorganisms, forming a miniature ecosystem within the uppermost soil layer. The biomass of different organisms forming BSC and their activity changes along with succession. Previous studies focused primarily on BSC in hyper-arid/arid regions, whereas the ecophysiology of BSC in temperate climates is still not well recognized. In order to determine changes in overall microbial activity and photosynthetic biomass in BSC at different stages of the succession of inland sandy grasslands, we analyzed dehydrogenase activity and determined the content of photosynthetic pigments. We also compared these parameters between BSC developed on the dune ridges and aeolian blowouts in the initial stage of succession. Our study revealed a significant increase in both photosynthetic biomass and overall microbial activity in BSC as the succession of inland shifting sands progresses. We found that chl a concentration in BSC could be considered a useful quantitative indicator of both the presence of photoautotrophs and the degree of soil crust development in warm-summer humid continental climates. The photosynthetic biomass was closely related to increased microbial activity in BSC, which suggests that photoautotrophs constitute a major BSC component. Dune blowouts constitute environmental niches facilitating the development of BSC, compared to dune ridges. High biomass of microorganisms in the dune blowouts may be associated with a high amount of organic material and more favorable moisture conditions. We conclude that deflation fields are key places for keeping a mosaic of habitats in the area of shifting sands and can be a reservoir of microorganisms supporting further settlement of dune slopes by BSC.

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Influence of the environmental factors on the species composition of lichen Scots pine forests as a guide to maintain the community (Bory Tucholskie National Park, Poland)

Cited by 13 publications

References 33 publications

Seasonal Changes in the Photosynthetic Activity of Terrestrial Lichens and Mosses in the Lichen Scots Pine Forest Habitat

Seasonal Changes in the Photosynthetic Activity of Terrestrial Lichens and Mosses in the Lichen Scots Pine Forest Habitat

Comparability of multi‐temporal DTMs derived from different LiDAR platforms: Error sources and uncertainties in the application of geomorphic impact studies

Dune Blowouts as Microbial Hotspots and the Changes of Overall Microbial Activity and Photosynthetic Biomass Along with Succession of Biological Soil Crusts

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