Paweł Szymański
Ornis Polonica 2010, 51: 14–20
https://doi.org/10.12657/ornis.2010.1.1
Abstract: The aim of the study was to assess the numbers and distribution of the Common Whitethroat in the agricultural landscape near Leszno in south-western Wielkopolska. The research was conducted in 1998–2000 and 2007–2008 on the Dąbcze study plot (10 km²) with the use of the combined version of the mapping method. During the study, an average of 36.2 breeding territories per season were recorded – from 23 in 1998 to 46 in 2000. The density varied from 0.23 to 0.46 territory/10 ha of total area. No clear trend in the changes of abundance was recorded for the local population and, similarly, no effect of changes in the local landscape structure on the Common Whitethroat numbers was observed. Changes in breeding territories distribution were caused mainly by plant succession and afforestation with the Scots Pine Pinus sylvestris. The results suggest that the Common Whitethroat population on the research plot was stable across the study period.
