Typically, the winter season for the hibernator is characterized by periods of hibernation interrupted by periodic euthermic arousals wherein body temperature is restored to typical values.
The more you lose, the more open water is created, the more warming goes on in that open water during the summer, the less ice forms in winter, the more melt there is the following summer.
As Victor Hugo once said, Laughter is the sun that drives winter from the human face, and up to now nobody has been able to do this better than Charlie Chaplin.
Large trees nourish smaller shaded ones until they are tall enough to reach sunlight, and trees that stay green all year round share nutrients with trees that lose their leaves in winter-helping them through the season.