An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Latest Earthquakes | Chat Share
Tests the hypothesis of prey-selectivity based on random samples of predator scats.
View User's manual
Run program online
Chesson, J. 1989. The effect of alternative prey on the functional response of Notonecta hoffmani. Ecology 70: 1227-1235. doi: 10.2307/1938180
Link, W.A. and Karanth, K.U. 1994. Correcting for overdispersion in tests of prey selectivity. Ecology 75: 2456-2459. doi: 10.2307/1940899
Manly, B.F.J., Miller, P., and Cook, L.M. 1972. Analysis of a selective predation experiment. American Naturalist 106: 719-736. doi: 10.1086/282808