Zgrupowania ptaków lęgowych zasiedlających parki w Siedlcach pomiędzy rokiem 1968 a 2008
Journal Title: KULON - Year 2014, Vol 19, Issue
Abstract
A successive inventory of breeding fauna was conducted in three parks of Siedlce. In the Ogińskich’s Park (1.5 ha), 28 breeding species were noted in 2007 and 29 in 2008. In 2007, 1169.5 pairs were nesting, including as many as 806 pairs (68.9%) of the Rook Corvus frugilegus, no more nesting in 2008 (early-spring frightening). The density of breeding pairs without the Rook (242.3 p/10 ha) in 2007 was by 8% lower than in 2008 (264.3 p/10 ha). In the Dziki Park (3.7 ha), 27 species nested in 2008, represented by 156.5 pairs with a density of 42.3 p/10 ha. In the Nowy Park (3.2ha), 77 pairs of 19 species nested in a density of 240.6 p/10 ha (table 3). Among nesting guilds, tree cavity nesters were most abundant in all these parks. Between 1968-2008, the number of species in the Ogińskich’s Park varied between 24-32, and numbers of birds fluctuated from 118 to 1169 (with the Rook). In the late 1960s, 120 pairs nested in this largest park, followed by an increase to over 300 pairs in 1980, then by significant declines to the lowest level of 106 pairs in 1986, and again by an increase to a maximum number of almost 400 pairs (without the Rook) in 2007-2008. A statistically significant trend was found for the Garden Warbler Sylvia borin, Marsh Tit Poecile palustris and Tree Sparrow Passer montanus (decline), and: Wood Pigeon Columba palumbus, Chaffinch Fringilla coelebs, Blackbird Turdus merula, Robin Erithacus rubecula, Short-toed Tree Creeper Certhia brachydactyla, Chiffchaff Phylloscopus collybita, Great Spotted Woodpecker Dendrocopos major, and Feral Pigeon Columba livia f. urbana (increase). Numerous populations of the Wood Pigeon, Blackbird and Blackcap – rare nesters in earlier years – require special attention. It is difficult to explain the decline of the Collard Turtle Dove, especially in the face of its good situation in neighboring areas.
Authors and Affiliations
Andrzej Dombrowski
Keywords
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