Találati lista | Tudóstér

001-es BibID:	BIBFORM104477
035-os BibID:	(WoS)000837155300003 (Scopus)85136153178 (cikkazonosító)e13660
Első szerző:	Fülöp Attila (biológus)
Cím:	Fighting ability, personality and melanin signalling in free-living Eurasian tree sparrows (Passer montanus) / Attila Fülöp, Zoltán Németh, Bianka Kocsis, Bettina Deák-Molnár, Tímea Bozsoky, Gabriella Csöppü, Zoltán Barta
Dátum:	2022
ISSN:	2167-8359
Megjegyzések:	Background Individuals' access to resources is often decided during dyadic contests the outcome of which is determined by the fighting (or competitive) ability of the participants. Individuals' fighting ability (termed also as resource-holding power or potential, RHP) is usually associated with individual features (e.g., sex, age, body size) and is also frequently signalled through various ornaments like the black throat patch (bib) in many birds. Individual personality is a behavioural attribute often linked to fighting ability as well. Based on earlier studies, however, the relationship between personality and fighting ability is far from being straightforward. While accounting for sex and body size, we studied whether exploratory behaviour, an aspect of personality, predicts fighting ability when competing for food during winter in free-living Eurasian tree sparrows (Passer montanus). We also investigated whether the bib can serve as a potential indicator of individual competitiveness in this species. Methods We captured adult tree sparrows, marked them with a unique combination of colour rings, and collected data about the individuals' sex, body size, bib size and exploratory behaviour. Birds were then released and the agonistic behaviour of the marked individuals was recorded while foraging in groups on bird feeding platforms. Results The probability of winning a fight, a proxy for fighting ability of individuals, was not related to exploratory behaviour, in either of the sexes. However, bib size was positively related to probability of winning in females, but not in males. Body size was not associated with probability of winning neither in males, nor in females. Conclusions Our results suggest that, at least in tree sparrows, the outcome of dyadic encounters over food during the non-breeding period are not determined by the exploratory personality of individuals. However, our findings provide further support for a status signalling role of the black bib in tree sparrows, and hint for the first time that bib size might function as a status signal in females as well. Finally, our results do not confirm that body size could serve as an indicator of fighting ability (i.e., RHP) in this species.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Competition Contest Resource-holding potential Exploratory behaviour Sex differences Badge of status Passer montanus
Megjelenés:	PeerJ. - 10 (2022), p. 1-24. -
További szerzők:	Németh Zoltán (1976-) (biológus) Kocsis Bianka Deák-Molnár Bettina Bozsoky Tímea Csöppü Gabriella Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:	OTKA-112527 OTKA EFOP-3.6.1-16-2016-00022 EFOP TKP2020-IKA-04 Egyéb MAEO 2021-22/166661 Egyéb FK124414 OTKA János Bolyai Research Scholarship MTA ÚNKP-21-5 Egyéb Magyar Vidékért (Pro Regione) Alapítvány Egyéb MTA-DE MTA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

001-es BibID:	BIBFORM079614
035-os BibID:	(cikkazonosító)e4047 (PMID)29201562 (PMCID)PMC5710163 (WoS)000416519100001 (Scopus)85035315063
Első szerző:	Nagy Nikoletta Andrea (biológus)
Cím:	Evaluation of potential reference genes for real-time qPCR analysis in a biparental beetle, Lethrus apterus (Coleoptera: Geotrupidae) / Nikoletta A. Nagy, Zoltán Németh, Edit Juhász, Szilárd Póliska, Rita Rácz, András Kosztolányi, Zoltán Barta
Dátum:	2017
ISSN:	2167-8359
Megjegyzések:	Hormones play an important role in the regulation of physiological, developmental and behavioural processes. Many of these mechanisms in insects, however, are still not well understood. One way to investigate hormonal regulation is to analyse gene expression patterns of hormones and their receptors by real-time quantitative polymerase chain reaction (RT-qPCR). This method, however, requires stably expressed reference genes for normalisation. In the present study, we evaluated 11 candidate housekeeping genes as reference genes in samples of Lethrus apterus, an earth-boring beetle with biparental care, collected from a natural population. For identifying the most stable genes we used the following computational methods: geNorm, NormFinder, BestKeeper, comparative delta Ct method and RefFinder. Based on our results, the two body regions sampled (head and thorax) differ in which genes are most stably expressed. We identified two candidate reference genes for each region investigated: ribosomal protein L7A and RP18 in samples extracted from the head, and ribosomal protein L7A and RP4 extracted from the muscles of the thorax. Additionally, L7A and RP18 appear to be the best reference genes for normalisation in all samples irrespective of body region. These reference genes can be used to study the hormonal regulation of reproduction and parental care in Lethrus apterus in the future.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Insect Parental care Housekeeping gene
Megjelenés:	PeerJ. - 5 (2017), p. 1-16. -
További szerzők:	Németh Zoltán (1976-) (biológus) Juhász Edit Póliska Szilárd (1978-) (biológus) Rácz Rita (1989-) (biológus) Kosztolányi András (1971-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:	NKFIH K112670 egyéb NKFIH K112527 egyéb EFOP-3.6.1-16-2016-00022 EFOP NKFIH PD121013 egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

001-es BibID:	BIBFORM086278
035-os BibID:	(cikkazonosító)e7475 (WoS)000491858000001 (Scopus)85074138748
Első szerző:	Rádai Zoltán (biológus)
Cím:	Antibacterial immune functions of subadults and adults in a semelparous spider / Rádai Zoltán, Kiss Péter, Nagy Dávid, Barta Zoltán
Dátum:	2019
ISSN:	2167-8359
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	PeerJ. - 7 (2019), p. 1-23. -
További szerzők:	Kiss Péter Nagy Dávid Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:	EFOP-3.6.1-16-2016-00022 EFOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: