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001-es BibID:	BIBFORM056520
Első szerző:	Örvössy Noémi (ökológus)
Cím:	Potential metapopulation structure and the effects of habitat quality on population size of the endangered False Ringlet butterfly / Örvössy Noémi, Kőrösi Ádám, Batáry Péter, Vozár Ágnes, Peregovits László
Dátum:	2013
ISSN:	1366-638X 1572-9753
Megjegyzések:	The False Ringlet (Coenonympha oedippus) is a European butterfly species, endangered due to the severe loss and fragmentation of its habitat. In Hungary, two remaining populations of the butterfly occur in lowland Purple Moorgrass meadows. We studied a metapopulation occupying twelve habitat patches in Central Hungary. Our aim was to reveal what measures of habitat quality affect population size and density of this metapopulation, estimate dispersal parameters and describe phenology of subpopulations. Local population sizes and dispersal parameters were estimated from an extensive mark?release?recapture dataset, while habitat quality was characterized by groundwater level, cover of grass tussocks, bush cover, height of vegetation and grass litter at each habitat patch. The estimated size of the metapopulation was more than 3,000 individuals. We estimated a low dispersal capacity, especially for females, indicating a very low probability of (re)colonization. Butterfly abundance and density in local populations increased with higher grass litter, lower groundwater level and larger area covered by tussocks. We suppose that these environmental factors affect butterfly abundance by determining the microclimatic conditions for both larvae and adult butterflies. Our results suggest that the long-term preservation of the studied metapopulation needs the maintenance of high quality habitat patches by appropriate mowing regime and water regulation. Management also should facilitate dispersal to strengthen metapopulation structure with creating stepping-stones or gradually increase habitat quality in present matrix.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Coenonympha oedippus Dispersal Habitat management Mark-recapture Population size Purple Moorgrass meadow
Megjelenés:	Journal of Insect Conservation. - 17 : 3 (2013), p. 537-547. -
További szerzők:	Kőrösi Ádám Batáry Péter Vozár Ágnes Peregovits László
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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