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Aestivation (Latin: aestas (summer); also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. [ 1 ]
Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is most commonly used to pass through winter months – called overwintering.
Winter rest (from the German term Winterruhe) is a state of reduced activity of plants and warm-blooded animals living in extratropical regions of the world during the more hostile environmental conditions of winter. In this state, they save energy during cold weather while they have limited access to food sources.
Overwintering is the process by which some organisms pass through or wait out the winter season, or pass through that period of the year when "winter" conditions (cold or sub-zero temperatures, ice, snow, limited food supplies) make normal activity or even survival difficult or near impossible. In some cases "winter" is characterized not ...
Though the spotted ground squirrel is considered to be generally a burrowing mammal which spends a large portion of its time in hibernation, it spends a majority of its above-ground activity foraging and feeding on food resources. With the rest of its time being dedicated to alert calls, maintenance behavior (resting, sun bathing, grooming) and ...
Seasonal affective disorder (SAD) is a mood disorder subset in which people who typically have normal mental health throughout most of the year exhibit depressive symptoms at the same time each year. [1] [2] It is commonly, but not always, associated with the reductions or increases in total daily sunlight hours that occur during the winter or ...
Hibernation lasts until about mid April to May, with males emerging slightly earlier than females. From the time that the meadow jumping mouse goes into hibernation to the time it comes out there is a significant amount of weight loss. When the male emerges from hibernation it starts feeding and is immediately reproductively active.
In the northern parts of its range, the western whiptail usually emerges from hibernation in May, and most adults aestivate during the midsummer months, but in the south it is active from April through late August. The seasonal period of activity is therefore considerably shorter in the north.