The optimal age of sown field margins for breeding farmland birds
Article first published online: 27 JUL 2013
© 2013 British Ornithologists' Union
Volume 155, Issue 4, pages 779–791, October 2013
How to Cite
Zollinger, J.-L., Birrer, S., Zbinden, N., Korner-Nievergelt, F. (2013), The optimal age of sown field margins for breeding farmland birds. Ibis, 155: 779–791. doi: 10.1111/ibi.12072
- Issue published online: 16 SEP 2013
- Article first published online: 27 JUL 2013
- Manuscript Accepted: 2 MAY 2013
- Manuscript Received: 7 MAY 2012
- Swiss Ornithological Institute
Table S1. Size (a), first year (year when the field margin was ploughed), the years in which the field margins were monitored, and distances to the nearest hedgerow and forest (m).
Table S2. Pearson correlation coefficient (with 95% confidence interval) between the annual averages of age and size of field margins and the Swiss population indices.
Table S3. Standardized regression coefficients for the territory density of each species and for species richness of all species, species richness of FBI species and territory density of combined FBI species, when the model is fitted to data excluding wild flower plots left for longer than 6 years. 95% credible intervals are in parentheses. Coefficients that are significantly different from zero are in bold. na: not included in the model; ns: deleted from the model due to non-significance.
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