Tichodroma 32 (2020) Online First

Pôvodné práce

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Hniezdne spoločenstvá vtákov vo vzťahu k štruktúre urbánneho prostredia malého mesta (Sabinov, východné Slovensko)
Breeding bird communities in relation to structure of urban environment of a small town (Sabinov, E Slovakia)

Miroslav FULÍN, Stanislav GREŠ, Peter KRIŠOVSKÝ Snr, Tomáš MIŠEK & Benjamín JARČUŠKA

1 Puškinova 15, 083 01 Sabinov, Slovensko; e-mail: miro.fulin@gmail.com
2 Ul. 17. novembra 24, 083 01 Sabinov, Slovensko
3 Murgašova 8, 083 01 Sabinov, Slovensko
4 Puškinova 1, 083 01 Sabinov, Slovensko
5 Ústav ekológie lesa SAV, Ľ. Štúra 2, 960 01 Zvolen, Slovensko; e-mail: benjamin.jarcuska@gmail.com

Abstract. In the present study, we explored the effects of urban habitat attributes on richness, density and community composition of breeding birds. We performed the study during breeding season within a small town (c. 12,000 inhabitants) in eastern Slovakia in 2019. We assessed bird data and habitat characteristics for seven zones (town centre, an old detached houses’ residential area, a recent detached houses’ residential area, industrial zone, a high-rise buildings’ residential area, greenway) within the study area (347 ha). We found 40 breeding species and 2,033 breeding pairs within the area. The bird species were classified into six nesting guilds (buildingnesters, hole-nesters, tree-crown-nesters, shrub-nesters, ground-nesters, and riparian cavity-nesters) and to four groups with different affinity to urban environment. The building-nesters were the most abundant guild followed by tree-crown-nesters. We found that maximum tree height and ruderal vegetation cover correlated positively with overall species richness, and maximum number of buildings’ floors correlated positively with overall abundance (per 10 ha). Abundance of hole-nesters, tree-crown-nesters and shrub-nesters correlated positively with tree cover, and negatively with cover of hard surfaces; building-nesters’ abundance was positively correlated with maximum number of buildings’ floors. Tree cover and maximum number of buildings’ floors explained 50.7% of species composition in zones. Composition of nesting guilds differed between the town zones. Our results indicate the importance of urban vegetation to maintain higher breeding bird species richness in town environment.

Key words: bird communities, habitat, species richness, urban ecology, temperate zone

Extreme breeding effort of Common Kingfisher (Alcedo atthis)
Extrémne hniezdne úsilie rybárika riečneho (Alcedo atthis)


Department of Zoology, Faculty of Natural Sciences Comenius University, Bratislava, Ilkovičova 6, Mlynská
Dolina, 842 15 Bratislava 4, Slovak Republic; e-mail: lucia.turcokova@uniba.sk

Abstract. The Common Kingfisher Alcedo atthis has a fairly long breeding season in Central Europe. Birds start
to breed at the end of March and finish early in September. In this time they can successfully breed two, three or
four times per season. The study of kingfisher breeding biology in Danube river system (southwestern Slovakia)
brought interesting discovery. In 2018, we documented the extremely long breeding period of an individual
breeding pair of Kingfisher at the locality of Fodráska, where the first egg was laid on March 30, while the last
young were expected to leave the nest on September 30, 2018. The pair attempted to breed five times, of which
three attempts were successful with totally 19 raised chicks. The length of breeding season was estimated on
around 185 days. This is one of the longest documented breeding seasons in this species and the latest date of
breeding observed in the Central Europe.

Key words: kingfisher, breeding biology, brood number, length of breeding season

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