DARLING RIVERINE PLAINS BIOREGION Background Report

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16/08/02 Darling Riverine Plains Bioregion Background Report Common name Scientific name Conservation Number of Dataset status records Australian bustard Ardeotis australis E1, NTGC 70 BA (2), AM (5), WLA (62), Cul(1) 1 Calamanthus fuliginosus has recently been split into two separate species, striated fieldwren Calamanthus fuliginosus, and the rufous fieldwren Calamanthus campestris (Christides and Boles 1994). The rufous fieldwren occurs in the DRP, with recent records from near Menindee (Map 36). To date the impact of this taxonomic revision on the schedules of the TSC Act and their interpretation have yet to be determined. Key V Vulnerable under schedule 2 TSC Act (1995) An asterix denotes those species which are also listed as nationally vulnerable under the EPBC Act. E Endangered under schedule 1 TSC Act (1995) J JAMBA: agreement between the government of Australia and the government of Japan for the protection of migratory birds and birds in danger of extinction and their environment C CAMBA: agreement between the government of Australia and the government of the People’s Republic of China for the protection of migratory birds and their environment EGC endangered as defined by Garnett and Crowley 2000 VGC vulnerable as defined by Garnett and Crowley 2000 NTGC near threatened as defined by Garnett and Crowley 2000 *ExSPS Extinct at a national and taxon level as defined by Smith et al 1994 *ESPS Endangered at a national and taxon level as defined by Smith et al 1994 *VSPS vulnerable at a national and taxon level as defined by Smith et al 1994 *VnSPS vulnerable at a national and taxon level as defined by Smith et al 1994 with recent records probably only non-breeding *PTSPS possibly threatened at a national and taxon level as defined by Smith et al 1994 ExSPS extinct in New South Wales as defined by Smith et al 1994 EvSPS endangered in New South Wales as defined by Smith et al 1994 with recent records probably only vagrants VSPS vulnerable in New South Wales as defined by Smith et al 1994 PTSPS possibly threatened in New South Wales as defined by Smith et al 1994 ExWDSPS extinct in the western division of New South Wales as defined by Smith et al 1994 PTWDSPS possibly threatened in the western division of New South Wales as defined by Smith et al 1994 PTnWDSPS possibly threatened in the western division of New South Wales as defined by Smith et al 1994 with recent records probably only nonbreeding BA Birds Australia Dataset WLA Atlas of NSW Wildlife Dataset AM Australian Museum Dataset CSIRO CSIRO Dataset Bor Boronga NR Biodiversity Survey Cul Culgoa and Birrie River Floodplain Vertebrate Fauna Survey Lum Lumeah (Narran Lake NR) Biodiversity Survey Narw Narran Lake NR Waterbird Monitoring Program Tra Trangie Agricultural Research Centre - Faunal Biodiversity Survey MD Murray Darling Water Management Action Plan - Natural Resources Study (note: some records may have been detected outside the DRP) This list of threatened species occurring in the DRP is not necessarily comprehensive, as it includes only the datasets identified in Section 5.1. Other species, such as Hall’s babbler from Culgoa National Park have also been recorded (NPWS 2001b). The endangered swift parrot (Lathamus discolor), squatter pigeon (Geophaps scripta), and plains wanderer (Pedionomus torquatus), and the vulnerable scarlet-chested parrot (Neophema splendida), southern scrubrobin (Drymodes brunneopygia), masked owl (Tyto novaehollandiae) and pied honeyeater (Certhionyx variegatus) are predicted by bioclimatic analysis to occur in the DRP. In their analysis of the birds of conservation concern of the New South Wales western division, Smith et al. (1994) defined 60 threatened species and sub-species of native birds. Twenty-three of these are listed as threatened at the national level (EPBC Act), 23 are listed as threatened in New South Wales (TSC Act) and 14 considered under threat in the Western Division. Smith et al. (1994) also identified another 31 species of conservation concern because of their restricted breeding distribution in the division. This analysis includes more habitats than are present in the DRP bioregion. The analysis by Smith et al. (1994) is complemented by the analysis of threatened and declining birds in the New South Wales sheep-wheat belt (Reid 1999) which covers the eastern portion of the DRP. In addition to the species formally listed under the TSC Act, this 104
16/08/02 Darling Riverine Plains Bioregion Background Report analysis identified declining species. Eighty-five species of birds were identified in at least one study of wheatbelt birds to be locally extinct, declining or otherwise at risk and 16 species were identified to be locally extinct, declining or otherwise at risk in at least three studies. These were the emu (Dromaius novaehollandiae), painted button-quail (Turnix varia), brown treecreeper, chestnut-rumped thornbill (Acanthiza uropygialis), southern whiteface (Aphelocephala leucopsis), jacky winter (Microeca fascinans), red-capped robin (Petroica goodenovii), eastern yellow robin (Eopsaltria australis), white-browed babbler (Pomatostomus superciliosus), varied sittella (Daphoenositta chrysoptera), crested shrike-tit (Falcunculus frontatus), crested bellbird, rufous whistler (Pachycephala rufiventris), restless flycatcher (Myiagra inquieta), white-browed woodswallow (Artamus superciliosus) and dusky woodswallow (Artamus cyanopterus). All of these species are found within the DRP. They occur in temperate eucalypt woodland habitats and represent a suite of formerly common and widespread bird species of the woodlands of the DRP that is in decline. Traill and Duncan (2000) also assessed the conservation status of woodland birds in NSW and defined the eastern population of the crested bellbird as an endangered population, and another ten species as ‘near threatened’, as defined by IUCN criteria. They also defined a temperate woodland bird community and suggested that this community satisfies the criteria required for listing as an endangered ecological community. Historical evidence indicates a massive change in the abundance and distribution of the flock bronzewing in the DRP. Collectors and naturalists from 1839 to 1920 recorded this species on a number of occasions on the northern plains in the Narrabri, Moree and Gwydir districts, occasionally in large flocks (thousands) and breeding. In more recent times, there have been few records from the DRP, with the most recent being of a single bird south west of Goodooga in 1988. The decline of this pigeon throughout its range in New South Wales, where it is now only an irregular visitor, has been linked to the spread of livestock and rabbits and their impact on grassland habitats (McAllan 1996). Waterbird habitats and breeding requirements have also been adversely affected by human activities. Major change to hydrological regimes, combined with clearing and agricultural activities has substantially decreased the amount of inland waterfowl habitat and breeding sites and has changed flooding regimes (Briggs et al.1994). 5.4.3 Regionally endemic species and significant populations No threatened populations of birds have been listed for the bioregion in the TSC Act but several species have a large proportion of their total distribution within the bioregion. These include the spotted bowerbird (Chlamydera maculata), striped honeyeater (Plectorhyncha lanceolata) and plum-headed finch (Neochmia modesta). In New South Wales, the red-tailed black cockatoo is closely associated with Eucalyptus camaldulensis woodland, requiring the large hollows for nesting (Smith et al. 1994). Nearly all records of red-tailed black cockatoos in New South Wales are from the DRP bioregion, primarily in the vicinity of the Barwon- Darling River. This population of the red-tailed black cockatoo may also be isolated from other populations of the species (Simpson et al. 1999). The conservation of this population, and the other bird species identified as having large portions of their range within the DRP, will depend on land management within the DRP. 105
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DARLING RIVERINE PLAINS BIOREGION B
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For more information data contact t
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3.2 Vegetation Mapping and Descript
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10 APPENDICES 166 A CLIMATIC DATA B
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List of Maps Chapter 1 Map 1 Locati
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PROJECT SUMMARY This report forms p
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abbits are listed as key threatenin
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ainfall (mm) 900 800 700 600 500 40
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Appendix A: Mean Monthly Rainfall a
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Major Rangetype Rangetype Physiogra
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Appendix C : Native Flora Other Tha
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Family Scientific Name Common Name
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Family Scientific Name cretica Comm
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APPENDIX E: Fauna Other than Those
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Common Name Scientific Name No Reco
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Common 1983 1984 1985 1986 1987 198
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Common Name 1983 1984 1985 1986 198
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Taxa No Records Dataset Class Arach
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Taxa No Records Dataset Family Hebr
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Taxa No Records Dataset Tabanidae s
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Taxa No Records Dataset Berosus sp
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