Defining a threatened species

Southern Toadlet.

Southern Toadlet - Endangered.

The term 'threatened species' generally refers to those species or taxa which have been assessed against specific criteria to determine their status in terms of extinction risk. Assessments can be quite detailed and consider factors such as population or sub population size, the level and composition of population reduction, the extent and decline across a species geographic range, the fragmentation of populations and decline in the extent and suitability of habitat. 

Subject to findings of the assessment process a species may be assigned a particular level of threat; Extinct (EX), Critically Endangered (CR), Endangered (EN), Vulnerable (VU), Conservation dependent (CD), Threatened (Th).

The term 'threatened species' is applied to those species which are considered either; Vulnerable, Endangered, Critically Endangered, or Extinct.

 

Types of threatened species listings

During 2015, Australian states and territories signed an Intergovernmental Memorandum of Understanding - an Agreement on a common assessment method for listing of threatened species and threatened ecological communities. A common assessment method enables each jurisdiction to have a Single Operational List of threatened species and communities which is assessed using the same criteria across Australia.

 
Advisory Lists replaced by FFG Threatened List

In June 2021, the following advisory lists were replaced by a single operational list called the FFG Threatened List (Flora and Fauna Guarantee Threatened List) in which all species have been assessed using a common assessment process consistent across Australia:

  • Advisory List of Threatened Vertebrate Fauna in Victoria 2014
  • Advisory List of Rare or Threatened Plants in Victoria 2005
  • Advisory List of Threatened Invertebrate Fauna in Victoria 2009

Advisory List were non-legislative lists, developed and managed by the Department of Environment, Land, Water and Planning, and were  intended to increase community awareness of threatened species and provide a resource for individuals, groups and organisations involved with biodiversity conservation.  

The FFG Threatened List is administered by the Department of Energy, Environment and Climate Action (DEECA).

 

IUCN Red List of Threatened Species

 The IUCN Red List  provides information on plants and animals that are facing a higher risk of global extinction. The lists provides taxonomic, conservation status and distribution information on plants and animals that have been globally evaluated  using the IUCN Red List of Threatened Species Criteria. 2001 IUCN Red List Categories and Criteria version 3.1. Note these documents are periodically revised therefore it is recommended to check the IUCN web site for any revisions.

 

Legislated Lists of Threatened Species

There are two primary lists of threatened species which are enshrined in legislation that relate to Victoria;

In both cases for a species to be included in the respective legislation it must have been nominated, assessed by the relevant Scientific Committee and approved by the relevant Minister.

Threatened species Action Statements are required under the Flora and Fauna Guarantee Act 1988. Under the Act the Department of Energy, Environment and Climate Action must prepare an Action Statement for each listed species. Further information on the process of developing Action Statements and to search for completed statements visit the DEECA Action Statement page.

The Australian Government Threatened Species Action Plan 2022-2032 maps a pathway to protect, manage and restore Australia’s threatened species and important natural places.

Overview of threatened species in Victoria

The following information is based on the Victorian FFG Threatened List (March 2025).

Victoria has 2,003 species on the FFG Threatened List, comprising:

  • 292 species of vertebrate fauna (52 mammals, 105 birds, 41 reptiles, 15 amphibians, and 38 fishes).
  • 45 species of crustations
  • 1558 vascular plants
  • 60 non-vascular species
  • 8 species of fungi and lichen
  • 126 species of invertebrates (insects, molluscs, worms,  crustations and marine invertebrates)

These include threatened species as well as species which are considered; Extinct, Critically Endangered, Endangered, Vulnerable.

Number of threatened species by treat level 2025
Numbers of threatened species by Conservation Status in Victoria. Source: derived from FFG Threatened List (March 2025).

 

 

Table of Victorian threatened fauna

Derived from FFG Threatened List - March 2025. Note: numbers in brackets derived from Victorian Advisory List (2014)

 
Mammals
Birds
Reptiles
Amphibians
Fish
Extinct  13 (1) 2 (0) 1 (0) 0 (0) 2 (0)
Critically endangered 6 (5) 28 (12) 15 (14) 7 (8) 15 (11)
Endangered 16 (8) 40 (29) 24 (11) 7 (4) 14 (6)
Vulnerable 16 (10) 35 (48) 1 (10) 1 (3) 4 (3)
Total
51 (24)
105 (89)
41 (35)
15 (15)
35 (20)

Table of Victorian flora 

Derived from FFG Threatened List - JMarch 2025. Note: numbers in brackets derived from Victorian Flora Advisory List (2005)

 
Vascular plants
Non- Vascular plants
Fungi & Lichens
Extinct 30  1 (2)  
Critically Endangered 424 27 2
Endangered 893 (270) 29 (10) 6 (3)
Vulnerable 210 (475) 3 (18) 2
Rare* (804) 30 4
Poorly known* (228) 77 0

Total

1557 (1777)

60 (135)

8 (9)

 

* These classifications are no longer used as part of the FFG Threatened List.


Table of Victorian flora and fauna listed under the FFG Threatened List - March 2025  (and as at February 2014)
 
  No. of FFG Act
Species listed at June 2023 and (Feb. 2014)
Mammals
52 (40)

Birds

105 (76)

Reptiles

41 (28)

Amphibians

15 (11)

Fishes

38 (25)

Crustaceans

45 (19)

Echinoderms

8 (7)

Insects

58 (35)

Cnidarians

2 (1)

Molluscs

11 (10)

Platyhelminths 1
Annelids 1

Vascular Plants

1558 (337)

Non Vascular Plants

60 (19)

Fungi & Lichens

8 (3)

Total

2003  (611)

Bush Stone-curlew
Bush Stone-curlew  Critically Endangered
Downey Star-bush

Downey Star-bush  (Asterolasia phebalioides) - Vulnerable


In addition to the above species listings there are 43 Victorian flora & fauna communities listed under the Victorian FFG Threatened List - March 2025.

Extinctions in Victoria

Extinct in Victoria

Based on FFG Threatened List 2025

Regionally Extinct

(based on old advisory listing 2024)

Bolam's Mouse

Night Parrot

Brush-tailed Bettong (eastern sub, sp.)

Eastern Quoll

Bridled Nailtail Wallaby

Greater Stick-nest Rat

Desert Mouse

Red-tailed Phascogale

Eastern Hare Wallaby

Rufous-bellied Pademelon

Lesser Stick-nest Rat

Western Quoll

Long-eared Mouse

Agassiz's Chanda Perch

Pig-footed Bandicoot

 

Rufous Bettong  

Short-nosed bandicoot (inland form)

 

Southern Bettong (mainland subspecies)

 

Western Barred Bandicoot (eastern subspecies)

 

White-footed Rabbit Rat

 

Chirruping Wedgebill

 

Spotted Bowerbird

 

Freshwater Herring

 

Small-scaled Snake  
30 species of Vascular Plants  
1 species of Non-Vascular Plant  
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