Arboreal animals need trees for some or all of their shelter, food and movement. This diverse group of wildlife
includes mammals, amphibians and reptiles that climb, crawl and glide in trees. Since trees are a critical
resource, arboreal animals are directly affected by habitat loss from road construction. The susceptibility
of arboreal animals to barrier effects and wildlife-vehicle collisions (WVC) will depend on their willingness,
opportunity and ability to cross gaps. Methods to mitigate the impacts of roads and traffic are often unique
and specific to this group of wildlife.
40.1 Always avoid clearing trees where possible.
40.2 Canopy connectivity is important for most arboreal animals.
40.3 Not all arboreal animals need arboreal crossing structures.
40.4 Further research on impacts and mitigation for arboreal species is needed.
Recent studies have quantified the impacts of roads on some arboreal species, primarily mammals, and
successful mitigation techniques are available. However, further research on the use and effectiveness of
mitigation strategies for this group is urgently required, particularly for arboreal amphibians and reptiles.