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001-es BibID:BIBFORM104012
035-os BibID:(WoS)000458197500002 (Scopus)85061116252
Első szerző:Horváth Gergely
Cím:Roll with the fear: environment and state dependence of pill bug (Armadillidium vulgare) personalities / Gergely Horváth, László Zsolt Garamszegi, Judit Bereczki, Tamás János Urszán, Gergely Balázs, Gábor Herczeg
Dátum:2019
ISSN:0028-1042
Megjegyzések:Most studies on animal personality evaluate individual mean behaviour to describe individual behavioural strategy, while oftenneglecting behavioural variability on the within-individual level. However, within-individual behavioural plasticity (variationinduced by environment) and within-individual residual variation (regulatory behavioural precision) are recognized as biologi-cally valid components of individual behaviour, but the evolutionary ecology of these components is still less understood. Here,we tested whether behaviour of common pill bugs (Armadillidium vulgare) differs on the among- and within-individual level andwhether it is affected by various individual specific state-related traits (sex, size andWolbachiainfection). To this aim, we assayedrisk-taking in familiar vs. unfamiliar environments 30 times along 38 days and applied double modelling statistical technique tohandle the complex hierarchical structure for both individual-specific trait means and variances. We found that there are signif-icant among-individual differences not only in mean risk-taking behaviour but also in environment- and time-induced behaviouralplasticity and residual variation.Wolbachia-infected individuals took less risk than healthy conspecifics; in addition, individualsbecame more risk-averse with time. Residual variation decreased with time, and individuals expressed higher residual variation inthe unfamiliar environment. Further, sensitization was stronger in females and in larger individuals in general. Our results suggestthat among-individual variation, behavioural plasticity and residual variation are all (i) biologically relevant components of anindividual's behavioural strategy and (ii) responsive to changes in environment or labile state variables. We propose pill bugs aspromising models for personality research due to the relative ease of getting repeated behavioural measurements
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Animal personality
Behavioural plasticity
Residual variation
Individual state
Environmental differences
Wolbachia
Megjelenés:Naturwissenschaften. - 106 : 3-4 (2019), p. 1-11. -
További szerzők:Garamszegi László Zsolt Bereczki Judit (1979-) (biológus) Urszán Tamás János Balázs Gergely Herczeg Gábor
Pályázati támogatás:115970
OTKA
129215
OTKA
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2.

001-es BibID:BIBFORM086712
Első szerző:Moskát Csaba
Cím:Female-female aggression and male responses to the two colour morphs of female common cuckoos / Csaba Moskát, Márk E. Hauber, Jana Růžičková, Attila Marton, Miklós Bán, Zoltán Elek
Dátum:2020
ISSN:0028-1042
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Naturwissenschaften. - 107 : 4 (2020), p. 1-13. -
További szerzők:Hauber, Mark E. Růžičková, Jana Marton Attila (1990-) (biológus) Bán Miklós (1975-) (biológus) Elek Z.
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3.

001-es BibID:BIBFORM013484
Első szerző:Pap Péter László (ökológus)
Cím:Sexual dimorphism in immune function changes during the annual cycle in house sparrows / Péter László Pap, Gábor Árpád Czirják, Csongor István Vágási, Zoltán Barta, Dennis Hasselquist
Dátum:2010
ISSN:0028-1042
Megjegyzések:Difference between sexes in parasitism is a common phenomenon among birds, which may be related to differences between males and females in their investment into immune functions or as a consequence of differential exposure to parasites. Because life-history strategies change sex specifically during the annual cycle, immunological responses of the host aiming to reduce the impact of parasites may be sexually dimorphic. Despite the great complexity of the immune system, studies on immunoecology generally characterise the immune status through a few variables, often overlooking potentially important seasonal and gender effects. However, because of the differences in physiological and defence mechanisms among different arms of the immune system, we expect divergent responses of immune components to environmental seasonality. In male and female house sparrows (Passer domesticus), we measured the major components of the immune system (innate, acquired, cellular and humoral) during four important life-history stages across the year: (1) mating, (2) breeding, (3) moulting and (4) during the winter capture and also following introduction to captivity in aviary. Different individuals were sampled from the same population during the four life cycle stages. We found that three out of eight immune variables showed a significant life cycle stage x sex interaction. The difference in immune response between the sexes was significant in five immune variables during the mating stage, when females had consistently stronger immune function than males, while variables varied generally non-significantly with sex during the remaining three life cycle stages. Our results show that the immune system is highly variable between life cycle stages and sexes, highlighting the potential fine tuning of the immune system to specific physiological states and environmental conditions.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Acquired immunity
Annual cycle of immune responses
Cellular immunity
Humoral and innate immunity
Passer domesticus
Sex-differential immunity
Megjelenés:Naturwissenschaften. - 97 : 10 (2010), p. 891-901. -
További szerzők:Czirják Gábor Árpád Vágási Csongor István Barta Zoltán (1967-) (biológus, zoológus) Hasselquist, Dennis
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4.

001-es BibID:BIBFORM074569
Első szerző:Rádai Zoltán (biológus)
Cím:Sex-dependent immune response in a semelparous spider / Rádai Zoltán, Németh Zoltán, Barta Zoltán
Dátum:2018
Megjegyzések:Previous studies on arthropods showed that seasonality and parity in breeding considerably impact the direction of sex differences in immunocompetence, and it has been suggested that life span and the time window available for breeding play key roles in shaping sex-differences in immunity. One proposed mechanism behind this phenomenon is differential investment into life history traits in sexes. Here, we tested whether in a seasonally breeding semelparous arthropod sexes differ in their immunocompetence, predicting that females would show weaker immune response than males. We compared encapsulation efficiency (a well-established and widely used method for assessing immunocompetence) of freshly matured, virgin males and females of the lycosid spider Pardosa agrestis (Westring, 1861). On average, males mounted stronger immune response than females and the extent of encapsulation was positively associated with prosoma length in males, but not in females. Also, time until maturation was positively related to the extent of encapsulation in both sexes, but did not significantly affect adult prosoma length. We propose that sex-difference in encapsulation is likely shaped by combined effects of relatively higher costs of reproduction in females, narrow time window of reproductive activity, and the absence of trade-off between current and future reproduction.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Sex-bias
Immunity
Reproductive strategy
Semelparity
Megjelenés:Naturwissenschaften. - 105 : 7-8 (2018), p. 39. -
További szerzők:Németh Zoltán (1976-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
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