Water vapor intake and body water (3HOH) clearance in the housemite Glycyphagus domesticus.

摘要: The dynamics of body water in Glycyphagus domesticus (Deg.) are interest because this species is one the few arthropods having no tracheal system even adult stage, although it can absorb from vapour when kept at a relative humidity rate 75% or slightly less. In starved adults, which were investigated laboratory Berlin by means labelled with radioactive tritium, body-water that single compartment was cleared zero-order and first-order processes while supplied constant day to day. clearance not affected air turbulence nor regulated according remaining reserve. Clearance rates increased increasing temperature. At 15 deg C, 2%/h 70% RH lower 5.4% saturated atmosphere, least 0.06 andmu; g/h; diffused into up 0.23 g/h proportion both humidity, physiologically absorbed mean 0.14 80% atmosphere maintaining steady-state mass. only feature G. differs markedly reported mites have system.