Bell Miner Associated Dieback (BMAD) mapping for the border region of the Gondwana Rainforests of Australia World Heritage Area most likely undertaken as a Caring for Country project. Prepared for Department of National Parks, Recreation Sport and Racing August 2013 by Tree Crop Technologies Pty Ltd (TCT).
Bell Miner Associated Dieback (BMAD) has been identified as a key threat to Gondwana Rainforests WHA values. BMAD occurs where there is an over-abundance of sap sucking psyllid insects and the associated establishment of dense colonies of Bell Miners, leading to a decline in forest condition. BMAD affects a broad range of sclerophyllous communities, many of them dominated by eucalypt or related species. In many forests affected by BMAD, the ground stratum is lost or dominated by weeds, the original understorey structure is replaced by a dense mid-stratum favourable for high density colonies of Bell Miner, and the upper stratum is subject to a decline in vigour.
No severity classes only BMAD infected patches.
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