numerical response

https://doi.org/10.1351/goldbook.14888
Change in predator or grazer number through increased reproductive output, decreased mortality, or increased immigration in response to changes in prey or food densities.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 921 [Terms] [Paper]