Brogo Wet Vine Forest in the South East Corner Bioregion - Determination to make a minor amendment to Part 3 of Schedule 1 of the Threatened Species Conservation Act

NSW Scientific Committee

The Scientific Committee, established by the Threatened Species Conservation Act, has made a Determination to make a minor amendment to Part 3 of Schedule 1 (Endangered ecological communities) of the Act by inserting the Brogo Wet Vine Forest in the South East Corner Bioregion (as described in the determination of the Scientific Committee under Division 5 Part 2) and as a consequence to omit reference to the Brogo Wet Vine Forest in the South East Corner Bioregion (as described in the final determination to list the ecological community) which was published on pages 11945 to 11946 and 11956 to 11959 in the NSW Government Gazette No. 152 dated 24 November 2000. Minor amendments to the Schedules are provided for by Division 5 of Part 2 of the Act.

 

The Scientific Committee is of the opinion that the amendment is necessary or desirable to correct minor errors or omissions in the Determination in relation to the Thackway and Cresswell (1995) reference.

 

The Scientific Committee has found that:

 

1. Brogo Wet Vine Forest is the name of a forest type described by Keith D. & Bedward M. 1999 (Native Vegetation of the South East Forests Region, Eden, New South Wales. Cunninghamia 6(1), 1-100). Further details of the community may be found in this paper.

 

2. The upper storey of the forest is dominated by Eucalyptus tereticornis with occasional Eucalyptus bosistoana and Eucalyptus baueriana, with rainforest elements such as Alectryon subcinereus and Ficus rubiginosa. The open shrubby understorey includes Acacia implexa, Cassinia trinerva, Deeringia amaranthoides, Hymenanthera dentata and Breynia oblongifolia. There is a species-rich ground cover of forbs and graminoids. A variety of vines and twiners occur between the shrub and ground layer including Marsdenia rostrata, Clematis glycinoides, Geitonoplesium cymosum, Glycine clandestina and Stephania japonica.

 

3. The plant species assemblage for the community includes:

 

Acacia implexa

Acacia subporosa

Acmena smithii

Alectryon subcinereus

Angophora floribunda

Asplenium flabellifolium

Breynia oblongifolia

Carex appressa

Cassinia trinerva

Cissus antarctica

Clematis glycinoides

Davallia pyxidata

Deeringia amaranthoides

Desmodium varians

Dichondra repens

Echinopogon ovatus

Eucalyptus baueriana

Eucalyptus bosistoana

Eucalyptus globoidea

Eucalyptus tereticornis

Ficus rubiginosa

Geitonoplesium cymosum

Geranium solanderi

Glycine clandestina

Hydrocotyle laxiflora

Hymenanthera dentata

Lomandra longifolia

Marsdenia rostrata

Microlaena stipoides var. stipoides

Oplismenus imbecillus

Pellaea falcata var. falcata

Poa labillardieri var. labillardieri

Poa meionectes

Pteridium esculentum

Rubus parvifolius

Sigesbeckia orientalis

Stellaria flaccida

Stephania japonica var. discolor

Urtica incisa

 

4. The total species list of the community may be larger than that given above with many species present in only one or two sites or in very small quantity. In any particular site not all of the assemblage listed may be present. At any one time, seeds of some species may only be present in the soil seed bank with no above-ground individuals present. The species composition of the site will be influenced by the size of the site and by its recent disturbance history. The number of species and the above-ground composition of species will change with time since fire, and may also change in response to changes in fire frequency.

 

5. Brogo Wet Vine Forest is distinguished from other communities in the south east forests of New South Wales by the dominance of Eucalyptus tereticornis and the abundance of mesophyll shrubs and vines.

 

6. Brogo Wet Vine Forest is found in the Brogo – Bega Area and the Candelo – Myrtle Area in the Bega Valley Local Government Area within the South East Corner Bioregion. Bioregions are defined in Thackway and Cresswell (1995).

 

7. The majority of the community is found on private land.

 

8. Since 1788 about half of the estimated original extent of Brogo Wet Vine Forest has been cleared for agriculture.

 

9. Continuing threats to Brogo Wet Vine Forest include further clearing, grazing and weed invasion. Inappropriate fire regimes may pose a potential threat, particularly to the rainforest element in the flora.

 

10. Given the limited geographical distribution and area extent of the community and 7,8 and 9 above, the Scientific Committee is of the opinion that the Brogo Wet Vine Forest in the South East Corner Bioregion is likely to become extinct in nature in New South Wales unless the circumstances and factors threatening its survival or evolutionary development cease to operate.

 

 

Dr Richard Major

Chairperson

Scientific Committee

 

Proposed Gazettal date: 14/10/11

Exhibition period: 14/10/11 - 9/12/11

 

Note this ecological community was originally listed in 2000 as indicated in the determination

 

Reference:

 

Keith, D. and Bedward, M. (1999) Native Vegetation of the South East Forests Region, Eden, NSW. Cunninghamia 6(1) 1-218.

 

Thackway R, Cresswell ID (1995) An interim biogeographic regionalisation for Australia: a framework for setting priorities in the National Reserves System Cooperative Program. (Version 4.0. Australian Nature Conservation Agency: Canberra.)

Page last updated: 14 October 2011