Climate change may melt the ‘freezers’ of pygmy owls and reduce their overwinter survival

Read the full story from the University of Turku.

Ecologists have discovered that the food hoards pygmy owls collect in nest-boxes (‘freezers’) for winter rot due to high precipitation caused by heavy autumn rains and if the hoarding has been initiated early in the autumn. The results of the study show that climate change may impair predators’ foraging and thus decrease local overwinter survival.

Associated journal article: Giulia Masoero, Toni Laaksonen, Chiara Morosinotto, Erkki Korpimäki. Climate change and perishable food hoards of an avian predator: Is the freezer still working? Global Change Biology, 2020; DOI: 10.1111/gcb.15250

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