Fig. 2From: Crop diversity loss as primary cause of grey partridge and common pheasant decline in Lower Saxony, Germany a Grey partridge breeding pair density 2005; b grey partridge breeding pair spearman rho correlation coefficients (2005–2014) per municipality in Lower Saxony. Red indicating negative population trends green positive trends. Grey no data (Cartographic base: GeoBasis-DE/BKG 2002, data source: wildlife survey)Back to article page