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2007 | 55 | 1 |

Tytuł artykułu

Effect of weather change on flock size of the Snow Bunting [Plectrophenax nivalis L.] wintering in South-Western Poland

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
In winter 2004/2005 some exceptionally large (on the Central European scale) concentrations of Snow Bunting (Plectrophenax nivalis), up to 1600 individuals, were recorded in Lower Silesia (south-western Poland). The Snow Bunting flock size was positively correlated with the mean daily air temperature (P = 0.002). The average flock size during snowless days was 11 times higher than in the snowy period (P = 0.0017). One of the factors encouraging the more abundant wintering of Snow Bunting in Central Europe may be the milder climatic conditions, especially higher temperature and lack of snow cover. During the last four decades the rise of mean temperatures and shrinking of the snow cover period in winter months (December-February) have been observed in Lower Silesia.

Wydawca

-

Rocznik

Tom

55

Numer

1

Opis fizyczny

p.181-185,fig.,ref.

Twórcy

autor
  • Wroclaw University, Sienkiewicza 21, 50-335 Wroclaw, Poland
autor

Bibliografia

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Bibliografia

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