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001-es BibID:BIBFORM083186
035-os BibID:(WoS)000438116500009 (Scopus)85047828659
Első szerző:Deák Balázs (biológus)
Cím:Landscape and habitat filters jointly drive richness and abundance of specialist plants in terrestrial habitat islands / Deák Balázs, Valkó Orsolya, Török Péter, Kelemen András, Bede Ádám, Csathó András István, Tóthmérész Béla
Dátum:2018
ISSN:0921-2973
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Landscape Ecology. - 33 : 7 (2018), p. 1117-1132. -
További szerzők:Valkó Orsolya (1985-) (biológus) Török Péter (1979-) (biológus-ökológus) Kelemen András (1986-) (biológus-ökológus) Bede Ádám Csathó András István Tóthmérész Béla (1960-) (ökológus)
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DOI
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2.

001-es BibID:BIBFORM001358
Első szerző:Jordán Ferenc
Cím:Carabids (Coleoptera: Carabidae) in a forest patchwork: a connectivity analysis of the Bereg Plain landscape graph / Ferenc Jordán, Tibor Magura, Béla Tóthmérész, Vera Vasas, Viktor Ködöböcz
Dátum:2007
Megjegyzések:For many species, one important key to persistence is maintaining connectivity among local populations that allow for dispersal and gene flow. This is probably true for carabid species (Coleoptera: Carabidae) living in the fragmented forests of the Bereg Plain (NE Hungary and W Ukraine). Based on field data, we have drafted a landscape graph of the area representing the habitat network of these species. Graph nodes and links represented two kinds of landscape elements: habitat (forest) patches and corridors, respectively. The quality of habitat patches and corridors were ranked (from low (1) to high (4)), reflecting local population sizes in the case of patches and estimated permeability in the case of corridors. We analysed (1) the positional importance of landscape elements in maintaining the connectivity of the intact network, (2) the effect of inserting hypothetical corridors into the network, (3) the effects of improving the quality of the existing corridors, and (4) how to connect every patch in a cost-effective way. Our results set quantitative priorities for conservation practice by identifying important corridors: what to protect, what to build and what to improve. Several network analytical techniques were used to account for the directed (source-sink) and highly fragmented nature of the landscape graph. We provide conservation priority ranks for the landscape elements and discuss the conditions for the use of particular network indices. Our study could be of extreme relevance, since a new highway is being planned through the area.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Landscape graph
Reachability
Isolation
Connectivity
Carabidae
Hungary
Directed graph
Megjelenés:Landscape Ecology. - 22 (2007), p. 1527-1539. -
További szerzők:Magura Tibor (1969-) (ökológus) Vasas Vera Ködöböcz Viktor Tóthmérész Béla (1960-) (ökológus)
Internet cím:DOI
elektronikus változat
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3.

001-es BibID:BIBFORM087892
Első szerző:Magura Tibor (ökológus)
Cím:Consequences of urban living: Urbanization and ground beetles / Magura Tibor, Lövei Gábor L.
Dátum:2021
ISSN:2364-494X
Megjegyzések:Purpose of Review Urbanization is increasing worldwide, transforming environmental and habitat parameters, and causing adverse effects on organisms living in urban habitats. Urban studies on ground beetles are exponentially increasing and cover all levels of biological organization. Still, to date, there is no comprehensive paper reviewing the impacts of urbanization on ground beetles at different levels of biological organization. Recent Findings At the population level, urbanization induces changes in the morphological characters, including fluctuating asymmetry, physiological condition, behavioral characteristics, seasonal activity, population size, and genetic diversity in ground beetles. Different species groups (habitat specialists vs. generalists, large vs. small-sized species, poor vs. good dispersers, predators vs. herbivores) respond differently to urbanization. Community-level changes associated with urbanization include the abundance, taxonomic as well as functional diversity, community assembly mechanisms, composition, and body size distribution. At the ecosystem level, urbanization influences several ecosystem processes and functions related to ground beetles, but data are only available concerning the edge effect and predation. Summary Urbanization has a considerable effect at various levels of the biological organization on ground beetles living in urban habitats. However, results?especially at the population and community levels?show inconsistent patterns. This discrepancy may result from individual responses and different sensitivity of species to urbanization, suggesting the importance of individualistic and functional approach in future urban studies. To preserve a rich carabid diversity in urban areas, multi-scale greenspace planning and management schemes are needed; these will also ensure both the recreational and the diversitypreserving function of urban green spaces.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
carabids
environmental changes
functional groups
population
species
urban biodiversity
Megjelenés:Current Landscape Ecology Reports. - 6 : 1 (2021), p. 9-21. -
További szerzők:Lövei Gábor L.
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4.

001-es BibID:BIBFORM085224
Első szerző:Magura Tibor (ökológus)
Cím:Changes in carabid beetle assemblages along an urbanisation gradient in the city of Debrecen, Hungary / T. Magura, B. Tóthmérész, T. Molnár
Dátum:2004
ISSN:0921-2973
Megjegyzések:Responses of carabid beetles Coleoptera: Carabidae to urbanisation were studied along an urban-suburban-rural gradient representing decreasing intensities of human disturbance. Carabids were collected by pitfall trapping during their activity period in lowland oak forest patches in the city of Debrecen, Eastern Hungary. The average number of carabid species was significantly higher in the rural and urban areas compared to the suburban one. The high overall species richness in the urban area was due to the presence of species preferring open habitats. The species richness of forest specialist carabids significantly increased along the urban-rural gradient. The overall carabid abundance was significantly higher in the rural than the other two areas. The results did not support the hypothesis that overall diversity should decrease in response to habitat disturbance. They also contradicted the intermediate disturbance hypothesis: species richness was not the highest in the moderately disturbed suburban area. In the urban area, opportunistic species dominated. The average carabid body size was significantly larger in the rural and suburban areas than in the more disturbed urban area. Multivariate methods detected changes in species composition and abundance structure along the urban-rural gradient. Significant proportion of the variation in abundance and species richness was explained by the heterogeneity of environmental variables ground temperature, surface temperature, humidity, cover of decaying wood material, herbs, canopy layer, and by the amount of prey .
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Carabid beetles
GlobeNet
Human disturbance
Increased disturbance hypothesis
Intermediate disturbance hypothesis
Mean body size hypothesis
Species richness
Urbanisation
Megjelenés:Landscape Ecology. - 19 (2004), p. 747-759. -
További szerzők:Tóthmérész Béla (1960-) (ökológus) Molnár Tamás
Internet cím:DOI
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5.

001-es BibID:BIBFORM016172
Első szerző:Magura Tibor (ökológus)
Cím:Effects of urbanization on ground-dwelling spiders in forest patches, in Hungary / Tibor Magura, Roland Horváth, Béla Tóthmérész
Dátum:2010
Megjegyzések:Effects of urbanization on ground-dwellingspiders (Araneae) were studied using pitfall trapsalong an urban-suburban?rural forest gradient inDebrecen (Hungary). We found that overall spiderspecies richness was significantly higher in the urbansites compared to the suburban and rural ones. Theincreased diversity was due to the significantly moreopen-habitat species in the assemblages at the urbansites. This suggests that species from the surroundingmatrix (grasslands and arable lands) penetrated thedisturbed urban sites. The ratio of forest species wassignificantly higher in the rural sites than in thesuburban and urban ones, suggesting that forestspecies are indeed sensitive to the disturbance causedby urbanization. Canonical correspondence analysisrevealed that the species composition changedremarkably along the urbanization gradient. Openhabitatspiders were associated with the urban sites ofhigher ground and air temperature. Forest spiderswere characteristic of the rural sites with higheramount of decaying woods. Our findings suggest thatthe overall diversity was not the most appropriateindicator of disturbance; species with differenthabitat affinity should be analyzed separately to getan ecologically relevant picture of the effect ofurbanization.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Araneae
Disturbance
Diversity
Forest species
Fragmentation
Habitat affinity
Megjelenés:Landscape Ecology. - 25 : 4 (2010), p. 621-629. -
További szerzők:Horváth Roland (1974-) (biológus-ökológus) Tóthmérész Béla (1960-) (ökológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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