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001-es BibID:	BIBFORM001355
Első szerző:	Hornung Erzsébet
Cím:	Changes of isopod assemblages along an urban-suburban-rural gradient in Hungary / Elisabeth Hornung, Béla Tóthmérész, Tibor Magura, Ferenc Vilisics
Dátum:	2007
Megjegyzések:	Responses of isopod assemblages to urbanisation were studied along an urbanesuburbanerural gradient representing a decrease in the intensity of human disturbance. Pitfall trapping collected six species (Armadillidium vulgare, Porcellio scaber, Porcellium collicola, Trachelipus ratzeburgii, Cylisticus convexus, and Trachelipus rathkii). A. vulgare occurred abundantly in all sites reflecting the broad tolerance and invasive nature of this species. Indicator species analysis demonstrated that P. scaber and T. rathkii were significant quantitative character species for the urban site, while T. ratzeburgii was characteristic for the natural habitats (suburban and rural sites). CANOCO revealed that ground and air temperature show positive correlation with the distribution of P. scaber and T. rathkii, and negative correlation with T. ratzeburgii. Nested ANOVA on trap level showed that there were no significant differences between the number of isopod species and individuals, and the diversity of isopod assemblages in the three studied areas. Significant differences were observed at site level. The results did not support the hypothesis that 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. Multivariate methods detected that the isopod assemblages of the rural and suburban areas were relatively similar, while that of the urban area was relatively separated.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Oniscidea Globenet Increased disturbance hypothesis Intermediate disturbance hypothesis Species richness Diversity Urbanisation
Megjelenés:	European Journal of Soil Biology. - 43 (2007), p. 158-165. -
További szerzők:	Magura Tibor (1969-) (ökológus) Vilisics Ferenc Tóthmérész Béla (1960-) (ökológus)
Internet cím:	elektronikus változat
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001-es BibID:	BIBFORM085869
Első szerző:	Magura Tibor (ökológus)
Cím:	Impacts of non-native spruce reforestation on ground beetles / Magura Tibor, Elek Zoltán, Tóthmérész Béla
Dátum:	2002
ISSN:	1164-5563
Megjegyzések:	Impacts of non-native spruce reforestation on ground beetles were studied. Pitfall catches from recently established (5 years), young (15 years), middle-aged (30 years), old spruce plantation (50 years) and a native beech forest (70 years) were compared. Results indicate that the soil temperature, the pH, the compactness and the CaCO3 content of the soil, the cover of the leaf litter and the herbs and the abundance of the carabids'preys are the most important factors determining the spatial pattern of ground beetles. Deciduous forest specialist species decreased signi?cantly in abundance in the non-native spruce plantations, and they were abundant only in the native beech forest. Ground beetles that overwinter as larvae and the medium and large beetles were also signi?cantly more abundant in the deciduous forest than in the reforested habitats indicating that the environmental regimes are more even and stable in the deciduous forest than in the plantations. Species typical of open habitats, winged and small beetles increased remarkably in abundance in the recently established plantation. They disappeared or declined in density after closure of the canopy layer suggesting the colonization of new habitats and the process of the secondary succession after reforestation.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Ground beetles Spruce reforestation Environmental variables Indicator species analysis
Megjelenés:	European Journal of Soil Biology. - 38 : 3-4 (2002), p. 291-295. -
További szerzők:	Elek Z. Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:	T25888 OTKA T32130 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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