Biodiversity

Species Profile and Threats Database


For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
 
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Vulnerable as Eucalyptus alligatrix subsp. miscella
Listing and Conservation Advices Approved Conservation Advice for Eucalyptus alligatrix subsp. miscella (a stringybark) (Threatened Species Scientific Committee (TSSC), 2014as) [Conservation Advice].
 
Recovery Plan Decision Recovery Plan not required, included on the Not Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans
Federal Register of
    Legislative Instruments
Environment Protection and Biodiversity Conservation Act 1999: correction of list of threatened species (9/03/2001) (Commonwealth of Australia, 2001j) [Legislative Instrument] as Eucalyptus alligatrix subsp. miscella Brooker, Slee & J.D.Briggs ms..
 
Amendment to the list of threatened species under section 178 of the Environment Protection and Biodiversity Conservation Act 1999 (11/04/2007) (Commonwealth of Australia, 2007f) [Legislative Instrument] as Eucalyptus alligatrix subsp. miscella.
 
State Government
    Documents and Websites
NSW:Eucalyptus alligatrix subsp. miscella - profile (NSW Office of Environment and Heritage (NSW OEH), 2014b) [Internet].
Scientific name Eucalyptus alligatrix subsp. miscella [64341]
Family Myrtaceae:Myrtales:Magnoliopsida:Magnoliophyta:Plantae
Species author  
Infraspecies author Brooker, Slee & J.D.Briggs
Reference Brooker, M.I.H., Slee, A.V. & Briggs, J.D. (1995) A Taxonomic Revision of Eucalyptus ser. Argyrophyllae. Australian Systematic Botany 8(4): 512, fig. 5 [tax. nov.]
Other names Eucalyptus alligatrix subsp. miscella Brooker, Slee & J.D.Briggs ms. [67407]
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

New South Wales: This subspecies is listed as Vulnerable under the name Eucalyptus alligatrix subsp. alligatrix under the Threatened Species Conservation Act 1995.

Eucalyptus alligatrix subsp. miscella is now included as a synonym of E. a. subsp. alligatrix (Hill 2014). For the purposes of the Environment Protection and Biodiversity Conservation Act 1999, the entity listed as E. a. subsp. miscella only protects the population occurring near Rylstone in New South Wales.

Brooker and colleagues (1995) treatment described three Eucalyptus alligatrix subspecies:

  • E. a. subsp. alligatrix, which occurs between Torbreck Station, Jamieson and Kevington in central Victoria
  • E. a. subsp. miscella, which occurs in Rylstone north-west of Sydney, and differs from E. a. subsp. alligatrix by its lower stature and woodland form, and by having inflorescences with both three and seven flowers
  • E. a. subsp. limaensis, which occurs in the Lima and Swanpool area of central Victoria, and differs from E. a. subsp. alligatrix by smaller fruit and a crown consisting only of narrower adult leaves.

Eucalyptus alligatrix subsp. miscella is a tree to 15 m high (Brooker et al. 1995). The bark is rough and persistent on the trunk and larger branches. It is thick, fibrous and longitudinally furrowed, and reddish-brown to grey-brown in colour (Brooker & Kleinig 1999). A detailed description is provided by the NSW Office of Environment and Heritage (2014b) and Hill (2014).

Eucalyptus alligatrix subsp. miscella occurs south-west of Rylstone in New South Wales. It is confined to an area of partly cleared grazing land on private property, where an estimated 1000-1500 trees survive over an area of about 10 ha (Brooker et al. 1995). Most of the population consists of moderately dense stands that have regenerated following historic clearing, but there are also larger scattered paddock trees, probably pre-dating European settlement (Brooker et al. 1995).

Eucalyptus alligatrix subsp. miscella grows on a stony rise in dry sclerophyll woodland that is mostly cleared (Brooker et al. 1995; NSW OEH 2014b). Soils are shallow and relatively infertile (grey brown loam with ironstone) (NSW OEH 2014b). Associated trees include Red Stringybark (Eucalyptus macrorhyncha), Blakely's Red Gum (Eucalyptus blakelyi), Manna Gum (E. viminalis), Apple Box (E. bridgesiana), Yellow Box (E. melliodora), Scribbly Gum (E. rossii) and Rough-barked Apple (Angophora floribunda).

Threats to Eucalyptus alligatrix subsp. miscella include (NSW OEH 2014b):

  • Clearing and the modification of habitat caused by landuse change.
  • Grazing by stock, which limits potential for regeneration.
  • Inappropriate fire regimes (specifically too frequent fire), which may reduce the vigour of mature trees and kill young trees.
  • Localised extinction caused by stochastic natural and human-induced events.
  • Inbreeding depression due to the small size of the Rylstone population.

Recommended recovery actions for Eucalyptus alligatrix subsp. miscella include (NSW OEH 2014b):

  • Control of domestic stock grazing within and adjacent to the population.
  • Protection of known habitat from clearing, fragmentation and disturbance.
  • Surveying in suitable habitat to identify additional populations.
  • Investigation of the subspecies reproductive biology, ecology and its preferred fire regime.
  • Determination of the subspecies preferred fire regime and implement an appropriate fire strategy based on these findings.

The following table lists known and perceived threats to this species. Threats are based on the International Union for Conservation of Nature and Natural Resources (IUCN) threat classification version 1.1.

Threat Class Threatening Species References
Agriculture and Aquaculture:Livestock Farming and Grazing:Grazing pressures and associated habitat changes Eucalyptus alligatrix subsp. miscellain Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006jw) [Internet].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Eucalyptus alligatrix subsp. miscellain Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006jw) [Internet].

Brooker, M.I.H. & D.A. Kleinig (1999). Field Guide to Eucalypts. Volume 1, South-eastern Australia. Hawthorn, Victoria: Bloomings Books.

Brooker, M.I.H., Slee, A.V. & Briggs, J.D. (1995). A Taxonomic Revision of Eucalyptus ser. Argyrophyllae. Australian Systematic Botany. 8(4):499-520.

Hill, K.D. (2014). Eucalyptus alligatrix L.A.S.Johnson & K.D.Hill subsp. alligatrix. PlantNET - The Plant Information Network System of Botanic Gardens Trust. [Online]. Sydney, Australia. Available from: http://plantnet.rbgsyd.nsw.gov.au.

NSW Office of Environment and Heritage (NSW OEH) (2014b). Eucalyptus alligatrix subsp. miscella - profile. [Online]. Available from: http://www.threatenedspecies.environment.nsw.gov.au/tsprofile/profile.aspx?id=10281.

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This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Eucalyptus alligatrix subsp. miscella in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Thu, 18 Sep 2014 13:26:30 +1000.