Addendum to Flora and Vegetation Survey Pinjarra‐Williams Road (SLK 24.4–65.5) (NGH Environmental, 2012) Prepared for SW Environmental 12th April 2017 PO Box 1180 Bunbury WA 6231 [email protected] Statement of limitations Reliance on Data In the preparation of this report, Ecoedge has relied on data, surveys, analyses, designs, plans and other information provided by the Client and other individuals and organisations, most of which are referred to in the report. Unless stated otherwise in the report, Ecoedge has not verified the accuracy or completeness of the data. To the extent that the statements, opinions, facts, information, conclusions and/or recommendations in the report are based in whole or in part on the data, those conclusions are contingent upon the accuracy and completeness of the data. Ecoedge will not be liable in relation to incorrect conclusions should any data, information or condition be incorrect or have been concealed, withheld, unavailable, misrepresented or otherwise not fully disclosed to Ecoedge. Report for Benefit of Client The report has been prepared for the benefit of the Client and for no other party. Ecoedge assumes no responsibility and will not be liable to any other person or organisation for or in relation to any matter dealt with or conclusions expressed in the report, or for any loss or damage suffered by any other person or organisation arising from matters dealt with or conclusions expressed in the report (including, without limitation, matters arising from any negligent act or omission of Ecoedge or for any loss or damage suffered by any other party relying on the matters dealt with or conclusions expressed in the report). Other parties should not rely upon the report or the accuracy or completeness of any conclusions, and should make their own enquiries and obtain independent advice in relation to such matters. Ecoedge will not be liable to update or revise the report to take into account any events or emergent circumstances or facts occurring or becoming apparent after the date of the report. 1 Introduction This report will form an addendum to the report on a survey carried out in 2012, during which the Project Area (Pinjarra‐Williams Road, SLK 24.4 ‐ 40.0) was surveyed as part of a larger area (NGH Environmental, 20121). The Project Area was surveyed on 18th October 2012 by walking along both sides of the road and searching within the study area (widths as per Table 1). A comprehensive list of native and introduced species was compiled. Taxa that were not able to be identified with certainty in the field were photographed or collected for later identification. Taxonomy and conservation status of species found during the SLK 24.4‐40.0 section of the 2012 survey were checked against current information from existing species and communities identified in the 2012 survey and considered against up‐to‐date Naturemap and EPBC searches. While the 2012 survey was mainly concerned with determining whether rare flora occurred within the survey area, a limited amount information was also collected on vegetation type. The main objectives of this review are to re‐assess the 2012 survey to ensure that; current species and communities (up‐to‐date Naturemap and EPBC searches are attached) are considered against existing data, and a desktop risk assessment for any newly listed species and communities is carried out. Table 1. Survey extent along Pinjarra Williams Road (NGH Environmental, 2012). Section Approximate Distance (m) Distance (m) SLK (nearest from edgeline from edgeline 100 m) (northern verge) (southern verge) 1 24.4 ‐ 26.4 9 9 2 26.4 ‐ 26.8 9 9 3 26.8 ‐ 27.6 0 9 4 27.6 ‐ 28.2 20 30 5 28.2 ‐ 28.4 20 9 6 28.4 ‐ 29.3 9 9 7 29.3 ‐ 30.3 9 9 8 30.3 ‐ 35.2 0 9 9 35.2 ‐ 40 9 9 1 Ekologica Pty Ltd. undertook the 2012 survey on behalf of NGH Environmental. Russell Smith of Ekologica Pty Ltd. who carried out the 2012 survey is now consulting as part of Ecoedge which produced this report. 2 Methods 2.1 Plant Taxa A list of vascular flora species occurring within the Project Area was drawn up using the field note book used during the 2012 NGH Environmental survey. This list, which only includes the taxa from the SLK 20.4 to 40.0 section of the 2012 survey, is presented as Appendix 1. The taxonomy and conservation status of the derived list was checked against the WA Herbarium Census of WA Plants Database (Department of Parks and Wildlife, 2016). The 2012 survey list was also checked against the conservation‐significant flora from recent downloads of data from the EPBC Act Protected Matters search tool and NatureMap (Appendix 2). Mapping of vegetation complexes by Havel and Mattiske (2000) and notes on vegetation within the Project Area derived from the field notebook used in the 2012 survey were reviewed to determine whether any poorly reserved vegetation complexes or threatened ecological communities (TECs) or priority ecological communities (PECs) occur within the Project Area. 3 Results 3.1 Flora No Declared Rare Flora, Priority flora or flora otherwise of conservation significance were identified within the list of vascular species from the SLK 24.4‐40.00 2012 survey by NGH Environmental. 3.2 Vegetation Types All the vegetation within the Project Area occurs on the Dwellingup (D1) or Yarragil 1 (Yg1) vegetation complexes (Havel and Mattiske, 2000). Both complexes are well reserved with substantially more than the 30% of the pre‐clearing extent of the vegetation type as recommended in the National Objectives Targets for Biodiversity Conservation. Additionally, there is a higher percentage remaining than the Environmental Protection Authority (2006) target of 15% of pre‐European extent for each ecological community to be protected in a comprehensive, adequate and representative reserve system (Table 2).. Table 2. Post European vegetation extent remaining and reserved for vegetation within the Swan Coastal Plain IBRA Bioregion and the Southwest Forest Region portion of the Jarrah Forest and Warren IBRA Bioregions (Shepherd 2007). Current % Remaining PreEuropean Current % Vegetation of Current RFA RFA name Vegetation Vegetation Vegetation in DEC Vegetation code (ha) (ha) Remaining Tenure in DEC (ha) Tenure D1 Dwellingup 208,272.78 186,731.51 89.66% 176,175.69 84.59% Yg1 Yarragil 1 80,061.69 67,068.19 83.77% 60,533.07 75.61% 4 Conclusions A review of the 2012 survey results and up‐to‐date data with regard to flora and vegetation types found that no Declared Rare Flora, Priority flora or other conservation significant flora or vegetation complexes or communities of conservation significance occur within the Project Area. 5 References Department of Parks and Wildlife (2016). The WA Herbarium Census of WA Plants Database (WACENSUS: ‘Max’ update 19/05/2016). Environmental Protection Authority (2006). Level of Assessment for Proposals affecting Natural Area within the System 6 Region and Swan Coastal Plain Portion of the System 1 Region. Guidance Statement No. 10, June 2006, Perth. Havel, J.J. and Mattiske, E.M. (2000). Vegetation mapping of south west forest region of Western Australia. Part 6, maps (MAP). Department of Conservation and Land Management, 7 maps. NGH Environmental (2012). Flora and Vegetation Survey, Pinjarra‐Williams Road (SLK 24.4– 65.5). Report to Main Roads W.A. Shepherd, D., (2007), 2. Mattiske_RFA vegetation extent.xls, from Department of Agriculture and Food Western Australia (DAFWA) current from July 2012. Appendix 1. List of Vascular flora identified within the Project Area FAMILY SPECIES NATURALISED Apiaceae Platysace compressa Xanthosia huegelii Asparagaceae Asparagus asparagoides * Lomandra hermaphrodita Lomandra nigricans Lomandra purpurea Thysanotus manglesianus Thysanotus multiflorus Asteraceae Dittrichia graveolens * Hypochaeris glabra * Lagenophora huegelii Senecio diaschides Sonchus asper * Trichocline spathulata Campanulaceae Lobelia rhombifolia Lobelia rhytidosperma Casuarinaceae Allocasuarina fraseriana Celastraceae Tripterococcus brunonis Colchicaceae Burchardia congesta Burchardia multiflora Cyperaceae Gahnia decomposita Lepidosperma leptostachyum Lepidosperma squamatum Lepidosperma tetraquetrum Tetraria sp. Jarrah Forest (R. Davis 7391) Dennstaedtiaceae Pteridium esculentum Dilleniaceae Hibbertia amplexicaulis Hibbertia quadricolor Hibbertia silvestris Droseraceae Drosera glanduligera Drosera platystigma Elaeocarpaceae Tremandra stelligera Ericaceae Leucopogon capitellatus Leucopogon conostephioides Leucopogon propinquus Leucopogon verticillatus Euphorbiaceae Monotaxis occidentalis Fabaceae Acacia alata Acacia baileyana * Acacia lateriticola Acacia mooreana Acacia pulchella FAMILY SPECIES NATURALISED Fabaceae Bossiaea aquifolium Bossiaea eriocarpa Bossiaea linophylla Bossiaea ornata Chorizema cordatum Daviesia decurrens Daviesia physodes Daviesia preissii Gastrolobium ebracteolatum Gompholobium marginatum Gompholobium ovatum Gompholobium preissii Gompholobium tomentosum Hovea chorizemifolia Kennedia carinata Kennedia coccinea Kennedia prostrata Sphaerolobium medium Gentianaceae Centaurium tenuiflorum * Dampiera linearis Lechenaultia biloba Scaevola calliptera Haemodoraceae Anigozanthos manglesii Hemerocallidaceae Agrostocrinum hirsutum Caesia micrantha Tricoryne elatior Iridaceae Ixia maculata * Romulea rosea * Watsonia meriana * Loganiaceae Orianthera serpyllifolia subsp. serpyllifolia2 Malvaceae Thomasia grandiflora Thomasia macrocarpa Astartea scoparia Calothamnus sanguineus Calytrix leschenaultii Corymbia calophylla Eucalyptus marginata Eucalyptus rudis