Individual study: Mammals, amphibians, reptiles and birds used nine purpose-built culverts along a highway in New South Wales, Australia
Taylor B.D. & Goldingay R.L. (2003) Cutting the carnage: wildlife usage of road culverts in north-eastern New South Wales. Wildlife Research, 30, 529-537
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Install culverts or tunnels as road crossings
A replicated study in 2000–2001 of nine wildlife culverts with barrier fencing along a highway through coastal lowlands in New South Wales, Australia (Taylor & Goldingay 2003) found that all culverts were used by amphibians. Amphibian tracks made up 14% of those in culverts. Cane toads Bufo marinus were observed inside culverts nine times. Twelve additional species were recorded within 2–20 m of entrances. Fifty-five frog (brown-striped frog Limnodynastes peronii, dainty green tree frog Litoria gracilenta) and two cane toad carcasses and 14 live frogs were recorded on the road on one night. The concrete culverts (2.4 m wide, 1.2 m high, 18 m long) lay along a 1.4 km section of highway. A chain-mesh barrier fence (1.8 m high) was installed either side of the bypass. Each culvert was walked through with a spotlight on two wet and two dry nights in January-February 2001. Tracks were recorded on sand across culverts every two days over eight days in spring and autumn. Frog calls were also recorded at entrances.