Somogyi Múzeumok Közleményei 14. (2000)

Fenyősi L. 2000: A Barcsi Borókás madarainak bibliográfiája (1937-1999)

358 FENYŐSI LÁSZLÓ HADARICS T. 1998: Érdekes madármegfigyelések. Túzok 3. évf. 1:18-32. KÁRPÁTI L. 1977: Csörgő réce költése a darányi Nagyberekben. Mad. Táj. szept.-okt. 1. p. KÁRPÁTI L. 1979: A Barcsi Ősborókás madárvilága. Somogyi Almanach, 30:1-52. KÁRPÁTI L. 1980: Herpeto és ornito ökofaunisztikai vizsgálatok a középrigóci (barcsi) borókásokban. Erdészeti és Faipari Tudományos Közlemények, 1980/1:8391. MAGYAR G., HADARICS T., WALICZKY Z., SCHMIDT A., NAGY T. - BANKOVICS A. 1998: Nomenclator avium Hungáriáé. Magyarország madarainak névjegyzéke. Madártani Intézet - MME - Winter Fair, Budapest - Szeged. 202 p. MARIÁN M. - PUSKÁS L. 1985: A Barcsi Borókás Tájvédelmi Körzet madárállománya. Dunántúli Dolgozatok, Természettudományi Sorozat, 5:207-232. PURGER J. J. 1998: A Dráva mente magyarországi szakaszának madárfaunája (Aves). Dunántúli Dolgozatok, Természettudományi Sorozat, 9:441-463. SZÉCHENYI F. 1942: Fészkelési adatok Somogyból. Aquila 46-49: 463. TILESCH G. 1986a: Molnárfecske (Delichon urbica) fészkében költő kék cinege (Parus caeruleus). Mad. Táj.. jan.-már.:65. TILESCH G. 1986b: Ablakpárkány alatt fészkelő barátcinege (Parus palustris). Mad. Táj.. jan.-már.:65. TILESCH G. 1986c: Ritkaságok a középrigóci erdőben. Mad. Táj.. jan.-már.:57-58. TILESCH G. 1989: Egerészölyv (Buteo buteo) különös fészkelése. Mad. Táj.. jan.-jún.:41. VASVÁRI M. 1937: Nyári képek Magyarország madárvilágából (Hanság, Hortobágy, Dél-Somogy). Debreceni Szemle, okt.-dec. A bibliography of the bird-studies made in the Juniper Grove near Bares, Somogy County (1937-99). LÁSZLÓ FENYOSI The author presents the bibliography of the bird-studies in the Juniper Grove near Bares, introduces the species recorded there, and their status, and describes the significant changes concerning the bird community over the study-period. According to his research, the ornithological literature of the Juniper Grove comprises 40 papers. 180 bird-species have been recorded since the 1930s; 75 species nest there regularly and 23 have nested at least once. During migration, wintering and from sporadic sightings, a further 82 species were recorded of which 35 regularly, and 35 rarely, appeared in the area. In the last 15 years, 12 of the species have not been recorded there and they now must be considered as having disappeared from the site. The effect of the changes in habitat has had a noticeable effect on bird-life. Extensive grazing by domestic animals effectively stopped 30 years ago, thus the area of forestpastures and open grasslands (gyep) has been reduced significantly. As a consequence, Burhinus oedicnemus and Coracias garulus have completely disappeared, the Falco tinnunculus and Falco subbuteo appear only as occasional visitors, and the number of nesting pairs of Picus viridis and Upupa epops have declined. Afforestration and spontaneous colonisation of the sandy areas by pines has resulted in these trees covering more than 40 % of the area. The pine forests support a stable community of mainly hill-species and montane species. (Drycopus martius, Turdus viscivorus, Phylloscopus trochilus, Parus eristatus, Parus ater, Certhia familiáris). The reduction of old oak and alder forests has led to a decline in the number of species, particularly those which nest in treehollows. This is probably one reason for the disappearance of Columba oenas. Fishing was banned on the area's lakes at the beginning of the 1980s. As the surface-cover by aquatic plants often exceeds 75 %, larger areas of open water can be seen on only two lakes. The bird-species which live on open water have either disappeared (eg Aythya fuligula, Mergus albellus, Sterna hirundo) or appear very rarely (eg Pandion halietus, Bucephala clangula). However, the diversity and abundance of Rallidae-species and the reed-warblers species (Acrocephalus) have increased, and some species have become regular migrants to the area (Anas clypeata, Anas penelope). The species-composition of the bird communities of the natural wetland habitats has not changed significantly during the period; however, the numbers of nesting pairs has fluctuated greatly. Fluctuations in the numbers of nesting pairs have generally matched the levels of water in the lakes, according to rainfall: e.g. considering Tachybaptus ruficollis and Aythya nyroca, numbers were higher in 1999 as compared to 1990, but lower compared to the 1970s. Ardeola ralloides has disappeared from the site, but sightings and the duration of stay of Egretta alba have increased. Author's address: FENYŐSI László Duna-Dráva National Park H-7570 Barcs Petőfi u. 10. HUNGARY