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1.

001-es BibID:BIBFORM132017
Első szerző:Lövei Gábor L. (Ökológus)
Cím:Predation pressure on sentinel prey does not necessarily diminish with advancing urbanization / Gábor L. Lövei, Roland Horváth, Szabolcs Mizser, Mária Tóth, Tibor Magura
Dátum:2025
ISSN:1672-9609
Megjegyzések:Urbanization, one of the most significant global environmental issues of our time, causes significant environmental and structural changes in natural or seminatural habitat patches. These urbanization-related changes trigger significant impact on ecological interactions and functioning. Predation is one of the most important ecological interactions, and urbanization-related changes on predation pressure may have substantial ecological consequences. We studied predation pressure over a full season (from April to October) in rural versus urban forests using the sentinel approach in and around a large city (Debrecen) in the eastern part of the Great Hungarian Lowland. Model caterpillars made of nondrying green plasticine were readily attacked by arthropods, birds and mammals. From attack marks left by potential predators, a relatively high predation pressure was documented: up to 36% of the caterpillars exposed for 24 h showed attack marks. Seasonal differences were also obvious, with predation pressure during summer being significantly higher than in spring or autumn. This trend held for overall attack rates, also for attacks by arthropods and mammals but not birds. Surprisingly, attack rates were often higher in urban than rural habitats, contradicting the general hypothesis that predation pressure is lower in urbanized areas. As attack rates depend on both predator abundance and activity, and general data indicate lower predator abundances in urban habitats, this phenomenon may have been caused by hungrier predators in urban forest fragments or by the predator relaxation/safe habitat hypothesis that argues that a reduced need for vigilance allows more time to search for prey.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
artificial caterpillars
predation
rural forests
seasonality
urban forests
Megjelenés:Insect Science. - 32 : 6 (2025), p. 1926-1934. -
További szerzők:Horváth Roland (1974-) (biológus-ökológus) Mizser Szabolcs (1977-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Magura Tibor (1969-) (ökológus)
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2.

001-es BibID:BIBFORM136372
Első szerző:Magura Tibor (ökológus)
Cím:Habitat Isolation Effects on Personality in a Ground Beetle, Carabus convexus Fabricius, 1775 / Tibor Magura, Szabolcs Mizser, Roland Horváth, Mária Tóth, Ferenc Sándor Kozma, Vanda Éva Abriha-Molnár, Bianka Sipos , Anada Takár, Gábor L. Lövei
Dátum:2026
ISSN:2075-4450
Megjegyzések:Urbanization is a major and rapidly expanding form of land-use change worldwide and is one of the main drivers of the decline in arthropod diversity. Within urban matrices, remnants of natural or semi-natural habitats serve as important refuges for native organisms. However, these urban fragments are typically small, isolated, and strongly affected by various forms of disturbance. Therefore, connectivity among urban remnant patches may enhance population persistence and resilience. Increased tendencies to explore novel environments, tolerate human disturbance, and exploit unpredictable resources can be advantageous in urban environments. Accordingly, in this study of a flightless ground beetle species, we hypothesized that individuals from urban habitats?especially from isolated ones?would be bolder and more exploratory than their rural conspecifics, that sexes would differ in behavior, and that these behaviors would be temporally consistent, indicating animal personality. Activity-, exploration-, and boldness-related behavioral traits were significantly repeatable, providing evidence for animal personality, particularly in females and rural beetles. Contrary to our hypothesis, no behavioral differences were detected between rural and urban individuals. Furthermore, no significant sex-dependent differences in behavior were observed. Overall, our findings highlight the importance of species-specific traits and ecological context in shaping behavioral variation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
behavior
carabid
invertebrate
novel environment test
emergence test
activity
exploration
boldness
repeatability
Megjelenés:Insects. - 17 : 4 (2026), p. 1-15. -
További szerzők:Mizser Szabolcs (1977-) (biológus-ökológus) Horváth Roland (1974-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Kozma Ferenc Sándor Molnár Vanda Éva (1994-) (környezetkutató) Sipos Bianka (1997-) (Okleveles Biotechnológus) Takár Anada Lövei Gábor L. (1954-) (Ökológus)
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3.

001-es BibID:BIBFORM136065
Első szerző:Magura Tibor (ökológus)
Cím:Sex-specific but not urbanisation-related behavioural differences in a wolf spider, Pardosa alacris / Tibor Magura, Roland Horváth,Szabolcs Mizser, Mária Tóth, Ferenc Sándor Kozma, Gábor L. Lövei
Dátum:2026
ISSN:2045-2322
Megjegyzések:Urbanisation, one of the main driving forces of the decline in arthropod diversity, is a global environmental problem. Urbanisation causes changes to the size, connectivity, structure, and environmental parameters of their natural habitat. Due to a host of novel conditions and situations, high exploratory and risk-taking behaviours are beneficial traits to cope with urban environments. Therefore, we hypothesised that urban spiders should display more exploratory and risk-taking behaviour than their rural conspecifics. We tested 253 individuals of a widespread, forest-associated ground-dwelling wolf spider species, Pardosa alacris, sampled from rural and urban forest sites during their peak activity period, for their locomotory activity, exploratory and risk-taking behaviour by six frequently used behavioural measures. Combining the studied behavioural measures into composite scores using redundancy analysis, we identified two composite variables, the activity-exploration-boldness and the risk-taking behavioural ones. Behaviour measured by the composite activity-exploration-boldness score was significantly repeatable, but not the composite risk-taking behavioural one. There were no urbanisation-related differences in the composite behavioural scores, suggesting that higher exploratory or risk-taking behaviour may not yield fitness benefits in this generalist predator. We found, however, significant sex-specific differences in the composite activity-exploration-boldness behavioural scores. The higher activity, exploratory and boldness in males than females may be explained by their different life-history strategies and sex-specific selective pressures.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
exploratory
locomotory activity
personality
risk-taking
rural
urban
Megjelenés:Scientific Reports. - [Epub ahead of print] (2026). -
További szerzők:Horváth Roland (1974-) (biológus-ökológus) Mizser Szabolcs (1977-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Kozma Ferenc Sándor Lövei Gábor L. (1954-) (Ökológus)
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4.

001-es BibID:BIBFORM135120
Első szerző:Magura Tibor (ökológus)
Cím:Inconsistency in the Existence of Personality in Ground Beetles (Coleoptera: Carabidae) / Tibor Magura, Szabolcs Mizser, Roland Horváth, Mária Tóth, Gábor L. Lövei
Dátum:2026
ISSN:1424-2818
Megjegyzések:Trait-based approaches, particularly those focusing on behavioral traits, have become increasingly important in ecology. However, empirical studies addressing behavioral trait variation in insects remain comparatively scarce. To address this knowledge gap, we investigated the behavior of six wild-living ground beetle species for which no behavioral data have previously been reported. Using standardized behavioral measures, we found that in species occurring in their preferred forest habitats, behavioral traits related to activity, exploration, boldness, and risk-taking showed weak or limited temporal consistency. In contrast, in species inhabiting modified forest habitats, behavioral traits exhibited pronounced and repeatable individual differences, were intercorrelated, and formed behavioral syndromes. Moreover, half of the studied species showed sex-specific differences in personality, reflecting drivers related to reproductive roles and investment. Overall, our findings emphasize that animal personality and behavioral syndromes in ground beetles are not universal species-level properties but emerge from the interaction between intrinsic traits, and sex-specific strategies, underscoring the importance of considering ecological context when interpreting individual-level behavioral variation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
carabids
behavioral tests
traits
consistency
repeatability
exploratory behavior
risk-taking behavior
personality
Megjelenés:Diversity. - 18 : 2 (2026), p. 1-14. -
További szerzők:Mizser Szabolcs (1977-) (biológus-ökológus) Horváth Roland (1974-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Lövei Gábor L. (1954-) (Ökológus)
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5.

001-es BibID:BIBFORM134009
Első szerző:Magura Tibor (ökológus)
Cím:Urbanization-driven changes in litter decomposition in forest patches revealed by the teabag method / Tibor Magura. Roland Horváth, Szabolcs Mizser, Mária Tóth. Gábor L. Lövei
Dátum:2025
ISSN:1083-8155 1573-1642
Megjegyzések:Urbanization, a rapid and powerful component of anthropogenic global change, substantially impacts all levels of biological organization, from individuals to ecosystems. Among regulatory ecosystem services, litter decomposition plays a critical role in soil nutrient supply and the maintenance of properly functioning soil. Urbanization generally negatively affects biodiversity, environmental and habitat characteristics, all of which significantly influence decomposition processes. However, relatively few studies, some with methodological limitations, have assessed the impact of urbanization on the decomposition. To address this gap, we conducted a standardized two-year study to investigate the decomposition of rooibos teabag-litters incubated for 3, 6, 9, and 12 months in soils of forested habitats with similar forest associations, soil types, and histories but with different urbanization level. Decomposition in both the rural and urban habitats was more intense in the first year, characterized by warmer-than-average temperatures and average precipitation, than in the second one year, with average temperatures and below-average precipitation. Decomposition was significantly faster in urban forest patches (average 42% mass loss) than in rural forest stands (average 36% mass loss) after 6 months of incubation in both years. This difference is likely attributed to higher soil temperature in urban habitats, which stimulates microbial and enzymatic activity. Faster decomposition in urban habitats can lead to profound effects on ecosystem structure, functions, services, and biodiversity, and even can release stored carbon back into the atmosphere, contributing to global climate change. Therefore, a comprehensive urban habitat management is needed to mitigate these negative effects.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
decay
labile fraction
lowland oak forests
organic matter
rooibos litter
urban management
Megjelenés:Urban Ecosystems. - 29 : 1 (2026). -
További szerzők:Horváth Roland (1974-) (biológus-ökológus) Mizser Szabolcs (1977-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Lövei Gábor L. (1954-) (Ökológus)
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6.

001-es BibID:BIBFORM129497
Első szerző:Magura Tibor (ökológus)
Cím:Differences in Morphology of Rural vs. Urban Individuals of the Flightless Ground Beetle, Carabus convexus / Tibor Magura, Roland Horváth, Szabolcs Mizser, Mária Tóth, Gábor L. Lövei
Dátum:2025
ISSN:2075-4450
Megjegyzések:Urbanization causes significant environmental and structural changes in habitats, one of them being increased fragmentation. Traits associated with increased locomotory capacity may be advantageous in such situations, as individuals with those traits may expand their home range or have a chance to escape the patch where conditions threaten their survival. Individuals of the forest specialist, flightless ground beetle Carabus convexus in urban habitats may respond to urbanization by increasing their locomotory capacity (increased muscle mass) with respect to their conspecifics in rural habitats. In order to test this hypothesis, morphological traits standardized for body size were assessed using linear mixed-effects models. Pronotum volume (as a proxy for muscle mass) showed no significant difference between urban and rural individuals. The size of the tibia and femur of the front, middle, and hind legs (a proxy for leg muscle mass) significantly differed between sexes, with males having significantly larger tibiae and femora than females. Furthermore, urban males had significantly larger hind tibiae than rural conspecifics. Sexspecific differences in tibia and femur size is expected because males usually have higher locomotory activity than females. Larger tibiae of urban males can be advantageous to extend their home range, ensuring that males find mating partners even in low-density urban populations.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
adaptation
carabid
dispersal
fragmentation
habitat modification
home range
human disturbance
locomotory capacity
trait
urbanization
Megjelenés:Insects. - 16 : 4 (2025), p. 1-16. -
További szerzők:Horváth Roland (1974-) (biológus-ökológus) Mizser Szabolcs (1977-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Lövei Gábor L. (1954-) (Ökológus)
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7.

001-es BibID:BIBFORM125207
035-os BibID:(Scopus)85207857370 (WoS)001343699800030
Első szerző:Magura Tibor (ökológus)
Cím:Urbanization impoverishes taxonomic but not functional diversity of the gut microbiota in a forest specialist ground beetle, Carabus convexus / Tibor Magura, Tibor, Szabolcs Mizser, Roland Horváth, Mária Tóth,Gábor L. Lövei
Dátum:2024
ISSN:2045-2322
Megjegyzések:Symbiotic microorganisms living in the digestive tracts of invertebrates can be crucial in host-symbiont interactions, as they play fundamental roles in important biological processes. Urbanization-related habitat alteration and disturbance, however, considerably affect the environment of host insects, from which their gut microbiota is derived. Still, relatively few studies, all on flying insects, have assessed the impact of urbanization on the gut microbiota of insects. Here, we compared the gut bacterial microbiota in rural and urban individuals of a flightless ground beetle, Carabus convexus, using next generation sequencing. Across the 48 gut samples we identified 1163 different bacterial operational taxonomic units (OTUs), forming significantly different gut bacterial communities in rural versus urban beetles. The taxonomic diversity of the gut bacterial microbiota expressed by the Hill numbers was significantly higher in rural than urban individuals, as well as in rural males vs. females. Smaller differences were found in functional diversity, assessed by the Rao's quadratic entropy which was marginally significantly higher in urban than rural beetles.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
carabid
digestive tracts
disturbance
microbiome
next generation sequencing
symbionts
Megjelenés:Scientific Reports. - 14 : 1 (2024), p. 1-11. -
További szerzők:Mizser Szabolcs (1977-) (biológus-ökológus) Horváth Roland (1974-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Lövei Gábor L. (1954-) (Ökológus)
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8.

001-es BibID:BIBFORM123324
035-os BibID:(Scopus)85202641647 (WoS)001306727500001
Első szerző:Magura Tibor (ökológus)
Cím:Gut Bacterial Communities in the Ground Beetle Carabus convexus / Tibor Magura, Szabolcs Mizser, Roland Horváth, Mária Tóth, Ferenc Sándor Kozma, János Kádas, Gábor L. Lövei
Dátum:2024
ISSN:2075-4450
Megjegyzések:Biological interactions, including symbiotic ones, have vital roles in ecological and evolutionary processes. Microbial symbionts in the intestinal tracts, known as the gut microbiome, are especially important because they can fundamentally influence the life history, fitness, and competitiveness of their hosts. Studies on the gut-resident microorganisms of wild animals focus mainly on vertebrates, and studies on species-rich invertebrate taxa, such as ground beetles, are sparse. In fact, even among the species-rich genus Carabus, only the gut microbiome of two Asian species was studied, while results on European species are completely missing. Here, we investigated the gut bacterial microbiome of a widespread European Carabus species, targeting the V3 and V4 regions of the 16S ribosomal RNA genes by next-generation high-throughput sequencing. We identified 1138 different operational taxonomic units assigned to 21 bacterial phyla, 90 families, and 197 genera. Members of the carbohydrate-degrading Prevotellaceae family, previously not detected in ground beetles, were the most abundant in the gut microbiome of the carnivorous C. convexus. Presumably, individuals from the studied wild populations also consume plant materials, especially fruits, and these carbohydrate-degrading bacterial symbionts can facilitate both the consumption and the digestion of these supplementary foods.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
carabid
digestive tract
intestinal tract
microbiome
microorganisms
mutualism
operational taxonomic units
predators
symbionts
Megjelenés:Insects. - 15 : 8 (2024), p. 1-13. -
További szerzők:Mizser Szabolcs (1977-) (biológus-ökológus) Horváth Roland (1974-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Kozma Ferenc Sándor Kádas János (1976-) (molekuláris biológus, biokémikus, kertészmérnök) Lövei Gábor L. (1954-) (Ökológus)
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9.

001-es BibID:BIBFORM117897
035-os BibID:(Scopus)85182225631 (WoS)001141770200001
Első szerző:Magura Tibor (ökológus)
Cím:Urbanization reduces gut bacterial microbiome diversity in a specialist ground beetle, Carabus convexus / Tibor Magura, Szabolcs Mizser, Roland Horváth, Mária Tóth, István Likó, Gábor Lövei
Dátum:2024
ISSN:0962-1083
Megjegyzések:Urbanization is rapidly shaping and transforming natural environments, creating networks of modified land types. These urbanization-driven modifications lead to local extinctions of several species, but the surviving ones also face numerous novel selection pressures, including exposure to pollutants, habitat alteration, and shifts in food availability and diversity. Based on the assumption that the environmental pool of microorganisms is reduced in urban habitats due to habitat alteration, biodiversity loss, and pollution, we hypothesized that the diversity of bacterial microbiome in digestive tracts of arthropods would be lower in urban than rural habitats. Investigating the gut bacterial communities of a specialist ground beetle, Carabus convexus, in forested rural versus urban habitats by next generation high-throughput sequencing of the bacterial 16S rRNA gene, we identified 3839 bacterial amplicon sequence variants. The composition of gut bacterial samples did not significantly differ by habitat (rural vs. urban), sex (female vs. male), sampling date (early vs. late spring), or their interaction. The microbiome diversity (evaluated by the Rényi diversity function), however, was higher in rural than urban adults. Our findings demonstrate that urbanization significantly reduced the diversity of the gut bacterial microbiome in C. convexus.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
carabid
habitat alteration
microorganisms
next generation sequencing
rural
urban
Megjelenés:Molecular Ecology. - 33 : 4 (2024), p. -
További szerzők:Mizser Szabolcs (1977-) (biológus-ökológus) Horváth Roland (1974-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Likó István Lövei Gábor L. (1954-) (Ökológus)
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10.

001-es BibID:BIBFORM103391
035-os BibID:(WoS)000845623800001 (Scopus)85137605742
Első szerző:Magura Tibor (ökológus)
Cím:Urban individuals of three rove beetle species are not more exploratory or risk-taking than rural conspecifics / Tibor Magura, Roland Horváth, Szabolcs Mizser, Mária Tóth, Dávid D. Nagy, Réka Csicsek, Emőke Balla, Gábor L. Lövei
Dátum:2022
ISSN:2075-4450
Megjegyzések:Urbanization is creating changes in environmental and habitat conditions, as well as creating disturbance and threats to urban-associated species. Some traits, such as high exploratory and risk-taking behavior, are beneficial to allow colonization of urban habitats and coping with urbanization-derived pressures. In this study the exploratory and risk-taking behavior of rural and urban individuals of three forest-associated rove beetle species were tested during their main reproductive period by five frequently used behavioral measures. Individuals of all studied species were similarly ranked by all behavioral measures, indicating that the studied rove beetles responded consistently in the different contexts. However, the behavior of beetles was consistent over time for all/most studied species only by using two measures of exploratory behavior. These provide evidence for the existence of the exploratory dimension of personality in rove beetles. We found a higher exploratory behavior in males than females in Ocypus nitens which can be explained by the active searching of males for mating partners. There were no urbanization-related differences in the exploratory behavior of individuals, suggesting that behavioral changes (being more exploratory) may not yield additional fitness benefits in these rove beetle species with good dispersal capacity.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
staphylinids
urbanization
exploratory behavior
risk-taking behavior
human disturbance
Megjelenés:Insects. - 13 : 8 (2022), p. 1-13. -
További szerzők:Horváth Roland (1974-) (biológus-ökológus) Mizser Szabolcs (1977-) (biológus-ökológus) Tóth Mária (1985-) (biológus) Nagy Dávid (1986-) (biológus-ökológus) Csicsek Réka (1994-) Balla Emőke Lövei Gábor L. (1954-) (Ökológus)
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