Dasyurus Viverrinus (Eastern Quoll)
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Consultation Document on Listing Eligibility and Conservation Actions Dasyurus viverrinus (eastern quoll) You are invited to provide your views, and reasons supporting them, related to: 1) the eligibility of Dasyurus viverrinus (eastern quoll) for inclusion on the EPBC Act threatened species list in the Endangered category; and 2) the necessary conservation actions for the above species. Note: The information contained in this conservation advice was primarily sourced from ‘The Action Plan for Australian Mammals 2012’ (Woinarski et al., 2014). Any substantive additions obtained during the consultation on the draft will be cited within the advice. Readers may note that conservation advices resulting from the Action Plan for Australian Mammals show minor differences in formatting relative to other conservation advices. These are reflective of the desire to achieve efficiency over preparation of a large number of advices by adopting the approach of the Action Plan for Australian Mammals in presentation of information and do not reflect any difference in the evidence used to develop the recommendation. Evidence provided by experts, stakeholders and the general public are welcome. Responses can be provided by any interested person. Anyone may nominate a native species, ecological community or threatening process for listing under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) or for a transfer of an item already on the list to a new listing category. The Threatened Species Scientific Committee (the Committee) undertakes the assessment of species to determine eligibility for inclusion in the list of threatened species and provides its recommendation to the Australian Government Minister for the Environment. Responses are to be provided in writing either by email to: [email protected] or by mail to: The Director Marine and Freshwater Species Conservation Section Wildlife, Heritage and Marine Division Department of the Environment PO Box 787 Canberra ACT 2601 Responses are required to be submitted by 8 May 2015. Contents of this information package Page General background information about listing threatened species 2 Information about this consultation process 2 Draft information about the eastern quoll and its eligibility for listing 3 Conservation actions for the species 8 References cited 10 Consultation questions 12 Dasyurus viverrinus (eastern quoll) consultation Page 1 of 13 General background information about listing threatened species The Australian Government helps protect species at risk of extinction by listing them as threatened under Part 13 of the EPBC Act. Once listed under the EPBC Act, the species becomes a Matter of National Environmental Significance (MNES) and must be protected from significant impacts through the assessment and approval provisions of the EPBC Act. More information about threatened species is available on the department’s website at: http://www.environment.gov.au/biodiversity/threatened/index.html. Public nominations to list threatened species under the EPBC Act are received annually by the department. In order to determine if a species is eligible for listing as threatened under the EPBC Act, the Threatened Species Scientific Committee (the Committee) undertakes a rigorous scientific assessment of its status to determine if the species is eligible for listing against a set of criteria. These criteria are available on the Department’s website at: http://www.environment.gov.au/biodiversity/threatened/pubs/guidelines-species.pdf. As part of the assessment process, the Committee consults with the public and stakeholders to obtain specific details about the species, as well as advice on what conservation actions might be appropriate. Information provided through the consultation process is considered by the Committee in its assessment. The Committee provides its advice on the assessment (together with comments received) to the Minister regarding the eligibility of the species for listing under a particular category and what conservation actions might be appropriate. The Minister decides to add, or not to add, the species to the list of threatened species under the EPBC Act. More detailed information about the listing process is at: http://www.environment.gov.au/biodiversity/threatened/nominations.html. To promote the recovery of listed threatened species and ecological communities, conservation advices and where required, recovery plans are made or adopted in accordance with Part 13 of the EPBC Act. Conservation advices provide guidance at the time of listing on known threats and priority recovery actions that can be undertaken at a local and regional level. Recovery plans describe key threats and identify specific recovery actions that can be undertaken to enable recovery activities to occur within a planned and logical national framework. Information about recovery plans is available on the department’s website at: http://www.environment.gov.au/biodiversity/threatened/recovery.html. Information about this consultation process Responses to this consultation can be provided electronically or in hard copy to the contact addresses provided on Page 1. All responses received will be provided in full to the Committee and then to the Australian Government Minister for the Environment. In providing comments, please provide references to published data where possible. Should the Committee use the information you provide in formulating its advice, the information will be attributed to you and referenced as a ‘personal communication’ unless you provide references or otherwise attribute this information (please specify if your organisation requires that this information is attributed to your organisation instead of yourself). The final advice by the Committee will be published on the department’s website following the listing decision by the Minister. Information provided through consultation may be subject to freedom of information legislation and court processes. It is also important to note that under the EPBC Act, the deliberations and recommendations of the Committee are confidential until the Minister has made a final decision on the nomination, unless otherwise determined by the Minister. Dasyurus viverrinus (eastern quoll) consultation Page 2 of 13 Dasyurus viverrinus Eastern quoll Taxonomy Conventionally accepted as Dasyurus viverrinus (Shaw, 1800). No subspecies are recognised. Species Information Description The eastern quoll has fawn or black fur, which is covered with small white spots of varying sizes except on the tail. The tail is bushy and may have a white tip. The ears are large. Males have a head and body length of 32-45 cm and a tail length of 20-28 cm; females are slightly smaller. Compared to the related spotted-tail quoll (Dasyurus maculatus) the eastern quoll is slightly built with a pointed muzzle, and has only four toes on the hindfoot (Jones, 2008; Department of Primary Industries, Parks, Water and Environment, 2012). Distribution The eastern quoll was previously widespread in mainland south-eastern Australia including New South Wales (NSW NPWS, 1999), Victoria (Menkhorst, 1995) and eastern South Australia (Jones, 2008). It became extinct on the mainland around the mid-1960s (Menkhorst, 1995; Jones, 2008; DPIPWE, 2012), with sightings at Kew and Ivanhoe, Melbourne, until the early 1960s and maybe later (P. Menkhorst pers. comm., cited in Woinarski et al., 2014). The last confirmed mainland sighting was at Vaucluse, NSW, in 1963 (Dickman et al., 2001). It is now restricted to Tasmania and Bruny Island (Tasmania). Rounsevell et al. (1991) recorded it in 30% of 10 km x 10 km grids in Tasmania and reported that it was not present in large tracts of rainforest. Jones et al. (2014) reported a high probability of occurrence over much of the eastern half and central-north coast of Tasmania, with areas of intermediate probability extending to about the eastern two-thirds of the island and to the north-west of Tasmania, with isolated populations in the south-west. Similar results were found using MAXENT climate modelling (Johnson et al., 2012). The eastern quoll distribution is associated with low to moderate mean annual rainfall and includes a range of more open habitats, including open grassland (including farmland), tussock grassland, grassy woodland, dry eucalypt forest, coastal scrub and alpine heathland (Jones & Rose, 1996; Jones & Barmuta, 2000). It tends to be absent from large tracts of wet eucalypt forest and rainforest, unless these are adjacent to open and tussock grassland and heath. Relevant Biology/Ecology The eastern quoll is largely solitary. It is nocturnal and only occasionally forages or basks during daylight. It is found in a variety of habitats including rainforest, heathland, alpine areas and scrub. However, it prefers dry grassland and forest mosaics which are bounded by agricultural land, particularly where pasture grubs are common (DPIPWE, 2012; Jones et al., 2014). During the day, animals sleep in nests made under rocks, in underground burrows or fallen logs. The eastern quoll is an opportunistic carnivore that takes live prey and scavenges. It is an impressive hunter, taking mammals such as rabbits, mice and rats, and small elapid snakes and skinks. It sometimes scavenges morsels of food from around feeding Tasmanian Devils (Sarcophilus harrisii). However, the main component of its diet at lower altitudes is invertebrates, especially agricultural pests such as the cockchafer beetle and corbie grub. In alpine