Territory Stories

Plant species and sites of botanical significance in the southern bioregions of the Northern Territory

Details:

Title

Plant species and sites of botanical significance in the southern bioregions of the Northern Territory

Other title

Matthew White ... [et al.]

Creator

White, Matthew; Albrecht, David; Duguid, Angus W.; Latz, Peter; Hamilton, Mary

Collection

E-Publications; PublicationNT; E-Books

Date

2000-12-00

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).; This report provides a benchmark for the conservation status of botanical values in the southern, predominantly arid part of the Northern Territory. It will have many and varied uses, providing information about conservation values to land holders and managers as well as government departments and conservation groups.

Table of contents

Volume 1 : Significant vascular plants -- Volume 2 : Significant sites

Language

English

Subject

Plants -- Northern Territory -- Alice Springs Region; Northern Territory -- Alice Springs Region

Publisher name

Arid Lands Environment Centre

Place of publication

Alice Springs (N.T.)

Format

2 v. : maps ; 30 cm.

File type

application/pdf.

ISBN

0724527842 (v. 1); 0724527850 (v. 2)

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/243744

Citation address

https://hdl.handle.net/10070/601270

Related items

https://hdl.handle.net/10070/601264; https://hdl.handle.net/10070/601266; https://hdl.handle.net/10070/601268

Page content

Volume 2, Part 2, page 246 Simpson-Strzelecki Dunefields 9.2 SITES OF NATIONAL SIGNIFICANCE IN THE NT PORTION OF THE SIMPSONSTRZELECKI DUNEFIELDS BIOREGION Site: 24-4-1 Rodinga Level of significance: national Location: 24 24' S 134 50' E; North west margin of the Simpson Desert. Area: 787 km2 Map sheets: Rodinga SG 53-2 & Hale River SG 53-3 Bioregions: Simpson-Strzelecki Dunefields (SSD 99.3%) & Finke (FIN 0.7%) Tenure: Pastoral Lease - Alambi (51% of site), Ringwood (13% of site), Horseshoe Bend (3% of site) and Todd River (25% of site) Stations; Freehold - Pmere Nyente Aboriginal Land Trust (5% of site), Yewerre Aboriginal Land Trust (2% of site) Description: This site includes an extensive system of low sandstone ranges and minor outlying hills fringing the Simpson Desert. It includes the Rodinga and Pillar Ranges and the Train Hills, mapped as 5 discrete polygons. The geology of the Rodinga Range and the associated ranges is mainly Silurian/Devonian sandstones of the Mereenie Group. These sandstones are porous and are the most important water bearing rock formations in central Australia. On the southern fall of these ranges the sequence includes Cambrian limestones, dolomites and siltstones. More recently, gypsum deposits have formed in places as a result of the precipitation of solutes from groundwaters. The soils of the ranges are generally shallow lithosols. At the foot of the ranges there is little colluvium and some sand dunes continue onto the range. Notes: The site is largely free of spinifex (Triodia spp.), and as such contrasts with much of the Macdonnell Ranges where Triodia dominated understoreys are almost ubiquitous. Acacia desmondii is endemic to these ranges and hence the site contains the type population. The undulating sand plains at the northern fall of the Rodinga Range support the most easterly stands of Allocasuarina decaisneana. Criteria satisfied: B1 b1 i) Taxa of Australian significance: Acacia desmondii {3R [NSEW]}, Harnieria kempeana subsp. kempeana {3RC-} Taxa of NT significance: Bulbine alata {3k}, Ixiochlamys nana {3kC-} Taxa of Southern NT (study area) significance: none Taxa of bioregional significance: Corymbia eremaea subsp. oligocarpa {SSD (eastern range limit) [E] only known in SSD from this site}, Josephinia eugeniae s.lat. {SSD (disjunct)}, Ozothamnus kempei {SSD (southern range limit) [S]}, Solanum orbiculatum subsp. macrophyllum {SSD (eastern range limit) [E] only known in SSD from this site} Other taxa only known in SSD bioregion (NT portion) from this site: Amaranthus interruptus, Aristida strigosa, Cymbopogon ambiguus, Cyperus bulbosus, Eragrostis lacunaria, Eriachne mucronata, Goodenia hirsuta, Grahamia australiana, Hibiscus sturtii var. campylochlamys, Paspalidium clementii, Streptoglossa bubakii Type locations of the following were collected from the site: Acacia desmondii Vegetation Map Units (mapped as occurring at the site on the 1:1000,000 NT Vegetation Survey Map): Map unit 92 (17 %): Triodia brizoides (Hillside Spinifex) hummock grassland with mixed species low open-woodland overstorey. Map unit 61 (2 %): Complex of mixed species low open-woodland between dunes with Zygochloa paradoxa (Sandhill Cane Grass) open-hummock grassland on dune crests. Map unit 63 (1 < %): Acacia georginae (Gidyea) low open-woodland with open-grassland understorey. Map unit 27 (1 < %): Eucalyptus microtheca s. lat. (Coolibah) low open-woodland with open-grassland understorey. Map unit 66 (3 %): Acacia aneura (Mulga) tall open-shrubland with Senna, Eremophila (Fuchsia) open-shrubland understorey. Map unit 83 (1 < %): Triodia basedowii (Hard Spinifex) or Triodia pungens (Soft Spinifex) hummock grassland with Eucalyptus gamophylla (Blue Mallee), Acacia tall sparse-shrubland overstorey. Map unit 70 (18 %): Acacia aneura (Mulga) tall sparse-shrubland with Senna, Eremophila (Fuchsia) low sparse-shrubland understorey. Map unit 85 (42 %): Triodia basedowii (Hard Spinifex) hummock grassland with Acacia tall sparse shrubland overstorey between dunes and Zygochloa paradoxa (Sandhill Cane Grass) open-hummock grassland on dune crests. Map unit 87 (14 %): Triodia (Spinifex) open-hummock grassland with Acacia aneura tall sparse-shrubland overstorey.


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