Means for soil nutrient uptake in sedges with different ecological strategies

Веселкин, Д. В.; Конопленко, М. А.; Бетехтина, А. А.

doi:10.1134/s1067413614060149

Cited by 14 publications

(11 citation statements)

References 17 publications

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“…To date, there are no studies on the impact of mowing on mycorrhizal associations of plant species in fens to compare with. Our main result, showing a higher share of facultatively mycorrhizal species in mown plots, should be interpreted with caution because this category also includes taxa with uncertain (at best) mycorrhizal functionality (Akhmetzhanova et al., ; Hempel et al., ; Veselkin et al., ). Additionally, based solely on traits, one cannot tell if in given conditions facultatively mycorrhizal plants are actually mycorrhizal or not.…”

Section: Discussionmentioning

confidence: 83%

“…Information about mycorrhizal associations in vascular plants was obtained from the MycoFlor database (Hempel et al., ), and supplemented with data from Akhmetzhanova et al. () and Veselkin, Konoplenko, and Betekhtina (). All vascular plant species in our dataset were divided into three groups (Moora, ): obligatory mycorrhizal (MO, species always reported as forming mycorrhizal associations), never mycorrhizal (MN, species always reported as non‐mycorrhizal), and facultatively mycorrhizal (MF, species reported sometimes as mycorrhizal and sometimes as non‐mycorrhizal).…”

Section: Methodsmentioning

confidence: 99%

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To mow or not to mow? Plant functional traits help to understand management impact on rich fen vegetation

Kozub

Goldstein

Dembicz

et al. 2019

Applied Vegetation Science

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Questions:Fens are important conservation targets in temperate Europe. When hydrologically undisturbed, fens remain open for millennia. However, unaltered fens are scarce, and today their biodiversity largely depends on conservational mowing applied to prevent successional shifts. However, the effects on community structure and conservation values are uncertain, and management might not always be needed where it is a priori applied by managers. Thus, within the presented study, we ask the following questions: (a) How is the species and functional composition of fens influenced by mowing? (b) Does mowing increase the conservation value of fen ecosystems? Location: Lowland fens, northern Poland. Methods: The sample consisted of 27 pairs of mown and unmown plots, located within ten sites. Ordination methods were used to assess the influence of mowing on species composition. Functional traits related to competitiveness, flowering time, mycorrhizal associations and functional groups were used to characterize plant communities and species richness, and the number of specialist and red-listed species was used to evaluate conservation values. Differences between mown and unmown plots were assessed using linear mixed-effect models and the effect size approach. Results: Management of fens suppresses the growth of trees, shrubs and highly competitive herbaceous species and inhibits the encroachment of Sphagnum mosses. At the same time, it enhances the establishment of species from other ecosystems (grasses, ruderal species, species of drier sites) within fens and alters the microtopography of the fen surface.Conclusions: Mowing can enhance species richness and the presence of rich fen specialists in transformed sites, but it can lead to fen ecosystem deterioration towards managed meadow communities within sites sustaining many typical fen species and functional characteristics. K E Y W O R D S functional traits, mowing, mycorrhiza, nature conservation, Poland, red-list species, rich fen, species richness, Sphagnum 28 | Applied Vegetation Science KOZUB et al.

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Section: Discussionmentioning

confidence: 83%

Section: Methodsmentioning

confidence: 99%

To mow or not to mow? Plant functional traits help to understand management impact on rich fen vegetation

Kozub

Goldstein

Dembicz

et al. 2019

Applied Vegetation Science

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“…A few values missing in the databases were extracted either from Elven (2005) or obtained from measurements in the field based on the authors' own observations. Information on mycorrhizal associations (in vascular plants only) was obtained from the MycoFlor database (Hempel et al, 2013), cross-checked with data from Akhmetzhanova et al (2012), and supplemented with data from Veselkin, Konoplenko, and Betekhtina (2014) for Carex spp. Main types of mycorrhizal associations (obligatory OM, ectomycorrhizal EcM, ericoid ErM, arbuscular AM) were defined according to Hempel et al (2013) and Moora (2014).…”

Section: Discussionmentioning

confidence: 99%

“…Information on mycorrhizal associations (in vascular plants only) was obtained from the MycoFlor database (Hempel et al., ), cross‐checked with data from Akhmetzhanova et al. (), and supplemented with data from Veselkin, Konoplenko, and Betekhtina () for Carex spp. Main types of mycorrhizal associations (obligatory OM, ectomycorrhizal EcM, ericoid ErM, arbuscular AM) were defined according to Hempel et al.…”

Section: Methodsmentioning

confidence: 99%

Long‐term effects of nutrient enrichment controlling plant species and functional composition in a boreal rich fen

Øien

Pedersen

Kozub

et al. 2018

J Vegetation Science

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Questions How does long‐term increase in nutrient availability affect species composition, species diversity and functional composition in boreal rich fens, and how does this differ from short‐term effects? What are the possible mechanisms behind the observed changes, and how does nutrient limitation influence species diversity in these communities? Location Sølendet Nature Reserve, central Norway. Methods A full‐factorial field experiment. Plots in two localities received one of following treatments (n = 3): no nutrient addition (control), N, P, K, NP, NK, PK and NPK addition. Cover of plant species was recorded before treatment, and after two and 15 years of treatment. Results Two years of nutrient addition caused small changes in species composition, but addition of NP led to large increase in abundance of species with high ability to exploit the added nutrients—a direct result of the elimination of nutrient limitation in the communities. After 15 years of nutrient addition there were significant changes following three different pathways, one for each of N, P and NP addition. The addition of NP led to large community shifts, considerable species turnover and reduced species and functional richness, mainly caused by increase in cover of highly competitive and tussock‐forming grasses like Deschampsia cespitosa, Festuca ovina and Molinia caerulea, out‐competing other species, especially bryophytes. Addition of N led to smaller changes in species turnover, and without clear dominant species. Addition of P led to considerable species turnover, but no reduction in species or functional richness, and the bryophyte diversity increased. This is explained by the bryophytes’ association with N‐fixing cyanobacteria, suggesting less N limitation and a greater ability to utilize the added P when vascular plants suffer from N shortage. In addition, bryophytes are more sensitive to low P availability, due to larger P requirements compared to vascular plants. There was no effect of K addition. Conclusions Both N and P limitation is essential for the maintenance of high species diversity in boreal rich fens, and P limitation controls bryophyte diversity. From a management perspective, N and P limitation is vital in the conservation of boreal rich fens or when a functional fen system is reestablished through restoration measures.

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“…Ecological requirements for particular species [Veselkin et al 2014], as well as the processes taking place in the rhizosphere of the plants [ Stoltz and Greger 2002] had a significant impact on the process of uptake and accumulation of nutritional components by Carex. The main factor governing the availabil ity of chemical elements for plants is the reaction of soils.…”

Section: Microelements Contents In Shoots Of Carexmentioning

confidence: 99%

Comparing Carex Species of Mid-Forest Spring Ecosystems in Terms of Ability to Accumulate Macro- And Microelements

Parzych¹,

Sobisz²,

Jończak³

2017

J. Ecol. Eng.

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The aim of the research was to compare the accumulative macro-and microelements in the shoots of Carex acutiformis, Carex echinata, Carex paniculata, Carex remota and Carex rostrata. The content of components in the shoots of the plants was analyzed in relation the chemical composition of the soil. The research was done within the area of four mid-forest spring niches situated in the valley of a tributary of the Słupia River located within the area of Leśny Dwór Forest Inspectorate (Northern Poland). The examined species of Carex, in comparison to other plants in spring niches, were characterized by an average capacity to accumulate both macro-and microelements, which results in little interest in these species when planning artificial buffer zones. Out of the analyzed species, the shoots of C. echinata accumulated the largest quantities of Mg, Zn and Mn, the shoots of C. paniculata -Fe, C. remota -K, Ni, Al and Sr, C. acutiformis -N and P, and the shoots of C. rostrata -Ca and Cu. Similarities between the species of Carex, which resulted from their accumulative properties, were discovered. C. echinata and C. rostrata were characterized by high levels of bioconcentration factors (BF) for Sr, Cu and Ca and low BF for K. C. paniculata and C. remota represented high BF levels for Ni and Mg and low BF levels for Sr, Al, Mn, Cu, Ca, Fe and N. On the other hand, C. acutiformis was characterized by high BF levels for P, K and Mn. In spite of an average accumulative capacity, the examined species of Carex were characterized by highly developed surface and underground zones which had effective impact on the retention of pollutants.

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Means for soil nutrient uptake in sedges with different ecological strategies

Cited by 14 publications

References 17 publications

To mow or not to mow? Plant functional traits help to understand management impact on rich fen vegetation

To mow or not to mow? Plant functional traits help to understand management impact on rich fen vegetation

Long‐term effects of nutrient enrichment controlling plant species and functional composition in a boreal rich fen

Comparing Carex Species of Mid-Forest Spring Ecosystems in Terms of Ability to Accumulate Macro- And Microelements

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