Articolele autorului Peter Laszlo Pap
Link la profilul stiintific al lui Peter Laszlo Pap

post vacant asistent de cercetare in domeniul biochimiei si microbiologiei la Cluj Napoca

Anunt Asistent de cercetare pe tema: REZISTENTA SI TOLERANTA LA PARAZITISM- MEDIATORI AI EVOLUTIEI CARACTERISTICILOR ECOFIZIOLOGICE LA PASARI: ROLUL STRESULUI OXIDATIV SI A CELULELOR SISTEMULUI IMUNITAR IN MEDIEREA ACESTOR PROCESE. Cerinte: licentiat(a) in Biochimie, Biologie, Ecologie si Protectia mediului. Abilitati practice in domeniile Biochimie, Imunologie, Biologie Moleculara, Microbiologie. Cunostinte

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Carotenoids modulate the effect of coccidian infection on condition and immune response in moulting house sparrows
Workshop: Cooperation in animal societies, 23-24 January, Cluj Napoca

for the programm see:

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Integrating Cooperation Research across Europe (INCORE)

Academic Visits & Visiting Fellowships Call for applications Applications are invited from researchers working in central and eastern Europe1 for short academic visits to research centres and laboratories participating in INCORE (see Academic Visits and Visiting Fellowships are intended to facilitate interactions between research centres working on cooperation, and address specific projects that relate to the research

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Increase of feather quality during moult: a possible implication of feather deformities in the evolution of partial moult in the great tit.

Here we investigate the change in feather quality during partial post-juvenile and complete post-breeding moult in great tit Parus major by measuring the change in the number of fault bars and feather holes on wing and tail feathers. Feathers grown during ontogeny usually are of lower quality than feathers grown following subsequent moults at independence. This is reflected by higher number of fault bars and feather holes on juveniles compared to

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Host–symbiont relationship and abundance of feather mites in relation to age and body condition of the barn swallow (Hirundo rustica): an experimental study

We analyzed the host–symbiont relationship and factors determining the abundance of feather mites among individual barn swallows (Hirundo rustica L., 1758) in two different host populations during the breeding season and postbreeding period. By experimentally removing the feather mites from the flight feathers of the birds with an insecticide, we showed that these symbiotic organisms have neither harmful nor beneficial effects on the fitness of

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Frequency and consequences of feather holes in Barn Swallows Hirundo rustica

The relationship between feather quality, estimated through the prevalence and intensity of feather holes, and the breeding performance and survival of the Barn Swallow Hirundo rustica was studied over a 5-year period. In addition, we present some indirect data on the role of chewing lice in producing the feather holes. The balanced distribution of feather holes (high prevalence, low aggregation) corresponds with the pattern of distribution of lice

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Cost of reproduction, T-lymphocyte mediated immunocompetence and health status in female and nestling Barn Swallows Hirundo rustica

We investigate the trade-off between reproductive effort, health status and T-lymphocyte acquired immunity in female and nestling barn swallows Hirundo rustica using a brood size manipulation experiment. Maternal and total feeding effort increased with experimental brood size. Parents did not fully compensate for the increased food demand of the enlarged broods and as a consequence the per capita feeding rate of nestlings decreased with increasing

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Breeding time and sex-specific health status in the barn swallow (Hirundo rustica)

Health status has been hypothesized to be an important factor associated with individual reproductive performance in birds. Sex-specific health status of early- and late-breeding barn swallows (Hirundo rustica) was studied during the prelaying and brood-rearing periods to test the prediction that early-arriving birds are in better health status than late-arriving individuals. During prelaying, early breeders (of both sexes) had lower leukocyte counts

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Habitat preference, escape behavior and cues used by feather mites to avoid molting wing feathers

We analyzed the pattern of distribution and the effect of molting on the escape behavior of feather mites on the wing feathers during the nonmolting and molting season of the barn swallow Hirundo rustica. Feather mites showed consistent preference for the second outermost primary, with a steady decrease in proximal distance and avoidance of the outermost primary. Several explanations are suggested to explain this unusual distribution. Further, analyzing

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