ectotherm

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ectotherm

[′ek·tə‚thərm]
(physiology)
An animal that obtains most of its heat from the environment and therefore has a body temperature very close to that of its environment.
References in periodicals archive ?
Converse Bergmannian clines are much more frequent in ectotherms than in endotherms, especially in insects (Brennan & Fairbairn 1995, Mousseau 1997, Fischer & Fiedler 2002, Blanckenhorn & Demont 2004, Bidau & Marti 2007b).
5) were biologically consistent with vertebrate or invertebrate ectotherms as predator and consumer (body size ratio of 625:1).
Evolution of thermal sensitivity of ectotherm performance.
As a result, endotherms and ectotherms inhabiting the same contaminated areas and feeding on similarly contaminated foods may or may not exhibit differences in the magnitude of their equilibrium body burdens that are comparable to the differences in their metabolic rates.
The behavior of ectotherms challenges the predicted shifts in species distribution patterns; thus, knowledge concerning these unpredicted behaviors shows us that animals such as marine snails, in this case, still have a lot to teach us concerning global warming and climate change models.
A key aim is to integrate life-history theory and respiration physiology to understand and predict the ecological consequences of temperature, through its effect on metabolism, growth, reproduction and survival in aquatic ectotherms.
Ectotherms, time and temperature: reaction norms for age and size at maturity.
Although paleontologists once saw them as sluggish ectotherms, many now envision dinosaurs as endotherms.
The body temperatures of intertidal ectotherms can vary drastically when low tides subject them to the exigencies of the terrestrial environment, making the intertidal zone of wave-washed rocky shores one of the most thermally stressful on Earth.
The ecology of body temperature control of terrestrial ectotherms.
The mass specific standard respiration rate (MSR) is a measure of the intensity of basal aerobic metabolism and is primarily controlled by the habitat temperature in ectotherms.