CCL

Összesen 10 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM083188
Első szerző:Dengler, Jürgen
Cím:Biodiversity of Palaearctic grasslands: a synthesis / Jürgen Dengler, Monika Janišová, Péter Török, Camilla Wellstein
Dátum:2014
ISSN:0167-8809
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Agriculture Ecosystems & Environment. - 182 (2014), p. 1-14. -
További szerzők:Janišová, Monika Török Péter (1979-) (biológus-ökológus) Wellstein, Camilla
Pályázati támogatás:PD 100 192
OTKA
TÁMOP-4.2.4.A/2-11-1-2012-0001
TÁMOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM080826
035-os BibID:(cikkazonosító)106579 (WoS)000500212000002 (Scopus)85067889310
Első szerző:Gayer, Christoph
Cím:Carabid functional diversity is enhanced by conventional flowering fields, organic winter cereals and edge habitats / Christoph Gayer, Gábor L. Lövei, Tibor Magura, Martin Dieterich, Péter Batáry
Dátum:2019
ISSN:0167-8809
Megjegyzések:The continued decline in farmland biodiversity in Europe despite substantial funding for agri-environment schemes (AES) has prompted calls for more effective biodiversity conservation measures. The current AES regime allows for both holistic measures, such as organic farming, that broadly target the agricultural environment and biodiversity-specific measures, such as flowering fields, but little is known of their relative efficacies. To address this gap, we studied carabids in 48 arable fields that presented four crop types under different management practices along a gradient of landscape complexity: (a) conventionally managed crop (winter wheat), (b) biodiversity-specific AES under conventional management (sown flowering field), (c) organically managed mono-crop (winter spelt) and (d) organically managed lentil-mixedcrop (lentil intercropped with cereal or camelina). For these crop-use types, we compared functional diversity of carabid assemblages at the edge and center of the fields. Using pitfall traps, we collected more than 55,000 carabids of 95 species over two years. We characterized diversity using community weighted means and functional divergence of three ecological traits ? body size, feeding type, and flight ability. Conventional flowering fields and organic winter spelt, but not organic spring sown lentil-mixed-crop, increased the proportion of plant-feeding carabids; moreover, trait characteristics and their divergences were most affected by field edges, with smaller, less carnivorous and more flight-enabled carabid assemblages found there than in the center. Divergence of body size and feeding type but not of flight ability was larger at the field edges than centres. Surrounding landscape complexity did not affect carabid traits. We conclude that future AES policy should avoid strict decisions between biodiversity specific- and holistic measures. Instead, priority should be given to a diversity of different measures, targeting the enhancement of edge habitats as well as productive and non-productive measures.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Agri-environmental schemes
Arable fields
Field margins
Herbivores
Landscape structure
Traits
Megjelenés:Agriculture Ecosystems & Environment. - 284 (2019), p. 1-8. -
További szerzők:Lövei Gábor L. Magura Tibor (1969-) (ökológus) Dieterich, Martin Batáry Péter
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM118221
035-os BibID:(cikkazonosító)108901 (WoS)001152827800001 (Scopus)85183500222
Első szerző:Hazhir, Shadi
Cím:Effects of livestock grazing on soil seed banks vary between regions with different climates / Shadi Hazhir, Reza Erfanzadeh, Hassan Ghelichnia, Bahar S. Razavi, Péter Török
Dátum:2024
ISSN:0167-8809
Megjegyzések:The influence of grazing on soil seed bank (SSB) characteristics determines the management of rangelands in different climates. Here we studied the responses of SSBs to livestock grazing in three regions with different climates - arid, semiarid and subhumid - in northern Iran. In each region 30 pairwise SSB samples were collected on 1 m2 plots, 15 in intensely grazed areas and 15 in ungrazed areas. The total SSB densities, their diversity and species richness and the densities of functional groups were compared between the grazed and ungrazed plots and between the climatic regions. Both climate and grazing as well as their interaction affected SSB characteristics. Although the results of the non-metric multidimensional scaling (NoS) showed noticeable differences in SSB species composition between grazed and ungrazed plots in all three regions, the magnitude of the grazing effect on the SSB was different between climatic regions. In total, 119 species germinated from the soil samples: 33 species in semiarid, 39 species in arid and 61 species in subhumid samples. The highest total SSB density, diversity (Shannon index) and richness were found in subhumid climate with an average of 138.90 seeds/m2, H = 2.27 and 17.83 species/sample, respectively. In ungrazed areas the average SSB density was 26.60 seeds/m2, 46.06 seeds/m2 and 195.90 seeds/m2 in arid, semiarid and subhumid climate, respectively. In grazed areas the corresponding figures were 12.40 seeds/m2, 7.00 seeds/m2 and 110.40 seeds/m2. Averages of SSB diversity in ungrazed areas were 1.24, 1.60 and 2.42 in arid, semiarid and subhumid climates, respectively, as compared to 1.27, 0.97 and 2.20 in grazed areas. The averages SSB richness in ungrazed areas were 5.21 species/sample, 7.54 species/sample and 21.25 species/sample in arid, semiarid and subhumid climate, respectively, whereas in grazed areas 4.00 species/sample, 2.86 species/sample and 16.15 species/sample were found on average. Overall, intensive grazing was linked to lower SSB characteristics in all three climatic regions, but the size of the effect differed between the climatic regions. Thus, we concluded that the impact of grazing on SSB density, diversity and richness is climate-dependent. Hence, the climatic conditions have to be considered when evaluating the effects of grazing on soil seed banks.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Climatic conditions
Exclosure
Diversity
Herbivory
Megjelenés:Agriculture Ecosystems & Environment. - 364 (2024), p. 1-8. -
További szerzők:Erfanzadeh, Reza Ghelichnia, Hassan Razavi, Bahar S. Török Péter (1979-) (biológus-ökológus)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

4.

001-es BibID:BIBFORM061965
Első szerző:Horváth Roland (biológus-ökológus)
Cím:In stable, unmanaged grasslands local factors are more important than landscape-level factors in shaping spider assemblages / Roland Horváth, Tibor Magura, Csaba Szinetár, János Eichardt, Éva Kovács, Béla Tóthmérész
Dátum:2015
ISSN:0167-8809
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Agriculture Ecosystems & Environment. - 208 (2015), p. 106-113. -
További szerzők:Magura Tibor (1969-) (ökológus) Szinetár Csaba Eichardt János Kovács Éva Tóthmérész Béla (1960-) (ökológus)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM010631
Első szerző:Horváth Roland (biológus-ökológus)
Cím:Spiders are not less diverse in small and isolated grasslands, but less diverse in overgrazed grasslands: A field study (East Hungary, Nyírség) / Roland Horváth, Tibor Magura, Csaba Szinetár, Béla Tóthmérész
Dátum:2009
Megjegyzések:The effects of size, isolation and grazing intensity on spider assemblages were studied in the fragments of sandy grasslands (East Hungary, Nyírség). Spiders were sampled by sweep-netting at eight differentsized grassland fragments between 2001 and 2003 from April to October fortnightly. The following hypotheses were tested: (i) the rules of classical island biogeography are assessed for grassland fragments: the number of species increases with the size and decreases with the isolation of the fragment. (ii) Species richness of spiders decreases by the intensity of grazing. (iii) Grazing may have a negative influence on the large, web-builder spiders and on the diurnal hunters associated to the vegetation. During the 3-year study period, 3842 spider specimens belonging to 90 species were collected from the eight sandy grassland fragments. We found no significant relationship for the size and isolation of grassland fragments neither with the number of species nor the number of vegetationdwelling species, species associated with sandy soils, and with the vegetation-dwelling species specific to sandy area. Our result suggests that even the small fragments had a relatively large species pool. There was a positive correlation of the average height of vegetation as a measure of grazing intensity with the total number of spider species, as well as with the number of vegetation-dwelling species, species associated with sandy soils, and also with the number of vegetation-dwelling species specific to sandy area. By indicator species analysis (IndVal) we found that the grazing had a negative influence on the large, web-builder spiders and also those diurnal hunters, which were associated to the vegetation.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Fragmentation
Species richness
Management
Sweep-netting
Web-builder spiders
Indicator species
Megjelenés:Agriculture, Ecosystems and Environment. - 130 (2009), p. 16-22. -
További szerzők:Magura Tibor (1969-) (ökológus) Szinetár Csaba Tóthmérész Béla (1960-) (ökológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
Borító:

6.

001-es BibID:BIBFORM109975
035-os BibID:(cikkazonosító)108477 (WoS)001059990200001 (Scopus)85150468431
Első szerző:Tölgyesi Csaba (ökológus)
Cím:Maintaining scattered trees to boost carbon stock in temperate pastures does not compromise overall pasture quality for the livestock / Csaba Tölgyesi, András Kelemen, Zoltán Bátori, Réka Kiss, Alida Anna Hábenczyus, Krisztina Havadtői, Anna Varga, Laszló Erdős, Kata Frei, Benedek Tóth, Péter Török
Dátum:2023
ISSN:0167-8809
Megjegyzések:Scattered trees in wood-pastures represent outstanding conservation value by providing microhabitats for a variety of organisms. They also diversify ecosystem services by creating shade for livestock, and capturing and storing carbon. However, trees in wood-pastures are declining Europe-wide and an appropriate legal environment to maintain them is mostly lacking. Here we looked beyond the well-documented beneficial effects of trees and assessed potential ecosystem disservices, which may drive the controversial appreciation of trees. In a grazing exclusion experiment, we assessed the effect of trees on herbage production in wood-pastures from semiarid continental to humid montane areas in the temperate deciduous forest ecoregion, and found that trees have a suppressive effect throughout the year, although herbage nutritive value, as indicated by herbage nitrogen content, seems to be improved in spring. When we up-scaled the local ecosystem disservice on herbage yield to entire wood-pastures, the loss remained below 3%, which is lower than reported gains in livestock production due to free access to shade. Thus, the motivation for the under-appreciation of trees by land managers and decision makers may lie in that trees suppress herbage production, but the importance of this effects is offset by the magnitude of the beneficial services of trees. We recommend current wood-pasture stakeholders to revisit their attitude towards scattered trees and encourage tree planting campaigns and tree-based climate mitigation strategies to consider the protection of trees in wood-pastures and the establishment of young ones in currently open pastures up to traditionally low tree cover proportions, as livestock production is unlikely to be compromised by this action.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Agroforestry system
Biomass
Carbon sequestration
Ecosystem service
Grazing
Herbage nutritive value
High nature and cultural value farming
Tree-grass interaction
Wood-pasture
Megjelenés:Agriculture Ecosystems & Environment. - 351 (2023), p. 1-8. -
További szerzők:Kelemen András (1986-) (biológus-ökológus) Bátori Zoltán Kiss Réka (1990-) (biológus, ökológus) Hábenczyus Alida Anna Havadtői Krisztina Varga Anna Erdős László Frei Kata Tóth Benedek Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:KKP 144068
Egyéb
PD 132131
Egyéb
FK 134384
Egyéb
FK 142428
Egyéb
PD 137632
Egyéb
K 137573
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

7.

001-es BibID:BIBFORM102735
035-os BibID:(WoS)000468248000007 (Scopus)85058444972
Első szerző:Torma Attila
Cím:Species and functional diversity of arthropod assemblages (Araneae, Carabidae, Heteroptera and Orthoptera) in grazed and mown salt grasslands / Attila Torma, Péter Császár, Miklós Bozsó, Balázs Deák, Orsolya Valkó, Orsolya Kiss, Róbert Gallé
Dátum:2019
ISSN:0167-8809
Megjegyzések:Grazing and mowing are widely applied management practices in semi-natural grasslands, which are one of the most important habitats for biodiversity conservation in Europe. Due to the decline in extensively grazing livestock numbers, an increasing area of formerly grazed grasslands has being used as mown grasslands. However, we have scarce information on how arthropod assemblages are influenced by mowing in formerly grazed pastures. We assessed the effects of mowing compared to grazing on the species richness, abundance and functional diversity of arthropods in three grassland complexes in Hungary. Since 2005, these salt grasslands have been divided into two management units: extensive grazing management has been continued in one part, while annual late cutting has been established in the other part. In each management unit five sites were sampled. Spiders and ground beetles were sampled using pitfall traps, orthopterans and true bugs were sampled using sweep nets twice before cutting in 2015. In total, the data relating to 12,576 adult individuals of 334 species were analysed using mixed-models. Plant-dwelling true bugs and orthopterans responded more sensitively to mowing than ground-dwelling spiders and ground beetles. Beside the general negative effect of mowing on the species richness and abundance of plant-dwelling arthropods, the shifts in the community weighted mean values of these assemblages suggested the importance of the body size, trophic behaviour and dispersal ability of species in the functional response of these assemblages to the different management regimes. Ground beetles and spiders were rather influenced by the differences in the moisture conditions and vegetation properties. Presumably, strong abiotic stressors such as drought can partly override management effects on ground-dwelling arthropods. The effect of uniform and simultaneous biomass removal on large areas, and the direct mortality caused by mowing was the most disadvantageous for plant-dwelling arthropods. Based on our results, traditional management practices should be prioritized in grassland conservation, as alternative management practices might be less effective in preserving grassland biodiversity.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Functional diversity
Management
Ground beetles
Orthopterans
Pannonian salt grasslands
Spiders
Trait
True bugs
Megjelenés:Agriculture Ecosystems & Environment. - 273 (2019), p. 70-79. -
További szerzők:Császár Péter Bozsó Miklós Deák Balázs (1978-) (biológus) Valkó Orsolya (1985-) (biológus) Kiss Orsolya Gallé Róbert
Pályázati támogatás:NKFI KH 126476
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

8.

001-es BibID:BIBFORM067703
Első szerző:Török Péter (biológus-ökológus)
Cím:Managing for species composition or diversity? Pastoral and free grazing systems in alkali steppes / Török Péter, Valkó Orsolya, Deák Balázs, Kelemen András, Tóth Edina, Tóthmérész Béla
Dátum:2016
ISSN:0167-8809 1873-2305
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Agriculture, Ecosystems and Environment. - 234 (2016), p. 23-30. -
További szerzők:Valkó Orsolya (1985-) (biológus) Deák Balázs (1978-) (biológus) Kelemen András (1986-) (biológus-ökológus) Tóth Edina (1990-) (biológus) Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:OTKA-100192
OTKA
OTKA-111807
OTKA
SROP-4.2.2.B-15/1/KONV2015-0001
Egyéb
TÁMOP 4.2.1/B-09/1/KONV-2010-0007
TÁMOP
TÁMOP 4.2.2/B-10/1-2010-0024
TÁMOP
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

9.

001-es BibID:BIBFORM081244
Első szerző:Tälle, Malin
Cím:Grazing vs. mowing : a meta-analysis of biodiversity benefits for grassland management / Malin Tälle, Balázs Deák, Peter Poschlod, Orsolya Valkó, Lars Westerberg, Per Milberg
Dátum:2016
ISSN:0167-8809
Megjegyzések:To maintain the high biodiversity of semi-natural grasslands, management by grazing or mowing is needed. Given the limited resources and few remaining areas, the best management method should be used. However, only a few studies comparing the effects of mowing and grazing on grassland biodiversity exists. Therefore, the goal of the present review was to extract as much data as possible from the literature and evaluate them using a meta-analysis approach. We searched scientific and grey literature for studies comparing the effects of grazing and annual mowing on outcomes relevant for biodiversity conservation. We identified 35 relevant studies on grazing and annual mowing that provided data suitable for the meta-analysis. We found that grazing generally had a more positive effect on the conservation value of semi-natural grasslands compared to mowing, but effect sizes were generally small to moderate for most contrasts. Furthermore, effects varied across some grassland characteristics e.g. for different grassland types, with grazing and mowing having a similar effect or mowing having a more positive effect in certain cases. Our results suggest, that in most cases grazing should be the preferred management method when managing for grassland conservation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Conservation management
Cutting
Evidence-based
Livestock grazing
Meadow
Pasture
Semi-natural grassland
Megjelenés:Agriculture Ecosystems & Environment. - 222 (2016), p. 200-212. -
További szerzők:Deák Balázs (1978-) (biológus) Poschlod, Peter Valkó Orsolya (1985-) (biológus) Westerberg, Lars Milberg, Per
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

10.

001-es BibID:BIBFORM057908
Első szerző:Valkó Orsolya (biológus)
Cím:Environmental factors driving seed bank diversity in alkali grasslands / Orsolya Valkó, Béla Tóthmérész, András Kelemen, Edina Simon, Tamás Miglécz, Balázs András Lukács, Péter Török
Dátum:2014
ISSN:0167-8809
Megjegyzések:For an effective conservation and management in grasslands it is essential to understand mechanismssustaining biodiversity. To gain knowledge is especially crucial in stressed grasslands harbouring a uniqueflora and fauna, like alkali grasslands. Aboveground vegetation, seed bank and environmental factors werestudied in three stands of the following alkali grassland types: (i) Artemisia dry alkali grasslands at highestelevations; (ii) Puccinellia high and (iii) Puccinellia low grasslands at medium to low elevations, and (iv)Juncus wet alkali grasslands at the lowest elevations. We tested the following hypotheses: (i) Seed bankspecies diversity and density are the highest in the most stressed grassland types, where regeneration byseeds could have a major importance in sustaining vegetation diversity. (ii) Seed bank density of hygrophytesincreases with decreasing elevation, because the cover of hygrophytes in the vegetation increaseswith decreasing elevation. The mean seed bank density ranged from 30,104 up to 51,410 seeds/m2, whichis higher than in most dry grasslands. Both the lowest seed bank density and diversity were detected inthe most stressed Puccinellia high grasslands; Spergularia salina was the only abundant seed bank species(possessing at least 1000 seeds/m2). These results not supported our first hypothesis. We detected thehighest seed densities of almost all hygrophyte species in the lowest-elevated Juncus grasslands. But,we did not find a significant monotonous correlation between elevation and the overall hygrophyteseed bank density; because most of the hygrophyte species were missing from the seed bank at themedium-elevated, but most saline Puccinellia grasslands. Thus, our results only partly supported the secondhypothesis. In total we detected more species in the seed bank than in the aboveground vegetationwhich emphasises that seed bank plays an important role in sustaining the diversity of alkali grasslands.However, characteristic graminoids possessed no considerable seed bank, except for Juncus compressus(up to 38,619 seeds/m2). We can conclude that persistence and establishment of most alkali grasslandspecies are not supported by the local persistent seed bank.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Elevation
Salt marsh
Salinity
Seed density
Seedling emergence
Dispersal
Doktori iskola
Egészség- és Környezettudomány
Megjelenés:Agriculture Ecosystems & Environment. - 182 (2014), p. 80-87. -
További szerzők:Tóthmérész Béla (1960-) (ökológus) Kelemen András (1986-) (biológus-ökológus) Simon Edina (1981-) (ökológus) Miglécz Tamás (1986-) (biológus ökológus) Lukács Balázs András (1979-) (ökológus) Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:TÁMOP-4.2.2/B-10/1-2010-0024
TÁMOP
Juhász-Nagy Pál Doktori Iskola
TÁMOP-4.2.1/B-09/1/KONV-2010-0007
TÁMOP
Kvantitatív ökológiai kutatások
TÁMOP-4.2.4.A/2-11-1-2012-0001
TÁMOP
PD 100 192
OTKA
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1 
Corvina könyvtári katalógus v8.2.27 © 2023 Monguz kft. Minden jog fenntartva.