oooooooooooooooooooooooooooooooo Diet, Body Size and the Energy Costs of Locomotion in Saltatory Primates

摘要: Key WordsKinetic energy costs · Metabolic Avahi occidentalis ·Galago moholi Otolemur crassicaudatus Lepilemur edwardsi ·Tarsius bancanusAbstractWe report the energetic of locomotion in five nocturnal, saltatory prosimi-ans. Using data on nightly travel distance, locomotor frequencies, distance and heightchange each mode, we calculated absolute relative locomo-tion. Locomotion contributes at most 2% to total daily metabolic costs, consis-tent with estimates for quadrupedal species. Tarsius, smallest, has lowestabsolute cost locomotion, but third Avahi, highestabsolute followed by largest species, Otolemurcrassicaudatus,which incurs particularly high upwards-directed locomotion.Lepilemur’s are maintained an unexpectedly low level re-markably short distances.IntroductionAn animal gains all its through metabolism food. The demands onthis can be considerable, even when is resting. It sharedbetween normal body maintenance, including protein synthesis, circula-tion fluids tissue repair. Substantial additional reproduction andlactation occur female animals, these factors have been shown consid-erable importance activity budgets [1]. But also expended during locomo-tion which itself directed location acquisition food mates theavoidance predators. Since energetically expensive [2], animalthat needs move throughout active period might expected budget carefullyto allow demands. During increased physical activity, contraction theskeletal muscles requires extra energy, respiratory cardiovascular systems