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Ecosystem prioritisation workshop 

In May 2007 a panel of botanists and ecologists was convened to identify priority ecosystems within the ANRMR for the ND003 program. The following is an excerpt from the pdfEcosystem Prioritisation Workshop report.238.31 KB

Data and Data analysis

Beard's and Hopkins' Vegetation Associations (BHVA) are used as the surrogate for ecosystems for this process. BHVAs are biologically based and are currently mapped.

BHVA data for the ANRMR was clipped from the Western Australia dataset. For the purposes of this prioritisation, those BHVA that were exclusively found beyond the agricultural zone were excluded from this analysis: of the 145 BHVAs, 114 have some or all of their extent within the agricultural area.

Workshop Process and Results

The panel was asked to prioritise the BHVA using the criteria of extent remaining compared to pre-European extent, remnant percentage within the conservation estate as well as their own personal knowledge of the level of concern for each of the BHVA and the vegetation communities they contained.

Using [several criteria] and through discussion the panel scored those of high priority as a 1 to low priority as a 5. The panel also considered variations within BHVAs across their range in regards to biological assemblage and, in some instances (there were five of these) divided up BHVAs into different areas and prioritised these differently.

The prioritisation process identified 41 high priority BHVAs within the ANRMR and these are listed below. See the Appendix of the full report for the full list.

The highest priority BHVA's

The highest priority BHVA's (rank of 1) from the BHVA prioritisation process are listed here in no particular priority order but grouped by soil/landscape position category. The four asterisked BHVAs indicate that only one part of the full geographic range attracts the highest priority. BHVAs ranked of lower priority are available in the full report. Endemic BHVAs are noted in the comments field. 

BHVA #

Beards Description

Rank

Soil/Landscape Position

Comments

1271

Bare areas; claypans

1

Clay

931

Medium woodland; yate

1

Fresh

948

Medium woodland; York gum & river gum

1

Fresh

Endemic

1041

Low woodland; Allocasuarina huegeliana & Jam

1

Granite

Combine 954, 1041 and 3041 and visit to check status. High priority.

3041

Mosaic: Low woodland; Allocasuarina huegeliana & jam around granite rocks

1

Granite

Combine 954, 1041 and 3041 and visit to check status. High priority.

954

Shrublands; thicket, Jam & Allocasuarina huegeliana

1

Granite

Endemic
Combine 954, 1041 and 3041 and visit to check status. High priority.

25

Low woodland; Allocasuarina huegeliana & York gum

1

Granite

Small discrete area verify still intact as well as condition

413

Shrublands; Acacia neurophylla & A. species thicket

1

Lat/Sand

Small discrete area verify still intact as well as condition. BHVA 413 and 435 may be the same.

37

Shrublands; teatree thicket

1

Saline

41

Shrublands; teatree scrub

1

Saline

356

Succulent steppe with open woodland; eucalypts over saltbush

1

Saline

Small discrete area verify still intact as well as condition

392

Shrublands; Melaleuca thyoides thicket

1

Saline

631

Succulent steppe with woodland and thicket; York gum over Melaleuca thyoides & samphire

1

Saline

953

Succulent steppe with thicket; teatree over samphire (m5)

1

Saline

1062

Succulent steppe with open woodland & thicket; york gum over Melaleuca thyoides & samphire

1

Saline

950

Medium woodland; Casuarina obesa

1

Saline

Endemic

951

Succulent steppe with sparse woodland & thicket; york gum & Kondinin blackbutt over teatree thicket & samphire

1

Saline

Endemic

959

Succulent steppe with sparse woodland & thicket; yorrell & Kondinin blackbutt over teatree & samphire

1

Saline

Endemic

966

Succulent steppe with sparse woodland & thicket; salmon gum & morel over teatree & samphire

1

Saline

Endemic

1048

Mosaic: Shrublands; melaleuca patchy scrub / Succulent steppe; samphire

1

Saline

Endemic

1080

Succulent steppe with mallee & thickets; Mallee and Melaleuca uncinata thickets on salt flats

1

Saline

Endemic
Small discrete area verify still intact as well as condition

49

Shrublands; mixed heath

1

Sand

An unusual combination, verify what is here

694

Shrublands; scrub-heath on yellow sandplain banksia-xylomelum alliance in the Geraldton Sandplain & Avon-Wheatbelt Regions

1

Sand

1056

Shrublands; thicket, acacia & Allocasuarina campestris

1

Sand

Endemic
Isolated

1147

Shrublands; scrub-heath in the south-east Avon-Wheatbelt Region

1

Sand

Endemic

949

Low woodland; banksia

1*

Sand

Rank 1 for non-coastal; 5 for coastal

352

Medium woodland; York gum

1

Valley Floor

1023

Medium woodland; York gum, wandoo & salmon gum (Eucalyptus salmonophloia)

1

Valley Floor

1053

Shrublands; Melaleuca uncinata thicket with scattered York gum

1

Valley Floor

1200

Mosaic: Medium woodland; salmon gum & morel / Shrublands; mallee scrub Eucalyptus eremophila & black marlock (E. redunca)

1

Valley Floor

145

Mosaic: Medium woodland; York gum & salmon gum / Shrublands; thicket, acacia-casuarina-melaleuca alliance

1

Valley Floor

Endemic
Need to identify what (if any differences are found between these york gum/salmon gum/morel combinations

537

Medium woodland; morel (Eucalyptus longicornis)

1

Valley Floor

Endemic
Need to identify what (if any differences are found between these york gum/salmon gum/morel combinations

945

Mosaic: Medium woodland; salmon gum / Shrublands; mallee scrub, redwood & black marlock

1

Valley Floor

Endemic
Need to identify what (if any differences are found between these york gum/salmon gum/morel combinations

1025

Mosaic: Medium woodland; York gum, salmon gum & morel / Succulent steppe; saltbush & samphire

1

Valley Floor

Endemic
Small discrete area verify still intact as well as condition

1049

Medium woodland; wandoo, York gum, salmon gum, morel & gimlet

1

Valley Floor

Endemic

1059

Mosaic: Medium woodland; salmon gum & gimlet / Shrublands; mallee Eucalyptus longicornis & E. sheathiana scrub

1

Valley Floor

Endemic
Small discrete area verify still intact as well as condition

946

Medium woodland; wandoo

1*

Valley Floor

Rank 1 for eastern (E. capillosa areas); 5 for western

7

Medium woodland; York gum (Eucalyptus loxophleba) & wandoo

1*

Valley Floor

1 outlier mid-Avon; 5 western (ignore Western)

142

Medium woodland; York gum & salmon gum

1*

Valley Floor

1 southern occurrence; 5 elsewhere. Need to identify what (if any differences are found between these york gum/salmon gum/morel combinations.

1061

Mosaic: Medium sparse woodland; salmon gum & yorrell / Succulent steppe; saltbush & samphire

1

VF/Saline

Endemic

1079

Mosaic: Medium open woodland; salmon gum & morel / Succulent steppe; saltbush

1

VF/Saline

Endemic