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.
The hand-held disturbance and cage calls where recorded in a floating house laboratory (2). Wild calls were recorded from Xiboreno Channel (1); Catalão Island (3) and Catalão Lake (4). Xs indicate sites negative for sound production. A. Low-water season. B. High-water season.
