• [2012-09-11] Greenland Lemmings' Collapse Pushes Predators to Brink
  + http://rspb.royalsocietypublishing.org/content/early/2012/09/05/rspb.2012.1490
  in Tietoukka Monitor > 2012 > 2012-37 with birds greenland mammals population_cycles predation
• [2013-02-20] Ptarmigan, gyrfalcon numbers drop: Yukon study
  + http://eyeonthearctic.rcinet.ca/home/canada/44-environment/3140-ptarmigan-gyrfalcon-numbers-drop-in-canadas-yukon-study + http://www.alaskadispatch.com/article/whats-troubling-subarctic-bird-species-ptarmigan-gyrfalcon
  in Tietoukka Monitor > 2013 > 2013-08 with arctic birds canada population_cycles population_declines
• [2013-04-05] Europe-Wide Dampening of Population Cycles in Keystone Herbivores
  in Tietoukka Monitor > 2013 > 2013-14 with europe herbivores population_cycles

population_cycles from all users