Összesen 2 találat.


001-es BibID:BIBFORM072272
Első szerző:Nagy Jenő (biológus)
Cím:Phylogeny and evolution of the European Goldfinch (Carduelis carduelis) and its allies - a review of the "bird of the year" / Nagy Jenő
ISSN:1215-1610 2061-9588
Megjegyzések:In 2017 the European Goldfinch (Carduelis carduelis) was voted to be the "bird of the year" in Hungary. This is a partially migrant species; most of the European populations are resident, however, its breeding range extends to East from the Sweden-Poland-Moldova axis towards the Yenisei with some of the populations wintering in Kazakhstan and South of Turkey. The European Goldfinch is classified within the Carduelinae subfamily including approximately a hundred species. Several taxonomic changes were introduced in this group during the last fifteen years, however, we still do not understand much of their origin and evolutionary history. My aim in this paper is to collect existing knowledge on the phylogeny and evolution of the Carduelinae finches and their allies, with a particular focus on the European Goldfinch and its closest relatives. Furthermore, here I point out uncertainties in different phylogenetic sources of finches, which careful consideration can be useful in similar evolutionary studies. Finally, I summarise some vision for future research.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
Megjelenés:Ornis Hungarica 25 : 2 (2017), p. 1-10. -
Internet cím:Szerző által megadott URL
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001-es BibID:BIBFORM054912
Első szerző:Nagy Jenő (biológus)
Cím:Phylogeny, historical biogeography and the evolution of migration in accipitrid birds of prey (Aves: Accipitriformes) / Jenő Nagy, Jácint Tökölyi
ISSN:1215-1610 2061-9588
Megjegyzések:Migration plays a fundamental part in the life of most temperate bird species. The regular,large-scale seasonal movements that characterize temperate migration systems appear tohave originated in parallel with the postglacial northern expansion of tropical species. Migratoriness is also influencedby a number of ecological factors, such as the ability to survive harsh winters. Hence, understandingthe origins and evolution of migration requires integration of the biogeographic history and ecology of birds in aphylogenetic context. We used molecular dating and ancestral state reconstruction to infer the origins and evolutionarychanges in migratory behavior and ancestral area reconstruction to investigate historical patterns of rangeevolution in accipitrid birds of prey (Accipitriformes). Migration evolved multiple times in birds of prey, the earliestof which occurred in true hawks (Accipitrinae), during the middle Miocene period, according to our analyses.In most cases, a tropical ancestral distribution was inferred for the non-migratory ancestors of migratory lineages.Results from directional evolutionary tests indicate that migration evolved in the tropics and then increasedthe rate of colonization of temperate habitats, suggesting that temperate species might be descendants of tropicalones that dispersed into these seasonal habitats. Finally, we found that diet generalization predicts migratorinessin this group.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban
ancestral area reconstruction
annual cycle
diet specialization
diurnal birds of prey
molecular dating
Élettudományok - Biológiai tudományok
Megjelenés:Ornis Hungarica. - 22 : 1 (2014), p. 15-35. -
További szerzők:Tökölyi Jácint (1984-) (biológus)
Pályázati támogatás:MTA-DE Lendület
Viselkedésökológiai Kutatócsoport
MTA-ELTE-MTM Ecology Research Group
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
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