The paper entitled ´Trends in abundance and biomass of widespread European farmland birds: how much have we lost?´ is based on results of the Pan-European Common Bird Monitoring Scheme (PECBMS), which were presented at the conference ´Lowland Farmland Birds III: delivering solutions in an uncertain world´ organised by BOU in 2009.
Not surprisingly, the paper confirms a significant decline of farmland birds in Europe in the last three decades. More than half of the species classified as characteristic for farmland in Europe declined while only few increased. The multispecies index of common farmland birds (farmland bird indicator) almost halved in the period 1980-2006.
Interestingly, the trends of farmland birds in new EU Member States are less negative than those in old EU Member States and long-distance migrants among the farmland birds have less negative trends than those that are short-distance migrants or residents in Europe. For the first time we show that an overall index of biomass of farmland birds in Europe has more than halved during the last 27 years.
The paper can be downloaded at http://www.bou.org.uk/bouproc-net/lfb3/vorisek-etal.pdf.
Voříšek, P., Jiguet, F., van Strien, A., Škorpilová, J., Klvaňová, A. & Gregory, R.D. 2010. Trends in abundance and biomass of widespread European farmland birds: how much have we lost? BOU Proceedings – Lowland Farmland Birds III.