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1.

001-es BibID:BIBFORM103319
035-os BibID:(Wos)000467428400001 (Scopus)85065121256
Első szerző:Bókony Veronika (alkalmazott zoológus)
Cím:Changing Migratory Behaviors and Climatic Responsiveness in Birds / Bókony Veronika, Barta Zoltán, Végvári Zsolt
Dátum:2019
ISSN:2296-701X
Megjegyzések:Change of avian migratory behavior is one of the best-studied phenomena presumably associated with contemporary climate change, yet to what degree these behavioral changes represent responses to climate warming is still controversial. We investigated interspecific variation in migratory behavior over three decades at a Central-European site, testing whether the type and extent of behavioral change are predicted by species' responsiveness to short-term variation in large-scale climatic indices. We found that species with earlier arrivals at the breeding grounds after winters with higher North-Atlantic Oscillation indices were more likely to overwinter at the study site. This behavior was more frequent in the second half than in the first half of the study, although the extent of this change was not predicted quantitatively by short-term climatic responsiveness. Overwintering was more prevalent in short-distance migrants with more complex diets and larger population sizes. Furthermore, species arriving earlier after summers with higher Sahel rainfall indices increasingly advanced their first arrival date, whereas species that do not molt in the pre-breeding season increased their frequency of overwintering in more recent years. Our results demonstrate that interspecific variation in short-term climatic responsiveness predicts long-term changes in migratory behaviors, supporting that the latter are responses to climate change. Furthermore, the type of response (advancing arrivals or overwintering near the breeding grounds) depends on life history. Finally, we found that overwintering behavior during the study period predicted subsequent trends in population size, suggesting that information on temporal changes in migratory strategy may help conservation planning and risk assessment.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Frontiers in Ecology and Evolution. - 7(2019), p. 1-12. -
További szerzők:Végvári Zsolt (1969-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:NKFIH-K-112527
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2.

001-es BibID:BIBFORM120593
035-os BibID:(Scopus)85127563138 (WOS)000778049900003
Első szerző:Cooney, Christopher R.
Cím:Latitudinal gradients in avian colourfulness / Christopher R. Cooney, Yichen He, Zoë K. Varley, Lara O. Nouri, Christopher J. A. Moody, Michael D. Jardine, András Liker, Tamás Székely, Gavin H. Thomas?
Dátum:2022
ISSN:2397-334X
Megjegyzések:It has long been suggested that tropical species are generally more colourful than temperate species, but whether latitudinal gradients in organismal colourfulness exist remains controversial. Here we quantify global latitudinal trends in colourfulness (within-individual colour diversity) by collating and analysing a photographic dataset of whole-body plumage reflectance information for >4,500 species of passerine birds. We show that male and female birds of tropical passerine species are generally more colourful than their temperate counterparts, both on average and in the extreme. We also show that these geographic gradients can be explained in part by the effects of several latitude-related factors related to classic hypotheses for climatic and ecological determinants of organismal colourfulness. Taken together, our results reveal that species' colourfulness peaks in the tropics for passerine birds, confirming the existence of a long-suspected yet hitherto elusive trend in the distribution of global biodiversity. After generating a dataset on plumage colouration for over 4,500 bird species, the authors show that tropical species are more colourful than temperate species, confirming a long-held but difficult-to-prove belief.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
PHYLOGENETIC ANALYSIS
SEXUAL SELECTION
PLUMAGE COLOR
BODY-SIZE
EVOLUTION
BIRDS
BUTTERFLIES
PATTERNS
MODELS
SPACE
Megjelenés:Nature Ecology & Evolution. - 6 : 5 (2022), p. 622-629. -
További szerzők:He, Yichen Varley, Zoë K. Nouri, Lara O. Moody, Christopher J. A. Jardine, Michael D. Liker András Székely Tamás (1959-) (biológus) Thomas, Gavin H.
Pályázati támogatás:ÉLVONALKKP-126949, K-116310
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3.

001-es BibID:BIBFORM107665
035-os BibID:(WoS)000417239200011 (Scopus)85021384601
Első szerző:Fanson, Kerry V.
Cím:Inter-laboratory variation in corticosterone measurement: Implications for comparative ecological and evolutionary studies / Kerry V. Fanson, Zoltán Németh, Marilyn Ramenofsky, John C. Wingfield, Katherine L. Buchanan
Dátum:2017
ISSN:2041-210X
Megjegyzések:Interspecific comparisons of endocrine data are useful for drawing broad conclusions concerning the role of ecological variables in the evolution of physiological pathways. However, comparisons of endocrine data generated by different research groups are problematic, due to inter-laboratory variation in measured hormone values. To date, we know of no study which has quantified the extent of inter-laboratory variation in the measurement of hormone levels, outside of biomedical studies. To evaluate the extent to which laboratories differ in their measurement of hormones, we prepared seven samples of avian plasma with known concentrations of corticosterone and sent them for blind analyses to 19 laboratories and asked them to report the methods used and the values obtained. Both absolute hormone concentrations and the ratios between samples were equally variable, up to an order of magnitude different for some concentrations. Laboratory identity accounted for more than 80% of the variation in reported corticosterone, but we could not identify any methodological factors that consistently contributed to this inter-laboratory variation. In addition, laboratory measurement error was significantly correlated with the latitude of the primary study species for each laboratory, suggesting that inter-laboratory variation has the potential to drive trends in corticosterone datasets. Inter-laboratory variation in corticosterone measurement may have serious implications for quantitative comparisons of endocrine values across laboratories, although comparisons of qualitative patterns may be more robust because rank order of the samples was relatively consistent across laboratories. Ignoring laboratory effect and the non-independence of data may lead to an inflated rate of Type I error and spurious correlations.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
comparative endocrinology
corticosterone
enzyme immunoassay
measurement error
meta-analysis
radioimmunoassay
stress
Megjelenés:Methods in Ecology and Evolution. - 8 : 12 (2017), p. 1745-1754. -
További szerzők:Németh Zoltán (1976-) (biológus) Ramenofsky, Marilyn Wingfield, John C. Buchanan, Katherine L.
Pályázati támogatás:NPD 121013
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4.

001-es BibID:BIBFORM116725
035-os BibID:(Scopus)85119406281 (WoS)000719833200001
Első szerző:Fresneau, Nolwenn
Cím:Sex Role Reversal and High Frequency of Social Polyandry in the Pheasant-Tailed Jacana (Hydrophasianus chirurgus) / Nolwenn Fresneau, Ya-Fu Lee, Wen-Chen Lee, András Kosztolányi, Tamás Székely, András Liker
Dátum:2021
ISSN:2296-701X
Megjegyzések:In a few species, males invest more than females in parental care while the females invest in mating competition and producing multiple broods for several mates. Species in the family Jacanidae are commonly used for studying this type of breeding system (called sex-role reversal), and previous studies found discrepancies and variation between species in the expected characteristics of reversed sex roles. Yet, a better understanding of sex role differences in breeding behavior in such species is crucial for disentangling possible evolutionary mechanisms leading to this peculiar breeding system. Sex-role reversal in the pheasant-tailed jacana Hydrophasianus chirurgus has been documented long time ago. Since the very early observation of this species, however, there was no attempt to provide a comprehensive and quantitative description of their breeding. This study aims to fill these knowledge gaps by investigating the sex role differences in the breeding behavior of pheasant-tailed jacanas, by observing and monitoring a breeding population in Taiwan. We focused on three main characteristics of sex-role reversal: (1) competition between females for access to males, such as agonistic and courtship behaviors, (2) polyandrous mating, and (3) male-only care. As expected, we found that females provide most of the territory defense toward conspecifics. Males also participated in agonistic behaviors, although less frequently than females. Furthermore, contrary to what was expected, we found that males spent more time than females on courtship behavior. Polyandrous females performed mating and laying sequentially with different mates but maintained the pair bonds simultaneously with multiple males. For the first time for the species, we could estimate that the average number of mates per female (i.e., degree of polyandry) was 2.4 and that at least 81.8% of the females in the population were polyandrous. Finally, our observations corroborated that brood care is predominantly provided by males, nevertheless females were also participating to some degree in brood attendance but never in direct care (i.e., brooding). This study highlights that some aspects of polyandrous breeding might deviate from stereotyped view on sex-role reversal, and stress the importance of further within species and comparative studies in order to fully understand the mechanisms leading to sex-role reversal. Copyright ? 2021 Fresneau, Lee, Lee, Kosztolányi, Székely and Liker.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Jacanidae
male-only care
polyandry
sex-role reversal
sexual competition
Megjelenés:Frontiers in Ecology and Evolution. - 9 (2021), p.1-15. -
További szerzők:Lee, Ya-Fu Lee, Wen-Chen Kosztolányi András (1971-) (biológus) Székely Tamás (1959-) (biológus) Liker András
Pályázati támogatás:KH130430
Egyéb
PD134414
Egyéb
NN125642
Egyéb
ÉLVONAL KKP-126949
Egyéb
ÉLVONAL K-116310
Egyéb
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5.

001-es BibID:BIBFORM106970
035-os BibID:(Wos)000767325600005 (Scopus)85125793042
Első szerző:Jetz, Walter
Cím:Biological Earth observation with animal sensors / Walter Jetz, Grigori Tertitski, Roland Kays, Uschi Mueller, Martin Wikelski.... Zoltán Németh
Dátum:2022
ISSN:0169-5347
Megjegyzések:Space-based tracking technology using low-cost miniature tags is now delivering data on fine-scale animal movement at near-global scale. Linked with remotely sensed environmental data, this offers a biological lens on habitat integrity and connectivity for conservation and human health; a global network of animal sentinels of environmental change.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
animal tracking, ecology, global change
Megjelenés:Trends In Ecology & Evolution. - 37 : 4 (2022), p. 293-298. -
További szerzők:Tertitski, Grigori Kays, Roland Mueller, Uschi Wikelski, Martin Németh Zoltán (1976-) (biológus)
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6.

001-es BibID:BIBFORM121025
035-os BibID:(Scopus)85115923210 (WoS)000732522300009
Első szerző:Kubelka, Vojtech
Cím:Animal migration to northern latitudes: environmental changes and increasing threats / Vojtěch Kubelka, Brett K. Sandercock, Tamás Székely, Robert P. Freckleton
Dátum:2022
ISSN:0169-5347
Megjegyzések:Every year, many wild animals undertake long-distance migration to breed in the north, taking advantage of seasonally high pulses in food supply, fewer parasites, and lower predation pressure in comparison with equatorial latitudes. Growing evidence suggests that climate-change-induced phenological mismatches have reduced food availability. Furthermore, novel pathogens and parasites are spreading northwards, and nest or offspring predation has increased at many Arctic and northern temperate locations. Altered trophic interactions have decreased the reproductive success and survival of migratory animals. Reduced advantages for long-distance migration have potentially serious consequences for community structure and ecosystem function. Changes in the benefits of migration need to be integrated into projections of population and ecosystem dynamics and targeted by innovative conservation actions. ? 2021 Elsevier Ltd
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
climate change
food supply
nest predation
parasites
population dynamics
trophic interactions
Megjelenés:Trends In Ecology & Evolution. - 37 : 1 (2022), p. 30-41. -
További szerzők:Sandercock, Brett K. Székely Tamás (1959-) (biológus) Freckleton, Robert P.
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7.

001-es BibID:BIBFORM104501
035-os BibID:(WOS)000838658000001 (Scopus)85136841302
Első szerző:Marton Attila (biológus)
Cím:Oxidative physiology is weakly associated with pigmentation in birds / Attila Marton, Csongor I. Vágási, Orsolya Vincze, Veronika Bókony, Péter L. Pap, Laura Pǎtraș, Janka Pénzes, Lőrinc Bǎrbos, Attila Fülöp, Gergely Osváth, Simon Ducatez, Mathieu Giraudeau
Dátum:2022
ISSN:2045-7758
Megjegyzések:The mechanistic link between avian oxidative physiology and plumage coloration has attracted considerable attention in past decades. Hence, multiple proximal hypotheses were proposed to explain how oxidative state might covary with the production of melanin and carotenoid pigments. Some hypotheses underscore that these pigments (or their precursors, e.g., glutathione) have antioxidant capacities or function as molecules storing the toxic excess of intracellular compounds, while others highlight that these pigments can act as pro-oxidants under specific conditions. Most studies addressing these associations are at the intraspecific level, while phylogenetic comparative studies are still scarce, though needed to assess the generality of these associations. Here, we tested whether plumage and bare part coloration were related to oxidative physiology at an interspecific level by measuring five oxidative physiology markers (three nonenzymatic antioxidants and two markers of lipid peroxidative damage) in 1387 individuals of 104 European bird species sampled during the breeding season, and by scoring plumage eumelanin, pheomelanin, and carotenoid content for each sex and species. Only the plasma level of reactive oxygen metabolites was related to melanin coloration, being positively associated with eumelanin score and negatively with pheomelanin score. Thus, our results do not support the role of antioxidant glutathione in driving variation in melanin synthesis across species. Furthermore, the carotenoid scores of feathers and bare parts were unrelated to the measured oxidative physiology parameters, further suggesting that the marked differences in pigmentation across birds does not influence their oxidative state.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
antioxidant
carotenoid
eumelanin
glutathione
oxidative stress
pheomelanin
Megjelenés:Ecology and Evolution. - 12 : 8 (2022), p. 1-12. -
További szerzők:Vágási Csongor István Vincze Orsolya (1988-) (biológus) Bókony Veronika (alkalmazott zoológus) Pap Péter László (ökológus) Pătraş, Laura Pénzes Janka Bărbos Lőrinc Fülöp Attila (1987-) (biológus) Osváth Gergely (1985-) (biológus) Ducatez, Simon Giraudeau, Mathieu
Pályázati támogatás:ÚNKP-21-5-DE-480
Egyéb
ÚNKP-21-4
Egyéb
K135016
OTKA
ÚNKP-21-5
Egyéb
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8.

001-es BibID:BIBFORM094519
035-os BibID:(WOS)000649974300001 (Scopus)85105960965
Első szerző:Marton Attila (biológus)
Cím:Quintuple parasitism of a great reed warbler nest by common cuckoos / Marton Attila
Dátum:2021
ISSN:2045-7758
Megjegyzések:Multiple parasitism in obligate avian brood parasites occurs when several brood parasitic females lay their eggs in the nest of the same host. While multiple parasitism is common in the highly social, nonevicting cowbird species (Molothrus sp.), in which multiple parasitic nestlings can be raised simultaneously by the same hosts, it is less common in the case of cuckoo species (Cuculus sp.). The first cuckoo nestling to hatch from the egg evicts all nestmates; therefore, it is costly for cuckoo females to lay eggs in already parasitized nests. However, this can occur in sites with very high parasitism rates, and it can even increase the breeding success of the brood parasites, as the presence of multiple parasitic eggs in the nest of the host decreases rejection rates. Here, we present a case of a quintuple brood parasitism of a great reed warbler (Acrocephalus arundinaceus) nest, an extreme form of multiple brood parasitism.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Acrocephalus arundinaceus
brood parasitism
Cuculus canorus
multiple parasitism
Megjelenés:Ecology and Evolution. - 11 : 13 (2021), p. 8420-8423. -
Pályázati támogatás:ÚNKP-19-3-I-DE-368
Egyéb
ÚNKP-20-3-II-DE-368
Egyéb
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9.

001-es BibID:BIBFORM105609
035-os BibID:(WoS)000824385400001 (Scopus)85135091844
Első szerző:Miklós Máté (biológus)
Cím:Seasonal variation of genotypes and reproductive plasticity in a facultative clonal freshwater invertebrate animal (Hydra oligactis) living in a temperate lake / Máté Miklós, Levente Laczkó, Gábor Sramkó, Zoltán Barta, Jácint Tökölyi
Dátum:2022
ISSN:2045-7758
Megjegyzések:Facultative sexual organisms combine sexual and asexual reproduction within a single life cycle, often switching between reproductive modes depending on environmental conditions. These organisms frequently inhabit variable seasonal environments, where favorable periods alternate with unfavorable periods, generating temporally varying selection pressures that strongly influence life history decisions and hence population dynamics. Due to the rapidly accelerating changes in our global environment today, understanding the population dynamics and genetic changes in facultative sexual populations inhabiting seasonal environments is critical to assess and prepare for additional challenges that will affect such ecosystems. In this study, we aimed at obtaining insights into the seasonal population dynamics of the facultative sexual freshwater cnidarian Hydra oligactis through a combination of restriction siteassociated sequencing (RAD-Seq) genotyping and the collection of phenotypic data on the reproductive strategy of field-collected hydra strains in a standard laboratory environment. We reliably detected 42 MlGs from the 121 collected hydra strains. Most of MLGs (N =?35, 83.3%) were detected in only one season. Five MLGs (11.9%) were detected in two seasons, one (2.4%) in three seasons and one (2.4%) in all four seasons. We found no significant genetic change during the 2?years in the study population. Clone lines were detected between seasons and even years, suggesting that clonal lineages can persist for a long time in a natural population. We also found that distinct genotypes differ in sexual reproduction frequency, but these differences did not affect whether genotypes reappeared across samplings. Our study provides key insights into the biology of natural hydra populations, while also contributing to understanding the population biology of facultative sexual species inhabiting freshwater ecosystems.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
clonal reproduction
facultative sexuality
phenotypic plasticity
population genomics
RAD-seq
Megjelenés:Ecology and Evolution. - 12 : 7 (2022), p. 1-13. -
További szerzők:Laczkó Levente (1992-) (biológus) Sramkó Gábor (1981-) (biológus) Barta Zoltán (1967-) (biológus, zoológus) Tökölyi Jácint (1984-) (biológus)
Pályázati támogatás:NKFIH-FK 124164
Egyéb
TKP2020-IKA-04
Egyéb
ÚNKP21-4-I
OTKA
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10.

001-es BibID:BIBFORM102036
035-os BibID:(WOS)000779394000001 (Scopus)85128028977
Első szerző:Montoya, Bibiana
Cím:Does IGF-1 Shape Life-History Trade-Offs? Opposite Associations of IGF-1 With Telomere Length and Body Size in a Free-Living Bird / Bibiana Montoya, Zsófia Tóth, Ádám Z. Lendvai, Antoine Stier, François Criscuolo, Sandrine Zahn, Pierre Bize
Dátum:2022
ISSN:2296-701X
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Frontiers in Ecology and Evolution. - 10 (2022), p. 1-6. -
További szerzők:Tóth Zsófia (1991-) (biológus) Lendvai Ádám Zoltán (1977-) (biológus) Stier, Antoine Criscuolo, François Zahn, Sandrine Bize, Pierre
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11.

001-es BibID:BIBFORM113082
035-os BibID:(WoS)001020198800001 (Scopus)85165433391
Első szerző:Nagy Antal (biológus)
Cím:Nontarget catches of traps with chemical lures may refer to the flower-visitation, probable pollination, and feeding of bush crickets (Ensifera: Tettigoniidae) / Antal Nagy, Aletta Ősz, Miklós Tóth, István András Rácz, Szilvia Kovács, Szabolcs Szanyi
Dátum:2023
ISSN:2045-7758
Megjegyzések:The diurnal bees, lepidopterans, and other pollinators are among the most studied flower-visiting insect taxa. They mostly play distinct functions in temperate grasslands and ecotones of grassland-forest mosaics (such as in forest steppes). Although orthopterans are widely distributed in these habitats, however, their flower visitation is nearly unknown, especially in the temperate zone. During the development of traps with chemical lures to catch Lepidoptera pests, large numbers of Orthoptera were caught that provide a chance for studying the flower visitation and odor and indirectly the host plant preference of seven temperate zone Tettigoniidae species. Data on the attractivity of isoamyl alcohol-based semisynthetic lures for Meconema thalassinum and efficiency of phenylacetaldehyde-based lures on Leptophyes albovittata and Phaneroptera falcata were reported for the first time. Additionally, analysis of nature photos collected from internet sources, as part of a passive citizen science also supports the revealed preference of these species. Based on photos, the studied orthopterans mainly visit Asteraceae species including the most preferred Tanacetum vulgare, Pulicaria dysenterica, Achillea millefolium, Solidago canadensis, and Centaurea scabiosa. Based on catches of volatile traps, the first data were recorded on the attractivity of phenylacetaldehyde- and isoamyl alcohol-based lures on three temperate zone Orthoptera species. Results of a passive citizen science study strengthen these results that may increase the knowledge on the host plant and habitat preference of Orthoptera species.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
floriphagous
floriphilic
orthoptera
pollination
volatile traps
Megjelenés:Ecology and Evolution. - 13 : 7 (2023), p. 1-10. -
További szerzők:Ősz Aletta (1995-) (természetvédelmi mérnök) Tóth Miklós (biológus) Rácz István András (1949-) (biológus) Kovács Szilvia (1972-) (gyombiológia) Szanyi Szabolcs (1988-) (biológus, ökológus)
Pályázati támogatás:PD 138329
OTKA
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12.

001-es BibID:BIBFORM121717
035-os BibID:(Scopus)85193923533 (WoS)001229921200001
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:Sex-specific effects of dietary restriction on physiological variables in Japanese quails / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Brigitta Csernus, James K. Lugata, Renáta Knop, Csaba Szabó, Levente Czeglédi, Ádám Z. Lendvai
Dátum:2024
ISSN:2045-7758
Megjegyzések:Nutritional limitation is a common phenomenon in nature that leads to trade-offsamong processes competing for limited resources. These trade-offs are mediatedby changes in physiological traits such as growth factors and circulating lipids.However, studies addressing the sex-specific effect of nutritional deficiency onthese physiological variables are limited in birds. We used dietary restriction tomimic the depletion of resources to various degrees and investigated sex-specificeffects on circulating levels of insulin-like growth factor 1 (IGF-1) and triglyceridesin Japanese quails (Coturnix japonica) subjected to ad libitum, 20%, 30% or 40%restriction of their daily requirement, for 2 weeks. We also explored the associa-tion of both physiological variables with body mass and egg production. While di-etary restriction showed no effects on circulating IGF-1, this hormone exhibiteda marked sexual difference, with females having 64.7% higher IGF-1 levels thanmales. Dietary restriction significantly reduced plasma triglyceride levels in bothsexes. Females showed more than six-fold higher triglyceride levels than males.Triglyceride levels were positively associated with body mass in females whileshowed not association in males. Overall, our findings revealed sex-specific expres-sion of physiological variables under dietary restriction conditions, which coincidewith body size
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
body mass
Coturnix japonica
IGF-1
nutritional limitation
sex difference
triglycerides
Megjelenés:Ecology and Evolution. - 14 : 5 (2024), p. 1-28. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Knop Renáta (1983-) (állatorvos) Szabó Csaba (1968-) (agrármérnök) Czeglédi Levente (1977-) (agrármérnök) Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:K139021
OTKA
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DOI
Intézményi repozitóriumban (DEA) tárolt változat
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