CCL

Összesen 8 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM105584
035-os BibID:(WoS)000897171800009 (Scopus)85143640929
Első szerző:Fülöp Attila (biológus)
Cím:Space use of wintering Eurasian Tree Sparrows (Passer montanus) in a semi-urban area : a radiotelemetry-based case study / Attila Fülöp, Dóra Lukács, Zoltán Barta
Dátum:2022
ISSN:1215-1610 2061-9588
Megjegyzések:Space use, which includes the home range and habitat utilisation pattern of individuals for different activities (e.g. foraging, roosting), is one of the fundamental aspects of a species ecology. Hence, knowledge on the different aspects of space use in general is essential to understand the relationship between species and their habitat. Here, we investigated the home range size (using the minimum convex polygon method; MCP) and roosting site selection, using radiotelemetry, in a sedentary passerine species, the Eurasian Tree Sparrows (Passer montanus). The study was carried out during the non-breeding period (i.e. wintering), in a semi-urban habitat where supplemental feeding was also available. We found that individuals had highly variable home ranges, both in shape and size (mean +/- SD of 95% MCP: 6.89 +/- 5.73 ha), the location of which was influenced by the presence of bird feeders. Roosting sites of the tracked individuals were largely consistent at an individual level, that is, all birds used the same locations for roosting during the whole tracking period, and the roosting sites of all individuals were located on buildings, except for a few rare occasions. Our results suggest that urbanised habitats can provide multiple benefits for the individuals during the winter in the form of easily accessible resources (e.g. food, roosting place), and individuals readily exploit these resources by adjusting their space use according to their availability.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
home range
roosting
radiotelemetry
Passer montanus
Megjelenés:Ornis Hungarica. - 30 : 2 (2022), p. 124-133. -
További szerzők:Lukács Dóra Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:OTKA-112527
OTKA
TKP2021-NKTA-32
Egyéb
PN-III-P1-1.1-TE-2021-0502)
Egyéb
CNFIS-FDI-2022-0179
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

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:

3.

001-es BibID:BIBFORM096488
035-os BibID:(WoS)000493378300004 (Scopus)85072370499
Első szerző:Fülöp Attila (biológus)
Cím:Personality and social foraging tactic use in free-living Eurasian tree sparrows (Passer montanus) / Fülöp Attila, Németh Zoltán, Kocsis Bianka, Deák-Molnár Bettina, Bozsoky Tímea, Barta Zoltán
Dátum:2019
ISSN:1045-2249
Megjegyzések:Group-foraging individuals often use alternative behavioral tactics to acquire food: some individuals, the producers, actively search for food, whereas others, the scroungers, look for opportunities to exploit the finders' discoveries. Although the use of social foraging tactics is partly flexible, yet some individuals tend to produce more, whereas others largely prefer to scrounge. This between-individual variation in tactic use closely resembles the phenomenon of animal personality; however, the connection between personality and social foraging tactic use has rarely been investigated in wild animals. Here, we studied this relationship in free-living Eurasian tree sparrows (Passer montanus) during 2 winters. We found that in females, but not in males, social foraging tactic use was predicted by personality: more exploratory (i.e., more active in a novel environment) females scrounged more. Regardless of sex, the probability of scrounging increased with the density of individuals foraging on feeders and the time of feeding within a foraging bout, that is, the later the individual foraged within a foraging bout the higher the probability of scrounging was. Our results demonstrate that consistent individual behavioral differences are linked, in a sex-dependent manner, to group-level processes in the context of social foraging in free-living tree sparrows, suggesting that individual behavioral traits have implications for social evolution.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
exploration
open-field test
producer
scrounger
social behavior
Megjelenés:Behavioral Ecology. - 30 : 4 (2019), p. 894-903. -
További szerzők:Németh Zoltán (1976-) (biológus) Kocsis Bianka Deák-Molnár Bettina Bozsoky Tímea Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:OTKA-112527
OTKA
PD121013
OTKA
FK124414
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

4.

001-es BibID:BIBFORM096419
035-os BibID:(cikkazonosító)38 (WoS)000611543600001 (Scopus)85099821531
Első szerző:Fülöp Attila (biológus)
Cím:Sex-specific signalling of individual personality by a mutual plumage ornament in a passerine / Attila Fülöp, Dóra Lukács, Péter Imre Fábián, Bianka Kocsis, Gabriella Csöppü, Judit Bereczki, Zoltán Barta
Dátum:2021
ISSN:0340-5443
Megjegyzések:The significance of colour signals in species with strong sexual dimorphism and/or elaborated visual ornaments is rather well-understood. Less attention has, however, been devoted to study colour signals in species with weak or no apparent sexual dimorphism. In such species, an interesting possibility arises as both sexes can bear the same colour ornament(s) (i.e. sexes are mutually ornamented), but their signalling value might differ in males and females. We aimed to explore this possibility by investigating the phenotypic correlates of the black bib, a melanin-based plumage ornament, in the Eurasian tree sparrow (Passer montanus). More specifically, we studied the sex-dependent relationships between bib size and three aspects of individuals' phenotype: body condition (i.e. size-corrected body mass), physiology (i.e. cellular innate immunity/inflammation status, expressed through total leucocyte counts, and chronic physiological stress, expressed through the ratio of heterophils to lymphocytes) and individual personality (i.e. activity in a novel environment). We found that bib size was not associated with body condition and cellular innate immunity/inflammation status, but was positively related to physiological stress levels independent of sex. Furthermore, bib size was negatively associated with activity in males but positively in females. Our findings bring important correlative evidence that mutual ornamental traits may have sex-specific signalling value.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Melanin-based ornament
Personality
Physiology
Melanocortin hypothesis
Phenotypic integration
Passer montanus
Megjelenés:Behavioral Ecology And Sociobiology. - 75 : 2 (2021), p. 1-13. -
További szerzők:Lukács Dóra Fábián Péter Imre Kocsis Bianka Csöppü Gabriella Bereczki Judit (1979-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:OTKA-112527
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
NKFIH-1150-6/2019
FIKP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM114543
035-os BibID:(cikkazonosító)5096 (WoS)001063751200018 (Scopus)85169756508
Első szerző:Ozogány Katalin (biológiai fizikus)
Cím:Fine-scale collective movements reveal present, past and future dynamics of a multilevel society in Przewalski's horses / Ozogány, Katalin; Kerekes, Viola; Fülöp, Attila; Barta, Zoltán; Nagy, Máté
Dátum:2023
ISSN:2041-1723
Megjegyzések:Studying animal societies needs detailed observation of many individuals, but technological advances offer new opportunities in this field. Here, we present a state-of-the-art drone observation of a multilevel herd of Przewalski's horses, consisting of harems (one-male, multifemale groups). We track, in high spatio-temporal resolution, the movements of 238 individually identified horses on drone videos, and combine movement analyses with demographic data from two decades of population monitoring. Analysis of collective movements reveals how the structure of the herd's social network is related to kinship and familiarity of individuals. The network centrality of harems is related to their age and how long the harem stallions have kept harems previously. Harems of genetically related stallions are closer to each other in the network, and female exchange is more frequent between closer harems. High movement similarity of females from different harems predicts becoming harem mates in the future. Our results show that only a few minutes of fine-scale movement tracking combined with high throughput data driven analysis can reveal the structure of a society, reconstruct past group dynamics and predict future ones.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Nature Communications. - 14 : 1 (2023), p. 1-12. -
További szerzők:Kerekes Viola Fülöp Attila (1987-) (biológus) Barta Zoltán (1967-) (biológus, zoológus) Nagy Máté
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

6.

001-es BibID:BIBFORM030382
Első szerző:Pap Péter László (ökológus)
Cím:The Effect of Coccidians on The Condition and Immune profile of Molting House Sparrows (Passer domesticus) / Péter László Pap, Csongor István Vágási, Gábor Árpád Czirják, Adriana Titilincu, Adela Pintea, Gergely Osváth, Attila Fülöp, Zoltán Barta
Dátum:2011
ISSN:0004-8038
Megjegyzések:Feather molt is recognized as an energetically costly activity for birds, and parasite infestation during molt has the potential to reduce host fitness because parasites sequester essential nutrients and stimulate the immune system. We manipulated the coccidian parasite load of captive male House Sparrows (Passer domesticus) by suppressing the natural infection of control birds with an anticoccidial drug and infecting experimental birds with coccidian oocysts. Following infestation, the effect of chronic coccidian infection on individual condition, molt and 12 indices of physiological and immunological function was assessed. We found a significant positive relationship between infestation and heterophil/lymphocyte ratio measured at capture, indicating infectioninduced stress. We also found that coccidians negatively affected feather growth during molt: the increase in wing length of the noninfected birds was significantly higher than that of infected birds. In comparison to control birds, infected birds showed a significantly higher concentration of white blood cells and greater blood bactericidal activity. There was also a positive correlation between infection intensity, agglutination and lysis of blood in the experimentally infested birds, which indicated activation of the constitutive innate immune system during infection. Finally, the total antioxidant capacity of the blood increased significantly, while the carotenoid concentration decreased significantly in infected compared with control birds. Therefore, we showed that coccidians stimulated several measures of the constitutive innate immunity, including the bactericidal activity of the blood, and that coccidians can have significant negative effects on the health and possibly fitness of molting House Sparrows
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
aviary
bacteria killing capacity
complement
experimental infection
feather quality
immune response, Isospora
natural antibodies
Megjelenés:The auk. - 128 : 2 (2011), p. 330-339. -
További szerzők:Vágási Csongor István Czirják Gábor Árpád Titilincu, Adriana Pintea, Adela Osváth Gergely (1985-) (biológus) Fülöp Attila (1987-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

7.

001-es BibID:BIBFORM097706
Első szerző:Rosa Márta Erzsébet
Cím:The effects of adult sex ratio and density on parental care in Lethrus apterus (Coleoptera, Geotrupidae) / Rosa Márta E., Barta Zoltán, Fülöp Attila, Székely Tamás, Kosztolányi András
Dátum:2017
ISSN:0003-3472
Megjegyzések:Theoretical models suggest that adult sex ratio (ASR) and population density are expected to influence parental roles by reducing the mating opportunities of the commoner sex and by changing the intensity of sperm competition, although experimental evidence for these predictions is sparse. In biparental species with a high risk of extrapair paternity and consecutive egg laying over the breeding period, males are expected to reduce their parental investment and to spend more time on mate guarding if male density is high, to maximize their fitness. We conducted a field experiment to test this hypothesis in Lethrus apterus, a flightless biparental beetle species from the Geotrupidae family. Using seminatural enclosures, we assigned individuals to nine treatment groups differing in adult sex ratio (three levels) and individual density (three levels) using a full factorial experimental design. Nest attendance and parental provisioning (i.e. collecting and transporting leaves to the nest) were recorded as well as the number, size and sex ratio of the offspring. We found that as the level of male?male competition increased, generated either by the increased density of individuals or by the male-biased sex ratio, pairs showed higher nest attendance and collected fewer leaves. Male-biased groups also produced fewer offspring under high and low densities indicating a possible conflict of interest between the sexes over paternity and brood size. These results support the increased paternity assurance hypothesis under a high level of intrasexual competition.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
adult sex ratio
certainty of paternity
density
Geotrupidae
Lethrus
mate guarding
parental care
parental roles
sperm competition
Megjelenés:Animal Behaviour. - 132 (2017), p. 181-188. -
További szerzők:Barta Zoltán (1967-) (biológus, zoológus) Fülöp Attila (1987-) (biológus) Székely Tamás (1959-) (biológus) Kosztolányi András (1971-) (biológus)
Pályázati támogatás:K112670
Egyéb
K112527
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

8.

001-es BibID:BIBFORM091444
035-os BibID:(cikkazonosító)20203092 (WoS)000613752100015 (Scopus)85100477046
Első szerző:Vágási Csongor István
Cím:Social groups with diverse personalities mitigate physiological stress in a songbird / Csongor I. Vágási, Attila Fülöp, Gergely Osváth, Péter L. Pap, Janka Pénzes, Zoltán Benkő, Ádám Z. Lendvai, Zoltán Barta
Dátum:2021
ISSN:0962-8452
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Proceedings Of The Royal Society B-Biological Sciences. - 288 : 1943 (2021), p. 1-8. -
További szerzők:Fülöp Attila (1987-) (biológus) Osváth Gergely (1985-) (biológus) Pap Péter László (ökológus) Pénzes Janka Benkő Zoltán Lendvai Ádám Zoltán (1977-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1 
Corvina könyvtári katalógus v8.2.27 © 2023 Monguz kft. Minden jog fenntartva.