MANY MINDEDCanopy bridges in Brazil logged 15,000 crossings and zero roadkill
In 2024, eight canopy bridges were installed on a road leading to Alta Floresta in Mato Grosso state, Brazil, connecting forest patches that the road had fragmented. Camera traps monitoring the bridges over 15 months recorded roughly 15,000 safe crossings by arboreal animals, with no roadkill logged during the observation window. The bridges are part of a program run by Projeto Reconecta together with the municipal government.
The effort was founded by biologist Fernanda Abra, an associate researcher at the Smithsonian National Zoo and Conservation Biology Institute. She has said she found two Schneider's marmosets dead just hours before the first bridges went up. That species is endemic to the Brazilian Amazon and threatened with extinction. According to the account, buffy-headed marmoset roadkill cases have not been recorded on the road since 2024.
For the shared environment, this is a small but concrete example of low-cost infrastructure restoring connectivity that roads had severed. Simple canopy crossings let tree-dwelling animals move between habitat patches without descending to the pavement, reducing deaths and reconnecting populations that would otherwise be isolated. Because the cost is modest relative to major road engineering, the approach could be replicated along other fragmented corridors.
What to watch is whether these results hold over longer periods and across different sites and species. The figures come from a reposted excerpt of Mongabay's reporting, and 15 months of camera-trap data, while encouraging, is a limited window for judging long-term recovery.
Source: HumanProgress