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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 ]
Aestivation, also spelled estivation, is an example of consequential dormancy in response to very hot or dry conditions. It is common in invertebrates such as the garden snail and worm but also occurs in other animals such as lungfish , salamanders , desert tortoises , and crocodiles .
Aestivation or estivation is the positional arrangement of the parts of a flower within a flower bud before it has opened. Aestivation is also sometimes referred to as praefoliation or prefoliation , but these terms may also mean vernation : the arrangement of leaves within a vegetative bud.
The sentence can be given as a grammatical puzzle [7] [8] [9] or an item on a test, [1] [2] for which one must find the proper punctuation to give it meaning. Hans Reichenbach used a similar sentence ("John where Jack had...") in his 1947 book Elements of Symbolic Logic as an exercise for the reader, to illustrate the different levels of language, namely object language and metalanguage.
Northern bat hibernating in Norway Bats hibernating in a silver mine. 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 metaboli
Estivation If the water temperature becomes too high, some species of sea cucumber from temperate seas can aestivate . While they are in this state of dormancy, they stop feeding, their gut atrophies, their metabolism slows down and they lose weight.
Torpor is a state of decreased physiological activity in an animal, usually marked by a reduced body temperature and metabolic rate.Torpor enables animals to survive periods of reduced food availability. [1]
According to Merriam-Webster Collegiate Dictionary, estivation is defined as, 1 : to spend the summer usually at one place 2 : to pass the summer in a state of torpor -- compare HIBERNATE. I believe the contributor of the removed paragraph may have been thinking of torpor. —CKA3KA (Skazka) 07:22, 30 January 2008 (UTC)