case_images: PMC4374085_01
case_images: PMC4374085_02
case_images: Number of reindeer (A) and calving percentage (calves per 100 females) (B) in Paistunturi and Kaldoaivi during the period 1960-2012 (RHA
  
  ).
case_images: 40064_2015_921_Fig2_HTML.jpg
case_images: PMC4374085_02_40064_2015_921_Fig2_HTML.jpg
case_images: Fig2
case_images: In Kaldoaivi and Paistunturi, reindeer numbers rose rapidly from their minimum in 1974, reaching their maximum in the period 1987-1988 (RHA) (Figure 2).
case_images: Number of days with minimum temperature below -36 C at Kevo, Finland (FMI
  
  ).
case_images: 40064_2015_921_Fig3_HTML.jpg
case_images: PMC4374085_02_40064_2015_921_Fig3_HTML.jpg
case_images: Fig3
case_images: For example, at Kevo, in northernmost Finland, the number of days with a minimum temperature below -36 C (critical for egg survival) decreased during the period 1962-2013 (FMI) (Figure 3).