07/2555 - Operational Works - Drainage Stormwater Vegetation [As Published] · 142007.2555

ATTUNGA HEIGHTS PRELIMINARY EMP

Most of the vegetation on site is remnant, as defined in the Vegetation Management Act
1999, although disturbed by weed invasion and edge effects. It is mapped b y the EPA as
comprising a mix of two Regional Ecosystems:

* RE 12.2.1 (Notophyll Vine Forest along the watercourse: 30% of the site)) of which
0.175 ha will be cleared and the remaining 62.5% will be retained; VMA status “‘of
Concern”

= RE 12.2.5 (Cypress-Bloodwood-Banksia Open Forest: 70% of the site) of which
0.294 ha will be cleared and the remaining 76.8% will be retained. VMA status “not
of Concern”

The portion of the site on the western side of the creek is generally heavily vegetated and on
sandy soils. Bribie Island Cyprus (Callitris columellaris) dominates most of this section of
the site especially in the northern part and is to a height of approximately 12 meters forming
a dense canopy and shaded understorey. Several large Hoop Pines (Araucaria cunninghamii)
exist on the upper slopes of the block, three of which have been specifically identified for
retention under the Development Conditions.

The understorey has been extensively invaded by weeds including Asparagus Fern
(Asparagus aethiopicus), Mother-of-Millions (Bryophyllum delagoense), Umbrella Tree
(Schefflera actinophylla), Ochna (Ochna serrulata), and Mother-in-Law Tongue
(Sansevieria trifasciata). All plants listed by the Qld herbarium as environmental weeds or
list by the Noosa Shire Council are to be removed from site and/or treated to the satisfaction
of Council before the Operational Phase of the development.

Weed control activities will need to be carried out in a manner that minimises any effect on
the naturally regenerating plants.

Natural regeneration of the understorey is evident with numerous juvenile Hoop Pines
(Araucaria cunninghamii ) occurring on the upper slopes with other understorey rainforest
plants including Broad Leaved Lilly Pilly (Acmena hemilampra), Beach Acronychia
(Acronychia imperforata) and Hard Quandong (Elaeocarpus obovatus) present. In more
open areas of the site, regeneration of Sheoak (Allocasuarina littoralis) and Wallum
Phebalium (Phebalium woombye) is evident.

Rehabilitation of the undeveloped part of the site, focused on enhancing the natural
regeneration especially in the areas with extensive weed invasion. Weed control activities
will need to be carried out in a manner which minimises any effect on the natural
regenerating plants.

An existing dwelling is located in the south western comer of the site. The area directly
below the dwelling is generally clear of trees and has been extensively invaded by garden
plants/weeds including Mother-in-Law Tongue (Sansevieria trifasciata), Oyster Plant

 

[ Chenoweth EPLA 078103 EMP_12_12_07 5]