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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
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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
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001-es BibID:	BIBFORM103262
035-os BibID:	(cikkazonosító)39 (WOS)000521053300003 (Scopus)85081599279
Első szerző:	Mahr, Katharina
Cím:	Insulin-like growth factor 1 is related to the expression of plumage traits in a passerine species / Katharina Mahr, Orsolya Vincze, Zsófia Tóth, Herbert Hoi, Ádám Z. Lendvai
Dátum:	2020
ISSN:	0340-5443
Megjegyzések:	Avian plumage colors and ornaments are excellent models to study the endocrine mechanisms linking sexually selected traits and individual parameters of quality and condition. Insulin-like growth factor 1 (IGF-1) is an evolutionarily highly conserved peptide hormone. Its regulatory role in cell proliferation and differentiation and its high sensitivity to the nutritional state of individuals suggest it as an interesting candidate, possibly providing a link between body condition and individual capacity to grow elaborated ornamental features. We investigated whether IGF-1 levels during molting correlate with the expression of multiple ornaments in a sexually dichromatic passerine species, the bearded reedling (Panurus biarmicus). We collected blood samples of males and females shortly before the molting completed and measured the size and colors of ornamental traits. Our results indicate that in males, structural plumage colors, the size of the melanin-based ornament (beard), and tail length are independent traits. IGF-1 levels are associated with the length of the tail and the expression of male structural plumage components (UV coloration), but not the melanin-based ornament. In females, plumage color and tail length were independent traits, which were not related to IGF-1 levels. To the best of our knowledge, this study provides the first evidence that IGF-1 could play a role in the development of secondary sexual characters in a bird species.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Plumage coloration Sexual selection Physiology IGF-1 Condition
Megjelenés:	Behavioral Ecology and Sociobiology. - 74 : 3 (2020), p. 1-12. -
További szerzők:	Vincze Orsolya (1988-) (biológus) Tóth Zsófia (1991-) (biológus) Hoi, Herbert Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:	K 113108 OTKA EFOP-3.6.1-16-2016-00022 EFOP TET 15-1-2016-0044 Egyéb MÁEÖ2016_15/76740 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM104502
035-os BibID:	(cikkazonosító)150 (WoS)000876298200001 (Scopus)85140850635
Első szerző:	Rádai Zoltán (biológus)
Cím:	State and physiology behind personality in arthropods: a review / Zoltán Rádai, Johanna Kiss, Nikoletta A. Nagy, Anna Ágnes Somogyi, Attila Fülöp, Zsófia Tóth, Melinda Alexáné Babits, Zoltán Németh
Dátum:	2022
ISSN:	0340-5443
Megjegyzések:	In the endeavour to understand the causes and consequences of the variation in animal personality, a wide range of studies were carried out, utilising various aspects to make sense of this biological phenomenon. One such aspect integrated the study of physiological traits, investigating hypothesised physiological correlates of personality. Although many of such studies were carried out on vertebrates (predominantly on birds and mammals), studies using arthropods (mainly insects) as model organisms were also at the forefront of this area of research. In order to review the current state of knowledge on the relationship between personality and the most frequently studied physiological parameters in arthropods, we searched for scientific articles that investigated this relationship. In our review, we only included papers utilising a repeated-measures methodology to be conceptually and formally concordant with the study of animal personality. Based on our literature survey, metabolic rate, thermal physiology, immunophysiology, and endocrine regulation, as well as exogenous agents (such as toxins) were often identified as significant affectors shaping animal personality in arthropods. We found only weak support for state-dependence of personality when the state is approximated by singular elements (or effectors) of condition. We conclude that a more comprehensive integration of physiological parameters with condition may be required for a better understanding of state's importance in animal personality. Also, a notable knowledge gap persists in arthropods regarding the association between metabolic rate and hormonal regulation, and their combined effects on personality. We discuss the findings published on the physiological correlates of animal personality in arthropods with the aim to summarise current knowledge, putting it into the context of current theory on the origin of animal personality.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Consistent behaviour Repeatability Physiology State-dependent Condition Metabolic rate Hormonal regulation
Megjelenés:	Behavioral Ecology and Sociobiology. - 76 (2022), p. 1-20. -
További szerzők:	Kiss Johanna (1989-) (zoológus) Nagy Nikoletta Andrea (1990-) (biológus) Somogyi Anna Ágnes (1988-) (biológus) Fülöp Attila (1987-) (biológus) Tóth Zsófia (1991-) (biológus) Alexáné Babits Melinda Németh Zoltán (1976-) (biológus)
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