Many studies have been conducted to determine the effectiveness of fauna crossings (wildlife crossings) at providing habitat connectivity and reducing wildlife-vehicle collisions. The effectiveness of fauna structures is predominantly site-specific. This is due to differences in location, fauna structure, species, habitat, etc. But fauna crossings appear to have been beneficial to several species throughout different locations around Australia. According to the study of the Nevada Department of Transportation, all of the crossing structures were very effective at:
New research from Griffith University researchers, shows that Koalas have quickly learned to use wildlife passageways to cross busy roads in Australia as they move between habitats.
The study, published in the journal Wildlife Research, used multiple technologies to track individual koalas. They used cameras, GPS collars, and newly-developed wireless identification chips, which communicated with devices at the entrance and exit of each crossing.
To test the effectiveness, the research team caught and tagged koalas on either side of the crossings, in a region stretching from Brisbane to the Gold Coast.
Throughout the 30-month study, the researchers verified 130 koala crossings, though only about 21% of the tagged koalas used the structures.
The team’s cameras also caught a number of other animals using the wildlife crossings, including echidnas, goannas, possums and wallabies.