Key Threatening Process Nomination Form for amending the list of key threatening processes under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) 2012 Assessment Period

This nomination form is designed to assist in the preparation of nominations of threatening processes consistent with the Regulations and EPBC Act. The listing of a key threatening process under the EPBC Act is designed to prevent native species or ecological communities from becoming threatened or prevent threatened species and ecological communities from becoming more threatened.

Many processes that occur in the landscape are, or could be, threatening processes, however priority for listing will be directed to key threatening processes, those factors that most threaten biodiversity at national scale.

For a key threatening process to be eligible for listing it must meet at least one of the three listing criteria. If there is insufficient data and information available to allow completion of the questions for each of the listing criteria, state this in your nomination under the relevant question.

Note – Further detail to help you complete this form is provided at Attachment A. If using this form in Microsoft Word, you can jump to this information by Ctrl+clicking the hyperlinks (in blue text).

Nominated key threatening process 1. NAME OF KEY THREATENING PROCESS Ecosystem degradation, habitat loss and species decline in arid and semi-arid due to the invasion of buffel grass (Cenchrus ciliaris and C. pennisetiformis)

2. CRITERIA UNDER WHICH THE KEY THREATENING PROCESS IS ELIGIBLE FOR LISTING Please mark the boxes that apply by clicking them with your mouse. Criterion A Evidence that the threatening process could cause a native species or ecological community to become eligible for listing in any category, other than conservation dependent.

Criterion B Evidence that the threatening process could cause a listed threatened species or ecological community to become eligible for listing in another category representing a higher degree of endangerment.

Evidence that the threatening process adversely affects two or more listed threatened Criterion C species (other than conservation dependent species) or two or more listed threatened ecological communities. 3. 2012 CONSERVATION THEME: Corridors and connecting habitats (including freshwater habitats) Is the current conservation theme relevant to this key threatening process? If so, explain how.

Corridors and connecting habitats, including freshwater habitats, are extremely relevant to the nominated threatening process (referred hereafter as the “invasion of buffel grass”) on a number of levels, including: - Recognised landscape scale corridors. - Biological corridors and connecting habitats. - Physical corridors.

Landscape corridors Buffel grass is the most significant threat to biodiversity in a number of nationally recognised landscape scale habitat corridors, as identified in the Draft National Wildlife Corridors Plan), including: - “Trans-Australia Eco-Link”, linking northern and south Australia, and - “East meets West”, linking the shrubland and woodlands between Eastern and Western Australia.

The management of the invasion of buffel grass along these corridors will be a key platform to ensure these corridors facilitate the maintenance of biodiversity and the provision of resilience against climate change.

Biological corridors Unassisted invasions of buffel grass typically occur along roads and watercourses. These features are important introduction pathways whereby buffel grass can spread into new landscapes. Ephemeral watercourses and “desert rivers”, which are key biodiversity corridors in arid Australia, are the preferred environment for the establishment and spread of buffel grass in arid Australia (Albrechts and Pitts 1997). In northern South Australia and central Australia, the initial invasion of buffel grass often occurs along red-gum (Eucalyptus camaldulensis) lined ephemeral watercourses, prior to spreading out into the surrounding area (M. Ward pers. obs.). Rivers and creeklines in arid Australia provide refugia for many and animal species due to their enhanced nutrients, water and habitat complexity, and each of these benefits can be negatively affected by dense buffel grass infestations (Humphries et al. 1993). Furthermore, the invasion of buffel grass is very detrimental to many plant and animal species which rely on corridors in facilitating their dispersal. Recently, proposals have been submitted to the Australian Government’s Biodiversity Fund focusing on managing buffel grass along “desert rivers” in the Finke IBRA region, and across the Alinytjara Wilurara NRM Region.

The impact of Buffel grass on arid ecosystem function is significant. This is because creek lines typically act as a blockade to the spread of fire, even when dry, because the soils within the creek do not support the growth of dense, fire-fuelling grasses. Anecdotal evidence indicates that Buffel grass thrives along creek lines in dry environments (Miller et al., 2010). Thus, a feature that should prevent the spread of fire can now transport it, effectively acting as the “wick for the fire” (Humphries et al., 1992 as cited in D’antonio and Vitousek, 1992) and the fear, however sensationalised, is that Buffel grass will transform arid environments such as the Sonora Desert into African-style savannas (e.g. see http://www.youtube.com/watch?v=nQtIVzSrqZY)

Where it occurs, buffel grass is also filling in much of the usual bare-ground spacing between native grasses, shrubs and trees. This bare-ground spacing is a feature of most arid and semi-arid Australian ecosystems, in most years, and helps to stop most wildfires from becoming too extensive and from occurring too often. Buffel grass is significantly altering this ecosystem feature and enabling more catastrophic fires to occur.

Control of buffel grass along invasion pathways is therefore a priority for preventing colonisation of new regions and for limiting the ecological impacts of buffel grass both in key connecting habitats and the adjacent broadscale environment.

Invasion pathways Man-made corridors, including roads, railways and pipelines, are significant pathways for the introduction of buffel grass (Cenchrus ciliaris and C. pennisetiformis) into un-infested regions. Buffel grass seed is spread by graders and other earthmoving equipment and the wind created by vehicles along these corridors (Griffin 1993). Disturbed ground within the corridors, particularly where increased runoff occurs, is able to be rapidly colonised by buffel grass. These corridors can therefore provide a stepping stone for buffel grass infestation into the wider environment once suitable conditions are available.

4. THREAT STATUS Is the key threatening process listed under State/Territory Government legislation? Is the threat recognised under other legislation or intergovernmental arrangements?

Although several regional Natural Resource Management (NRM) Boards and Catchment Management Authorities (CMAs) have identified buffel grass as an important natural resource management issue (South Australian Arid Lands, Alinytjara Wilurara, Western Australian Rangelands, Northern Territory, Friedel et al. 2006), buffel grass has not been declared as a registered weed under relevant legislation in any state (Grice et al. 2011). However, recent studies have demonstrated sufficient common understanding amongst a range of stakeholders that the threats posed by buffel grass to the conservation estate warrant the development of consistent policy for management of buffel grass (Friedel et al. 2011).

Despite not being listed under any state’s legislation, the threat posed by buffel grass is considered ‘very high’ in both the arid rangelands and native vegetation land uses of Australia, with 68% of Australia considered suitable to highly suitable for the establishment of significant buffel grass populations (Lawson et al 2004). As a result, there is currently a range of plans and strategies which identify and target the risk of buffel grass to EPBC matters of environmental

significant at a more local scale. Examples include: - The Draft South Australia Buffel Grass Strategy 2012-2017 identifies the significant threat of buffel grass, outlines a range of management zones to facilitate management, and promotes the formation of a state-wide taskforce to (i) coordinate and facilitate the exchange of information on control initiatives around the State, (ii) provide a clearer overview and better evaluation of the risk to the State from buffel grass, and (iii) recommend better coordination of buffel grass policy. - The Draft Alinytjara Wilurara Fire Management Strategy identifies buffel grass as the single biggest risk to biodiversity (EPBC listed and otherwise), life and property in the Alinytjara Wilurara NRM region which constitutes about 25% of the land area of the State (Alinytjara Wilurara NRM Board 2012). - A risk assessment performed for the biodiversity of the Olympic Dam region considered the risk posed by buffel grass to be extreme, resulting in management targets of eradicating all populations in that region (BHPB 2007) - Buffel grass has been identified as a threat to both the natural and cultural values within the Uluru-Kata Tjuta National Park (UKTNP) and a comprehensive containment and removal policy has been developed for this World Heritage area (UKTNP 2009). - Buffel grass has been identified as a significant threat in a range of threatened species recovery plans (EPBC listed or otherwise, see Sections 10 – 15).

Whilst not specific to buffel grass, there are parts of state plans and legislation which can have influence on the threat of buffel grass. In South Australia, for example: - Section 4(b) (ii) of the SA Pastoral Land Management and Conservation Act, 1989, provides legislative basis for preventing the introduction of non-indigenous such as buffel grass in order to “prevent degradation of the land and its indigenous plant and animal life”. - Also, Goal 4 of the State NRM Plan: Integrated management of biological threats to minimise risks to natural systems, communities and industry

Description of the key threatening process 5. DESCRIPTION Describe the threatening process in a way that distinguishes it from any other threatening process, by reference to: a. its biological and non-biological components; b. the processes by which those components interact (if known). Buffel grass (Cenchrus ciliaris and C. pennisetiformis) comprises a suite of species and ecotypes originating from Africa and the Middle East but now rapidly colonising arid ecosystems in Australia and North America. CLIMAX modelling has shown that 25% of Australia, primarily in central Australia, is highly suitable for buffel grass whilst a further 43% is suitable for C. ciliaris establishment (Lawson et al. 2004). Jessop et al (2004) report that “Bates considers that C. pennisetiformis may become a greater threat than C. ciliaris in southern Australia”. Therefore, both species are considered together in this nomination. Recent evidence suggests that climatic tolerances and hence potential distribution of buffel grass are increasing as a result of new cultivars (Hacker & Waite 2001) or hybridisation (Friedel et al. 2006). For example, BIOCLIM modelling predicts that 69.5% of South Australia is highly or very highly suitable, and no part of the State's land area is entirely unsuitable, for establishment of buffel grass (Marshall and Hobbs 2010).

Buffel grass is a long-lived, deep-rooted and high biomass tussock grass that out-competes native vegetation through a number of processes. It is characterised by prolonged flowering/fruiting periods, prolific seed production, high seed dispersal ability, relatively long seed dormancy and tolerance to drought, fire and grazing (Franks 2002; Franks et al. 2000). Unlike many other weeds and native grasses, new buffel grass germinants can grow and set seed in as little as 3 to 6 weeks with sufficient moisture, and re-shooting mature plants can flower within 10 days after a rainfall event (Puckey and Albrecht 2004), especially after wildfires, as the ashes are reported to make good seedbeds (Paul and Lee 1978). Although buffel grass favours creeks, alluvial plains, calcareous areas and rocky ranges (Albrecht and Pitts 1997), it easily naturalises on a range of soil types and quickly forms self-sustaining populations under a range of disturbance regimes (Franks 2002). Buffel grass predominates in areas where summer rainfall ranges from 150-550 mm, winter rainfall is less than 400 mm, mean minimum winter temperatures rarely fall below 5oC, and soil texture is loamy (Cox et al. 1988), however, it has been successful in a broad range of soil types and landscapes.

When buffel grass is dense it can dominate light and space, reducing opportunities for native vegetation establishment (Miller 2003). Even at lower densities, buffel grass reduces soil nitrogen (Humphreys 1967), exhausting the mineral pool (Cavaye 1991) and also inhibits plant regeneration and growth through allelopathic suppression (Cheam 1984). Buffel grass aggressively colonises riparian habitats where it forms dense monocultures, displacing native vegetation. These

mesic areas are functionally critical in a landscape where water is limiting to growth. Such mesic areas are also nutrient sinks and tend to support higher flora and fauna productivity, including endemic or rare species (Humphries et al. 1993).

Although buffel grass monocultures pose a significant threat to native vegetation and adapted biodiversity within their own right, it is the subsequent risk that buffel grass poses through fire that is of most threat to biodiversity, indigenous culture, life and property. Buffel grass produces approximately 2-3 times the combustible material of displaced native grasses, which results in hotter, more intense wildfires (Humphries 1993). Buffel grass threatens plant and animal communities that are not adapted to fire, by increasing the intensity and frequency of natural fire regimes (Adair and Groves 1998; NBIIISSG 2005). Unlike most grassy weeds that primarily only affect groundcover vegetation, the invasion of the canopy shadow of trees by highly flammable buffel grass threatens keystone arid zone trees such as river red gums (Eucalyptus camaldulensis), corkwoods (Hakea species) and beefwoods (Grevillea striata, Friedel et al 2006) with flow-on effects to other plants and animals.

For example, the Rare and Threatened Flora Management Plan for the APY Lands of NW South Australia (Paltridge et al. 2009) identifies 12 flora species in that region alone under threat from buffel grass. Buffel grass threatens stands of long-unburnt vegetation, for example red gum and mulga woodlands, hummock and Triodia grasslands, and the fauna that rely on these. High species richness of vertebrates including a suite of hollow-dependent birds, mammals and reptiles is directly threatened by increased fire intensity and frequency in woodland habitats (Neave et al. 2004). Triodia specialist fauna, including grasswrens (Paltridge et al 2009), spinifex bird, and many reptile species also lose shelter/nesting sites and food resources when Triodia is displaced by buffel grass. Granivorous birds and rodents such as delicate mouse, finches and some parrots that do not include buffel grass seeds in their diets declined as the cover of buffel grass increased (Ludwig et al. 2000; Franks et al. 2000). Other localised populations of threatened species (e.g. warru (black-flanked rock-wallaby), malleefowl and great desert skink) are also threatened by buffel grass-driven transformation of their specialised habitats (Paltridge et al 2009). Buffel grass can also affect invertebrates through changes in habitat structure (Best 1998) and fire regimes (Butler and Fairfax 2003).

These biological processes that make buffel grass such a threat in arid and semiarid Australia closely mirror the effects of other high biomass and flammable introduced grasses (e.g. Gamba Grass, Mission Grass) that have already been recognised as a Key Threatening Process in tropical and subtropical regions of Australia. Through its dramatic and sustained ecological transformation, buffel grass invasion poses a far greater threat than all other invasive weeds of central Australia. Other arid zone weeds, including those recognised as Weeds Of National Significance, are either largely restricted to disturbed or fertile patches, are outcompeted by native species in dry seasons, or do not exhibit traits such as the aforementioned fire feedback loop that cause major ecosystem upheaval.

In summary, buffel grass is considered one of Australia’s worst weeds (Humphries et al. 1991) and a ‘transformer weed’ of the Australian rangelands (Grice 2006, Bastin et al. 2008) due to its ability to transform the basic attributes of habitats. It is widely considered to be the most debilitating weed of natural ecosystems in arid and semi-arid Australia and directly or indirectly displaces and threatens a large percentage of native and endemic plants and animals of arid and semi-arid Australia (Best 1998; McIvor 1998; Fairfax and Fensham 2000; Franks 2002; McIvor 2003; Griffen 1993; Latz 1997; Low 1997; Ludwig et al. 2000; Butler and Fairfax 2003; Miller 2003; Puckey and Albrecht 2004; Clarke, et al 2005; Paltridge et al. 2009; Smythe et al. 2009).

Criterion A: non-EPBC act listed species/ecological communities 6. SPECIES THAT COULD BECOME ELIGIBLE FOR LISTING AND JUSTIFICATION Provide details and justification of non-EPBC Act listed species that, due to the impact of the key threatening process, could become eligible for listing in any category, other than conservation dependent. For each species please include: a. the scientific name, common name (if appropriate), category it could become eligible for listing in; b. data on the current status in relation to the criteria for listing; c. specific information on how the threatening process threatens this species; and d. information on the extent to which the threat could change the status of the species in relation to the criteria for listing.

IUCN category under Information on the extent to which Species / Category it which it could become Common Specific Information on how KTP the threat could change the status of Reference / Community could become Data on Current status listed through ongoing Name threatens species the species in relation to the criteria Information Scientific Name listed in invasion and threats of for listing Buffel Grass Endemic to Central Ranges IBRA region. All populations surveyed Buffel grass promotes inappropriate on the APY Lands contain very fire regimes. The ongoing invasion of few individuals and are under buffel grass across the Central Ranges Warrants a current listing. Ongoing APY Rare and Melaleuca Wrinkled threat from inappropriate fire IBRA ranges will not only outcompete invasion of Buffel Grass and associated Threatened Plant fulgens subsp. Endangered Endangered: A.3. B.1.b.i. Honey Myrtle regimes. Total Area of this species but also increase the fires could see a population size Management Plan corrugata Occupancy in South Australia is frequency and intensity of fires, posing reduction of >50% in next ten years. (Paltridge et al 2009) less than 5km2. Total number of a threat to small and isolated endemic mature individuals is known to be plant species. less than 2500 individuals

Buffel grass promotes inappropriate Currently only two populations of fire regimes. The ongoing invasion of A. tenuior known, the buffel grass across the Central Ranges Warrants a current listing. Ongoing APY Rare and Central combination of small population Critically IBRA ranges will not only outcompete invasion of Buffel Grass and associated Critically Endangered: Threatened Plant tenuior Ranges size and disjunct population Endangered this species but also increase the wildfires could see a population size A.3.B.2.b.i. Management Plan Wattle means that this species is at risk frequency and intensity of fires, posing reduction of >80% in next ten years. (Paltridge et al 2009) of extinction form catastrophic a threat to small and isolated endemic events posed from Buffel Grass plant species.

Buffel grass promotes inappropriate fire regimes. The ongoing invasion of buffel grass across the Central Ranges Warrants a current listing. Ongoing APY Rare and Eremophila Musgrave Currently only one population IBRA ranges will not only outcompete invasion of Buffel Grass and associated Threatened Plant willsii subsp. Ranges Endangered known from Australia, in APY Endangered: A.3. B.1.b.i. this species but also increase the fires could see a population size Management Plan indeterminate Fuschia Lands. frequency and intensity of fires, posing reduction of >50% in next ten years. (Paltridge et al 2009) a threat to small and isolated endemic plant species.

IUCN category under Information on the extent to which Species / Category it which it could become Common Specific Information on how KTP the threat could change the status of Reference / Community could become Data on Current status listed through ongoing Name threatens species the species in relation to the criteria Information Scientific Name listed in invasion and threats of for listing Buffel Grass Few known populations. Although Warrants a current listing. Ongoing known populations have many buffel invasion and associated APY Rare and individuals, they are highly clumped in Calostemma Everard Three known populations. Area inappropriate fire regimes could see Threatened Plant Vulnerable distribution making them vulnerable to Vulnerable:B.2.b. abdicatum Garland Lily of occupancy 0.04km2 current Area Of Occupancy of less than Management Plan major perturbations. Major buffel grass 2000km2 continue to decline (P. Lanf (Paltridge et al 2009) fire could see this species negatively pers. comm.) impacted upon.

Highly sensitive to fire - killed by the mildest of fires and populations would APY Rare and Mount Relatively abundant but restricted require a fire frequency of less than 25 Ongoing buffel invasion could see Threatened Plant Acacia ammobia Connor Vulnerable to Mt Connor / Uluru district of years. Buffel grass promotes very hot current number of individuals of >30% Vulnerable: A.3. Management Plan Wattle the Central Ranges Region fires. Ongoing invasion of buffel grass over next three generations (Paltridge et al 2009) in Central Ranges, therefore, poses a threat to this species in the long-term

Goodenia brunnea is a primary Ongoing buffel invasion and APY Rare and Central Limited distribution - endemic to successional plant following fire. If Goodenia outcompeting Goodenia brunnea could Threatened Plant Ranges Vulnerable Central Ranges region. Total Buffel grass becomes the dominant Vulnerable: B.1.b.i brunnea see Extent of Occurrence to reduce less Management Plan Goodenia extent of occurrence 27,523km2 successional species, it will than 20,000km2 (Paltridge et al 2009) outcompete Goodenia brunnea.

NATIONAL Buffel Grass currently known to be RECOVERY PLAN Small population sizes and significantly encroaching on two largest Ongoing buffel invasion and associated FOR Olearia limited distribution to APY Lands known remaining populations. Fire fire effects could see population size macdonnellensis, Showy Teucrium reidii Endangered in Central Ranges region. Total sensitive plant. Inappropriate fire remain at fewer than 10,000 mature Vulnerable: C.1 Minuria tridens Germander known population size probably regimes and competition from Buffel individuals and an estimated continuing (Minnie Daisy) and <5000 individuals nationally Grass will significantly affect this decline of at least 10% within ten years Actinotus schwarzii species status. (Desert Flannel- flower) Uncontrolled buffel invasion and Distribution limited to rocky ranges associated fire effects could see Sminthopsis Long-tailed where buffel colonises rapidly. population size remain at fewer than Vulnerable Very scattered populations Vulnerable: C.1 longicaudata Dunnart Vulnerable to habitat destruction 10,000 mature individuals and an through inappropriate fire regimes estimated continuing decline of at least 10% within ten years

7. ECOLOGICAL COMMUNITIES THAT COULD BECOME ELIGIBLE FOR LISTING AND JUSTIFICATION Provide details and justification of non-EPBC Act listed ecological communities that, due to the impact of the key threatening process, could become eligible for listing in any category. For each ecological community please include: a. the complete title (published or otherwise generally accepted), category it could become eligible for listing in; b. data on the current status in relation to the criteria for listing; c. specific information on how the threatening process threatens this ecological community; and d. information on the extent to which the threat could change the status of the ecological community in relation to the criteria for listing.

Information on the extent to which IUCN category under which it Category it could Data on Specific Information on how KTP threatens the threat could change the status could become listed through Reference / Common Name become listed in Current status species of the species in relation to the ongoing invasion and threats Information criteria for listing of Buffel Grass Desert rivers of the Central Ranges and the Finke River system are threatened by the invasion of In a state of buffel grass, which initially colonises in the Desert Rivers of rapid decline ephemeral creek beds, from where it spreads out Uncontrolled spread of buffel grass will the Central Vulnerable due to invasion to surrounding areas. Uncontrolled, hot wildfires cause a rapid decline in desert river Vulnerable Ranges and of feral animals from this buffel grass invasion then destroys systems Finke region and plants significant Red Gum Eucalyptus camaldulensis woodlands which are important habitat for birds and mammals.

Criterion B: Listing in a higher category of endangerment 8. SPECIES THAT COULD BECOME ELIGIBLE FOR LISTING IN A HIGHER CATEGORY OF ENDANGERMENT AND JUSTIFICATION Provide details and justification of EPBC Act listed threatened species that, due to the impacts of the threatening process, could become eligible for listing in another category representing a higher degree of endangerment. For each species please include: a. the scientific name, common name (if appropriate), category that the item is currently listed in and the category it could become eligible for listing in; b. data on the current status in relation to the criteria for listing (at least one criterion for the current listed category has been previously met); c. specific information on how the threatening process significantly threatens this species; and d. information on the extent to which the threat could change the status of the species in relation to the criteria for listing. This does not have to be the same criterion under which the species was previously listed.

IUCN category under Category it Information on the extent to which Current which it could become Species Scientific Common could become Data on Current Specific Information on how KTP the threat could change the status Reference / Listing listed through ongoing Name Name eligible for status threatens species of the species in relation to the Information Category invasion and threats of listing criteria for listing Buffel Grass Buffel grass promotes hot wildfires Black- which can destroy fire sensitive Uncontrolled buffel grass Warru Petrogale lateralis footed vegetation on which warru rely, such encroachment on warru habitat and Declining populations Recovery Plan MacDonnell rock- Vulnerable Endangered as Figs (Ficus) and Spearbush associated negative impacts could Endangered: A.3 across its range. (Read and Ranges Race wallaby / (Pandorea sp.). Uncontrolled spread of see a population size reduction of > Ward 2011) Warru buffel grass will threaten remaining 50% over the next ten years populations of warru Very few remaining populations. Uncontrolled buffel grass invasion Restricted to alluvial http://www.nt. could see population size drop to plains in central areas gov.au/nreta/w Reduced food and feeding success in fewer than 250 mature individuals Liopholis slateri Slater's Critically of the MacDonnell Critically Endangered: ildlife/animals/t Endangered buffel dominated habitats. Increase in and a continuing decline in numbers slateri Skink Endangered region of the Northern C.2.a.(i) hreatened/pdf/ fire frequency. of mature individuals and no Territory. Total herps/egernia subpopulation estimated to contain population thought to _slateri_en.pdf more than 50 mature individuals be 200-300 individuals

Uncontrolled buffel grass invasion could see population size drop to Liopholis Only known from four Reduced food and feeding success in fewer than 250 mature individuals Liopholis slateri Critically Critically Endangered: slateri Endangered individuals and not buffel dominated habitats. Increase in and a continuing decline in numbers virgata Endangered C.2.a.(i) virgata seen since 1914 fire frequency. of mature individuals and no subpopulation estimated to contain more than 50 mature individuals

National Recovery Plan

Seven isolated Ongoing spread of buffel grass will http://www.env populations spread Tjakura / change the structure of preferred open Uncontrolled spread of buffel grass ironment.gov. across WA, NT and Great feeding grounds of Tjakura, as well as could see a reduction in population au/biodiversity Liopholis kintorei Vulnerable Endangered South Australia Endangered: A.3 Desert promoting frequent wildfires which will size over >50% over the next ten /threatened/pu totalling Skink completely change the structure of years. blications/reco approximately 6000 preferred vegetation. very/great- individuals desert- skink/index.ht ml

IUCN category under Category it Information on the extent to which which it could become Species Scientific Commo Current Listing could become Data on Current Specific Information on how KTP the threat could change the status Reference / listed through ongoing Name n Name Category eligible for status threatens species of the species in relation to the Information invasion and threats of listing criteria for listing Buffel Grass

Few remaining populations. Extent of Mallee Emu-wrens are restricted to occurrence estimated An uncontrolled infestation of buffel Triodia and heath of particular age http://www.env at The extent of grass with associated wildfire in the since fire. The invasion of buffel grass ironment.gov. occurrence is primary distribution in western on the sandy country in which they live au/biodiversity Mallee conservatively Victoria could see could see Critically would result in an increase in fire Critically Endangered: /threatened/sp Stipiturs mallee Emu- Endangered estimated at 3856 km² population size reduced rapidly to Endangered frequency and replacement of native C.2.a.(i) ecies/pubs/59 wren and declining very fewer than 250 individuals and a vegetation with buffel grass which is 459- rapidly. Estimated continuing decline with no inappropriate for mallee emu-wrens conservation- population size 1440 subpopulations estimated to contain replacement by buffel will remove advice.pdf to 2814 mature more than 50 mature individuals habitat individuals and declining rapidly The refuges of the dusky hopping- http://www.env mouse are in fire sensitive habitats ironment.gov. which will be destroyed with the large The invasion of buffel grass into au/biodiversity Dusky Has a restricted fires that buffel grass monocultures refuge habitats and subsequent /threatened/sp Notomys fuscus Hopping Vulnerable Endangered distribution to refuges can carry. The distribution of the dusky negative effects could see an Endangered: A.3 ecies/pubs/12 Mouse during dry periods. hopping-mouse corresponds with observed population size reduction of 5- highly suitable buffel grass habitat, >50% over a ten year period. conservation- particularly along the ephemeral advice.pdf creeklines of the channel country. The spread of Buffel Grass (Cenchrus http://www.nt. ciliaris) is expected to have degraded Four records. The The invasion of buffel grass into gov.au/nreta/w the habitat at all known locations and it Desert extent of occurrence Desert Sand Skipper habitat could ildlife/animals/t Critically is believed this will lead to the Critically Endangered: Croitana aestival Sand Endangered for the Desert Sand- see the area of occupancy reduced to hreatened/pdf/ Endangered continued decline of the species B.2.b.(ii) Skipper skipper estimated to less than 10km2 and a continuing inverts/desert_ (Braby et al. 2007; TSSC 2006v) be less than 100 km² decline sandskipper_ through loss of their native grass larval EN.pdf. food plants.

Information on the extent to IUCN category under Category it Current which the threat could which it could become Species Scientific Common could become Data on Current Specific Information on how KTP Reference / Listing change the status of the listed through ongoing Name Name eligible for status threatens species Information Category species in relation to the invasion and threats of listing criteria for listing Buffel Grass

Olearia macdonnellensis is likely killed by Confined to the fire and recovery time requires low fire MacDonnell Ranges frequencies. The invasion of buffel grass is Bioregion where it is likely to increase the threat of fire and these currently known from populations. Once established, buffel-grass several isolated has the ability to negatively affect both M. populations, mainly in tridens and O. macdonnellensis directly http://www.env the central-western An uncontrolled infestation of through resource competition. This is likely ironment.gov. portion of the buffel grass within the known to be especially intense at early life stages, au/biodiversity MacDonnell Ranges. population could see an Area of Olearia leading to heightened recruitment failure if /threatened/pu NA Vulnerable Endangered Total area of Occupancy of less than 500km2 Endangered: B. 2. b (i) macdonnellensis germination and establishment requirements blications/reco occupancy is and a continuing decline in can no longer be met. O. macdonnellensis very/pubs/dais estimated to be < 20 extent of occurrence and area would be particularly affected if, like many of ies-flannel- km2. All populations of occupancy its congeners, it has a light requirement for flower.pdf are considered germination. Both species are additionally necessary for its long- potentially threatened by increased fire term survival and intensity and frequency in severely affected recovery. Buffel grass sites. Buffel-grass produces large amounts listed in Recovery of biomass which, when dried, represents a Plan as key threat. significant increase in site fuel load. Minuria tridens is threatened by the invasion of the exotic perennial grass Cenchrus ciliaris (buffel grass) into core habitat areas. The Alice Springs Municipality sites are most severely affected. Once established, buffel- grass has the ability to negatively affect both Minuria tridens is M. tridens and O. macdonnellensis directly http://www.env restricted to through resource competition. This is likely Uncontrolled buffel grass ironment.gov. approximately 20 to be especially intense at early life stages, invasion could see Area of au/biodiversity scattered populations Minnie leading to heightened recruitment failure if occupancy reduce to less than /threatened/pu Minuria tridens Vulnerable Endangered on south facing slops B.2.b.i.ii. Daisy germination and establishment requirements 500 km2 and continuing decline blications/reco of the MacDonnell can no longer be met. O. macdonnellensis in extent of occurrence and very/pubs/dais Ranges IBRA region. would be particularly affected if, like many of area of occupancy ies-flannel- Area of Occupancy its congeners, it has a light requirement for flower.pdf less than 2000km2 germination. Both species are additionally potentially threatened by increased fire intensity and frequency in severely affected sites. Buffel-grass produces large amounts of biomass which, when dried, represents a significant increase in site fuel load.

Information on the extent to IUCN category under Category it Current which the threat could which it could become Species Scientific Common could become Data on Current Specific Information on how KTP Reference / Listing change the status of the listed through ongoing Name Name eligible for status threatens species Information Category species in relation to the invasion and threats of listing criteria for listing Buffel Grass Endemic to a small part of the East MacDonnell Ranges. http://www.nt. Uncontrolled buffel grass A restricted area of Acacia undoolyana is sensitive to fire and gov.au/nreta/w invasion could see Area of occupancy of <2000 requires low fire frequencies, and is ildlife/animals/t Sickled- occupancy reduce to less than Acacia undoolyana Vulnerable Endangered km2. Extent of therefore threatened by increased fire B.2.b.i.ii. hreatened/pdf/ leaf wattle 500 km2 and continuing decline occurrence <20 000 intensity and frequency from buffel grass plants/Acacia_ in extent of occurrence and km2. A continuing fires. undoolyana_V area of occupancy and inferred decline U.pdf due to an increase in fire frequency Endemic to the Finke http://www.env Uncontrolled buffel grass bioregion where it is Acacia latzii is slow growing and sensitive to ironment.gov. invasion could see Area of restricted to two areas fire and requires low fire frequencies, and is au/biodiversity Latz's occupancy reduce to less than Acacia latzii Vulnerable Endangered about 200km apart. therefore threatened by increased fire B.2.b.i.ii. /threatened/pu wattle 500 km2 and continuing decline Total known area of intensity and frequency from buffel grass blications/pub in extent of occurrence and occupancy < fires. s/r-gloria- area of occupancy 2000km2 medii.pdf

http://www.env Small number of Uncontrolled buffel grass ironment.gov. remaining populations Prostranthera nudula is sensitive to fire is invasion could see Area of au/biodiversity Prostanthera Naked endemic to the APY therefore threatened by increased fire occupancy reduce to less than Vulnerable Endangered B.2.b.i.ii. /threatened/sp nudula Mintbush Lands. Area of intensity and frequency from buffel grass 500 km2 and continuing decline ecies/pubs/70 occupancy < 2000 fires. in extent of occurrence and 91- km2 area of occupancy conservation- advice.pdf

http://www.nt. gov.au/nreta/w Uncontrolled buffel grass ildlife/animals/t invasion could see Area of Palm Small number of hreatened/spe Thryptomene buffel invading limited rocky habitat and occupancy reduce to less than valley Vulnerable Endangered remaining B.2.b.i.ii. cieslist.html). hexandra increasing fire threat 500 km2 and continuing decline Myrtle populations. in extent of occurrence and

area of occupancy

9. ECOLOGICAL COMMUNITIES THAT COULD BECOME ELIGIBLE FOR LISTING IN A HIGHER CATEGORY OF ENDANGERMENT AND JUSTIFICATION Provide details and justification of EPBC Act listed threatened ecological communities that, due to the impacts of the threatening process, could become eligible for listing in another category representing a higher degree of endangerment. For each ecological community please include: a. the complete title (published or otherwise generally accepted), category that the item is currently listed in and the category it could become eligible for listing in; b. data on the current status in relation to the criteria for listing (at least one criterion for the current listed category has been previously met); c. specific information on how the threatening process significantly threatens this ecological community; and d. information on the extent to which the threat could change the status of the ecological community in relation to the criteria for listing. This does not have to be the same criterion under which the ecological community was previously listed.

Criterion C: Adversely affected listed species or ecological communities 10. SPECIES ADVERSELY IMPACTED AND JUSTIFICATION Provide a summary of species listed as threatened under the EPBC Act, that are considered to be adversely affected by the threatening process. For each species please include: a. the scientific name, common name (if appropriate) and category of listing under the EPBC Act; and b. justification for each species that is claimed to be affected adversely by the threatening process.

Species Current Category Justification for each species that is claimed to be affected Common Name Scientific Name Listing adversely by the threatening process “Total population currently thought to be 200-300 animals. No threatening processes have been positively demonstrated, although degradation of its alluvial habitat as a result of invasion by the introduced buffel grass and associated changes in fire regimes appears the most likely causes of the species’ decline. In particular, the decline Liopholis slateri Slater’s Skink Endangered and disappearance of Slater’s skink is correlated with the introduction slateri of buffel grass (Cenchrus ciliaris) into central Australia in the late 1960s. This weed has radically altered the vegetation structure and species composition of drainage systems in central Australia. Buffel grass is now the dominant ground cover at the type locality and surrounding alluvial areas.” The spread of Buffel Grass (Cenchrus ciliaris) is expected to have Desert Sand degraded the habitat at all known locations and it is believed this will Croitana aestival Endangered Skipper lead to the continued decline of the species (Braby et al. 2007; TSSC 2006v) through loss of their native grass larval food plants. Minuria tridens is threatened by the invasion of the exotic perennial Minuria tridens Minnie Daisy Vulnerable grass, Cenchrus ciliaris (buffel grass) into core habitat areas. The Alice Springs Municipality sites are most severely affected. O. macdonnellensis is threatened by wildfire (Kerrigan et al. 2006). Olearia MacDonnell Buffel-grass is highly abundant in run on areas throughout the Vulnerable macdonnellensis Ranges Olearia MacDonnell Ranges and is therefore likely to occupy the creek lines where O. macdonnellensis occurs. Decline is inferred due to an increase in fire frequency (Soos et al. 1987; Latz 1992; Pitts et al. 1995). Widespread infestations of the Acacia introduced buffel grass Cenchrus ciliaris may detrimentally affect this Undoolya Wattle Vulnerable undoolyana species, particularly by increasing fire frequency and intensity in adjacent alluvial land systems, such that fires can more readily spread into Acacia undoolyana stands. Continued invasion of buffel grass into arid woodlands will increase the Leiopoa ocellata Malleefowl Vulnerable fire frequency, removing key food plants and habitat in which they build their mounds – especially mulga / minyura woodlands and shrublands. For all these species the invasion of buffel grass will significantly Dasycercus Mulgara Vulnerable change the structure and composition of their preferred habitat and cristicauda remove key resources through competition and wildfire.

11. ECOLOGICAL COMMUNITIES ADVERSELY IMPACTED AND JUSTIFICATION Provide a summary of ecological communities listed as threatened under the EPBC Act that are considered to be adversely affected by the threatening process. For each ecological community please provide: a. the complete title (exactly as listed) and category of listing under the EPBC Act; and b. justification for each ecological community that is claimed to be affected adversely by the threatening process.

Threat Abatement

12. THREAT ABATEMENT Give an overview of how threats posed by this process are being abated by current (or proposed) activities. Identify who is undertaking these activities and how successful the activities have been to date.

Consultation through this nomination process and previous survey research has demonstrated considerable common ground across a range of stakeholders and suggestions that a national threat abatement plan should be considered (Friedel et al. 2011, Grice et al. 2011). This would be very timely, because there are currently only three known buffel grass management strategies / procedures, etc., and a national threat abatement plan could lead ongoing management which will no doubt increase in the coming years as the threat of buffel grass continues to spread. Current officially- recognised buffel grass management activities in broader are outlined below.

The DENR Alinytjara Wilurara (AW) Region has recognised buffel grass as a significant threat to its unique biodiversity and cultural assets, and in particular the EPBC listed species which occur within its boundaries. The AW NRM Board are currently investing in the following management - One Authorised Officer and one dedicated indigenous Buffel Grass Project Officer whose role it is to support the AW DENR's aspirational goal of eradicating buffel grass from the southern two thirds of the region. - Management activities of these staff primarily exist around mapping and spraying known buffel grass colonies. - AW DENR also support and facilitate training for indigenous land management authorities in order to increase the capacity to manage buffel grass. - AW DENR is currently preparing a buffel grass operational strategy, which will fall under the South Australian Buffel Grass Strategy, and outline priorities and workplans to ensure buffel grass is managed strategically within the region - AW DENR is also supporting research which is investigating better aerial mapping techniques (Marshall 2012). - Overall, there has been good success in the southern part of the AW region, where buffel grass is in low densities. However, with increasing densities outside the region and on transport corridors leading into the region, there is a strong need for a broader approach.

The DENR South Australian Arid Lands Region has prepared a draft Buffel Grass Management Plan (Greenfield, 2007) with the following objectives: - Take steps to prevent further deliberate introductions of buffel grass into the SAAL NRM regions. - Stakeholder awareness of buffel grass and its negative impacts improved. - A measurable reduction in buffel grass distribution in key areas achieved. - The impacts of buffel grass across the SAAL region strategically monitored.

Uluru Kata Tjutja National Park (UKTNP), management efforts have included (UKTNP 2009): - Mapping buffel grass distribution at one or both of the monoliths (1991 and 2003) - An on-going control program utilising Conservation Volunteers Australia (CVA) focusing in the past on Uluru and Kata Tjuta and lately just at Uluru - Opportunistic control activities by operational rangers targeting infrastructure around Uluru - Removal of buffel grass at the women’s sacred site Pulari.

Overall, there are considerable challenges to the control of buffel grass in northern and central Australia: its physiological and ecological characteristics; its widespread geographic distribution; the extensive area infested; the land use present and, the current level of community awareness regarding impacts of this species (Greenfield 2007). In addition, wind and water can potentially move buffel grass seed many kilometres in a single event. Below is a summary

of the major challenges of buffel grass management: - Once established there is no single control method available for the successful management of buffel grass over extensive areas (Tu 2002). Prevention is the most cost-effective means of weed control. It is important therefore to keep currently un-infested areas free of buffel grass, particularly near high value assets. Information on the distribution of buffel grass, including where control works have been completed, is critical to support planning. The degree of detail required would vary with the scale and purpose of the planning, for example planning in eradication areas with scattered plants requires knowledge down to single plant level. - As the current extent of buffel grass in northern and central Australia precludes absolute control, effort needs to be guided by decision making based on biodiversity values and other assets potentially at risk, logistics, and available resources. - Chemical and mechanical methods, and in some situations fire can be used in an integrated control program for buffel grass. All methods may be effective in particular situations depending on the infestation density and extent, terrain, resources, and the management objectives (e.g. eradication or containment). There is potential to improve the effectiveness of control methods for some sites and to then disseminate the knowledge to weed managers and landholders. Control methods should be complementary. Control programs require several years of follow-up that may increase the cost several-fold; in some situations the long-term costs can make control of large dense infestations uneconomic. - Buffel grass must be actively growing for effective uptake of herbicides. In arid or semi-arid regions of South Australia the period of active growth is unpredictable and may be short-lived and timing is therefore very important for control. Foliar application of select herbicides to young plants or regrowth following rain provides the best opportunity for success. Simple physical removal of buffel grass may be considered for new, small infestations particularly where the plants are bearing seed and the plants are not in an active growth phase. Fire or slashing and herbicides may be integrated to improve foliar uptake and to manage larger infestations. The high cost of herbicides and associated labour is a hindrance to control. All control programs require several years of follow-up treatment and monitoring, which further increases the cost. Control and eradication of infestations must be carried out on all tenures including government and Aboriginal lands.

Given the vast challenges of effective buffel grass management, biological control is considered the single most cost effective management method for dense areas of buffel grass, particularly at sites where species listed under the EPBC Act (1999) are located, and matters of national environmental significance. However, as buffel grass is recognised as a valuable forage species in some parts of Australia, the use of highly mobile biological control agents requires careful consideration. Less mobile agents may however assist with the control, even eradication of buffel grass from areas remote from pastoral activities. These areas typically also coincide with the highest conservation value and hence highest buffel grass risk

13. DEVELOPMENT OF THREAT ABATEMENT PLAN Would the development of a threat abatement plan be a feasible, effective and efficient way to abate the process? What other measures could be undertaken? The nominators and all those consulted through the development of this nomination strongly support the development of a national threat abatement plan for buffel grass, in order to increase our ability to strategically manage buffel grass beyond the boundaries of individual parks or NRM regions. This is best summarised by Grice et al. (2011), who suggested “national recognition of the issues should facilitate interstate collaboration and co-ordination, yield economies of scale and improve access to Commonwealth resources (e.g., to support research)”. A national approach and strategy is the only way forward in tackling the deleterious impacts that buffel grass will have on EPBC listed species.

Other measures which will also progress the management of buffel grass and should be considered include - A feasibility study to determine the possibility of localised biological control in Australia - An awareness raising campaign which highlights to community and landholders the deleterious impacts that buffel grass can have not only on biodiversity, but also the high risk to life, property and indigenous culture (see below). - A nation-wide landholder survey to rigorously assess the attitudes towards buffel grass. - Support for action in determining the impact that buffel grass has on carbon storage across Australia.

14. ELEMENTS TO BE INCLUDED IN A THREAT ABATEMENT PLAN If the threatening process is recommended for listing under the EPBC Act, what elements could a threat abatement plan include? A Threat Abatement Plan for Buffel Grass should include - A prioritisation of areas for exclusion, elimination and control of buffel grass across Australia. - Guidelines and stipulations on limiting the spread of buffel grass adjacent to areas of high conservation value - An outline for support of research into optimal techniques of limiting or removing buffel grass from high value conservation areas - Quarantine and Biosecurity measures to ensure that no new varieties/strains of buffel grass are imported into Australia - Recommendation for the formation of a National Taskforce 15. ADDITIONAL THREAT ABATEMENT INFORMATION Is there other information that relates to threat abatement that you would like to provide?

Indigenous Values 16. INDIGENOUS CULTURAL SIGNIFICANCE Is the key threatening process known to have an impact on species or country culturally significant to Indigenous groups within Australia? If so, to which groups? Provide information on the nature of this significance if publicly available. Because of its distributional overlap with much of central Australia, buffel grass is now distributed across much of the western desert aboriginal lands of central Australia, including: - Anangu Pitjantjatjara Yankunytjatjara (APY) Lands (South Australia) - Maralinga Tjarutja Lands (South Australia) - Mamungari Conservation Park (Co-managed with SA DENR) - Nyaanyatjarra Lands (Western Australia) - Central Land Council (Northern Territory) - Uluru-Kata Tjuta National Park In the APY Lands, buffel grass was deliberately introduced in the 1980’s into Kalka community in order to suppress dust, which was causing health issues. With the benefit of hindsight, the proponents of this strategy now recognise that the costs of buffel grass introduction (considerably increased fire risk within settlements, obstruction of clear ground used for hunting, sitting, camping) outweigh the health benefits that could have also been achieved with native, or less invasive plant species (M. Last pers. comm.). Anecdotal evidence and personal communications in the APY Lands has indicated that buffel grass is currently, and will also in the future, have a significant impact on a number of traditional cultural activities, including: - hunting for malu (red kangaroos. as the dense monocultures prevent ease of access and clear spaces for hunting) - threats and access to mulga woodlands where tjala (honeyants) are gathered - threats and access to ilykuwara (Acacia kempeana) woodlands where maku (witchetty grubs) are gathered - threats to communities and homelands posed by the wildfire risk.

Within UKTNP, buffel grass is recognised as a threat to both the natural and cultural values (UKTNP 2009). Sacred sites and other significant cultural areas are at risk due to the grasses ability to increase fire intensity and frequency, damaging rock art and other less tangible cultural assets. Qualitative evidence suggests that this increase in fire intensity and frequency also poses significant threats to native communities, many of which are fire sensitive. Further, buffel grass’s ability to out-compete native grasses and form monocultures in the understorey is thought to destroy habitat for many species of vertebrates and invertebrates within the park (UKTNP 2009).

17. MAJOR STUDIES Identify major studies that might assist in the assessment of the nominated threatening process. Butler, D.W. and Fairfax, R.J. (2003). Buffel and fire in a Gidgee and Brigalow woodland: a case study from

central Queensland. Ecological Management and Restoration 4: 120-125.

Friedel, M., Puckey, H., O’Malley, C., Waycott, M., Smyth, A. and Miller, G. (2006). Buffel grass: both friend and foe. An evaluation of the advantages and disadvantages of buffel grass use and recommendations for future research. Desert Knowledge Cooperative Research Centre, Alice Springs.

Friedel, M., Puckey, H., O‟Malley, C., Waycott, M. and Smyth, A. (2006). The dispersal, impact and management of buffel grass (Cenchrus ciliaris) in desert Australia. Proceedings of the 14th Biennial Conference of the Australian Rangelands Society, Renmark pp 160- 163.

Lawson, B. E., Bryant, M. J., and Franks, A. J. (2004). Assessing the potential distribution of buffel grass (Cenchrus ciliaris L.) in Australia using a climate-soil model. Plant Protection Quarterly 19, 155–163.

Marshall V. M., Lewis M. M. and Ostendorf B. (2012) Buffel grass (Cenchrus ciliaris) as an invader and threat to biodiversity in arid environments: A review. Journal of Arid Environments 78, 1-12.

Miller, G. (2003). Ecological impacts of Buffel (Cenchrus ciliaris L.) in central Australia – does field evidence support a fire-invasion feedback? Honours Thesis, University of NSW, Australia.

18. FURTHER INFORMATION Identify relevant studies or management documentation that might relate to the species (e.g. research projects, national park management plans, recovery plans, conservation plans, threat abatement plans, etc.).

Best, R. (1998). The effect of introduced Buffel (Cenchrus ciliaris L. Poaceae) on the diversity and abundance of invertebrates in semi-arid central Australia. Honours Thesis, Northern Territory University.

Butler, D.W. and Fairfax, R.J. (2003). Buffel and fire in a Gidgee and Brigalow woodland: a case study from central Queensland. Ecological Management and Restoration 4: 120-125.

Duguid, A., and Schunke, D. (1998). Final Report on Project 290 Acacia undoolyana (Undoolyana Wattle) Species Recovery Plan. (Parks and Wildlife Commission of the Northern Territory, Alice Springs.)

Ford, M. (2009). Foraging ecology, diet and prey availability in a population of the endangered skink, Egernia slateri ssp. slateri (Squamata: Scincidae), at Owen Springs Reserve. Honours thesis submitted to Charles Darwin University.

Franks, A. J. (2002). The ecological consequences of buffel grass Cenchrus ciliaris establishment within remnant vegetation of Queensland. Pacific Conservation Biology 8, 99-107.

Friedel, M., Puckey, H., O’Malley, C., Waycott, M., Smyth, A. and Miller, G. (2006). Buffel grass: both friend and foe. An evaluation of the advantages and disadvantages of buffel grass use and recommendations for future research. Desert Knowledge Cooperative Research Centre, Alice Springs.

Friedel, M., Puckey, H., O‟Malley, C., Waycott, M. and Smyth, A. (2006). The dispersal, impact and management of buffel grass (Cenchrus ciliaris) in desert Australia. Proceedings of the 14th Biennial Conference of the Australian Rangelands Society, Renmark pp 160- 163.

Friedel, M., Marshall, N., van Klinken, R and Grice, T., (2009) Quantifying costs and benefits of buffel grass. Defeating the Weed Menace R&D report to the Australian Government. http://lwa.gov.au/files/products/defeating-weed-menace/pn22410/pn22410.pdf

Friedel, M.H., Grice, A.C., Marshall, N.A and van Klinken R.D. (2011). Reducing contention amongst organisations dealing with commercially valuable but invasive plants: The case of buffel grass. Environ. Sci. Policy (2011), doi:10.1016/j.envsci.2011.08.001

Grice, A. C. (2006). The impact of invasive plant species on the biodiversity of Australian rangelands. The Rangeland Journal 28, 27–35.

Grice, A.C., Friedel, M.H., Marshall, N.A. and Van Klinken, R.D. (2011) Tackling Contentious Invasive Plant Species: A Case Study of Buffel Grass in Australia. Environmental Management DOI 10.1007/s00267-011-9781-6.

Griffin, G. F. (1993). The spread of buffel grass in inland Australia: land use conflicts. Proceedings I: 10th Australian Weeds Conference and 14th Asian Pacific Weed Science Society Conference, pp. 501-504. Weed Society of Queensland: Brisbane.

Lang, P. J. (2008). Calostemma abdicatum (Amaryllidacaeae), a new species of Garland Lily endemic to the Everard Ranges, and a comparison of the three species within Calostemma R.Br. Journal Adelaide Botanic Gardens 22: (2008) 47–56.

Latz, P.K. (1992). Conservation research statement: Acacia undoolyana Leach. ANPWS Endangered Species programme Project proposal, March 1992. (Conservation Commission of the Northern Territory, Alice Springs.)

Marshall V. M., Lewis M. M. and Ostendorf B. (2012) Buffel grass (Cenchrus ciliaris) as an invader and threat to biodiversity in arid environments: A review. Journal of Arid Environments 78, 1-12.

McAlpin, S. F. (2000). Nomination for listing a native species as a threatened species under the Environment Protection and Biodiversity Conservation Act 1999 – Egernia slateri. Submission to Environment Australia.

Miller, G. (2003). Ecological impacts of Buffel (Cenchrus ciliaris L.) in central Australia – does field evidence support a fire-invasion feedback? Honours Thesis, University of NSW, Australia.

Nano, C. and Pavey, C. 2008 National Recovery Plan for Olearia macdonnellensis, Minuria tridens (Minnie Daisy) and Actinotus schwarzii (Desert Flannel Flower). Department of Natural Resources, Environment, The Arts and Sport, Northern Territory.

Paltridge, R. (2010) Final Report on the Loves Creek Slater’s Skink Monitoring Project. Report produced for the Central Land Council and Threatened Species Network, Desert Wildlife Services, Northern Territory, Australia.

Pavey, C. R. (2004). Recovery Plan for Slater’s Skink, Egernia slateri, 2005–2010. Northern Territory Department of Infrastructure, Planning and Environment, Northern Territory Government, Alice Springs, Northern Territory, Australia.

Pavey, C. (2007). Slater’s Skink Egernia slateri. In J. Woinarski, C. Pavey, R. Kerrigan, I. Cowie and S. Ward (eds.), Lost from Our Landscape: Threatened species of the Northern Territory, pp. 176–177. Northern Territory Government, Darwin, Northern Territory, Australia.

Paltridge R., Latz P., Pickburn A. and Eldridge S. (2009) Management Plan for Rare and Threatened Flora in the Anangu Pitjantjatjara Yankunytjatjara Lands of South Australia. In: Department for Environment and Heritage, Adelaide.

Pavey, C., Burwell, C. and Nano, C. (in press). Foraging ecology and habitat use of Slater’s Skink (Egernia slateri): an endangered Australian desert lizard. Accepted for publication in Journal of Herpetology.

Pearson, D. J. (2010). Recovery Plan for five species of rock-wallabies: black-flanked rock-wallaby (Petrogale lateralis), Rothschild’s rock-wallaby (Petrogale rothschildi), short-eared rock-wallaby (Petrogale brachyotis), monjon (Petrogale burbidgei) and nabarlek (Petrogale concinna). Department of Environment and Conservation, Perth.

Pitts, B., Schunke, D., and Parsons, D. (1995). Species recovery plan for Acacia undoolyana – recovery action 2.4: GIS analysis. (Parks and Wildlife Commission of the Northern Territory, Alice Springs.)

Puckey, H., and Albrecht, D. (2004). Buffel grass (Cenchrus ciliaris L.) presenting the arid Northern Territory experience to our South Australian neighbours. Plant Protection Quarterly 19, 69-72.

Puckey, H., Brock, C. and Yates, C. (2007). Improving the landscape scale management of buffel grass (Cenchrus ciliaris) using aerial survey, predictive modeling, and a Geographic Information System. Pacific Conservation Biology 13: 1-10.

Read, J. and Ward, M.J. (2011a). Warru Recovery Plan – Recovery of Petrogale lateralis MacDonnell Ranges Race in South Australia. Warru Recovery Team, South Australia., DENR, Adelaide.

Smyth, A., Friedel, M.D. and O’Malley, C. (2009). The influence of buffel grass (Cenchrus ciliaris) on biodiversity in an arid Australian landscape. Rangeland Journal 31:307-320.

UKTNP (2009). Uluru-Kata Tjuta National Park Buffel Grass Strategy 2009-2014.

Ward, M.J., Urban, R., Read, J.L., Dent, A., Partridge, T., Clarke, A., vanWeenen, J. (2011). Status of warru (Petrogale lateralis MacDonnel Ranges race) in the Anangu Pitjantjatjara Yankunytjatjara Lands of South Australia. 1. Distribution and decline. Australian Mammalogy 33: 135-41.

19. REFERENCE LIST Please list key references/documentation you have referred to in your nomination. Albrecht, D., Latz, P and Westaway, J. (2011) Proposed Changes to Conservation Status of Species in the NT – Sporobolus latzii. Department of NRETAS, Darwin.)

Best, R. (1998). The effect of introduced Buffel (Cenchrus ciliaris L. Poaceae) on the diversity and abundance of invertebrates in semi-arid central Australia. Honours Thesis, Northern Territory University.

BHP Billiton Olympic Dam (2007) Weed Risk Assessment. Olympic Dam, South Australia.

Butler, D.W. and Fairfax, R.J. (2003). Buffel and fire in a Gidgee and Brigalow woodland: a case study from central Queensland. Ecological Management and Restoration 4: 120-125.

Carpenter, G. & J.S. Matthew (1986). The birds of Billiatt Conservation Park. South Australian Ornithologist. 30:29-37.

Carpenter, G. & J.S. Matthew (1992). Western records of the Mallee Emu-wren Stipiturus mallee. South Australian Ornithologist. 31:125.

Cheam, A.H. (1984). Allelopathy in Buffel (Cenchrus ciliaris L.) Part 1. Influence of Buffel association on Calotrope (Calotropis procera (Ait). Australian Weeds 3: 133-136.

Clarke, R. (2005). Recovery Plan for the Mallee Emu-wren Stipiturus mallee, Striated Grasswren Amytornis striatus,Red-lored Whistler Pachycephala rufogularis and Western Whipbird Psophodes nigrogularis lecuogaster, South Australian Murray Darling Basin. Department for Environment and Heritage, Adelaide.

Clarke, R. (2007). Surveys for Mallee Emu-wrens Within the Murray Mallee Reserve System, Victoria, Spring 2006. Interim Report - Unpublished report to Department for Sustainability and Environment, Melbourne.

Duguid, A., and Schunke, D. (1998). Final Report on Project 290 Acacia undoolyana (Undoolyana Wattle) Species Recovery Plan. (Parks and Wildlife Commission of the Northern Territory, Alice Springs.)

Eldridge, M.D.B. (1997). of rock-wallabies, Petrogale (Marsupialia: Macropodidae). II. An historical review. Australian Mammalogy 19: 113-122.

Fairfax, R. J., and Fensham, R. J. (2000). The effect of exotic pasture development on floristic diversity in central Queensland, Australia. Biological Conservation 94, 11–21.

Ford, M. (2009). Foraging ecology, diet and prey availability in a population of the endangered skink, Egernia slateri ssp. slateri (Squamata: Scincidae), at Owen Springs Reserve. Honours thesis submitted to Charles Darwin University.

Franks, A. J. (2002). The ecological consequences of buffel grass Cenchrus ciliaris establishment within remnant vegetation of Queensland. Pacific Conservation Biology 8, 99-107.

Franks, A.J., Butler, D. and Fairfax, R. (2000) A weed by any other name. Wildlife Australia 37, 24.

Freeland, W.J., Winter, J.W., and Raskin, S. (1988). Australian rock mammals: A phenomenon of the seasonally dry tropics. Biotropica 20, 70-79.

Friedel, M., Puckey, H., O’Malley, C., Waycott, M., Smyth, A. and Miller, G. (2006). Buffel grass: both friend and foe. An evaluation of the advantages and disadvantages of buffel grass use and recommendations for future research. Desert Knowledge Cooperative Research Centre, Alice Springs.

Friedel, M., Puckey, H., O‟Malley, C., Waycott, M. and Smyth, A. (2006). The dispersal, impact and management of buffel grass (Cenchrus ciliaris) in desert Australia. Proceedings of the 14th Biennial Conference of the Australian Rangelands Society, Renmark pp 160- 163.

Friedel, M., Marshall, N., van Klinken, R and Grice, T., (2009) Quantifying costs and benefits of buffel grass. Defeating the Weed Menace R&D report to the Australian Government. http://lwa.gov.au/files/products/defeating-weed-menace/pn22410/pn22410.pdf

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20. APPENDIX Please place here any figures, tables or maps that you have referred to within your nomination. Alternatively, you can provide them as an attachment.

- map of Australia distribution - anything else? EPBC search tool maps for listed entities??? - 21. DECLARATION I declare that, to the best of my knowledge, the information in this nomination and its attachments is true and correct. I understand that any unreferenced material within this nomination will be cited as ‘personal communication’ (i.e. referenced in my name) and I permit the publication of this information.

Signed:

Date:

* If submitting by email, please attach an electronic signature

Where did you find out about nominating items? The Committee would appreciate your feedback regarding how you found out about the nomination process. Your feedback will ensure that future calls for nominations can be advertised as widely as possible.

Please tick  DSEWPAC website Australian newspaper  word of mouth Journal/society/organisation web site or email? if so which one…………………………………………………………………. web search Other…………………………………………………………………………………..