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- Q18343987 subject Q9140393.
- Q18343987 abstract "A mesotherm (Greek, 'meso' = intermediate; 'thermē' = heat) is a type of animal with a thermoregulatory strategy intermediate to 'cold-blooded' ectotherms and 'warm-blooded' endotherms. Mesotherms have two basic characteristics: 1. Elevation of body temperature via metabolic production of heat.2. Weak or absent metabolic control of a particular body temperature.The first trait distinguishes mesotherms from ectotherms, the second from endotherms. For instance, endotherms, when cold, will generally resort to shivering or metabolizing brown fat to maintain a constant body temperature, leading to higher metabolic rates. A mesotherm, however, will experience lower body temperatures and lower metabolic rates as ambient temperature drop. In addition, mesotherm body temperatures tend to rise as body size increases (a phenomenon known as gigantothermy), unlike endotherms. This reflects the lower surface area to volume ratio in large animals, which reduces rates of heat loss.While extant mesotherms are relatively rare, good examples include tuna, lamnid sharks (e.g., the Great White Shark), and the leatherback sea turtle.Historically, the same term was used by Alphonse Pyramus de Candolle to describe plants that require a moderate degree of heat for successful growth. In his scheme, a mesotherm plant grew in regions where the warmest month had a mean temperature greater than 22 °C and the coldest month had a mean temperature of at least 6 °C.".
- Q18343987 wikiPageWikiLink Q123807.
- Q18343987 wikiPageWikiLink Q189684.
- Q18343987 wikiPageWikiLink Q9140393.
- Q18343987 comment "A mesotherm (Greek, 'meso' = intermediate; 'thermē' = heat) is a type of animal with a thermoregulatory strategy intermediate to 'cold-blooded' ectotherms and 'warm-blooded' endotherms. Mesotherms have two basic characteristics: 1. Elevation of body temperature via metabolic production of heat.2. Weak or absent metabolic control of a particular body temperature.The first trait distinguishes mesotherms from ectotherms, the second from endotherms.".
- Q18343987 label "Mesotherm".