This module introduces the Holling’s disk equation in the context of understanding the relationship between an individual's rate of consumption and food density. It is intended for an introductory biology audience.
Student Introduction: In the type II functional response, the rate of prey consumption by a predator rises as prey density increases, but eventually levels off at a plateau (or asymptote) at which the rate of consumption remains constant regardless of increases in prey density (see also TYPE I and TYPE III FUNCTIONAL RESPONSE). Holling's disk equation, named after experiments he performed in which a blindfolded assistant picked up sandpaper disks from a table, describes the type II functional response.
Cite this work
Researchers should cite this work as follows:
- Gross, L., Beals, M., Harrell, S. (2019). Type II Functional Response: Holling’s Disk Equation. Quantitative Biology at Community Colleges, QUBES Educational Resources. doi:10.25334/Q49B2B