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.
At regional scales, macrorefugia can facilitate ecosystem persistence over centuries and even millennia. At landscape and local scales, microrefugia can maintain selected species and communities for similar lengths of time. At shorter time scales (days to years), hyper-local refuges can provide temporary shelter for individual organisms.
