昆虫不连续气体交换

Abstract

Abstract: Many insects exchange respiratory gas cyclically and discontinuously. According to the opening or closing spiracle, a typical discontinuous gas exchange cycle (DGC) has three distinct phases: the closed period with little or no external gas exchange, the flutter period during which oxygen enters tracheae and little CO₂ escapes and the open period during which lots of CO₂escape. This paper reviews the characteristics of DGC and the effect of insect activities, temperature and mass on DGC, and discusses the evolutionary and adaptive meanings of DGC related to respiratory water loss, hypoxic or hypercapnic environments.

Key words: Respiration, discontinuous gas exchange cycle, spiracle, carbon dioxide

YAO Qing, SHEN Zuo-Rui. Discontinuous gas exchange in insects[J]., 2005, 48(2): 273-278.

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http://www.insect.org.cn/EN/Y2005/V48/I2/273

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Discontinuous gas exchange in insects

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