Table 1.

List of different time domains in the hypoxic ventilatory response documented to date in ectotherms

Group	Time domain	Variable	Direction	Time course	Species	References
Fish	STP	V amp/V f	Increase	5–15 min	Amia calva	McKenzie et al. (1991)
	HVD	V amp	Decrease	1–6 h	Colossoma macropomum	Rantin and Kalinin (1996) Florindo et al. (2006)
	HVD	V f	Decrease	1–12 h	Cyprinius carpio	Stecyk and Farrell (2002)
	VAH	V amp	Increase	7–21 days	Platichthys flesus Ictalurus punctatus	Kerstens et al. (1979) Burleson et al. (2002)
Amphibians	STD	Fictive	Decrease	30 min	Rana catesbeiana	Winmill et al. (2005) Fournier et al. (2007)
	HVD	V amp/V f	Decrease	30–180 min	Bufo paracnemis Rana catesbeiana Lithobates catesbeianus	Gargaglioni and Branco (2000) Winmill et al. (2005) Fournier et al. (2007)
	VAH	V f	Decrease	7–10 days	Bufo marinus	Gamperl et al. (1999) McAneney et al. (2006) Srivaratharajah et al. (2008)

STP short-term potentiation, STD short-term depression, HVD hypoxic ventilatory decline, VAH ventilatory acclimatization to hypoxia, fictive fictive ventilation