Restoring habitat connectivity over the road: vegetation on a fauna land-bridge in south-east Queensland
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The Compton Road overpass in southern Brisbane is known to be allowing passage by numerous birds, reptiles and amphibians; but what type of vegetation is providing habitat suitable for these movements? An evaluation of the reconstructed vegetation on the overpass shows that 45 species of plants were present after 4 years of growth. Most of these were in the original planting list but over 40% have almost certainly come from salvaged native topsoil used in the bypass construction. The resulting habitat, 4 years later, now appears similar to a typical coastal eucalypt forest secondary succession, although not yet identical to nearby forest. The current presence of a dense mid-layer of small trees and shrubs may be an important factor in allowing even the edge-avoiding species to cross the road. On-going investigation of successional changes and the changing responses of the birds and other taxa will contribute to understanding the functionality of such crossing structures.
Ecological Management and Restoration
Author Posting. Copyright 2011. This is the author's version of the work. It is posted here for personal use, not for redistribution. The definitive version was published in Ecological Management & Restoration, Volume 12, Issue 1, pages 76–79, April 2011, http://dx.doi.org/10.1111/j.1442-8903.2011.00574.x