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<dc:title xml:lang="en"><![CDATA[Acta Ornithologica, vol. 36, no. 1]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Ekologia lęgowa oknówki na Pomorzu]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Breeding of the house martin]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Population density and breeding ecology of the house martin Delichon urbica in Pomerania (NW Poland)]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Acta Ornithologica, vol. 36, no. 1]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Ekologia lęgowa oknówki na Pomorzu]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Breeding of the house martin]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Population density and breeding ecology of the house martin Delichon urbica in Pomerania (NW Poland)]]></dc:title>
<dc:creator><![CDATA[Górska, Ewa]]></dc:creator>
<dc:subject xml:lang="en"><![CDATA[House Martin]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[breeding biology]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[breeding ecology]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Poland]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Pomerania]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[breeding birds]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[congresses]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[population density]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[swallows]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[birds]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Delichon urbica]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Hirundinidae]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Aves]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[1985-95]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Oknówka -- biologia lęgowa -- Polska -- Pomorze (region) -- konferencje [KABA]]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Ptaki lęgowe [KABA]]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[liczebność]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[zagęszczenie populacji]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[jaskółkowate]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Delichon urbica]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Hirundinidae]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Aves]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[1985-95]]></dc:subject>
<dc:description xml:lang="en"><![CDATA[Studies were carried out in 23 rural sample plots in NW Poland in 1985-1995 (total study area - 5 117 km2, including 635 villages and other settlements). The density of the breeding population in the overall landscape varied between 2.2 and 16.2 nests/km2, and in built-up areas from 207 to 1303 nests/km2. In the first brood, begun in mid-May, the average clutch was 3.99 eggs; 47% of clutches contained 4 eggs, 23% - 3 eggs and 21% - 5 eggs. In the second brood the average clutch was 3.61 eggs. Clutches of 4 and 3 eggs accounted for 49 and 26% respectively of the total number of clutches. 49% of pairs from the first broods were also involved in second ones. Hatching success (number of young hatched compared with the number of eggs laid) was 94.3% in the first brood and 95.8% in the second. Fledging success (number of young fledged compared to the number hatched) was 97.5% and 95.1% respectively and final breeding success (number of fledglings compared to the number of eggs laid) was 91.9% and 91.2%. A statistical pair produced 5.3 young per breeding season.]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Referat wygłoszony na Second Meeting of the European Ornithologists' Union]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Bibliogr. p. 83]]></dc:description>
<dc:description xml:lang="en"><![CDATA[P. [79]-84 : ill. ; 27 cm]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Abstract in Polish]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Studies were carried out in 23 rural sample plots in NW Poland in 1985-1995 (total study area - 5 117 km2, including 635 villages and other settlements). The density of the breeding population in the overall landscape varied between 2.2 and 16.2 nests/km2, and in built-up areas from 207 to 1303 nests/km2. In the first brood, begun in mid-May, the average clutch was 3.99 eggs; 47% of clutches contained 4 eggs, 23% - 3 eggs and 21% - 5 eggs. In the second brood the average clutch was 3.61 eggs. Clutches of 4 and 3 eggs accounted for 49 and 26% respectively of the total number of clutches. 49% of pairs from the first broods were also involved in second ones. Hatching success (number of young hatched compared with the number of eggs laid) was 94.3% in the first brood and 95.8% in the second. Fledging success (number of young fledged compared to the number hatched) was 97.5% and 95.1% respectively and final breeding success (number of fledglings compared to the number of eggs laid) was 91.9% and 91.2%. A statistical pair produced 5.3 young per breeding season.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Referat wygłoszony na Second Meeting of the European Ornithologists' Union]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Bibliogr. s. 83]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[S. [79]-84 : il. ; 27 cm]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Streszcz. pol.]]></dc:description>
<dc:publisher><![CDATA[Muzeum i Instytut Zoologii PAN]]></dc:publisher>
<dc:contributor><![CDATA[Polska Akademia Nauk. Muzeum i Instytut Zoologii]]></dc:contributor>
<dc:contributor><![CDATA[Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)]]></dc:contributor>
<dc:date><![CDATA[2001]]></dc:date>
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<dc:identifier><![CDATA[oai:rcin.org.pl:45288]]></dc:identifier>
<dc:source xml:lang="en"><![CDATA[MiIZ PAN, call no. P.257, Vol. 36, No 1]]></dc:source>
<dc:source xml:lang="en"><![CDATA[MiIZ PAN, call no. P.4568, Vol. 36, No 1]]></dc:source>
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<dc:source xml:lang="pl"><![CDATA[MiIZ PAN, sygn. patrz sygn. czas. P.257, Vol. 36, No 1]]></dc:source>
<dc:source xml:lang="pl"><![CDATA[MiIZ PAN, sygn. patrz sygn. czas. P.4568, Vol. 36, No 1]]></dc:source>
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<dc:language><![CDATA[eng]]></dc:language>
<dc:language><![CDATA[pol]]></dc:language>
<dc:relation><![CDATA[Acta Ornithologica]]></dc:relation>
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