Thermoregulation that maintains a stable internal body temperature regardless of external influence
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Thermoregulation in animals
Ectotherm
Endotherm
Mesotherm
Poikilotherm
Homeothermy
Heterothermy
Stenotherm
Eurytherm
Thermolabile
Thermostability
Gigantothermy
Kleptothermy
Bradymetabolism
Tachymetabolism
Thermogenesis
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The group that includes mammals and birds, both "warm-blooded" homeothermic animals (in red) is polyphyletic.
Homeothermy, homothermy or homoiothermy[1] is thermoregulation that maintains a stable internal body temperature regardless of external influence. This internal body temperature is often, though not necessarily, higher than the immediate environment[2] (from Greek ὅμοιος homoios "similar" and θέρμη thermē "heat"). Homeothermy is one of the 3 types of thermoregulation in warm-blooded animal species. Homeothermy's opposite is poikilothermy. A poikilotherm is an organism that does not maintain a fixed internal temperature but rather fluctuates based on its environment and physical behaviour.[3]
Homeotherms are not necessarily endothermic. Some homeotherms may maintain constant body temperatures through behavioral mechanisms alone, i.e., behavioral thermoregulation. Many reptiles use this strategy. For example, desert lizards are remarkable in that they maintain near-constant activity temperatures that are often within a degree or two of their lethal critical temperatures.
^McNab, Brian K. (1978-01-01). "The Evolution of Endothermy in the Phylogeny of Mammals". The American Naturalist. 112 (983): 1–21. doi:10.1086/283249. ISSN 0003-0147. S2CID 84070652.
^Ivanov, K.P. (2005). "The development of the concepts of homeothermy and thermoregulation" (PDF). Journal of Thermal Biology. 31 (1–2): 24–29. doi:10.1016/j.jtherbio.2005.12.005. Archived from the original (PDF) on 2017-02-25. Retrieved 2017-02-25.
Homeothermy, homothermy or homoiothermy is thermoregulation that maintains a stable internal body temperature regardless of external influence. This internal...
herring. It is known for its ability to maintain stomach temperature (homeothermy), which is unusual among fish. This shark has not been demonstrated to...
Gigantothermy (sometimes called ectothermic homeothermy or inertial homeothermy) is a phenomenon with significance in biology and paleontology, whereby...
difficulty of consistent application of terms such as poikilothermy and homeothermy. In addition to behavioral adaptations, physiological adaptations help...
stimulus. This cyclical process aids in homeostasis.[citation needed] Homeothermy and poikilothermy refer to how stable an organism's deep-body temperature...
other words, they exhibit characteristics of both poikilothermy and homeothermy. Heterothermic animals are those that can switch between poikilothermic...
May 2009). "Homeothermy and primate bipedalism: Is water shortage or solar radiation the main threat to baboon (Papio hamadryas) homeothermy?". Journal...
; Graves, J.A.M. (1988). "Monotreme Cell-Cycles and the Evolution of Homeothermy". Australian Journal of Zoology. 36 (5): 573–584. doi:10.1071/ZO9880573...
Watson JM, Graves JA (1988). "Monotreme Cell-Cycles and the Evolution of Homeothermy". Australian Journal of Zoology. 36 (5): 573–584. doi:10.1071/ZO9880573...
tissue. The evolution of torpor likely accompanied the development of homeothermy. Animals capable of maintaining a body temperature above ambient temperature...
Mitchell, Duncan; Fuller, Andrea (2018). "Savanna elephants maintain homeothermy under African heat". Journal of Comparative Physiology B. 188 (5): 889–897...
indicate that T. rex maintained a constant internal body temperature (homeothermy) and that it enjoyed a metabolism somewhere between ectothermic reptiles...
than larger bats, and so need to consume more food in order to maintain homeothermy. Bats may avoid flying during the day to prevent overheating in the sun...
prey lizards. Neonatal sidewinders engage in a remarkable behavioral homeothermy that has not been observed in any other type of snake. Following birth...
nurturing and egg guarding abilities for their young. Evolution of homeothermy and flight most likely occurred in bi-parental birds with precocial chicks...
; Graves, J.A.M. (1988). "Monotreme Cell-Cycles and the Evolution of Homeothermy". Australian Journal of Zoology. 36 (5): 573–584. doi:10.1071/ZO9880573...
to have been related to an increasing metabolism and the origins of homeothermy (maintenance of a high body temperature). The evolution of a secondary...
distribution are very close in most of the classifications. They can maintain homeothermy in different ambient temperatures where most of the species regulate...
hibernate. In contrast, placental mammals that hibernate first develop homeothermy, only developing the ability to hibernate at a later point. This difference...
houses and in regions that are chronically damp. Mammalian endothermy and homeothermy are potent nonspecific defenses against most fungi. A comparative genomic...
Ojika, Makoto; Schweitzer, Mary H. (2018). "Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur". Nature. 564 (7736): 359–365....
to maintain their body temperature regardless of air temperature via homeothermy. The African bush elephant is herbivorous. Its diet consists mainly of...
tb07551.x. ISSN 0019-1019. Dunn, Erica H. (1979). "Age of effective homeothermy in nestling tree swallows according to brood size". The Wilson Bulletin...
Per E.; Marone, Federica (December 2018). "Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur". Nature. 564 (7736): 359–365....
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