Palizadas, logjams forming when large pieces of wood fall into river channels, accumulate downstream, and eventually block the flow, are relatively common in small, narrow Amazonian rivers with forested banks and slow, meandering currents. When a logjam completely obstructs the river, the resulting flooding can inundate vast areas around it, sometimes causing forest dieback in affected zones and serious social impacts for communities living along the riverbanks.
The Maniqui River has experienced palizadas for decades. However, in recent years, their impact on Tsimane’ communities living along the lower course of the river have intensified, as palizadas continue to build up progressively farther upstream each year. Jorge is currently investigating the issue, visiting some of the most affected communities to better understand the situation and plan the next steps for studying the phenomenon in the coming months.
