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001-es BibID:	BIBFORM010636
Első szerző:	Magura Tibor (ökológus)
Cím:	Changes of ground beetle and isopod assemblages along an urbanisation gradient in Hungary / Tibor Magura, Elisabeth Hornung, Béla Tóthmérész
Dátum:	2009
Megjegyzések:	We investigated the effects of urbanisation on ground beetles (Coleoptera: Carabidae) and terrestrial isopods (Isopoda: Oniscidea) along an urban-suburban-rural gradient representing decreasing human alteration, as part of the international GLOBENET project. Ground beetles and isopods were collected by pitfall traps during their activity period in lowland oak forest patches in and around the city of Debrecen, Eastern Hungary. Overall species richness of the ground beetles was significantly higher in the rural and urban areas compared to the suburban area. We found no significant differences in the overall species richness of isopods along the gradient. These results did not support either the increased disturbance hypothesis (overall diversity decreases at higher levels of alteration/disturbance), or the intermediate disturbance hypothesis (diversity increases at intermediate levels of alteration/disturbance). The species richness of forest specialist ground beetles significantly increased along the urban-rural gradient. Species richness of forest specialist isopods was significantly higher in suburban and rural areas compared to the urban area. These results support the prediction of the habitat specialist hypothesis according to which diversity of forest specialist species increases along a gradient from area of high modification (urban) to area of low alteration (rural). To conclude, we found a significant effect of urbanisation on the composition of studied invertebrate assemblages. Moreover, our findings showed that overall diversity is not the most appropriate indicator of disturbance. Therefore, species with different habitat affinity should be analysed separately to evaluate the real effect of urbanisation.
Tárgyszavak:	Természettudományok Környezettudományok könyvfejezet GLOBENET Habitat specialist hypothesis Increased disturbance hypothesis Intermediate disturbance hypothesis Species richness
Megjelenés:	Contributions to Soil Zoology in Central Europe III / Tajovský, K., Schlaghamerský, J., Pižl, V. (eds.). - p. 97-101. -
További szerzők:	Hornung Erzsébet Tóthmérész Béla (1960-) (ökológus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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