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1.

001-es BibID:BIBFORM070969
035-os BibID:(WoS)000266413900007 (Scopus)67049135925
Első szerző:Fehér Zoltán
Cím:Recent range expansion of Pomatias rivulare (Eichwald, 1829) (Mollusca: Pomatiidae) in Central-Eastern Europe / Fehér Zoltán, Szabó Krisztián, Bozsó Miklós, Pénzes Zsolt
Dátum:2009
ISSN:1217-8837
Megjegyzések:We have investigated the diversity of mitochondrial COI gene sequences of Pomatias rivulare populations, originated from the western edge of the species' area. COI gene has not shown any variability, the same haplotype was found in all of the examined Hungarian, Romanian, Serbian and Montenegrin populations, which arises most probably from a rapid range expansion. Based on it, we can rule out that Hungarian populations are relicts and we can concludethat the Pannonicum, the Southern Carpathians and the Eastern Dinarids were colonized veryrecently, most probably in the Holocene.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Pomatias
biogeography
phylogeography
Pannonicum
Carpathians
Balkans
Megjelenés:Acta Zoologica Academiae Scientiarum Hungaricae. - 55 : 1 (2009), p. 67-75. -
További szerzők:Szabó Krisztián (1975-) (zoológus) Bozsó Miklós Pénzes Zsolt
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2.

001-es BibID:BIBFORM070967
Első szerző:Fehér Zoltán
Cím:Phylogeny and phylogeography of the species group (Gastropoda: Hygromiidae) / Fehér Zoltán, Szabó Krisztián, Bozsó Miklós, Pénzes Zsolt
Dátum:2009
ISSN:0947-5745
Megjegyzések:The Lozekia-Kovacsia species group comprises three species of high conservation concern, Lozekia transsilvanica (Westerlund, 1876), Lozekia deubeli (M. Kimakowicz, 1890) and Kovacsia kovacsi (Varga and L. Pintér, 1972), which occupy relatively small ranges in the Carpathian-Pannonian region. Despite their conservation concern, the phylogeny and biogeographical history of these species have not been studied by molecular methods up to now. This study, based on mitochondrial cytochrome oxidase subunit I gene sequences, has two main objectives: (i) to infer the phylogenetic relationships within the group in order to test the latest morphology-based system, proposed by Nordsieck [1993, Das System der paläarktischen Hygromiidae (Gastropoda: Stylommatophora: Helicoidea). Arch Molluskenkunde 122:1] and (ii) to reconstruct the distribution history of the three species. The monophyly and thus the systematic distinctness of the three species was confirmed, but our findings do not support the monophyly of the Lozekia genus and therefore contradict the current system of the species group. Genetic diversity was found to be much higher within L. deubeli than within the other two species, a possible explanation of this phenomenon is that L. transsilvanica and K. kovacsi are more recently evolved, younger species. Nested clade phylogeographycal analysis showed that the three species evolved by fragmentation events; probably L. deubeli and the ancestor of the other two species split first. At the intraspecific level, fragmentation events, as well as range expansion, played a significant role in the biogeographical history of this species group. As our findings are based on a single mitochondrial gene, we feel premature to propose changes in the generally accepted system and nomenclature. Further molecular phylogenetic analyses, also involving nuclear DNA sequences, should clarify if the evolutionary scenario suggested by our data is valid, and the three species can indeed be placed within the same genus, Lozekia.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Lozekia
Kovacsia
Hygromia
Carpathians
Pannon
Pannonicum
phylogeography
phylogeny
mitochondrial cytochrome oxidase subunit I
Megjelenés:Journal Of Zoological Systematics And Evolutionary Research 47 : 4 (2009), p. 306-314. -
További szerzők:Szabó Krisztián (1975-) (zoológus) Bozsó Miklós Pénzes Zsolt
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3.

001-es BibID:BIBFORM070938
Első szerző:Liker András
Cím:Genetic relatedness in wintering groups of house sparrows (Passer domesticus) / Liker András, Bókony Veronika, Kulcsár Anna, Tóth Zoltán, Szabó Krisztián, Kaholek Balázs, Pénzes Zsolt
Dátum:2009
ISSN:0962-1083
Megjegyzések:Social behaviour of group-living animals is often influenced by the relatedness ofindividuals, thus understanding the genetic structure of groups is important for theinterpretation of costs and benefits of social interactions. In this study, we investigatedgenetic relatedness in feeding aggregations of free-living house sparrows (Passerdomesticus) during the nonbreeding season. This species is a frequent model system forstudies of social behaviour (e.g. aggression, social foraging), but we lack adequateinformation on the kin structure of sparrow flocks. During two winters, we ringed andobserved sparrows at feeding stations, and used resightings to identify stable flock-members and to calculate association indices between birds. We genotyped the birdsusing seven highly polymorphic microsatellite loci, and estimated pairwise relatednesscoefficients and relatedness categories (close kin vs. unrelated) by maximum likelihoodmethod. We found that most birds were unrelated to each other in the flocks (mean ? SErelatedness coefficient: 0.06 ? 0.002), although most individuals had at least a few closerelatives in their home flock (14.3 ? 0.6% of flock-mates). Pairwise association betweenindividuals was not significantly related to their genetic relatedness. Furthermore, therewas no difference between within-flock vs. between-flock relatedness, and birds hadsimilar proportions of close kin within and outside their home flock. Finally, relatednessamong members of different flocks was unrelated to the distance between their flocks.Thus, sparrow flocks were not characterized by association of relatives, nevertheless thepresence of some close kin may provide opportunity for kin-biased behaviours to evolve.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
association,
dispersal
feeding groups
house sparrow,
kinship
Megjelenés:Molecular Ecology 18 : 22 (2009), p. 4696-4706. -
További szerzők:Bókony Veronika (alkalmazott zoológus) Kulcsár Anna Tóth Zoltán Szabó Krisztián (1975-) (zoológus) Kaholek Balázs Pénzes Zsolt
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4.

001-es BibID:BIBFORM030383
035-os BibID:(WoS)000297951000005 (Scopus)80053250376
Első szerző:Mónus Ferenc
Cím:Intersexual size and plumage differences in tree sparrows (Passer montanus) : a morphological study based on molecular sex determination / F. Mónus, K. Szabó, A. Lózsa, Z. Pénzes, Z. Barta
Dátum:2011
ISSN:1217-8837
Megjegyzések:We investigated intersexual morphological differences in tree sparrows (Passer montanus), a species being considered as sexually monomorphic. Molecular sexing of the birds was performed by PCR amplification of the sex chromosome-linked CHD1 gene introns. All measured traits (body weight, wing, tail and tarsus length, bill size and the size of the black throat patch, i.e. badge hereafter) were greater in males than in females and the sex of about 90% of the individuals was correctly categorized by means of a discriminant analysis based on the morphological measurements. Nevertheless, wing length alone was equally good predictor of the sex. Other measured traits had only moderate discriminant value. Our results do not support that tree sparrows can be sexed based on the size of their badge alone. However, some of our results suggest intersexual differences in the function of the badge.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
intersexual differences
morphology
sex determination
tree sparrow
Passer montanus
Megjelenés:Acta Zoologica Academiae Scientiarum Hungaricae. - 57 : 3 (2011), p. 269-276. -
További szerzők:Szabó Krisztián (1975-) (zoológus) Lózsa Anita Pénzes Zsolt Barta Zoltán (1967-) (biológus, zoológus)
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5.

001-es BibID:BIBFORM018929
Első szerző:Papp László (zoológus)
Cím:A Thaumaleidae légycsalád Kárpát-medencei populációi / Papp László, Földvári Mihály, Szabó Krisztián, Sipos Botond, Pénzes Zsolt
Dátum:2007
ISBN:978 963 7093 99 9
Tárgyszavak:Természettudományok Biológiai tudományok könyvfejezet
Megjelenés:A Kárpát-medence állatvilágának kialakulása : A Kárpát medence állattani értékei és faunájának kialakulása / szerk. Forró László. - p. 261-266. -
További szerzők:Földvári Mihály (1974-) (ökológus) Szabó Krisztián (1975-) (zoológus) Sipos Botond Pénzes Zsolt
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6.

001-es BibID:BIBFORM070968
Első szerző:Pénzes Zsolt
Cím:Systematic re-appraisal of the gall-usurping wasp genus Hartig, 1843 (Hymenoptera: Cynipidae: Synergini) / Pénzes Zsolt, Melika George, Bozsóki Zoltán, Bihari Péter, Mikó István, Tavakoli Majid, Pujade-Villar Juli, Fehér Balázs, Fülöp Dávid, Szabó Krisztián, Bozsó Miklós, Sipos Botond, Somogyi Kálmán, Stone Graham N.
Dátum:2009
ISSN:0307-6970
Megjegyzések:Several unanswered questions remain regarding the taxonomy and phylogeny of inquiline gallwasps (Cynipidae: Synergini), obligate inhabitants of plant galls induced primarily by other gallwasps (Cynipidae: Cynipini and Diplolepidini). Here we use morphological and molecular data to revise the inquiline genus Synophrus, members of which are notable for extensively modifying the structure of galls induced by oak gallwasp hosts on oaks in the section Cerris of Quercus subgenus Quercus in the Western Palaearctic. Previous taxonomic treatments have recognized three Western Palaearctic species of Synophrus: S. pilulae, S. politus and S. olivieri. Our results support the establishment of four additional Western Palaearctic species: Synophrus hungaricussp.n., S. libanisp.n., S. syriacussp.n. and S. hispanicussp.n. We describe and diagnose these new taxa, analyse their phylogenetic relationships, and show that Synophrus inquilines are able to impose their own gall phenotypes on those of their hosts. We provide an updated key to Synophrus.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Synophrus phylogeny
inquiline gallwasp
Megjelenés:Systematic Entomology 34 : 4 (2009), p. 688-711. -
További szerzők:Melika George Bozsóki Zoltán Bihari Péter Mikó István Tavakoli, Majid Pujade-Villar, Juli Fehér Balázs Fülöp Dávid Szabó Krisztián (1975-) (zoológus) Bozsó Miklós Sipos Botond Somogyi Kálmán Stone, Graham N.
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7.

001-es BibID:BIBFORM070941
Első szerző:Tóth Zoltán
Cím:Kinship and aggression: do house sparrows spare their relatives? / Tóth Zoltán, Bókony Veronika, Lendvai Ádám Z., Szabó Krisztián, Pénzes Zsolt, Liker András
Dátum:2009
ISSN:0340-5443 1432-0762
Megjegyzések:Kin-selection theory predicts that relatedness may reduce the level of aggression among competing group members, leading to indirect fitness benefits for kin-favoring individuals. To test this hypothesis, we investigated whether relatedness affects aggressive behavior during social activities in captive house sparrow (Passer domesticus) flocks. We found that sparrows did not reduce their aggression towards kin, as neither the frequency nor the intensity of fights differed between close kin and unrelated flock-mates. Fighting success was also unrelated to kinship and the presence of relatives in the flock did not influence the birds' dominance rank. These results suggest that the pay-offs of reduced aggression towards kin may be low in non-breeding flocks of sparrows, e.g. due to competition among relatives as predicted by a recent refinement of kin-selection theory. Our findings indicate that the significance of kin selection may be restricted in some social systems such as winter aggregations of birds.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Genetic relatedness
Aggression Dominance
Kin discrimination
House sparrow
Megjelenés:Behavioral Ecology And Sociobiology 63 : 8 (2009), p. 1189-1196. -
További szerzők:Bókony Veronika (alkalmazott zoológus) Lendvai Ádám Zoltán (1977-) (biológus) Szabó Krisztián (1975-) (zoológus) Pénzes Zsolt Liker András
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8.

001-es BibID:BIBFORM070940
Első szerző:Tóth Zoltán
Cím:Whom do the sparrows follow? The effect of kinship on social preference in house sparrow flocks / Tóth Zoltán, Bókony Veronika, Lendvai Ádám Z., Szabó Krisztián, Pénzes Zsolt, Liker András
Dátum:2009
ISSN:0376-6357
Megjegyzések:Non-aggressive social interactions between group-mates, e.g. maintenance of spatial proximity or activity synchrony are basic elements of a species' social structure, and were found to be associated with important fitness consequences in group-living animals. In the establishment of such affiliative relationships, kinship has often been identified as one of the key predictors, but this has rarely been studied in simple social groups such as flocks of gregarious birds. In this study we investigated whether kinship affects social preference, as measured by the tendency to associate with others during various social activities, in captive house sparrow (Passer domesticus) flocks where birds could interact with differently related flock-mates. We found that preference between flock-mates was correlated with familiarity from early nestling period: same-brood siblings followed their sib initiating new activities more often than non-sib birds. The strength of association between birds also tended to correlate with genetic relatedness, but this was mainly due to the effect of siblings' affiliation. Thus we concluded that house sparrows prefer the company of their siblings during social activities even well after fledging, which may facilitate kin-biased behaviours.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Genetic relatedness
Social preference
Kin discrimination
Passer domesticus
Megjelenés:Behavioural Processes 82 : 2 (2009), p. 173-177. -
További szerzők:Bókony Veronika (alkalmazott zoológus) Lendvai Ádám Zoltán (1977-) (biológus) Szabó Krisztián (1975-) (zoológus) Pénzes Zsolt Liker András
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9.

001-es BibID:BIBFORM070939
Első szerző:Tóth Zoltán
Cím:Effects of relatedness on social-foraging tactic use in house sparrows / Tóth Zoltán, Bókony Veronika, Lendvai Ádám Z., Szabó Krisztián, Pénzes Zsolt, Liker András
Dátum:2009
ISSN:0003-3472
Megjegyzések:Kin selection is often important in the evolution of reproductive behaviour, but we know much less about its significance for nonreproductive social groups. We investigated whether relatedness affects social-foraging behaviour in captive house sparrow, Passer domesticus, flocks, where birds may either search for food or exploit flockmates' food findings by scrounging. In such systems, both increased and decreased frequency of scrounging from relatives can be predicted by kin selection theory, depending on the relative costs and benefits of exploiting close kin. We found that birds used aggressive joining less often and obtained less food by that tactic from their close kin than from unrelated flockmates. In nonaggressive joinings, males also tended to join less often and obtained less food from close kin flockmates than from unrelated birds, whereas an opposite trend was found in females. Close kin males also spent less time feeding together from the same food patch than unrelated males, further suggesting reduced exploitation by male kin. These results suggest that house sparrows are able to recognize their close kin flockmates and reduce aggressive scrounging towards them, and that the sexes may differ in some forms of kin exploitation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
genetic relatedness house sparrow kin discrimination Passer domesticus scrounging
Megjelenés:Animal Behaviour 77 : 2 (2009), p. 337-342. -
További szerzők:Bókony Veronika (alkalmazott zoológus) Lendvai Ádám Zoltán (1977-) (biológus) Szabó Krisztián (1975-) (zoológus) Pénzes Zsolt Liker András
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