Mainstreaming ecological connectivity and wildlife needs in green road transport infrastructure planning in South Africa.

Launching green transport infrastructure is important for sustainable development frameworks and fosters sustainable land-use practices. Policy provisions promoting integrated sustainability in road infrastructure planning are critical and should incorporate biodiversity needs. We synthesised key existing South African policies for road infrastructure to assess their implementation and effectiveness in mainstreaming ecological connectivity in their framework of green transport planning.

Optimising the cost of roadkill surveys based on an analysis of carcass persistence.

Reliable estimates of wildlife mortality due to wildlife-vehicle collisions are key to understanding its impact on wildlife populations and developing strategies to prevent or reduce collisions. Standardised approaches for monitoring roadkill are needed to derive robust and unbiased estimates of mortality that are comparable across different study systems and ecological contexts. When designing surveys, there is a trade-off between survey frequency (and hence logistical effort and financial cost) and carcass detection.