Kovats D.,Debrecen University |
Acs Z.,Venic Nature Conservation Foundation
Acta Zoologica Bulgarica | Year: 2013
The Carpathian basin is located on the south-western edge of the geographical range f Luscinia luscinia. Until recently, this species has only been documented in the north- astern part of Hungary (specifically in the Upper-Tisza region), where a small breeding opulation formerly occurred. In this study, we analysed mitochondrial DNA sequences of 30 ndividuals sampled at five sites along river Bódva and river Tisza via Szatmár-Bereg andscape Protection Area (LPA) to Bátorliget. The mitochondrial cytochrome c oxidase subunit I (COI) fragments were amplified and sequenced directly, and isolated haplotype f L. luscinia was distinguished from the easternmost portion of Hungary (Vámosatya, Bockerek orest, 48o11'N, 22o23'E). The new paraphyletic clade suggests a genetically well solated population of L. luscinia in eastern Hungary.
Acs Z.,Venic Nature Conservation Foundation |
Kovats D.,Debrecen University
North-Western Journal of Zoology | Year: 2013
Phylogenetic patterns of two closely related nightingale species the Luscinia megarhynchos and the L. luscinia were investigated in north-eastern part of Hungary. The mitochondrial cytochrome-c oxidase subunit I (COI) gene amplified by polymerase chain reaction (PCR) and sequenced directly to set up their phylogenetic relationships. In eastern Hungary (Szatmár-Beregi Landscape Protected Area, Vámosatya, Bockerek forest 48°11'N, 22°23'E), a new haplotype of L. luscinia is discovered. Based on our molecular result, however, no individual of L. luscinia was found in the Upper-Tisza Region (especially between Tiszabercel and Tiszatelek), where its old breeding stands formerly occurred. It suggests its population might extinct from this region, or partially shifted to undisturbed territories, probably due to ecological impoverishment of floodplain forest associations. Furthermore, it appears that range expansion of L. megarhynchos increased in those of fragmented habitats. © NwjZ, Oradea, Romania, 2013.