Succession of Saline Vegetation in Slovakia after a Large-Scale Disturbance

Melečková, Zuzana; Dítě, Daniel; Eliáš, Pavol; Píš, Vladimír; Galvánek, Dobromil

doi:10.5735/085.051.0504

Cited by 10 publications

(6 citation statements)

References 47 publications

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“…In the case of TRI, the most vital populations were also found on ploughed plots, similar to ART. The species has good competition ability on disturbed saline soils although its dominance is only temporary as was also observed by Melečková et al [ 62 ]. The characteristic subordinated species typical in reference area Kiskunság were missing there.…”

Section: Resultssupporting

confidence: 69%

“…Natural habitats of halophytes deteriorate faster in abandoned vegetation due to the high pressure of spreading generalists than on sites where soil was formerly ploughed [ 62 ]. Therefore, the introduction of grazing is the most desired restoration measure for their conservation as phytomass consumption and seed dispersal promote the emergence/survival of specialists.…”

Section: Resultsmentioning

confidence: 99%

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Current Condition of Pannonic Salt Steppes at Their Distribution Limit: What Do Indicator Species Reveal about Habitat Quality?

Dítě

Šuvada²,

Tóth

et al. 2021

Plants

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Little is known about the suite of ecological conditions under which characteristic species may continue to develop under the pressure of recent habitat deterioration. We aimed to determine the niche of three indicator species of the priority habitat Pannonic salt steppes and to find out how their vegetation composition, land use, and soil chemistry mirror the current condition of their typical habitat. A plot-based vegetation survey was conducted in degraded and in pristine (reference) inland salt steppes in East-Central Europe. We confirmed decreased habitat quality at their northern geographical limit. Most of the sites there showed a strong prevalence of generalists (e.g., Elytrigia repens) and lack of specialists, both resulting from lowered habitat extremity and inappropriate land use (abandonment). A small proportion of plots (19%) were in the same good condition as the reference vegetation in the central area. Soil analyses revealed that the studied halophytes are able to persist on desalinized soils if the land use is suitable. The occurrence of the annual Camphorosma annua (Amaranthaceae) was driven largely by abiotic stress; grazing alone is insufficient for its long-term persistence, while the perennial Artemisia santonicum (Asteraceae) and Tripolium pannonicum (Asteraceae) have higher survival chances as they are able to coexist with generalists. Overall habitat quality can be reliably determined from the analyzed ecological conditions of indicator species. The outcomes of the presented work are relevant for conservation practice and can serve as a quick tool for assessing the current stage of other grassland habitats.

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Section: Resultssupporting

confidence: 69%

Section: Resultsmentioning

confidence: 99%

Current Condition of Pannonic Salt Steppes at Their Distribution Limit: What Do Indicator Species Reveal about Habitat Quality?

Dítě

Šuvada²,

Tóth

et al. 2021

Plants

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“…of the Brazilian coast, are mainly distributed over organic and hydromorphic soils [ 35 ]. The halophyte vegetation from Chile and Europe is restricted to continental salines [ 36 , 37 ]. Furthermore, soil scarcity can also determine natural plant formations such as those inhabiting rocky outcrops [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Using worldwide edaphic data to model plant species niches: An assessment at a continental extent

et al. 2017

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Ecological niche modeling (ENM) is a broadly used tool in different fields of plant ecology. Despite the importance of edaphic conditions in determining the niche of terrestrial plant species, edaphic data have rarely been included in ENMs of plant species perhaps because such data are not available for many regions. Recently, edaphic data has been made available at a global scale allowing its potential inclusion and evaluation on ENM performance for plant species. Here, we take advantage of such data and address the following main questions: What is the influence of distinct predictor variables (e.g. climatic vs edaphic) on different ENM algorithms? and what is the relationship between the performance of different predictors and geographic characteristics of species? We used 125 plant species distributed over the Neotropical region to explore the effect on ENMs of using edaphic data available from the SoilGrids database and its combination with climatic data from the CHELSA database. In addition, we related these different predictor variables to geographic characteristics of the target species and different ENM algorithms. The use of different predictors (climatic, edaphic, and both) significantly affected model performance and spatial complexity of the predictions. We showed that the use of global edaphic plus climatic variables generates ENMs with similar or better accuracy compared to those constructed only with climate variables. Moreover, the performance of models considering these different predictors, separately or jointly, was related to geographic properties of species records, such as number and distribution range. The large geographic extent, the variability of environments and the different species’ geographical characteristics considered here allowed us to demonstrate that global edaphic data adds useful information for plant ENMs. This is particularly valuable for studies of species that are distributed in regions where more detailed information on soil properties is poor or does not even exist.

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“…,b), this species displays facultative halophytic behaviour, as shown by Melečková et al . (). Among the remaining species, L. corniculatus presented the lowest index of stress intensity.…”

Section: Discussionmentioning

confidence: 97%

Salt effects on functional traits in model and in economically important Lotus species

et al. 2016

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A common stress on plants is NaCl-derived soil salinity. Genus Lotus comprises model and economically important species, which have been studied regarding physiological responses to salinity. Leaf area ratio (LAR), root length ratio (RLR) and their components, specific leaf area (SLA) and leaf mass fraction (LMF) and specific root length (SRL) and root mass fraction (RMF) might be affected by high soil salinity. We characterised L. tenuis, L. corniculatus, L. filicaulis, L. creticus, L. burtii and L. japonicus grown under different salt concentrations (0, 50, 100 and 150 mm NaCl) on the basis of SLA, LMF, SRL and RMF using PCA. We also assessed effects of different salt concentrations on LAR and RLR in each species, and explored whether changes in these traits provide fitness benefit. Salinity (150 mm NaCl) increased LAR in L. burtii and L. corniculatus, but not in the remaining species. The highest salt concentration caused a decrease of RLR in L. japonicus Gifu, but not in the remaining species. Changes in LAR and RLR would not be adaptive, according to adaptiveness analysis, with the exception of SLA changes in L. corniculatus. PCA revealed that under favourable conditions plants optimise surfaces for light and nutrient acquisition (SLA and SRL), whereas at higher salt concentrations they favour carbon allocation to leaves and roots (LMF and RMF) in detriment to their surfaces. PCA also showed that L. creticus subjected to saline treatment was distinguished from the remaining Lotus species. We suggest that augmented carbon partitioning to leaves and roots could constitute a salt-alleviating mechanism through toxic ion dilution.

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Succession of Saline Vegetation in Slovakia after a Large-Scale Disturbance

Cited by 10 publications

References 47 publications

Current Condition of Pannonic Salt Steppes at Their Distribution Limit: What Do Indicator Species Reveal about Habitat Quality?

Current Condition of Pannonic Salt Steppes at Their Distribution Limit: What Do Indicator Species Reveal about Habitat Quality?

Using worldwide edaphic data to model plant species niches: An assessment at a continental extent

Salt effects on functional traits in model and in economically important Lotus species

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