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.
Conceptual illustration showing the effect of a sudden environmental perturbation on three populations. In the case of a population with long memory, the response to a perturbation is slow, while a population with short memory responds quickly. [Color figure can be viewed at wileyonlinelibrary.com]
