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1.

001-es BibID:BIBFORM081477
Első szerző:Argüelles Ticó, Araceli
Cím:Geographic variation in breeding system and environment predicts melanin-based plumage ornamentation of male and female Kentish plovers / Araceli Argüelles-Ticó, Clemens Küpper, Robert N. Kelsh, Kosztolányi András, Székely Tamás, René E. van Dijk
Dátum:2016
ISSN:0340-5443
Megjegyzések:Sexual selection determines the elaboration of morphological and behavioural traits and thus drives the evolution of phenotypes. Sexual selection on males and females can differ between populations, especially when populations exhibit different breeding systems. A substantial body of literature describes how breeding systems shape ornamentation across species, with a strong emphasis on male ornamentation and female preference. However, whether breeding system predicts ornamentation within species and whether similar mechanisms as in males also shape the phenotype of females remains unclear. Here, we investigate how different breeding systems are associated with male and female ornamentation in five geographically distinct populations of Kentish plovers Charadrius alexandrinus. We predicted that polygamous populations would exhibit more elaborate ornaments and stronger sexual dimorphism than monogamous populations. By estimating the size and intensity of male (n?=?162) and female (n?=?174) melanin-based plumage ornaments, i.e. breast bands and ear coverts, we show that plumage ornamentation is predicted by breeding system in both sexes. A difference in especially male ornamentation between polygamous (darker and smaller ornaments) and monogamous (lighter and larger) populations causes the greatest sexual dimorphism to be associated with polygamy. The non-social environment, however, may also influence the degree of ornamentation, for instance through availability of food. We found that, in addition to breeding system, a key environmental parameter, rainfall, predicted a seasonal change of ornamentation in a sex-specific manner. Our results emphasise that to understand the phenotype of animals, it is important to consider both natural and sexual selection acting on both males and females.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Ornamentation
Sexual selection
Breeding system
Kentish plover
Melanin
Megjelenés:Behavioral Ecology And Sociobiology. - 70 : 1 (2016), p. 49-60. -
További szerzők:Küpper, Clemens Kelsh, Robert N. Kosztolányi András (1971-) (biológus) Székely Tamás (1959-) (biológus) van Dijk, René E.
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2.

001-es BibID:BIBFORM049459
Első szerző:Bán Miklós (biológus)
Cím:Simultaneous viewing of own and parasitic eggs is not required for egg rejection by a cuckoo host / Miklós Bán, Csaba Moskát, Zoltán Barta, Márk E. Haube
Dátum:2013
ISSN:1045-2249
Megjegyzések:Many hosts have evolved diverse cognitive mechanism to recognize and reduce the cost of social parasitism. For example, great reed warblers Acrocephalus arundinaceus can accurately reject closely mimetic eggs of brood parasitic common cuckoos Cuculus canorus. Yet, these same hosts are less effective at identifying and rejecting parasitism when the clutch is parasitized by multiple cuckoo eggs, suggesting a role for discordancy (the rejection of the egg type in the minority of the clutch) and/or online self-referent phenotype matching (the simultaneous viewing of cuckoo and own egg in the nest) to reject foreign egg. We tested whether the presence of host's own eggs is required for the discrimination of foreign eggs by dyeing hosts' own eggs with one of several colors so that clutches contained (a) 1 dyed and 4 unmanipulated eggs, (b) 3 dyed and 2 unmanipulated eggs, or 5 eggs dyed either (c1) differently or (c2) similarly. Rejection rates of dyed eggs varied widely between different colors and were highest in treatment (a), with 1 dyed egg, compared with treatments with the majority (b) or all (c1 and c2) dyed eggs. However, relative rejection rates of dyed eggs were also consistent among specific colors across treatments, including (c1) and (c2), where no unmanipulated own eggs were available for viewing and irrespectiveof whether eggs were dyed all different colors (c1) or the same colors (c2). We conclude that these hosts can rely on comparisons of foreign egg colors against an internal recognition template of acceptable (own) egy phenotypes.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
brood parasitism
egg recognition
egg rejection
multiple parasitism
phenotype matching
recognition template
Élettudományok - Biológiai tudományok
Megjelenés:Behavioral Ecology. - 24 : 4 (2013), p. 1014-1021. -
További szerzők:Moskát Csaba Barta Zoltán (1967-) (biológus, zoológus) Hauber, Mark E.
Pályázati támogatás:MTA-DE Lendület
MTA
Viselkedésökológiai Kutatócsoport
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3.

001-es BibID:BIBFORM023238
Első szerző:Barta Zoltán (biológus, zoológus)
Cím:Breedingcolonies as information centres : A re-appraisal of information-based hypotheses using the producer-scrounger game / Zoltán Barta, Luc-Alain Giraldeau
Dátum:2001
ISSN:1045-2249
Megjegyzések:One of the most cited hypotheses for the evolutionary advantages of colonial breeding proposes that colonies serve as a place of information exchange about the location of food-the information center hypothesis. Despite its popularity, the hypothesis generated considerable controversy over its predictions and role in the evolution of colonial breeding. As a consequence, the hypothesis still lingers on, despite nzmerous apparent falsifications from both observational and experimental approaches. The controversy has three roots: the unclear casual direction between coloniality and information center, the unrecognized distinction between colonial breeding and colonial roosting, and the use of an implicit group selectionist argument. Here we try to clarify this controversy by applying an ertirely individual selection-based approach, the producer-scrounger game, to the information center hypothesis. Futhermore, we show how other information-based alternatives of the original information center hypothesis ( e.g., local enhancement and recruitment center hypotheses)can be included in a common framework. Our model predicts that individuals relying on information transfer at the colony should be rather common in nature. This prediction is essentially unaltered by the inclusion of either local enhancement or recruitment center.On the other hand, the frequency of leading unknowledgeable individuals (the most accepted sign of information center)is expected to be very low. the model indicates that tests of information-based hypotheses should focus on the expected relative frequency of food-searching fligts rather than the frequency of leading.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Information center
local enhancement
producer-scrounger games
recruitment center
Megjelenés:Behavioral Ecology. - 12 : 2 (2001), p. 121-127. -
További szerzők:Giraldeau, Luc-Alain
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM023392
Első szerző:Barta Zoltán (biológus, zoológus)
Cím:The effect of dominance hierarchy on the use of alternative foraging tactics: a phenotype-limited producing-scrounging game / Zoltán Barta, Luc-Alain Giraldeau
Dátum:1998
Megjegyzések:Group living is thought to be advantageous for animals, though it also creates opportunities for exploitation. Using food discovered by others can be described as a producer-scrounger, frequency-dependent game. In the game, scroungers (parasitic individuals) do better than producers (food finders) when scroungers are rare in the group, but they do worse when scroungers are common. When the individuals' payoffs do not depend on their phenotype (i.e. a symmetric game), this strong negative frequency dependence leads to a mixed stable solution where both alternatives obtain equal payoffs. Here, we address the question of how differences in so- cial status in a dominance hierarchy in?uence the indi- viduals' decision to play producer or scrounger in small foraging groups. We model explicitly the food intake rate of each individual in a dominance-structured for- aging group, then calculate the Nash equilibrium for them. Our model predicts that only strong differences in competitive ability will in?uence the use of producing or scrounging tactics in small foraging groups; dominants will mainly play scrounger and subordinates will mostly use producer. Since the differences in competitive ability of different-ranking individuals likely depend on the economic defendability of food, our model provides a step towards the integration of social foraging and re- source defence theories.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Dominance hierarchy
Game theory
Group foraging
Phenotype limitation
Producer-scrounger
Megjelenés:Behavioral Ecology and Sociobiology. - 42 : 3 (1998), p. 217-223. -
További szerzők:Giraldeau, Luc-Alain
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5.

001-es BibID:bibKLT00005321
Első szerző:Barta Zoltán (biológus, zoológus)
Cím:The optimal shape of avian eggs / Zoltán Barta, Tamás Székely
Dátum:1997
ISSN:0269-8463
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Funcitonal ecology. - 11 : 5 (1997), p. 656-662. -
További szerzők:Székely Tamás (1959-) (biológus)
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6.

001-es BibID:KLTEbibl003093
Első szerző:Barta Zoltán (biológus, zoológus)
Cím:The role of information transfer under different food patterns : a simulation study / Barta Zoltán, Szép Tibor
Dátum:1992
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Behavioural Ecology. - 3 : 4 (1992), p. 318-324. -
További szerzők:Szép Tibor
Internet cím:DOI
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7.

001-es BibID:BIBFORM107552
035-os BibID:(cikkazonosító)834548 (WOS)000778310300001 (Scopus)85127322976
Első szerző:B-Béres Viktória (biológus)
Cím:Flow Intermittence Drives the Benthic Algal Composition, Biodiversity and Diatom-Based Quality of Small Hilly Streams in the Pannonian Ecoregion, Hungary / Viktória B-Béres, Zsuzsanna Kókai, Gábor Várbíró, Gulperizat Mustazhapova, Zoltán Csabai, Bálint Pernecker, Gábor Borics, István Bácsi, Pál Boda
Dátum:2022
ISSN:2296-701X
Megjegyzések:Climate change is putting increasing pressure on flowing waters. Drastic water level fluctuations in rivers or drying up of small and medium-sized streams all contribute to the biodiversity crisis threatening freshwater ecosystems. Benthic diatoms are important elements of biofilm in small streams. However, knowledge on the relationship between benthic diatoms and flow intermittence is incomplete, especially in regions recently impacted by recurrent drying. Thus, we investigated benthic diatom flora of small intermittent, hilly streams in the warm temperate region of Europe (the Pannonian Ecoregion). Our hypotheses were addressed to compositional changes, biodiversity loss and diatom-based ecological assessment. The results revealed clear flow intermittence- induced differences in taxa and trait composition of diatoms. Altogether six species for the dry phase and three species in the aquatic phase were identified as indicative ones by using indicator value analyses. In contrast to water regime induced changes in assemblages, there was a seasonal overlap in taxa and trait composition. During the study period, the drying up of streams did not result in significant biodiversity loss either at taxa or trait levels. Functional dispersion, however, reduced significantly by summer. Overall, neither the hydrological regime nor seasonal changes had a significant effect on diatom-based quality indices, except for the Rott trophic index (TID index). The TID index values were significantly lower in dry phases than in aquatic ones. These results suggested that the drying up of streams has a very complex influence on benthic diatoms. It seems that taxonomical and functional redundancy can reduce the negative impact of short-time flow intermittence on assemblages. As a practical benefit, the results are the first to support the use of diatom-based quality indices in the assessment of flow intermittence in the temperate region.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Frontiers in Ecology and Evolution. - 10 (2022), p. 1-12. -
További szerzők:Kókai Zsuzsanna (1989-) (hidrobiológus) Várbíró Gábor (biológus) Mustazhapova, Gulperizat Csabai Zoltán Pernecker Bálint Borics Gábor (biológus) Bácsi István (1977-) (biológus) Boda Pál
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8.

001-es BibID:BIBFORM030950
Első szerző:Bernhardt-Römermann, Markus
Cím:Functional traits and local environment predict vegetation responses to disturbance : a pan-European multi-site-experiment / Markus Bernhardt-Römermann, Alan Gray, Adam J. Vanbergen, Laurent Bergès, Andreas Bohner, Rob W. Brooker, Luc De Bruyn, Bruno De Cinti, Thomas Dirnböck, Ulf Grandin, Alison J. Hester, Róbert Kanka, Stefan Klotz, Grégory Loucougaray, Lars Lundin, Giorgio Matteucci, Ilona Mészáros, Viktor Oláh, Elena Preda, Bernard Prévosto, Juha Pykälä, Wolfgang Schmidt, Michele E. Taylor, Angheluta Vadineanu, Theresa Waldmann, Jutta Stadler
Dátum:2011
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Journal of Ecology. - 99 : 3 (2011), p. 777-787. -
További szerzők:Gray, Alan Vanbergen, Adam J. Bergès, Laurent Bohner, Andreas Brooker, Rob W. De Bruyn, Luc De Cinti, Bruno Dirnböck, Thomas Grandin, Ulf Hester, Alison J. Kanka, Robert Klotz, Stefan Loucougaray, Grégory Lundin, Lars Matteucci, Giorgio Mészáros Ilona (1952-) (biológus) Oláh Viktor (1980-) (biológus) Preda, Elena Prévosto, Bernard Pykälä, Juha Schmidt, Wolfgang Taylor, Michele E. Vadineanu, Angheluta Waldmann, Theresa Stadler, Jutta
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9.

001-es BibID:BIBFORM057499
Első szerző:Bíró Éva
Cím:Honeybee (Apis mellifera) mediated increased reproductive success of a rare deceptive orchid / É. Biró, J. Bódis, T. Nagy, J. Tökölyi, A. Molnár V.
Dátum:2014
ISSN:1589-1623 1785-0037
Megjegyzések:Honeybees are the most numerous and significant among insect pollinators, but despite their significance their potential role in increasing the reproductive success of threatened European orchids remains largely unexplored. In this study we aim to evaluate the effect of apiary proximity on the fructification rate of the rare and endangered Adriatic Lizard Orchid (Himantoglossum adriaticum H. Baumann). To do so, first we quantified the reproductive success (fruit set) of the Adriatic Lizard Orchids in a Hungarian population in close proximity to a honeybee apiary at Nagytevel. Then we compared the reproductive success in this population to the reproductive success in 3 other Hungarian, 4 Croatian populations (observed during the same year, 2013) and further 4 populations from Hungary (studied in previous years, 1992?2011) with no apiaries in the close proximity of these. The realised 61.7 % fruit set at Nagytevel is the highest reproductive success ever recorded for this species. The importance of apiaries is further emphasised by the fact that the reproductive success of Lizard Orchid individuals decreased significantly with increasing distance from the apiary. Our results provide empirical support for the conservation importance of apiculture and suggest promising results for practical application of apiaries in the conservation of of deceptively pollinated orchids characterised by lower fruit set (e.g. Orchis, Anacamptis, Himantoglossum).
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
apiculture
fruit set
Himantoglossum adriaticum
pollination crisis
Orchidaceae
Élettudományok - Biológiai tudományok
Megjelenés:Applied Ecology and Environmental Research. - 13 : 1 (2014), p. 181-192. -
További szerzők:Bódis Judit Nagy T. Tökölyi Jácint (1984-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus)
Pályázati támogatás:MTA-DE Lendület
MTA
Viselkedésökológiai Kutatócsoport
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10.

001-es BibID:BIBFORM082704
035-os BibID:(cikkazonosító)125461
Első szerző:Bódis Judit
Cím:Biological flora of Central Europe Himantoglossum adriaticum H. Baumann / Judit Bódis, Éva Biró, Timea Nagy, Attila Takács, Gábor Sramkó, Richard M. Bateman, Lilla Gilián, Zoltán Illyés, Jácint Tökölyi, Balázs András Lukács, Miklós Csábi, V. Attila Molnár
Dátum:2019
ISSN:1433-8319
Megjegyzések:Himantoglossum adriaticum H. Baumann is a long-lived perennial orchid with an adriato-mediterranean distribution. The species-level separation of this species from the more geographically widespread H. hircinum has only recently been confirmed via a combination of molecular and morphometric techniques, which are further developed here. To provide a comprehensive overview of its autecology we integrated previously published information with extensive unpublished data derived mainly from populations in the Keszthely Hills of Hungary. In this paper we assess the distribution, habitat preferences, life history and seed germination (ex situ and in situ) of H. adriaticum, with special emphasis on its reproductive biology.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Orchidaceae
Dormancy
Genetic and morphological variation
Life cycle
Pollination
Reproductive biology
Megjelenés:Perspectives In Plant Ecology Evolution And Systematics. - 40 (2019), p. 1-17. -
További szerzők:Biró Éva Nagy Timea Takács Attila (1989-) (biológus, botanikus) Sramkó Gábor (1981-) (biológus) Bateman, Richard M. Gilián Lilla Illyés Zoltán (1980-) (biológus) Tökölyi Jácint (1984-) (biológus) Lukács Balázs András (1979-) (ökológus) Csábi Miklós Molnár V. Attila (1969-) (biológus, botanikus)
Pályázati támogatás:OTKA K108992
OTKA
OTKA PD109686
EFOP-3.6.3-VEKOP-16-2017-00008
EFOP
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11.

001-es BibID:BIBFORM103319
035-os BibID:(cikkazonosító)89 (Wos)000467428400001 (Scopus)85065121256
Első szerző:Bókony Veronika (alkalmazott zoológus)
Cím:Changing Migratory Behaviors and Climatic Responsiveness in Birds / Bókony Veronika, Barta Zoltán, Végvári Zsolt
Dátum:2019
ISSN:2296-701X
Megjegyzések:Change of avian migratory behavior is one of the best-studied phenomena presumably associated with contemporary climate change, yet to what degree these behavioral changes represent responses to climate warming is still controversial. We investigated interspecific variation in migratory behavior over three decades at a Central-European site, testing whether the type and extent of behavioral change are predicted by species' responsiveness to short-term variation in large-scale climatic indices. We found that species with earlier arrivals at the breeding grounds after winters with higher North-Atlantic Oscillation indices were more likely to overwinter at the study site. This behavior was more frequent in the second half than in the first half of the study, although the extent of this change was not predicted quantitatively by short-term climatic responsiveness. Overwintering was more prevalent in short-distance migrants with more complex diets and larger population sizes. Furthermore, species arriving earlier after summers with higher Sahel rainfall indices increasingly advanced their first arrival date, whereas species that do not molt in the pre-breeding season increased their frequency of overwintering in more recent years. Our results demonstrate that interspecific variation in short-term climatic responsiveness predicts long-term changes in migratory behaviors, supporting that the latter are responses to climate change. Furthermore, the type of response (advancing arrivals or overwintering near the breeding grounds) depends on life history. Finally, we found that overwintering behavior during the study period predicted subsequent trends in population size, suggesting that information on temporal changes in migratory strategy may help conservation planning and risk assessment.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Frontiers in Ecology and Evolution. - 7(2019), p. 1-12. -
További szerzők:Végvári Zsolt (1969-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:NKFIH-K-112527
Egyéb
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12.

001-es BibID:BIBFORM084644
Első szerző:Bókony Veronika (alkalmazott zoológus)
Cím:Necessity or capacity? Physiological state predicts problem-solving performance in house sparrows / Bókony Veronika, Lendvai Ádám Zoltán, Vágási István Csongor, Laura Patras, Pap Péter László, Németh József, Vincze Ernő, Papp Sándor, Preiszner Bálint, Seress Gábor, Liker András
Dátum:2014
ISSN:1045-2249
Megjegyzések:Innovative behaviors such as exploiting novel food sources can grant significant fitness benefits for animals, yet little is known about the mechanisms driving such phenomena, and the role of physiology is virtually unexplored in wild species. Two hypotheses predict opposing effects of physiological state on innovation success. On one hand, poor physiological condition may promote innovations by forcing individuals with poor competitive abilities to invent alternative solutions. On the other hand, superior physiological condition may ensure greater cognitive capacity and thereby better problem-solving and learning performance. To test these hypotheses, we studied the behavior of wild-caught house sparrows (Passer domesticus) in 4 novel tasks of food acquisition, one of which was presented to the birds in repeated trials, and we investigated the relationships of individual performance with relevant physiological traits. We found that problem-solving performance across the 4 tasks was moderately consistent within individuals. Birds with lower integrated levels of corticosterone, the main avian stress hormone, solved the most difficult task faster and were more efficient learners in the repeated task than birds with higher corticosterone levels. Birds with higher concentration of total glutathione, a key antioxidant, solved 2 relatively easy tasks faster, whereas birds with fewer coccidian parasites tended to solve the difficult task more quickly. Our results, thus, indicate that aspects of physiological state influence problem-solving performance in a context-dependent manner, and these effects on problem-solving capacity, probably including cognitive abilities, are more likely to drive individual innovation success than necessity due to poor condition.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
animal innovation
coccidiosis
learning
oxidative status
stress physiology
Megjelenés:Behavioral Ecology. - 25 : 1 (2014), p. 124-135. -
További szerzők:Lendvai Ádám Zoltán (1977-) (biológus) Vágási Csongor István Pătraş, Laura Pap Péter László (ökológus) Németh József (1954-) (vegyész, analitikus) Vincze Ernő Papp Sándor Preiszner Bálint Seress Gábor Liker András
Pályázati támogatás:OTKA-K84132
OTKA
OTKA-PD76862
OTKA
OTKA-K75965
OTKA
TÁMOP-4.2.2.A-11/1/KONV-2012-0064
TÁMOP
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