detection of hypoxia
The series of events in which a stimulus indicating lowered oxygen tension is received by a cell and converted into a molecular signal. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
GO:0001666
response to hypoxia
is_a
GO:0003032
detection of oxygen
is_a
detection of reduced oxygen levels
exact