Journal article
Use of highway underpasses by bandicoots over a 7-year period that encompassed road widening
Australian Mammalogy, Vol.36(2), pp.178-183
2014
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Source: InCites
Abstract
<p>Roads may create filters or barriers to animal movement and adversely affect population processes. Underpasses are now commonly installed during highway construction to mitigate barrier effects and link habitat patches. We used sand-tracking to investigate use of six underpasses by bandicoots along a section of the Pacific Highway in northern New South Wales before, during and after road duplication (i.e. expansion from two to four lanes). Trapping revealed that the northern brown bandicoot (<em>Isoodon macrourus</em>) and the long-nosed bandicoot (<em>Perameles nasuta</em>) were equally abundant prior to highway expansion. Five years before highway widening, bandicoots frequently used 18-m-long underpasses (>1 traverses per day). Twelve months before road widening, underpass use by bandicoots declined to ~0.5 traverses per day and continued near this level during construction. This declined to 0.03 traverses per day after duplication with underpasses extended to ≥49 m in length. Few crossings were recorded after expansion of the road corridor, which may indicate a shift from regular foraging traverses before duplication to infrequent dispersal movements after duplication.</p>
Details
- Title
- Use of highway underpasses by bandicoots over a 7-year period that encompassed road widening
- Creators
- Brendan D TaylorRoss L Goldingay - Southern Cross University
- Publication Details
- Australian Mammalogy, Vol.36(2), pp.178-183
- Identifiers
- 3548; 991012821383402368
- Academic Unit
- School of Environment, Science and Engineering; Science; Faculty of Science and Engineering
- Resource Type
- Journal article