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CNCCS Expert Panel

In late September 2015, Logan City Council called for community submissions to help improve and refine Council’s Ecological Significance Map.

Progress update

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On the 9th of November 2015, seventeen ecological experts from around South East Queensland gathered to provide advice and recommendations to Logan City Council in accordance with six Common Nature Conservation Classification System (CNCCS) Expert Panel Criteria.  The experts had a very full day with lots of discussion around both the community submissions and the experts’ own suggestions.  The chair of the expert panel thanked the community for the breadth and detail contained within their submissions.

Over 100 decisions were made on the day.  Some of these included incorporating the nesting and roosting locations of highly mobile threatened birds and bats and using habitat models for other highly mobile fauna such as koalas, brush tailed rock wallabies and spotted-tailed quolls. Biodiversity hotspots or areas providing localised contribution to biodiversity were identified including Daisy Hill, Plunkett Conservation Park, Flesser and Jerry’s Downfall Reserves, Logan Village Park, Logan West Parklands, Greenbank Military Training area, Ferry Road Carbrook, Loganholme Wetlands, Berrinba Wetlands, Eagleby Wetlands, Carron Park, Mount Elliot Road, Bahrs Scrub and Veresdale Scrub.  This summary document reflects some of the discussions of the expert panel.

There is now a substantial amount of work for Council to undertake, including following up on species locations, sourcing external mapping data, re-running habitat models,  and reviewing ecological reports.  Once all of this work has been finalised, the recommendations will be presented to Council and also made available to the community.  These decisions will then be incorporated into the revised Ecological Significance map as an amendment to the Planning Scheme.

CNCCS method

In 2001 Chenoweth Environmental Planning and Landscape Architecture developed the Common Nature Conservation Classification System (PDF 315 KB) (CNCCS) for the Western Subregional Organisation of Councils (WESROC). The methodology provides a consistent approach for assessing biodiversity values at the landscape scale. A slightly revised CNCCS methodology known as the Biodiversity Assessment and Mapping Methodology (PDF 694 KB) (BAMM) is used by the Department of Environment and Heritage Protection (EHP) to generate Biodiversity Planning Assessments (BPAs) for bioregions in Queensland.

Council's Environmental Significance Map (ES Map) criteria are based on the State's BAMM. This ES Map has been incorporated into Logan's Planning Scheme 2015 as FIGURE 3.1.10.1 Ecological Significance, and is used to direct development into areas of least environmental value as well as calculate Environmental Offsets for unavoidable vegetation clearing.

Logan City Council have recognised that using the State's methodology and data are robust at a regional scale, however local on-ground information also needs to be incorporated. Furthermore, feedback from our community members has suggested that further on ground work/investigation is required in order to improve the accuracy of Council's Ecological Significance Map.

Therefore Logan City Council engaged Cardno-Chenoweth to facilitate a CNCCS Expert Panel workshop to incorporate local scale information to improve the accuracy and scale of the ES map.

Selection of the CNCCS expert panel

An industry recognised expert panel were selected, according to their individual reputation within their area of expertise, which is defined through their:

  • On-ground ecological contribution/work
  • Academic experience
  • Publications; or
  • Qualifications

One representative was required from each of the following disciplines: flora, fauna, geology and ecology.

CNCCS Criteria

Criterion H: Other Habitat for 'At Risk' Species

Examples: known grey-headed flying fox roosts, nesting sites for glossy black cockatoos, verified locations of Macadamia integrifolia, Gossia gonocladaGCC

Logan City Council have incorporated all verified locations of the EVR species listed in Table 1 (PDF 235 KB) into Criteria A in accordance with the Biodiversity Assessment and Mapping Methodology (BAMM). Species have been collated from a variety of sources including:

  • Wildnet
  • Herbrecs
  • Qld Museum
  • Australian Bird and bat banding scheme
  • Birds Australia
  • RSPCA

The species listed in Table 2 (PDF 216 KB) have not been included in Criteria A as they are considered highly mobile. We welcome any known locations of these species so that the expert panel can consider these are part of Criteria H. We also welcome any known spurious records of EVR species which may be resulting in false information within the Ecological Significant Map.

Photo of Glossy Black Cockatoo Feeding by Laila Cordall

Criterion I: Habitat for Other Species (Locally Significant Species)

Examples: verified locations of known platypus denning sites and critical feeding sites, verified locations of locally significant populations of Bailey's Stringybark, Notelaea johnsonii or Grevillea hilliana.

As part of the CNCCS Expert Panel, Logan City Council will develop a Locally Significant Species list which will be vetted by the Expert Panel according to the following criteria. Flora and Fauna species, other than EVR species, which are regarded by a recognised authority or expert as significant within the local government area for the following reasons:

  1. They are endemic to South East Queensland
  2. They are poorly represented in South East Queensland or the local government area
  3. They are considered to be in decline
  4. They have a restricted distribution or disjunct distribution
  5. They are at the edge of their distributional range
  6. They are a poorly known or insufficiently known species
  7. They are unusual forms of a species not represented elsewhere; or
  8. They play an important ecological role

Photo of Frilled neck Lizard by Tyrone Lavery

Criterion J: Localised Contribution to Biodiversity

Examples: sites that support unusually high abundance of hollow-bearing trees which are home to a significant glider population.

Photo of Glider Family

Criterion K: Corridor Links, Context & Connection

Logan City Council have undergone a rigorous, scientific process to develop its Biodiversity Corridor Overlay as part of the Logan Planning Scheme 2015 (OM-02.02 Biodiversity Corridors).

Please note that corridor widths will not be altered and due to planning considerations, and suggestions to change the Corridor network will ultimately be Councils decision.

Criterion L: Geomorphological Variation

Examples: isolated large sandstone outcropping in the Plunkett area that supports diverse and unique flora assembles, exposed volcanic trachyte peaks of the Flinders Peak Group which support niches for a range of unique flora and fauna.

Photo of Rocky outcrop in Spring Mountain Forest Reserve

Criterion M: Other Ecosystem Values

Examples: A spring or soak that provides an oasis for flora and fauna

Swamp Tea-tree (Melaleuca irbyana)

Melaleuca irbyana is an endangered tree found within Logan. Less than 10% of the original Melaleuca irbyana forests remain in Queensland and as communities they are listed as critically endangered by the Federal Government. Therefore, Logan City Council are committed to ensuring the long term viability of Melaleuca irbyana through Planning Scheme Provisions and education as well as increasing its population through research and revegetation. Find out more about what Logan City Council is doing.

In 2010 the Queensland Herbarium were engaged through SEQ Catchments to map Melaleuca irbyana communities at a scale of 1:25,000 (PDF 1842 KB) throughout parts of Logan and Ipswich, Somerset, Lockyer and Scenic Rim Local Government Areas.

Logan City Council created the Locally Significant Melaleuca irbyana within the Planning Scheme Overlay: OM-02.03 Locally Significant Vegetation by including all remnant and regrowth Melaleuca irbyana communities from the Herbarium's mapping and providing a 50m edge effect buffer and 150m hydrology buffer area around each patch of Melaleuca irbyana.

Since 2010, Logan City Council have been made aware of additional patches of Melaleuca irbyana which will need to be added to the Planning Scheme Melaleuca irbyana Area Overlay.

Please review the current Locally Significant Melaleuca irbyana mapping within the Planning Scheme Overlay: OM-02.03 Locally Significant Vegetation Types in conjunction with this map (PDF 2251 KB) identifying known areas requiring further investigation, and if you know of additional locations of remnant or regrowth Melaleuca irbyana or areas where the current mapping is incorrect, please go to 'Have Your Say.

Rainforest (Vine Forest)

Rainforest communities in Logan have historically been heavily cleared for agriculture, pastures and valuable timber trees such as hoop pine, brigalow, crows ash, blackbean and red cedar. Today, only small, highly diverse, isolated patches remain, which often contain rare and threatened flora and fauna species. Hence it is important to conserve these areas. These vegetation communities are also referred to as vine forest, dry rainforest, dry vine forests, vine scrub, softwood scrub, vine thickets or Araucarian notophyll or microphyll vine forests.

Community feedback suggested that the current Locally Significant Vine Forest mapping (OM-02.03 Locally Significant Vegetation Types) adopted as part of the 2015 Logan Planning Scheme may be inaccurate in places. Therefore Logan City Council engaged Integrated Land Management Pty Ltd (i8LM) to refine the vine forest mapping using aerial photography interpretation and on-ground verification. I8LM completed the revised mapping in September 2015 in accordance with the mapping methodology outlined in the report (PDF 4821 KB). i8LM were unable to ground truth every property within Logan, and Council are therefore requesting your feedback on the revised maps.
Please review the revised Rainforest mapping (PDF 2685 KB) and if you have any significant, verified additions or deletions to the map in accordance with the mapping methodology outlined in the report, please go to Have Your Say.

A kmz file of the DRAFT Rainforest Mapping which can be opened in Google Maps/Google Earth can be downloaded from Dropbox here (KMZ 1600 KB).

An ESRI ArcGIS Shape file of the DRAFT Rainforest Mapping can be downloaded from Dropbox here (zip 1271KB).

Angle-Stemmed Myrtle (Gossia gonoclada)

Gossia gonoclada is listed as Endangered by both the State and Federal Governments. The State Governments Recovery Plan for the angle-stemmed myrtle 2001-2005 (PDF 153 KB), lists 73 individual known parent trees within Logan and Brisbane Local Government areas, with 64 of these occurring within Logan. Hence Logan City Council is committed to protecting this endangered species through planning scheme provisions and education.
As Gossia gonoclada's are often difficult to find and are said to look like the common Lilly Pilly, Logan City Council included Locally Significant Gossia gonoclada habitat mapping in the 2015 Logan City Council Planning Scheme (OM-02.03 Locally Significant Vegetation Types). However, community feedback suggested that the habitat modelling included cleared land.  There has also been a recent discovery of two new Gossia gonoclada's outside the previously known range.  Therefore Logan City Council will undergo a review of the Gossia gonoclada Overlay Map - 02.03 Locally Significant Vegetation Types.

The current mapping methodology is outlined below:

  • Land containing Gossia gonoclada habitat was modelled using the following criteria:
    • Elevation less than or equal to 50m ADH;
    • Pre-clear Regional Ecosystems: estuary, 12.1.1, 12.1.3, 12.3.1, 12.3.11, 12.3.2, 12.3.7 at any percentage within the pre-clear polygon;
    • Geology 2008 - Qha/1-9543 (Lowest river terrace, gravel, sand, silt, clay), Qha/2-9543 (Second river terrace; sand, silt, clay gravel), Qhe-9543 (Estuarine channels and banks; sandy mud, muddy sand, minor gravel), Qha-SEQ (Clay, silt, sand, active stream channels and low terraces);
    • Within flooding and inundation level (PSX_flood_15092014).

The modelling required all four criteria to be true for an area to be identified as possible Gossia gonoclada habitat. The model results were reviewed by an expert panel, ground-truthed and then cropped where the pre-clear changes and frost becomes inhibiting to Gossia gonoclada's survival.

If you have any information regarding the location of possible of Gossia gonoclada's outside the areas shown on this map (PDF 2676 KB) or suggestions regarding the critical habitat features that we can use to model the habitat please go to Have Your Say.

If you have any questions please contact Environment and Sustainability Branch on 3412 3412.