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Bird species number in farmland: iteractions between point counts number and landscape structure
Subtitle:Acta Ornithologica, vol. 35, no. 1 ; Ocena liczby gatunków na obszarach rolniczych metodą punktową: znaczenie struktury krajobrazu i liczby punktów ; Assesing the number of birds species in farmland
Creator: Contributor:Polska Akademia Nauk. Muzeum i Instytut Zoologii ; Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)
Publisher:Muzeum i Instytut Zoologii PAN
Place of publishing: Date issued/created: Description:Referat wygłoszony na Second Meeting of the European Ornithologists' Union ; Bibliogr. p. 94 ; P. [91]-95 : ill. ; 27 cm ; Abstract in Polish
Type of object: Subject and Keywords:birds ; Poland ; Germany ; congresses ; species richness ; farmland ; landscape structure ; point counts method ; species-area curve ; Aves
Abstract:The aim of the study was to determine the relation between landscape structure, point counts number and the number of breeding bird species occuring in different types of farmland. Species number was evaluated using point counts on six plots localised in Polish and German farmland (from 30-52 points/plot, 10 min/point, radius - 100 or 150 m). The equation: S = cAz, where S - species number, A - sample size (number of points), c, z - parameters, was used to test the relation between point counts number and species numbers. The coefficients of determination amounted to 0.95-0.99. Among the parameters of equation, c was more strongly correlated with landscape parameters (e.g. wood cover). The analysis revealed, that unified farmland requires bigger representative sample size compared to other, more diversified types of farmland. At least 50 points are needed for proper comparing bird species number between farmlands or periods.
Relation: Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Format: Source:MiIZ PAN, call no. P.257, Vol. 35, No 1 ; MiIZ PAN, call no. P.4568, Vol. 35, No 1 ; click here to follow the link
Language: Rights:Creative Commons Attribution BY 3.0 PL license
Terms of use: Digitizing institution:Museum and Institute of Zoology of the Polish Academy of Sciences
Original in:Library of the Museum and Institute of Zoology of the Polish Academy of Sciences
Projects co-financed by:Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund
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