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001-es BibID:BIBFORM056524
Első szerző:Örvössy Noémi (ökológus)
Cím:Structure and size of a threatened population of the False Ringlet Coenonympha oedippus (FABRICIUS, 1787) (Lepidoptera: Nymphalidae) in Hungary / Örvössy Noémi, Vozár Ágnes, Kőrösi Ádám, Batáry Péter, Peregovits László
Dátum:2010
ISSN:1436-5804 1314-2682
Megjegyzések:Butterflies react sensitively to changes in habitat quality.Their diversity has been decreasing in Europe due to habitatdegradation, fragmentation, management changes and climatechange. The False Ringlet (Coenonympha oedippus) is oneof the 59 butterfl y species protected in Hungary. The species occupies marshy meadows dominated by Molinietum vegetation. Besides drainage, inappropriate management can also deteriorate these habitats. Nowadays the butterfl y remains present in a habitat complex in Hungary, at the north-western part of the Hungarian Great Plain and a newly (2009) rediscovered population in north-western Hungary. Mark?release?recapture method was used to estimate the population size and describe population structure in a 0.65 ha habitat patch from 2005 to 2007. The population size did not fluctuate during the 3 years; the total estimated number of individuals ranged between 130 and 270. The survival probability was 0.81?0.84/day in the case of males, in females 0.70?0.89/day. The catchability was between 0.27?0.53 in males and 0.22?0.38 in females. The structure of the population indicates that the False Ringlet is a sedentary butterfly species, with low dispersal ability. In the study area, drainageseems to be the main threatening factor for its habitat.The studied population has recently moved to neighbouringlower parts of the habitat patch, because the formerly occupied part of the habitat patch had been desiccated and the vegetation had been changed. For the long-term survival of the species at this habitat patch the drainage should be inhibited, while in other habitat patches around, the control of invasive plant species is inevitable beside habitat restoration.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
False Ringlet
Coenonympha oedippus
Hungary
MRR
population size
Megjelenés:Oedippus. - 26 (2010), p. 31-37. -
További szerzők:Vozár Ágnes Kőrösi Ádám Batáry Péter Peregovits László
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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
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3.

001-es BibID:BIBFORM056516
035-os BibID:(WoS)000345426200006 (Scopus)84918562907
Első szerző:Örvössy Noémi (ökológus)
Cím:Habitat requirements of the protected Southern Festoon (Zerynthia polyxena); adult, egg and larval distribution in a highly degraded habitat complex / Örvössy Noémi, Kőrösi Ádám, Batáry Péter, Vozár Ágnes, Peregovits László
Dátum:2014
ISSN:1217-8837
Megjegyzések:Habitat quality affects the presence and size of butterfly populations. Resources for all lifestages must be found in a given or few habitat patches. Southern festoon (Zerynthia polyxena)is a vulnerable, but locally abundant species in Hungary. The larva requires birthwort(Aristolochia clematitis) as food plant. We examined the small scale habitat use of adultsand distribution of eggs and larvae among different vegetation types to reveal the requirementsof the species in all life stages. Transect counts were conducted in a tree plantationcomplex comprising four types of vegetation. Number (±SE) of adults, eggs and larvaewere lowest in poplar plantation (adult 0.3±0.2, egg 1.1±1.1, larva 0.6±0.3). Medium amountof butterflies were observed in open (adult 8.3±2.9, egg 3.1±2.6, larva 3.1±1.9) and blacklocust(adult 9.4±4.2, egg 12.7±4.9, larva 4.1±1.1) habitat. Number of butterflies was highestin hummocks (adult 13.5±1.5, egg 12.9±5.7, larva 8.4±2.1). Adults avoided bare ground. Weencountered most eggs in dense food plant patches with high plants. Food plant heightalso positively influenced the occurrence of the larvae. Although distribution of adultsand juvenile forms showed quite similar patterns, we could also reveal some differencesthat caused by different environmental conditions in distinct vegetation types. Our studystresses the importance of habitat quality, which affects population size of butterflies evenin a highly degraded habitat complex.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
habitat use
habitat quality
habitat patch
life stage
resourceuse
tree plantations
Megjelenés:Acta Zoologica Academiae Scientiarum Hungaricae. - 60 : 4 (2014), p. 371-387. -
További szerzők:Kőrösi Ádám Batáry Péter Vozár Ágnes Peregovits László
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