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1.

001-es BibID:BIBFORM056523
035-os BibID:(WoS)000262993500003 (Scopus)56849119296
Első szerző:Batáry Péter
Cím:Egg distribution of the southern festoon (Zerynthia polyxena) (Lepidoptera, Papilionidae) / Batáry Péter, Örvössy Noémi, Kőrösi Ádám, Peregovits László
Dátum:2008
ISSN:1217-8837
Megjegyzések:We investigated environmental factors grouped along hierarchical spatial scales influencing the egg density of a monophagous papilionid, the southern festoon (Zerynthia polyxena) on its food-plant, the birthwort (Aristolochia clematitis). Two patch level variables were considered:habitat type (black locust plantation, clearing and hummock) and food-plant patch size. We measured several plant variables at the egg-bearing shoots. We counted the number and measured the mean height of birthworts within the microenvironment of the egg-bearing shoots.We also measured the height and counted the leaves of each egg-bearing shoot itself. Plant apparency was defined as the height difference between egg-bearing shoots and the surrounding ones. Two variables were measured on the egg-bearing shoots (hence at food-plant scale):number of leaves and position of eggs on the leaf-storeys. Habitat type affected the distribution of eggs; black locust plantations and hummocks were preferred against clearings. At a smaller scale, neither shoot density, nor food-plant apparency affected egg distribution. At theplant level, the number of eggs increased with the number of leaves, and the position of eggs also co-varied with egg density, having fewer eggs in clusters positioned higher on shoots. We conclude that spatially correlated data on butterfly egg distribution should be analysed consideringthe intrinsically hierarchical structure of environmental factors.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Zerynthia polyxena
oviposition
plant-insect interaction
Aristolochia clematitis
food-plant
spatial scale
Megjelenés:Acta Zoologica Academiae Scientiarum Hungaricae. - 54 : 4 (2008), p. 401-410. -
További szerzők:Örvössy Noémi (1979-) (ökológus) Kőrösi Ádám Peregovits László
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2.

001-es BibID:BIBFORM056522
Első szerző:Batáry Péter
Cím:Species-specific distribution of two sympatric Maculinea butterflies across different meadow edges / Batáry Péter, Kőrösi Ádám, Örvössy Noémi, Kövér Szilvia, Peregovits László
Dátum:2009
ISSN:1366-638X 1572-9753
Megjegyzések:An important consequence of habitat fragmentation is the increase of edge habitats. Environmental factors in the edges are different from those in the interiors, which causes changes in the distribution of plant and animalspecies. We aimed to study how edges affect the distribution of two butterfly species within meadow fragments. We therefore investigated the effect of distancefrom edge and edge type (road edge versus tree edge) ontwo sympatric large blue species (Maculinea teleius andM. nausithous). Our results showed that edge type hadcontrasting effects on the two species. M. teleius favouredboth interiors and road edges, while M. nausithous preferredthe tree edges. In the case of the latter species astrong positive edge effect was also found. This kind ofwithin-habitat niche segregation is probably related to thedifferent microenvironmental conditions at the edges.Foodplant density did not seem to limit the distribution ofthese species. Our results suggest that interiors of meadowsare important for M. teleius, while tree edges maintain thehabitats of the regionally rarer butterfly, M. nausithous.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Edge effect
Foodplant
Habitat use
Myrmecophily
Niche segregation
Megjelenés:Journal of Insect Conservation. - 13 : 2 (2009), p. 223-230. -
További szerzők:Kőrösi Ádám Örvössy Noémi (1979-) (ökológus) Kövér Szilvia Peregovits László
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3.

001-es BibID:BIBFORM056526
Első szerző:Batáry Péter
Cím:Microhabitat preferences of Maculinea teleius (Lepidoptera: Lycaenidae) in a mosaic landscape / Batáry Péter, Örvössy Noémi, Kőrösi Ádám, Vályi Nagy Marianna, Peregovits László
Dátum:2007
ISSN:1210-5759 1802-8829
Megjegyzések:The Scarce Large Blue (Maculinea teleius) is an endangered butterfly throughout Europe due to its special life-cycle and habitat loss. Our aims were to describe the microhabitats available to this butterfly, to test what factors influence the presence and density of M. teleius adults and to investigate the relationship between host ant species and M. teleius. The vicinities of eight fenswere sampled, where there are four types of microhabitats available for this butterfly: Narrowleaf Cattail (Typha angustifolia), Purple Loosestrife (Lythrum salicaria), Marsh Woundwort (Stachys palustris) and Purple Moorgrass (Molinia coerulea) dominated vegetation. In five transects (50 ? 5 m) around each fen (running from the edge of the fen into the meadows) the number of imagos was counted twice a day during the flight period. Along the transects, the following parameters were measured or assessed: numberof flowerheads of foodplant (Sanguisorba officinalis), microhabitat type, grazing intensity, soil humidity, vegetation height and host ant presence. The four microhabitat types differed significantly in soil humidity, vegetation height, foodplant density and distancefrom a fen. Generally the Typha microhabitat, situated closest to fens, had the highest soil humidity and vegetation height, followed by the Lythrum, Stachys and finally the Molinia microhabitat along a gradient decreasing soil humidity and vegetation height. Thefoodplant was most abundant in the Lythrum and Stachys microhabitats. Using linear mixed models and forward stepwise manual selection we found that microhabitat type was the most important factor determining the presence of M. teleius. The local grazing intensity had no direct effect but flowerheads of the foodplant had a positive effect on the abundance of butterflies. The number ofbutterflies was significantly higher in quadrats where the host ant (Myrmica scabrinodis) was present compared to those where they were absent. Our results suggest that grazing should be continued in order to maintain the current distribution of microhabitats andsurvival of the butterflies.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
Lycaenidae
Maculinea teleius
microhabitat
habitat use
foodplant
host ant
grazing
wet meadow
Megjelenés:European Journal Of Entomology. - 104 (2007), p. 731-736. -
További szerzők:Örvössy Noémi (1979-) (ökológus) Kőrösi Ádám Vályi Nagy Marianna Peregovits László
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4.

001-es BibID:BIBFORM056525
Első szerző:Kőrösi Ádám
Cím:Restricted within-habitat movement and time-constrained egg laying of female Maculinea rebeli butterflies / Kőrösi Ádám, Örvössy Noémi, Batáry Péter, Kövér Szilvia, Peregovits László
Dátum:2008
ISSN:0029-8549 1432-1939
Megjegyzések:The movement of butterflies within habitatpatches is usually assumed to be random, although fewstudies have shown this unambiguously. In the case of thehighly specialized genus Maculinea, two contradictoryhypotheses exist to explain the movement and distributionof imagos within patches: (1) due to the high spatial variance of survival rates among caterpillars, the ♭♭riskspreading'' hypothesis predicts that females will tend to make linear flight paths in order to maximize their net displacement and scatter the eggs as widely as possible;and (2) recent mark?release?recapture (MRR) data suggestthat within-habitat displacement of some Maculinea speciesis constrained and that adults may establish homeranges. We tested both hypothesis by analysing themovement pattern of individuals. We also investigatedwhether egg laying is time constrained, which wouldenhance the trade-off between flying and egg laying. Thirtyfemales of Maculinea rebeli (Lepidoptera: Lycaenidae)were tracked within a single population in Central Hungary.Their egg-laying behaviour and individual patterns ofmovement were recorded, and the latter were comparedwith random walk model predictions. The population wasalso sampled by MRR to estimate survival rates, and fournon-mated, freshly eclosed females were dissected toassess their potential egg load. Net squared displacement offemales was significantly lower than predicted by therandom walk model and declined continuously after the15th move. The ratio of net displacement and cumulativemove length decreased with the number of moves, supportingthe hypothesis that Maculinea butterflies establishhome ranges. We found that low survival and a low rate ofegg laying prevented females from laying their potentialnumber of eggs within their lifespan. Time limitationincreased the cost of movement, providing another possibleexplanation for the restricted movement of females.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Home range
Myrmecophily
Oviposition
Random walk model
Risk spreading
Megjelenés:Oecologia. - 156 : 2 (2008), p. 455-464. -
További szerzők:Örvössy Noémi (1979-) (ökológus) Batáry Péter Kövér Szilvia Peregovits László
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5.

001-es BibID:BIBFORM056521
Első szerző:Kőrösi Ádám
Cím:Different habitat selection by two sympatric Maculinea butterflies at small spatial scale / Kőrösi Ádám, Örvössy Noémi, Batáry Péter, Harnos Andrea, Peregovits László
Dátum:2012
ISSN:1752-458X
Megjegyzések:1. Worldwide extinction of species due to habitat loss and habitat degradation can be recognised among butterflies pronouncedly. Therefore, conservation biologists devote special attention to identify the most important ecological factors affecting distribution and survival of butterflies. These efforts have been dominated by landscape-scale studies, although variation in habitat quality at smaller spatial scales may be of crucial importance. This applies for the highly specialised Maculinea species, which usually do not form classic metapopulations.2. Maculinea nausithous and Maculinea teleius use the same larval food plant and usually occupy the same habitats in Europe. Afforestation of meadows due to abandonment is a major threat for these species. However, few if any studies have assessed the effects that proximity of forest edges may have on the habitat selection by adult butterflies at the scale of local populations. Here, we aimed to test theseeffects within one habitat fragment based on an intensive mark?release?recapture sampling.3. Distribution of M. nausithous was aggregated and its density was highly positively influenced by the proportion of afforested meadow edges, while M. teleius showed no preference for afforested edges. Despite their different within-habitat distribution, the movement of both species was restricted to smaller parts of the habitat.4. Our results suggest that M. nausithous has a narrower niche in the study region, which is most likely due to that its only host ant can find suitable microclimatic conditionsat the afforested edges of wet meadows. This implies that habitat patches are not equally used by the two species and hence different management approaches are desirable for their conservation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Forest edges
grassland management
local adaptation
Maculinea nausithous
Maculinea teleius
myrmecophily
Myrmica ants
niche overlap
Megjelenés:Insect Conservation and Diversity. - 5 : 2 (2012), p. 118-126. -
További szerzők:Örvössy Noémi (1979-) (ökológus) Batáry Péter Harnos Andrea Peregovits László
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6.

001-es BibID:BIBFORM056528
Első szerző:Kőrösi Ádám
Cím:A kaszálás hatásának vizsgálata a vérfű hangyaboglárka (Maculinea teleius) populációira : egy kezelési kísérlet első tapasztalatai / Kőrösi Ádám, Szentirmai István, Örvössy Noémi, Kövér Szilvia, Batáry Péter, Peregovits László
Dátum:2009
ISSN:1216-4585
Megjegyzések:A hangyákhoz kötődő, szociális parazita életmódjukról ismert hangyaboglárkák (Maculinea spp.) megkülönböztetett figyelemmel bírnak az európai természetvédelemben, így élőhelyeik megőrzésére hazánkban is nagy hangsúlyt kell fektetni. A nedves gyepterületeken élő vérfű hangyaboglárka élőhelykezelésének tudományos megalapozására 2007-ben egy hosszú távú kísérletbe kezdtünk az Őrségi NP területén. Az eltérő kaszálási módok hatásának vizsgálatára a Szentgyörgyvölgyi-patak mentén 4 réten jelöltünk ki 4?4 kezelési sávot, melyekben az alábbi kezeléseket folytatjuk: májusi, szeptemberi, májusi és szeptemberi kaszálás, illetve kaszálás nélküli kontroll. A kezelési sávokon belül kialakított kvadrátokban minden évben elvégezzük a tápnövény (Sanguisorba officinalis), a gazda hangyafajok (Myrmica spp.) és a hangyaboglárka imágók mennyiségének felmérését. A kaszálás hatása az egyes réteken hasonló volt, a köztük lévő cönológiai és kezeléstörténeti különbségek ellenére: az intenzívebben kaszált részeken nagyobb volt a lepkék és tápnövényük denzitása, a kevésbé kaszált területeken pedig a gazda hangyák gyakorisága volt magasabb. Ez utóbbi területek refúgiumként szolgálhatnak a hangyák számára, melyek biztosítása a hangyaboglárka fennmaradása szempontjából elsődleges, és csak mozaikos kezeléssel valósítható meg.
Tárgyszavak:Természettudományok Biológiai tudományok magyar nyelvű folyóiratközlemény hazai lapban
biodiverzitás
gyepkezelés
hangyagazda
kaszálás
mirmekofília
Myrmica
szociális parazitizmus
tápnövény
Megjelenés:Természetvédelmi Közlemények. - 15 (2009), p. 257-268. -
További szerzők:Szentirmai István Örvössy Noémi (1979-) (ökológus) Kövér Szilvia Batáry Péter Peregovits László
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7.

001-es BibID:BIBFORM056518
Első szerző:Kőrösi Ádám
Cím:Effects of timing and frequency of mowing on the threatened scarce large blue butterfly : a fine-scale experiment / Kőrösi Ádám, Szentirmai István, Batáry Péter, Kövér Szilvia, Örvössy Noémi, Peregovits László
Dátum:2014
ISSN:0167-8809
Megjegyzések:As part of a major transformation of the EU agriculture in the last few decades, traditional land-use typesdisappeared due to either intensification or abandonment. Grasslands are highly affected in this processand are consequently among the most threatened semi-natural habitats in Europe. However,experimental evidence is scarce on the effects of management types on biodiversity. Moreover,management types need to be feasible within the recently changed socio-economic circumstances inHungary. We investigated the effects of timing and frequency of mowing on the abundance of the scarcelarge blue butterfly (Phengaris teleius), on the abundance of its host plant and on the frequency of its hostant species. In each of four study meadows, we applied four types of management: one cut per year inMay, one cut per year in September, two cuts per year (May and September) and cessation ofmanagement. After three years of experimental management, we found that adult butterflies preferredplots cut once in September over plots cut twice per year and abandoned ones, while plots cut once inMay were also preferred over abandoned plots. Relative host plant abundance remarkably increased inplots cut once in September. Management did not affect the occupancy pattern of Myrmica host ants.Invasive goldenrod was successfully retained by two cuts per year. To our knowledge, this is thefirstattempt to test management effects on the whole community module of a socially parasitic butterfly, itshost plant and host ants. Based on the results, we provide recommendations on regional management ofthe scarce large blue's habitats.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Abandonment
Central Europe Grasslands
Habitat management
Traditional land-use
Megjelenés:Agriculture, Ecosystems and Environment. - 196 (2014), p. 24-33. -
További szerzők:Szentirmai István Batáry Péter Kövér Szilvia Örvössy Noémi (1979-) (ökológus) Peregovits László
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8.

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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9.

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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10.

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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