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001-es BibID:	BIBFORM105261
035-os BibID:	(cikkazonosító)e0270618 (WoS)000924686200005 (Scopus)85140818507
Első szerző:	Barta Zoltán (biológus, zoológus)
Cím:	Publication games: In the web of reciprocity / Zoltán Barta
Dátum:	2022
ISSN:	1932-6203
Megjegyzések:	The present processes of research assessment, i.e. focusing on one or a few, related, scientometrics, foster questionable authorship practices, like gifting authorship to non-contributing people. An especially harmful one of these unethical practices is the formation of publication cartels, where authors offer gift authorship to each other reciprocally. Here, by developing a simple model and a simulation of the publication process I investigate how beneficial cartels can be and what measure can be used to restrict them. My results indicate that publication cartels can significantly boost members' productivity even if paper counts are weighted by the inverse of author number (the 1/n rule). Nevertheless, applying the 1/n rule generates conflicts of interest both among cartel members themselves and between cartel members and non-members which might lead to the self-purification of the academic publishing industry.
Tárgyszavak:	Társadalomtudományok Szociológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Plos One. - 17 : 10 (2022), p. 1-14. -
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM059184
Első szerző:	László Zoltán (biokémikus, molekuláris biológus)
Cím:	Predation on Rose Galls : Parasitoids and Predators Determine Gall Size through Directional Selection / Zoltán László, Katalin Sólyom, Hunor Prázsmári, Zoltán Barta, Béla Tóthmérész
Dátum:	2014
ISSN:	1932-6203
Megjegyzések:	Both predators and parasitoids can have significant effects on species' life history traits, such as longevity or clutch size. In the case of gall inducers, sporadically there is evidence to suggest that both vertebrate predation and insect parasitoid attack may shape the optimal gall size. While the effects of parasitoids have been studied in detail, the influence of vertebrate predation is less well-investigated. To better understand this aspect of gall size evolution, we studied vertebrate predation on galls of Diplolepis rosae on rose (Rosa canina) shrubs. We measured predation frequency, predation incidence, and predation rate in a large-scale observational field study, as well as an experimental field study. Our combined results suggest that, similarly to parasitoids, vertebrate predation makes a considerable contribution to mortality of gall inducer larvae. On the other hand, its influence on gall size is in direct contrast to the effect of parasitoids, as frequency of vertebrate predation increases with gall size. This suggests that the balance between predation and parasitoid attack shapes the optimal size of D. rosae galls.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban BINOMINALS BIRDS FORESTS PREDATION INSECTS PARASITISM SHRUBS VERTEBRATES
Megjelenés:	Plos One. - 9 : 6 (2014), p. e99806-. -
További szerzők:	Sólyom Katalin Prázsmári Hunor Barta Zoltán (1967-) (biológus, zoológus) Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:	K75696 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM042009
035-os BibID:	(cikkazonosító)e40651
Első szerző:	Vágási Csongor István
Cím:	Haste makes waste but condition matters : Molt rate-feather quality trade-off in a sedentary songbird / Csongor I. Vágási, Péter L. Pap, Orsolya Vincze, Zoltán Benkő, Attila Marton, Zoltán Barta
Dátum:	2012
ISSN:	1932-6203
Megjegyzések:	AbstractBackground: The trade-off between current and residual reproductive values is central to life history theory, although thepossible mechanisms underlying this trade-off are largely unknown. The ♭molt constraint' hypothesis suggests that molt andplumage functionality are compromised by the preceding breeding event, yet this candidate mechanism remainsinsufficiently explored.Methodology/Principal Findings: The seasonal change in photoperiod was manipulated to accelerate the molt rate. Thistreatment simulates the case of naturally late-breeding birds. House sparrows Passer domesticus experiencing acceleratedmolt developed shorter flight feathers with more fault bars and body feathers with supposedly lower insulation capacity (i.e.shorter, smaller, with a higher barbule density and fewer plumulaceous barbs). However, the wing, tail and primary featherlengths were shorter in fast-molting birds if they had an inferior body condition, which has been largely overlooked inprevious studies. The rachis width of flight feathers was not affected by the treatment, but it was still condition-dependent.Conclusions/Significance: This study shows that sedentary birds might face evolutionary costs because of the molt rate?feather quality conflict. This is the first study to experimentally demonstrate that (1) molt rate affects several aspects of bodyfeathers as well as flight feathers and (2) the costly effects of rapid molt are condition-specific. We conclude that molt rateand its association with feather quality might be a major mediator of life history trade-offs. Our findings also suggest a noveladvantage of early breeding, i.e. the facilitation of slower molt and the condition-dependent regulation of feather growth.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Élettudományok - Biológiai tudományok
Megjelenés:	PLoS ONE. - 7 : 7 (2012), p. 1-9. -
További szerzők:	Pap Péter László (ökológus) Vincze Orsolya (1988-) (biológus) Benkő Zoltán Marton Attila (1990-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:	MTA-DE Lendület MTA Viselkedésökológiai Kutatócsoport
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM013474
Első szerző:	Vágási Csongor István
Cím:	Haste Makes Waste : accelerated Molt Adversely Affects the Expression of Melanin-Based and Depigmented Plumage Ornaments in House Sparrows / Csongor I. Vágási, Péter L. Pap, Zoltán Barta
Dátum:	2010
Megjegyzések:	Background: Many animals display colorful signals in their integument which convey information about the quality of their bearer. Theoretically, these ornaments incur differential production and/or maintenance costs that enforce their honesty. However, the proximate mechanisms of production costs are poorly understood and contentious in cases of noncarotenoid- based plumage ornaments like the melanin-based badge and depigmented white wing-bar in house sparrows Passer domesticus. Costly life-history events are adaptively separated in time, thus, when reproduction is extended, the time available for molt is curtailed and, in turn, molt rate is accelerated. Methodology/Principal Findings: We experimentally accelerated the molt rate by shortening the photoperiod in order to test whether this environmental constraint is mirrored in the expression of plumage ornaments. Sparrows which had undergone an accelerated molt developed smaller badges and less bright wing-bars compared to conspecifics that molted at a natural rate being held at natural-like photoperiod. There was no difference in the brightness of the badge or the size of the wing-bar. Conclusions/Significance: These results indicate that the time available for molt and thus the rate at which molt occurs may constrain the expression of melanin-based and depigmented plumage advertisements. This mechanism may lead to the evolution of honest signaling if the onset of molt is condition-dependent through the timing of and/or trade-off between breeding and molt.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Egészség- és Környezettudomány
Megjelenés:	PloS One. - 5 : 12 (2010), p. e14215. -
További szerzők:	Pap Péter László (ökológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:	TÁMOP-4.2.1/B-09/1-KONV-2010-0007 TÁMOP Viselkedésökológiai Kutatócsoport
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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