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1.

001-es BibID:BIBFORM107997
035-os BibID:(Wos)000352630300013 (Scopus)84926419812
Első szerző:Brischoux, Francois
Cím:Marine lifestyle is associated with higher baseline corticosterone levels in birds / Francois Brischoux, Ádám Z. Lendvai, Ádám Z., Veronika Bókony, Olivier Chastel, Frédéric Angelier
Dátum:2015
ISSN:0024-4066
Megjegyzések:Because seawater is hyperosmotic relative to body fluids of most vertebrates, marine lifestyle is expected to strongly influence the physiology of marine tetrapods. Regulating the salt content of body fluids is energetically costly; and osmoregulatory organs may not totally overcome salt load and/or water loss. As a consequence, marine lifestyle should influence physiological systems involved in the maintenance of the physiological balance (homeostasis), in the mobilisation of energetic resources (e.g., to fuel salt excretion), or in the acquisition of resources (e.g., fresh water). Corticosterone (CORT) is one such ?generalist` mediator that is linked with energy expenditure, physiological stress and that activates osmoregulation. As a consequence, CORT is expected to be overall higher in marine tetrapods but this hypothesis has never been tested. Using comparative analyses, we tested this hypothesis in birds, a lineage for which available data on baseline CORT allow comparing marine versus terrestrial species, and species with or without salt glands. We found that marine species (and species with salt glands) display significantly higher baseline CORT during the wintering (but not the breeding) stage. Although salt glands` presence was tightly linked to phylogeny, our results suggest that marine lifestyle may impose a strong, but overlooked, influence on the allostasis-related physiology of marine birds. Such habitat-related variation in physiology is a major phenomenon to explore owing to its general implications for understanding the physiological basis of evolutionary transitions in habitat use.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
mineralocorticoid
osmoregulation
phylogenetic comparative analysis
salinity
salt glands
Megjelenés:Biological Journal Of The Linnean Society. - 115 : 1 (2015), p. 154-161. -
További szerzők:Lendvai Ádám Zoltán (1977-) (biológus) Bókony Veronika (alkalmazott zoológus) Chastel, Olivier Angelier, Frédéric
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2.

001-es BibID:BIBFORM067599
Első szerző:Nagy Jenő (biológus)
Cím:Life history traits, bio-climate and migratory systems of accipitrid birds of prey (Aves: Accipitriformes) / Jenő Nagy, Zsolt Végvári, Zoltán Varga
Dátum:2017
ISSN:0024-4066
Megjegyzések:Although migration is a widespread phenomenon across a range of taxa, the evolution of migratory behaviour remains insufficiently understood. Therefore, the aim of this study was to examine the relationships between migratory behaviour and life history traits of diurnal birds of prey (Accipitriformes) in a phylogenetic context and also to investigate the bioclimatic suitability of geographical ranges for migratory raptors. We performed phylogenetic generalized least square analysis, using a previously published phylogenetic tree of 179 accipitrid raptors, to identify relationships among distribution patterns, diet, hunting strategies, body measurements, clutch size, and migratory behaviour. Bioclimatic data were employed into computer learning maximum entropy modelling (Maxent) to specify differences between climatic conditions on breeding and wintering grounds. Clutch size and hunting strategies have been proved to be the most important variables in shaping distribution areas, and also the geographic dissimilarities may mask important relationships between life history traits and migratory behaviours. However, this result supports the need for distinctions among the three major migratory routes in raptors. Indeed, the West Palearctic-Afrotropical and the North-South American migratory systems are fundamentally different from the East Palearctic-Indomalayan system, owing to the presence versus absence of ecological barriers. This suggests that the migratory behaviours differ among the three main migratory routes for these species. Future studies could uncover the causes of differences among the three main flyways in more detail.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
biogeography
clutch size
comparative phylogenetic methods
ecology barriers
habitat
hunting strategies
maximum entropy modelling
raptors
Megjelenés:Biological Journal of the Linnean Society. - 121 : 1 (2017), p. 63-71. -
További szerzők:Végvári Zsolt (1969-) (biológus) Varga Zoltán (1939-) (professor emeritus, evolúcióbiológus, zoológus)
Pályázati támogatás:NTP-EFÖ-P-15-A-0495
Egyéb
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3.

001-es BibID:BIBFORM091429
Első szerző:Osváth Gergely (biológus)
Cím:Morphological characterization of flight feather shafts in four bird species with different flight styles / Gergely Osváth, Orsolya Vincze, Dragomir-Cosmin David, László Jácint Nagy, Ádám Z. Lendvai, Robert L. Nudds, Péter L. Pap
Dátum:2020
ISSN:0024-4066
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Biological Journal Of The Linnean Society. - 131 : 1 (2020), p. 192-202. -
További szerzők:Vincze Orsolya (1988-) (biológus) David, Dragomir-Cosmin Nagy László Jácint Lendvai Ádám Zoltán (1977-) (biológus) Nudds, Robert L. Pap Péter László (ökológus)
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4.

001-es BibID:BIBFORM091428
Első szerző:Pap Péter László (ökológus)
Cím:Vane macrostructure of primary feathers and its adaptations to flight in birds / Péter L. Pap, Orsolya Vincze, Csongor I Vágási, Zsuzsa Salamon, Andrea Pándi, Blanka Bálint, Andreas Nord, Robert L. Nudds, Gergely Osváth
Dátum:2019
ISSN:0024-4066
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Biological Journal Of The Linnean Society. - 126 : 2 (2019), p. 256-267. -
További szerzők:Vincze Orsolya (1988-) (biológus) Vágási Csongor István Salamon Zsuzsa Pándi Andrea Bálint Blanka Nord, Andreas Nudds, Robert L. Osváth Gergely (1985-) (biológus)
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5.

001-es BibID:BIBFORM018936
Első szerző:Pecsenye Katalin (biológus)
Cím:Genetic differentiation among the Maculinea species (Lepidoptera: Lycaenidae) in eastern Central Europe / Pecsenye Katalin, Bereczki Judit, Tihanyi Borbála, Tóth Andrea, Peregovits László, Varga Zoltán
Dátum:2007
Megjegyzések:The present study aimed to analyse the level of genetic variation in the eastern Central European (Slovenia, Hungary, and Romania/Transylvania) populations of the Large Blues (Maculinea) to analyse the pattern of differentiation both between and within the species. One objective was to compare the level of differentiation between the two disputed species (Maculinea alcon and Maculinea rebeli) with that among the other species. Imagos were collected from 23 localities in eastern Central Europe in 2002. Enzyme polymorphism was analysed using polyacrylamide gel electrophoresis. Fourteen enzyme loci were studied in all samples. In the analysis of the data, F-statistics and Nei's genetic distances were calculated and a dendrogram (unweighted pair group method with arithmetic mean) was constructed on the basis of the distance matrix. A multivariate analysis of variance was performed to study the pattern of genetic differentiation among the samples. Principal component analysis analysis was also carried out using the allele frequency data of the samples. Our results indicated that the large blues are generally less polymorphic than other European lycaenid butterflies studied. At the same time, the level of genetic differentiation was high, even among local populations within the species. A low level of genetic variation within the populations coupled with strong differentiation among them implies the effect of genetic drift. Strong genetic differentiation of four Maculinea species (M. alcon, Maculinea teleius, Maculinea nausithous, and Maculinea arion) was confirmed. Significant differentiation was not found between M. alcon and M. rebeli.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
allozyme polymorphism
Maculinea alcon
Maculinea arion
Maculinea nausithous
Maculinea rebeli
Maculinea teleius
structure of genetic variation
Megjelenés:Biological Journal of the Linnean Society. - 91 : 1 (2007), p. 11-21. -
További szerzők:Bereczki Judit (1979-) (biológus) Tihanyi Borbála Tóth Andrea Peregovits László Varga Zoltán (1939-) (professor emeritus, evolúcióbiológus, zoológus)
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6.

001-es BibID:BIBFORM078526
Első szerző:Sepp, Tuul
Cím:Feather corticosterone levels are not correlated with health or plumage coloration in juvenile house finches / Tuul Sepp, Steve Desaivre, Adam Z. Lendvai, József Németh, Kevin J. McGraw, Mathieu Giraudeau
Dátum:2018
ISSN:0024-4066
Megjegyzések:Stressful developmental conditions can have both short- and long-term effects on animal physiology and behaviour, but studies on this topic are rarely conducted in the wild and, if so, largely focus on only the first few weeks of life. To fill this gap, we tested developmental links between early-life stress and the physiology of wild-caught juveniles later during development. Specifically, we examined potential associations between feather corticosterone levels of hatchling house finches (Haemorhous mexicanus) and several phenotypic and physiological traits measured several months later in juveniles. We assessed four indices of health (oxidative damage to lipids, innate immunity, intestinal parasite infection intensity and plumage colour) and two morphological traits (body mass and tarsus length) in juveniles. Feather corticosterone content was not related to any of the juvenile traits later in development. Our results suggest that physiological variables can change rapidly during ontogeny, such that stress hormone levels in juvenile feathers could be uncoupled from the real stress levels experienced by nestlings. Instead, juvenile physiology might be more dependent on current environmental conditions than on early-life conditions (i.e. environmental matching), and this may limit the effects on fitness of poor early-developmental conditions.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
body size
carotenoid pigmentation
Haemorhous mexicanus
immunity
oxidative stress
parasitism
steroids
Megjelenés:Biological Journal of the Linnean Society. - 124 : 2 (2018), p. 157-164. -
További szerzők:Desaivre, Steve Lendvai Ádám Zoltán (1977-) (biológus) Németh József (1954-) (vegyész, analitikus) McGraw, Kevin J. Giraudeau, Mathieu
Pályázati támogatás:EFOP-3.6.2-16-2017-00009
EFOP
OTKA K113108
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
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7.

001-es BibID:BIBFORM115800
Első szerző:Szabó Norbert (PhD hallgató, biológia-kémia középiskolai tanár)
Cím:Claustral colony founding is limited by body condition: experimental feeding increases brood size of Lasius niger queens (Hymenoptera: Formicidae) / Norbert Szabó, Jenő Nagy, András Tartally
Dátum:2023
ISSN:0024-4066
Megjegyzések:Ants can found colonies in different ways. One is by claustral colony foundation, when fertilized queens typically have enough nutrients reserved in their bodies to raise the first 'nanitic' worker generation without any foraging activity. This colony-foundation strategy evolved in response to selective pressures (e.g. predators), but it limits the number of nanitic workers. We, therefore, assumed that fed queens might initially rear more nanitic workers, although feeding might also be associated with risks and stress. In this study, we analysed the effects of stress and different diets during the colony-foundation period on the success of colony founding by claustral black garden ant Lasius niger (Hymenoptera: Formicidae) queens. Our findings confirm that regularly fed claustral ant queens raise more pupae and workers, reflecting that limited brood size is a cost of safety behaviour for claustral ant queens. There is another notable aspect of our findings for laboratories: in order to maximize the size of the nanitic worker generation, they can feed claustral ant queens with crickets.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
black garden ant
carbohydrate
colony-founding strategies
diets
laboratory ant colonies
protein
starvation
stress
sugar
Megjelenés:Biological Journal Of The Linnean Society. - 140 (2023), p. 1-5. -
További szerzők:Nagy Jenő (1989-) (biológus) Tartally András (1975-) (biológus)
Pályázati támogatás:EFOP-3.6.1-16-2016-00022
EFOP
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8.

001-es BibID:BIBFORM051129
Első szerző:Tökölyi Jácint (biológus)
Cím:Climate and mammalian life histories / Jácint Tökölyi, Júlia Schmidt, Zoltán Barta
Dátum:2014
ISSN:0024-4066
Megjegyzések:Mammals display considerable geographical variation in life history traits. To understand how climatic factors might influence this variation, we analysed the relationship between life history traits-adult body size, litter size, number of litters per year, gestation lengh, neonate body mass, weaning age and age at sexual maturity - and several environmental variables quantifying the seasonality and predictability of temperature and precipitation across the distribution range of five terretrial mammal groups. Environmental factors correlated strongly with each other; therefore, we used principal components analysis to obtain orthogonal climatic predictors that could be used in multivariate models. We found that in bats, primates and even-toed ungulates adult body size tends to be larger in species inhabiting cold, dry, seasonal environments, whereas in carnivores and rodents a smaller body size in characteristic of warm, dry environments, suggesting that low food availability might limit adult size. Species inhabiting cold, dry, seasonal habitats have fewer, larger litters and shorter gestation periods; however, annual fecundity in these species is not higher, implying that the large litter size of mammals living at high latitudes is probably a consequence of time constraints imposed by strong seasonality. On the other hand, the number of litters per year and annual fecundity were greater in species inhabiting environments with higher seasonality in precipitation. Lastly, we found little evidence for specific effects of environmental variability. Our results highlight the complex effects of environmental factors in the evolution of life history traits in mammals.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
body size
Comparative analysis
macroecology
predictability
reproductive traits
seasonality
Élettudományok - Biológiai tudományok
Megjelenés:Biological Journal of the Linnean Society. - 111 (2014), p. 719-736. -
További szerzők:Schmidt Júlia Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:MTA-DE Lendület
MTA
Viselkedésökológiai Kutatócsoport
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9.

001-es BibID:BIBFORM004075
Első szerző:Tökölyi Jácint (biológus)
Cím:Seasonal colour change by moult or by the abrasion of feather tips: a comparative study / Tökölyi Jácint, Bókony Veronika, Barta Zoltán
Dátum:2008
Megjegyzések:Many birds undergo seasonal changes in plumage coloration by prebreeding moult, abrasion of cryptic feather tips, or both. Seasonal dichromatism is thought to result from optimizing coloration to the conflicting demands of different life-cycle periods, sexual selection for conspicuousness being substantial during the mating season, whereas selection for camouflage and for social signals may act in all seasons. Furthermore, energetic and time demands may constrain the extent of moult, thereby limiting colour change. We investigated the relative importance of several factors in shaping this variation in a songbird clade using phylogenetic comparative methods. We found that prebreeding moult relates most strongly to breeding onset and winter diet, demonstrating that both time and food availability constrain feather replacement. Feather abrasion was best predicted by winter flocking behaviour, and secondarily by open habitats, implying that exposure to predators and the simultaneous need for social signalling may favour the expression of partially obscured ornaments in the non-breeding season. The combined occurrence of prebreeding moult and feather abrasion was associated with the polygynous mating system, suggesting that species under strong sexual selection may employ both strategies of colour change to ensure the full expression of breeding coloration.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
moult constraints
plumage coloration
predation risk
sexual selection
social signalling
Megjelenés:Biological Journal of the Linnean Society. - 94 : 4 (2008), p. 711-721. -
További szerzők:Bókony Veronika (alkalmazott zoológus) Barta Zoltán (1967-) (biológus, zoológus)
Internet cím:elektronikus változat
DOI
elektronikus változat
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10.

001-es BibID:BIBFORM068782
Első szerző:Tóth János Pál
Cím:Mito-nuclear discordance helps to reveal the phylogeographic patterns of Melitaea ornata (Lepidoptera: Nymphalidae) / János P. Tóth, Zoltán Varga, Rudi Verovnik, Niklas Wahlberg, Alex Váradi, Judit Bereczki
Dátum:2017
ISSN:0024-4066
Megjegyzések:Periodical changes of glacial and interglacial conditions have influenced the distribution of most living organisms and shape the separation of different genetic lineages significantly. We investigated the phylogeography of a nymphalid butterfly Melitaea ornata. Our main aim was to explore the existence, the origin, and the variability of different genetic lineages based on a multilevel approach. M. ornata and its close relatives (with a focus on M. phoebe) from the Palearctic were analysed based on five gene regions (COI, EF-1a, MDH, RPS5, and wingless) using Bayesian methods to infer the phylogeographic history. The DNA-based analyses have been complemented with species distribution modelling (SDM) and Wolbachia screening. The Bayesian inference analysis showed mito-nuclear discordance in M. ornata, which is split into an eastern and a western clade. Based on mitochondrial DNA , the western clade of M. ornata clusters together with M. phoebe, while the eastern clade is well-separated. In contrast to this, the combined nuDNA-based analysis revealed that M. ornata forms a monophyletic group which is clearly separated from M. phoebe. The timing of divergence analyses suggest that the split between M. ornata and M. phoebe is about 6 million years old based on both the COI and the concatenated nuclear genes. SDM predicted considerably larger area shifts for M. phoebe than for M. ornata. LGM refugia were predicted for both species to the Mediterranean peninsulas in Europe and several Middle-East and Asian localities. The prevalence of Wolbachia infection was 88.9% in M. phoebe and only 7% in M. ornata. Our results clearly indicate a lack of ongoing hybridization between M. phoebe and M. ornata, but argue for an ancient hybridization event in the Apennine Peninsula which strongly influenced the observed split between the two clades of M. ornata.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
hybridization
Last Glacial Maximum
species distribution modelling
Wolbachia
Megjelenés:Biological Journal Of The Linnean Society. - 121 : 2 (2017), p. 267-281. -
További szerzők:Varga Zoltán Verovnik, Rudi Wahlberg, Niklas Váradi Alex (1991-) (biológus) Bereczki Judit (1979-) (biológus)
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11.

001-es BibID:BIBFORM019185
Első szerző:Varga Zoltán (professor emeritus, evolúcióbiológus, zoológus)
Cím:Types of oreal and oreotundral disjunctions in the western Palearctic / Zoltan S. Varga, Thomas Schmitt
Dátum:2008
ISSN:0024-4066
Megjegyzések:The cyclic changes of the Pleistocene between cold and warm periods resulted in antagonistic responses within two different groups of organisms: one expanding during the warm periods and retracting during the cold phases and another with opposed responses. The latter group is composed of so-called arctic and alpine species. These species have recently become the focus of phylogeographical research. However, we still lack a comprehensive characterization of the different types of alpine and arctic-alpine disjunctions in the western Palearctic. Such an overview might facilitate the selection of different model species to test the different patterns of disjunctions for congruences revealing their past distribution. Therefore, we list all alpine and arctic-alpine disjunction types of the western Palearctic using butterflies and moths as a model group. We distinguish between (1) endemics of the Alps (a) with strongly restricted and (b) with broader distributions; (2) alpine disjunct species (a) with perialpine disjunctions and (b) with a wide western Palearctic distribution; (3) oro-Mediterranean species; and (4) arctic-alpine disjunct species. These types of distributions and further subtypes are exemplified using chorological data of butterfly and moth species. In this context, we discuss the intraspecific differentiation and the differentiation among siblingspecies within and among disjunct parts of the distribution area. We also formulate hypotheses of the distribution patterns during the last ice age which might best explain the actual patterns. Finally, we suggest some case studies of genetic analyses to test the above mentioned hypotheses.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
arctic regions
biogeography
butterflies
chorology
endemisms
lepidoptera
moths
mountain regions
phylogeography
Megjelenés:Biological Journal of the Linnean Society. - 93 (2008), p. 415-430. -
További szerzők:Schmitt, Thomas
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12.

001-es BibID:BIBFORM067084
Első szerző:Vincze Orsolya (biológus)
Cím:Sources of variation in uropygial gland size in European birds / Orsolya Vincze, Csongor I. Vágási, István Kovács, Ismael Galván, Péter L. Pap
Dátum:2013
ISSN:0024-4066
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Biological Journal of the Linnean Society 110 : 3 (2013), p. 543-563. -
További szerzők:Vágási Csongor István Kovács István Galván, Ismael Pap Péter László (ökológus)
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