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Ectotherms typically have lower metabolic rates than endotherms at a given body mass. As a consequence, endotherms generally rely on higher food consumption, and commonly on food of higher energy content. Such requirements may limit the carrying capacity of a given environment for endotherms as compared to its carrying capacity for ectotherms.
Many endotherms have a larger amount of mitochondria per cell than ectotherms. This enables them to generate heat by increasing the rate at which they metabolize fats and sugars . Accordingly, to sustain their higher metabolism, endothermic animals typically require several times as much food as ectothermic animals do, and usually require a ...
On the other hand, endotherms (metabolic regulators) can regulate their own body temperature and are independent of the environment, like all mammals and birds. Regardless of the ambient temperature, these organisms maintain a constant internal body temperature (they are homeothermic), which allows them to be more active at any time of the day.
Kleptothermy is observed, particularly amongst juveniles, in endotherms such as bats [36] and birds (such as the mousebird [37] and emperor penguin [38]). This allows the individuals to increase their thermal inertia (as with gigantothermy) and so reduce heat loss. [39] Some ectotherms share burrows of ectotherms. Other animals exploit termite ...
In general, warm-bloodedness refers to three separate categories of thermoregulation.. Endothermy [a] is the ability of some creatures to control their body temperatures through internal means such as muscle shivering or increasing their metabolism.
J.S. Alho and colleagues argued in 2011 that, although Allen's rule was originally formulated for endotherms, it can also be applied to ectotherms, which derive body temperature from the environment. In their view, ectotherms with lower surface area-to-volume ratios would heat up and cool down more slowly, and this resistance to temperature ...
In biology, thermoregulation is the ability of an organism to maintain its body temperature, and the term "endotherm" refers to an organism that can do so from "within" by using the heat released by its internal bodily functions (vs. an "ectotherm", which relies on external, environmental heat sources) to maintain an adequate temperature. [14]
Ectotherms and endotherms have very different assimilation efficiencies. [16] Detritivores. Detritivores consume organic material that is decomposing and are in turn ...