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.
Representative example of the population dynamics of the host–parasitoid system. Blue line, C. chinensis (host); green line, C. maculatus (host); gray line, A. calandrae (parasitoid). Ratio of black-eye beans: BR = 0 (A and B); BR = 0.2 (C and D); BR = 0.5 (E and F); BR = 0.8 (G and H); and BR = 1.0 (I and J). A. calandrae was added at either week 9 (A, C, E, H, and I) or week 5 (B, D, F, G, and J).
