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001-es BibID:BIBFORM095116
035-os BibID:(cikkazonosító)540
Első szerző:Magura Tibor (ökológus)
Cím:Differences in life history traits in rural vs. urban populations of a specialist ground beetle, Carabus convexus / Tibor Magura, Szabolcs Mizser, Roland Horváth, Dávid D. Nagy, Mária Tóth, Réka Csicsek, Gábor L. Lövei
Dátum:2021
ISSN:2075-4450
Megjegyzések:Urbanization is increasing worldwide and causes substantial changes in environmental parameters, generating various kinds of stress on arthropods, with several harmful consequences. We examined a forest specialist ground beetle, Carabus convexus, in forested habitats to evaluate the changes in four important life history traits between rural and urban populations. Analyzing beetles from the overwintered cohort in their first breeding season, we found no significant differences in body length or body mass between the rural and urban individuals. Body condition, judged by fat reserve scores, was similarly poor in both habitats, indicating that beetles were not able to accumulate substantial fat reserves at either habitat. Females with ripe eggs in their ovaries were first captured at the same time in both areas. The number of ripe eggs, however, was significantly higher in females of the low-density urban population (6.13 eggs/female) than in those of the high-density rural population (4.14 eggs/female), indicating density-dependent fecundity. Altered environmental and habitat conditions by urbanization, however, seemed to cause high mortality during egg hatching and/or larval development, preventing the growth of the urban population to the level of rural one.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
environmental stress
carabid
body length
body mass
body condition
eggs
densitydependent fecundity
Megjelenés:Insects. - 12 : 6 (2021), p. 1-11. -
További szerzők:Mizser Szabolcs (1977-) (biológus-ökológus) Horváth Roland (1974-) (biológus-ökológus) Nagy Dávid (1986-) (biológus-ökológus) Tóth Mária Csicsek Réka (1994-) Lövei Gábor L.
Pályázati támogatás:K131459
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