About: Discontinuous gas exchange

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Discontinuous gas-exchange cycles (DGC), also called discontinuous ventilation or discontinuous ventilatory cycles, follow one of several patterns of arthropod gas exchange that have been documented primarily in insects; they occur when the insect is at rest. During DGC, oxygen (O2) uptake and carbon dioxide (CO2) release from the whole insect follow a cyclical pattern characterized by periods of little to no release of CO2 to the external environment. Discontinuous gas exchange is traditionally defined in three phases, whose names reflect the behaviour of the spiracles: the closed phase, the flutter phase, and the open phase.

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rdfs:label	Discontinuous gas exchange (en)
rdfs:comment	Discontinuous gas-exchange cycles (DGC), also called discontinuous ventilation or discontinuous ventilatory cycles, follow one of several patterns of arthropod gas exchange that have been documented primarily in insects; they occur when the insect is at rest. During DGC, oxygen (O2) uptake and carbon dioxide (CO2) release from the whole insect follow a cyclical pattern characterized by periods of little to no release of CO2 to the external environment. Discontinuous gas exchange is traditionally defined in three phases, whose names reflect the behaviour of the spiracles: the closed phase, the flutter phase, and the open phase. (en)
dcterms:subject	Respiration Insect physiology
Wikipage page ID	19849232 (xsd:integer)
Wikipage revision ID	1052291401 (xsd:integer)
Link from a Wikipage to another Wikipage	dbr:Carbon_dioxide Pressure Muscle Nervous system Haemolymph Metabolic rate Respiratory system of insects Tracheoles Respiration Respiratory system Dust Insect flight Gas exchange Natural selection Coleoptera Frequency Gases Mite Convection Convergent evolution Honeybee Animal Lepidoptera Population Spiracle (arthropods) Stimulus (physiology) Symbiotic bacteria Buffer solution Adaptation Insect physiology Cell (biology) Drosophila melanogaster Ectothermic Respirometry Air Amplitude Evolution Oxygen PH Partial pressure Cellular respiration Diffusion Muscle contraction Temperature Humidity Hypercapnia Hypothesis Hypoxia (medical) Arthropod Artificial selection Abdomen Biological life cycle Terrestrial animal Messor (ant genus) Insect Insects Species Ventilation (physiology) Water Invertebrate trachea Parasitism Trait (biology) Muscular contraction Simple diffusion
sameAs	Discontinuous gas exchange Discontinuous gas exchange Discontinuous gas exchange
dbp:wikiPageUsesTemplate	dbt:Reflist
has abstract	Discontinuous gas-exchange cycles (DGC), also called discontinuous ventilation or discontinuous ventilatory cycles, follow one of several patterns of arthropod gas exchange that have been documented primarily in insects; they occur when the insect is at rest. During DGC, oxygen (O2) uptake and carbon dioxide (CO2) release from the whole insect follow a cyclical pattern characterized by periods of little to no release of CO2 to the external environment. Discontinuous gas exchange is traditionally defined in three phases, whose names reflect the behaviour of the spiracles: the closed phase, the flutter phase, and the open phase. Until recently, insect respiration was believed to occur entirely by simple diffusion. It was believed that air entered the tracheae through the spiracles, and diffused through the tracheal system to the tracheoles, whereupon O2 was delivered to the cells. However, even at rest, insects show a wide variety of gas exchange patterns, ranging from largely diffusive continuous ventilation, to cyclic respiration, of which discontinuous gas exchange cycles are the most striking. Discontinuous gas exchange cycles have been described in over 50 insect species, most of which are large beetles (order Coleoptera) or butterflies or moths (order Lepidoptera). As the cycles have evolved more than once within the insects, discontinuous gas exchange cycles are likely adaptive, but the mechanisms and significance of their evolution are currently under debate. (en)
prov:wasDerivedFrom	wikipedia-en:Discontinuous_gas_exchange?oldid=1052291401&ns=0
page length (characters) of wiki page	16491 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Discontinuous_gas_exchange
is Link from a Wikipage to another Wikipage of	Respiratory system of insects Respiratory system Insect physiology DCG DGC Insect Insect morphology Red imported fire ant Discontinuous Gas Exchange Cycles Discontinuous Gas Exchange Cycles (DGC) Discontinuous respiration Discontinuous ventilation Discontinuous ventilatory cycle
is Wikipage redirect of	Discontinuous Gas Exchange Cycles Discontinuous Gas Exchange Cycles (DGC) Discontinuous respiration Discontinuous ventilation Discontinuous ventilatory cycle
is foaf:primaryTopic of	wikipedia-en:Discontinuous_gas_exchange

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