Population Trends Of European Common Birds
L > R :Yellowhammer Reed Bunting Bearded Tit Reed Warbler Woodpigeon
A study sponsored by a consortium with intrests in Natural History led by Muséum National d’Histoire Naturelle & European Bird Census Council and conducted by Frederic Jiguet and others attempted to analyse long-term trends of110 common breeding birds across Europe (20 countries), to identify climate niche characteristics, adjusted to other environmental and life history traits, that predict large-scale population changes accounting for phylogenetic relatedness among species.
Beyond the now well-documented decline of farmland specialists, they found that species with the lowest thermal maxima (as the mean spring and summer temperature of the hottest part of the breeding distribution in Europe) showed the sharpest declines between 1980 and 2005. Thermal maximum predicted the recent trends independently of other potential predictors.
This study emphasizes the need to account for both land-use