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001-es BibID:BIBFORM079634
Első szerző:Deák Balázs (biológus)
Cím:The effects of micro-habitats and grazing intensity on the vegetation of burial mounds in the Kazakh steppes / Deák Balázs, Tölgyesi Csaba, Kelemen András, Bátori Zoltán, Gallé Róbert, Tatyana M. Bragina, Abil I. Yerkin, Valkó Orsolya
Dátum:2017
ISSN:1755-0874 1755-1668
Megjegyzések:Background: Burial mounds (kurgans) of Eurasian steppes are man-made habitat islands that have the potential to harbour rich plant diversity due to micro-habitats associated with their topography. Aims: We assessed whether kurgan micro-habitats harboured different species pools and functional groups from those found on the surrounding steppes. In addition, we asked if these mounds were affected by different grazing intensities from those on the surrounding vegetation. Methods: We surveyed kurgan micro-habitats (northern and southern slopes, surrounding ditch) and adjacent steppe plains in non-grazed, moderately grazed and heavily grazed sites in northern Kazakhstan. We analysed differences in species composition of four habitats under three grazing regimes using Generalised Linear Mixed Models, PCA ordination and indicator species analysis. Results: Kurgan micro-habitats had diverse vegetation and supported the co-existence of plant species with different environmental needs. We identified 16 steppe specialists confined to kurgan micro-habitats. Steppe vegetation was welladapted to extensive grazing, although heavy grazing supported ruderals and a decline in steppe specialists. There was a significant interaction between grazing intensity and habitat type: heavy grazing supported ruderals and suppressed steppe specialists especially on the slopes. Conclusions: We highlighted that kurgans play an important role as maintaining high plant diversity locally in extensive steppe plains in Central-Asia by increasing environmental heterogeneity and supporting specialist species confined to these micro-habitats.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
degradation
kurgan
livestock
microsite
plant diversity
slope
Megjelenés:Plant Ecology & Diversity. - 10 : 5-6 (2017), p. 509-520. -
További szerzők:Tölgyesi Csaba (1984-) (ökológus) Kelemen András (1986-) (biológus-ökológus) Bátori Zoltán Gallé Róbert Bragina, Tatyana M. Yerkin, Abil I. Valkó Orsolya (1985-) (biológus)
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2.

001-es BibID:BIBFORM084225
Első szerző:László Zoltán (biokémikus, molekuláris biológus)
Cím:Landscape and local effects on multiparasitoid coexistence / László Zoltán, Tóthmérész Béla
Dátum:2013
ISSN:1752-458X
Megjegyzések:1. When resources are spatially fragmented, strength of competition between species is diminished by alternative patterns of resource use and parasitoids of the same host species become potential competitors. The coexistence of competing species in spatially fragmented habitats may be achieved, however, due to niche partitioning and alternative responses to patch characteristics. To evaluate responses to resource patterns facilitating coexistence, we examined the resource use patterns of four parasitoid species (Orthopelma mediator, Pteromalus bedeguaris, Torymus bedeguaris and Glyphomerus stigma) of the gall inducer Diplolepis rosae at both landscape and local scales. 2. Parasitoid species of rose gall communities behave differently at landscape and local scales. Parasitism rates and parasitoid incidence showed correlations with local characteristics in some cases, with landscape characteristics in others and, in some other cases with both. 3. Species responses to the examined characteristics depend rather on life history traits of parasitoids than on their frequency within the community. The examined parasitoids responded differently to landscape and local characteristics, while their phenology corresponded with their responses. Species emerging earlier in spring (O. mediator and P. bedeguaris) responded only to local variations, while later emerging species (T. bedeguaris and G. stigma) were sensitive to landscape characteristics as well. 4. Differences between species-specific and overall responses highlight the importance of species characteristics when considering multiparasitoid communities, and support both fine and coarse partitioning between different species coexisting in the community.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Coexistence
land use
landscape fragmentation
parasitism rate
parasitoid incidence
tritrophic system
Megjelenés:Insect Conservation and Diversity. - 6 : 3 (2013), p. 354-364. -
További szerzők:Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:TÁMOP-4.2.1/B-09/1/KONV-2010-0007
TÁMOP
CNCSIS- UEFISCSU PN II-RU 413/2010
Egyéb
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3.

001-es BibID:BIBFORM095768
035-os BibID:(WoS)000675421600001 (Scopus)85110980421
Első szerző:López-Bedoya, Pablo A.
Cím:What level of native beetle diversity can be supported by forestry plantations? A global synthesis / Pablo A. López-Bedoya, Tibor Magura, Felicity A. Edwards, David P. Edwards, José M. Rey-Benayas, Gábor L. Lövei, Jorge Ari Noriega
Dátum:2021
ISSN:1752-458X 1752-4598
Megjegyzések:1. Forestry plantations have been established globally to meet timber demands, often leading to the conversion of natural to artificial forests. Forestry plantations may support natural elements of forest biodiversity, but understanding their role in the maintenance of biodiversity is a crucial question. 2. We performed a meta-analysis of 48 studies to determine how forestry plantations relative to natural forests influence the species richness and abundance of three important coleopteran groups (i.e., ground beetles, rove beetles, and dung beetles), given their essential role in ecosystem functioning. 3. We assessed whether beetle responses depended on taxonomic group, geographical location, native or exotic character of the planted tree species, and associated management characteristics (i.e., composition, size, age, and connectivity of the plantations). 4. We found that forestry plantations negatively affected coleopteran species richness and abundance compared to natural forests. The negative impact was most severe in plantations with exotic tree species and located in tropical biomes. 5. Species richness and abundance of beetles significantly increased with plantation age in native plantations but decreased in exotic ones. Also, small plantations close to native forest had higher beetle species richness and abundance than ones located far away from native forest. 6. Stopping the conversion of natural forests to plantations, promoting the use of native tree species, and lengthening rotations are critical for allowing biodiversity recovery in forestry plantations, combined with a robust conservation strategy to protect threatened biodiversity and ecosystem functioning.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Carabidae
conservation
ecological indicators
exotic
insect diversity
native
natural forest cover
Scarabaeidae
Staphylinidae
Megjelenés:Insect Conservation and Diversity. - 14 (2021), p. 736-747. -
További szerzők:Magura Tibor (1969-) (ökológus) Edwards, Felicity A. Edwards, David P. Rey-Benayas, José Lövei Gábor L. Noriega, Jorge Ari
Pályázati támogatás:OTKA K131459
Egyéb
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4.

001-es BibID:BIBFORM066913
Első szerző:Lövei Gábor L.
Cím:Ground beetle (Coleoptera: Carabidae) diversity is higher in narrow hedges composed of a native compared to non-native trees in a Danish agricultural landscape / Lövei Gabor L., Magura Tibor
Dátum:2017
ISSN:1752-458X
Megjegyzések:1. Non-cultivated areas in agricultural landscapes can substantially contribute to biodiversity. Therefore, to examine the role of tree-line hedges in supporting arthropod diversity in an agricultural landscape, we sampled carabid beetles in three replicates of a native deciduous (hawthorn, Crataegus monogyna),a non-native deciduous (rowan, Sorbus intermedia), and a non-native coniferous (spruce, Picea spp.) hedge in Jytland, Denmark.2. We hypothesised that hedgerows with deciduous trees harbour more diverse carabid assemblages than hedges composed of non-native trees.3. The number of carabid individuals and species was highest in the hawthorn hedges and significantly lower in rowan and spruce. This was caused by the presence of forest specialist species. Differences in the number of the grassland and the cropland specialist ground beetle individuals and species were not statistically significant among the hedges.4. Litter depth and the density of herbs and grasses negatively, while hedge width positively influenced carabid diversity.5. Overall, hedges composed of the native, deciduous hawthorn were superior to ones composed of the non-native rowan, and especially to coniferous ones to conserve and maintain carabid diversity in this cultivated Danish landscape.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Carabids
character species
diversity
hawthorn
IndVal
rowan
spruce
Megjelenés:Insect Conservation and Diversity. - 10 : 2 (2017), p. 141-150. -
További szerzők:Magura Tibor (1969-) (ökológus)
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5.

001-es BibID:BIBFORM087506
035-os BibID:(cikkazonosító)320
Első szerző:Magura Tibor (ökológus)
Cím:The permeability of natural versus anthropogenic forest edges modulates the abundance of ground beetles of different dispersal power and habitat affinity / Tibor Magura, Gábor L. Lövei
Dátum:2020
ISSN:1424-2818
Megjegyzések:Forest edges are formed by natural or anthropogenic processes and their maintaining processes cause fundamentally different edge responses. We evaluated the published evidence on the effect of various edges on the abundance of ground beetles of different habitat affinity and dispersal power. Our results, based on 23 publications and 86 species, showed that natural forest edges were impenetrable for open-habitat species with high dispersal power, preventing their influx into the forest interiors, while forest specialist species of limited dispersal power penetrated and reached abundances comparable to those in forest interiors. Anthropogenic edges, maintained by continued disturbance were permeable by macropterous open-habitat species, allowing them to invade the forest interiors, while such edges (except the forestry-induced ones) deterred brachypterous forest specialists. Different permeability of forest edges with various maintaining processes can affect ecosystem functions and services, therefore the preservation and restoration of natural forest edges are key issues in both forest ecology and nature conservation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Diversity. - 12 : 9 (2020), p. 1-9. -
További szerzők:Lövei Gábor L.
Pályázati támogatás:OTKA K-131459
OTKA
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6.

001-es BibID:BIBFORM113379
035-os BibID:(cikkazonosító)846 (WoS)001035239000001 (Scopus)85166206741
Első szerző:Málik-Roffa Hajnalka (biológus)
Cím:BugTracker: Software for Tracking and Measuring Arthropod Activity / Hajnalka Málik-Roffa, Dávid Tőzsér, Béla Tóthmérész, Tibor Magura
Dátum:2023
ISSN:1424-2818
Megjegyzések:The automated video tracking of the activity/movement of an experimental organism is essential for reliable, repeatable quantitative analyses in behavioral ecology and also in other disciplines. There are only some open-access, open-source automated tracking software applications that can track unmarked organisms. Moreover, several of these software applications are substantially affected by brightness and differences in the lighting conditions of the video recording. Our Python-based software, called BugTracker, uses the latest innovations in computer vision technologies to solve these problems. By analyzing videos with considerably different lighting conditions with BugTracker and other available software, we demonstrate that our software could reliably track the studied organisms of any size and speed. Additionally, the results provide accurate measures of the organism's movements. BugTracker is the most reliable currently available, easy-to-use, and automated tracking software compatible with the Windows, Linux, and MacOS operating systems.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
behavior
activity
locomotion
open field test
video
tracking
Phyton programming language
Megjelenés:Diversity. - 15 : 7 (2023), p. 1-10. -
További szerzők:Tőzsér Dávid (1990-) (környezetkutató) Tóthmérész Béla (1960-) (ökológus) Magura Tibor (1969-) (ökológus)
Pályázati támogatás:K-131459
OTKA
PD-138806
OTKA
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