Zimska brojnost detlića Piciformes i pevačica Passeriformes okoline Jagodine

 

Winter numbers of woodpeckers and passerines in the vicinity of Jagodina

Abstract: A four-year (2007/08-2010/11) study of composition, frequency of occurrence and abundance of winter fauna of woodpeckers Piciformes and passerines Passeriformes was conducted on Đurđevo Brdo Hill near Jagodina (C Serbia, UTM EP26) using line transect of constant route 1600 m long. Tere were 19 residents, 14 winter visitors, 3 migrants and 1 passage visitor. Te most abundant species with the highest frequency of occurrence was Great Tit Parus major (index of dominance: 21.4 - 36.6%). Te highest number of species (28) was observed during the winters 2008/09 and 2009/10, followed by 2007/08 - 25 and 2010/11 - 24 species. Te average share of resident birds in the total abundance (by year)ranged from 60 to 88% (average 70.4%); winter visitors: 12.3 to 37.3% (average 29%); migrants: 0.1 to 1.5% (average 0.4%); passage visitor:0.4% (average 0.1%). Te most abundant birds by families were tits (Paridae, Aegithalidae) with 39%, followed by finches (Fringillidae) - 22%, thrushes (Turdidae) - 16.7%, woodpeckers (Picidae) - 5.2%, and buntings (Emberizidae) - 2.5%. Main characteristic of the study area is the dominance of residents, both in number of species (19) and in the total number of individuals (70%). Changing woodland region, because of its low elevation and milder and warmer temperate continental climate, is a winter sanctuary for many species and populations of birds that come from the north and mountainous regions.

 

paper in pdf: http://www.scribd.com/doc/151834881/Zimska-brojnost-detli%C4%87a-Piciformes-i-peva%C4%8Dica-Passeriformes-okoline-Jagodine#fullsc