Flora and vegetation of aviva lease area
Yüklə 1,38 Mb. Pdf görüntüsü
|
- Bu səhifədəki naviqasiya:
- Table 5: Summary of the direct impact of the proposals on Pre – European Extents of Vegetation Systems
- Held in Conservation Estate (%) CWC CPP
- Groundwater Dependent Communities
- APPENDIX A1: DEFINITION OF RARE AND PRIORITY FLORA SPECIES (Western Australian Herbarium 2009)
- APPENDIX A2: DEFINITION OF THREATENED FLORA SPECIES ( Environment Protection and Biodiversity Conservation Act 1999 [Commonwealth ])
- APPENDIX A3 : DEFINITION OF THREATENED ECOLOGICAL COMMUNITIES (Department of Environment and Conservation 2009b)
Vegetation Twenty four plant communities were recorded in the Aviva survey area, comprising five heath communities, eight Proteaceae and Myrtaceae-dominated communities, eight Eucalypt communities and two chenopod communities (Figures 1 and 2. Some communities such as T1 and T4 had higher species richness than other communities (Appendix E). This is due to a higher number of sampling points occurring in these communities due to their spatial extents (Table 4).
All of the defined communities are represented in either the Tathra or Eridoon vegetation systems (Beard 1979). Comparison of Pre – European vegetation extents of these vegetation systems with the direct impact of the projects and formal conservation reserves shows that the impact on the Eridoon vegetation system will be greater than the Tathra system (Table 5). This is expected as the extent of the Tathra vegetation system is greater (Table 5). Although Pre – European extents may not give an accurate indication of the complete impact of the Projects, it will accurately describe what percentage is currently in Conservation Estate and provides a conservative estimate of the impact of the proposals. Apart from the greater impact on the Eridoon systems, the amount that is in Conservation Estate is much greater than what will be affected. However, these figures should be compared with already approved projects to assess the impact at a regional level.
Summary of the direct impact of the proposals on Pre – European Extents of Vegetation Systems Vegetation system Total Pre - European extents (ha) Pre – European (% impacted) Held in Conservation Estate (%) CWC CPP TATHRA
396178 0.222
0.046 3.49
ERIDOON 91283
0.896 0.328
14.94
The community type T1 is considered to be regionally significant as it contains two rare taxa, Tetratheca nephelioides and Eucalyptus crispata. Community types E1, E2, E4, E6, H1, H2, H3, H5, and T2 are considered to be locally significant as they contain Priority Flora (Environmental Protection Authority 2004), while communities E5 and S1 are locally significant as the proposals clear a significant amount of their known local area. The level of community reservation can be inferred from the regional vegetation system data.
20.
URS0808/195/08
M ATTISKE C ONSULTING P TY
L TD
The H1 heath community included pockets of lateritic rises, and therefore has some species in common with the only known Threatened Ecological Community in the Eneabba area, the Ferricrete Floristic Community - Rocky Springs type. Community 72 Ferricrete Floristic Community is listed as Vulnerable by the Department of Environment and Conservation (2006). This Threatened Ecological Community is not currently listed under the Commonwealth EPBC Act (1999). On the basis of database search and a comparison with regional datasets (Department of Environment and Conservation 2009a), the majority of the flora recorded on the Rocky Springs Ferricrete communities are represented either on the northern Swan Coastal Plain or in the adjacent regions. Twenty-nine of the sixty taxa recorded within the local TEC Ferricrete Community (Hamilton-Brown et al. 2004) were recorded within the survey area. The majority of these species occur more widely, and therefore the significance of the latter is difficult to assess in view of the lack of regional studies on the Rocky Springs TEC. The project as proposed does not impact directly on the Rocky Springs TEC.
As indicated earlier in this report there appears to be debate over the extent and definition of the Rocky springs ferricrete TEC. The latter results from a lack of regional assessments and a clear understanding of the relationships between ferricrete layers and floristic data. The local findings indicate that the exposed ferricrete is not at the location as specified through the Department of Environment and Conservation (2006) database and that the ferricrete layer extends under large sections of the systems within the coastal plains. Therefore the whole question about the significance of the TEC remains open to debate until the TEC is better defined in composition and spatial extent. Meanwhile the data as collated on the flora and plant/soil relationships indicate that there are no species within the TEC that are restricted to the TEC and therefore the risk of any indirect impacts remains low. This low risk is further substantiated by the dominance of flora species in the range of communities within the Aviva project area that are reliant on rainfall rather than groundwater.
In reviewing the lifeforms of the other plants within the communities on the Aviva project area, it is apparent that the majority of plants are dependent on soil moisture from rainfall events and that the majority of the plant species are herbs or small shrubs that will have shorter root systems. This relationship can then be expanded to their dominance within the respective plant communities. The heath and scrub (H2 and T1) communities that dominate the communities on the project area are largely dominated by shallow rooted species or shrubs that are primarily reliant on the soil moisture levels being maintained from rainfall events. These heath and scrub communities also dominate the south- eastern corner of the Lake Indoon Nature Reserve which may be impacted through the temporary lowering of groundwater levels. The Eucalyptus camaldulensis var. obtusa woodlands around Lake Indoon have already been subjected to various periods of drought and despite some stress in the trees have survived these periods.
A number of issues will require consideration if one or both projects are to go ahead. These include, but are not limited to the following; •
Risks posed to Tetratheca nephelioides as a species by the current infrastructure route associated with the Coolimba Power Station Project. •
•
Risks posed to other Priority Flora, particularly Calytrix purpurea (P2), Acacia flabellifolia (P3), and Calytrix eneabbensis (P4) in the Central West Coal Project as these taxa are locally uncommon or range extensions. •
Dieback on surrounding vegetation, particularly Priority and Rare Flora. •
Potential indirect impacts from groundwater changes during the mining operations. 21.
URS0808/195/08
M ATTISKE C ONSULTING P TY
L TD
7. LIST OF PARTICIPANTS The following personnel of Mattiske Consulting Pty Ltd have been involved with this project:
Principal Ecologist: Dr E. M. Mattiske
Experienced Botanists: Dr C. Hancock Mrs L. Cobb Mrs. B. Koch
Botanists: Mr D. Rathbone Ms B. Taylor Mr A. Ruschmann Mr. D. Marsh Mr. M. Boardman Ms S. Robinson Ms F. de Wit Ms. M. Van Wees Mr. R. Burrows Mr. A. Robinson Ms S. Thomson Ms F. Smith Mr S. Reiffer 8. REFERENCES Agriculture and Related Resources Protection Act 1976 [WA]
Beard, J.S. (1979) The vegetation of Dongara, Western Australia. Map and explanatory memoir. 1:250 000 series. Vegmap Publications. Perth
Beard, J.S. (1980) A New Phytogeographic Map of Western Australia. Western Australian Herbarium Notes Number 3: 37-58.
Beard, J.S. (1981) Vegetation Survey of Western Australia. Swan. Map and Explanatory Notes, Sheet 7, 1:1,000,000 Series, University of Western Australia Press, Perth.
Beard, J.S. (1990) Plant Life of Western Australia. Kangaroo Press Pty Ltd, Kenthurst, N.S.W. Blackall, William E. Grieve, Brian J. (1982). How to know Western Australian wildflowers : a key to the flora of the extratropical regions of Western Australia. Part 4. University of Western Australia Press. Nedlands, W.A. Brown A. Thomson-Dans C., Marchant N. eds (1998) Western Australia’s Threatened Flora Department of Conservation and Land Management, Como, Western Australia
Butcher R. (2007) New taxa of ‘leafless’ Tetratheca (Elaeocarpaceae, formerly Tremandraceae) from Western Australia. Australian Systematic Botany. 20(2) 139–160. 22.
URS0808/195/08
M ATTISKE C ONSULTING P TY
L TD
Commonwealth Bureau of Meteorology (2008) Climate statistics for Australian locations, Eneabba. Accessed from: ://www.bom.gov.au/climate/averages/tables/cw_008225.shtml accessed on : 24 th January 2008
Crisp, M.D. (1982) Daviesia spiralis and D. debilior (Leguminosae: Papilionoideae), two new species occurring in
Department of Agriculture and Food (2008) Declared Plants List.
http://agspsrv95.agric.wa.gov.au/dps/version02/01_plantsearch.asp
Department of Environment and Conservation (2006) List of Threatened Ecological Communities on the Department of Environment and Conservation’s Threatened Ecological Community (TEC) Database endorsed by the Minister for the Environment http://www.dec.wa.gov.au/component/option,com_docman/Itemid,1/gid,2800/task,doc_downl oad/
Department of Environment and Conservation (2009a) Max Version 2.1.1.129. Department of Environment and Conservation.
Department of Environment and Conservation (2009b) Definitions, Categories and Criteria for Threatened and Priority Ecological Communities ://www.dec.wa.gov.au/component/option,com_docman/Itemid,/gid,402/task,doc_download/
Priority Ecological Communities Listing . Listing supplied by Department of Environment and Conservation, August 2008.
Department of the Environment, Water, Heritage and the Arts (2004) Interim Biogeographic Regionalisation of Australia (IBRA) v 6.1 Canberra ACT
Department of the Environment, Water, Heritage and the Arts (2008) Approved Conservation Advice for Eucalyptus johnsoniana (Johnson’s Mallee). Accessed from ://www.environment.gov.au/biodiversity/threatened/species/pubs/14516-conservation- advice.pdf on 18 February 2009 at 15:26 WDST
Department of the Environment, Water, Heritage and the Arts (2009a) EPBC Act List of Threatened Flora http://www.deh.gov.au/cgi-bin/sprat/public/publicthreatenedlist.pl?wanted=flora
Department of the Environment, Water, Heritage and the Arts (2009b) EPBC Act List of Threatened Ecological Communities. ://www.deh.gov.au/cgi-bin/sprat/public/publiclookupcommunities.pl
Die Pflanzenwelt von Western-Australien sudlich des Wendekreises. Vegn. Erde 7, Leipzig. Environment Protection and Biodiversity Conservation Act 1999 [Commonwealth]
Environmental Protection Authority (2004) Guidance for the Assessment of Environmental Factors (in accordance with the Environmental Protection Act 1986) – Terrestrial Flora and Vegetation Surveys for Environmental Impact Assessment in Western Australia. No. 51. June 2004.
23.
URS0808/195/08
M ATTISKE C ONSULTING P TY
L TD
Gardner, C.A. (1942) The vegetation of Western Australia with special reference to climate and soils. J. Proc. R. Soc. West. Aust. 28:11-87. Gentilli J. (1972)
Government of Western Australia (2000) Bush Forever Volume 2. Directory of Bush Forever Sites. Department of Environmental Protection, Perth.
Hamilton-Brown, S., Broun, G., and Rees, R (2004) Interim Recovery Plant 154. Ferricrete floristic community (Rocky springs type). Interim Recovery Plan 2004-2009. Prepared by Department of Conservation and Land Management. Hnatuik R.J. (1993) A revision of the genus Eremaea (Myrtaceae). Nuytsia. 9:2. Department of Conservation and Land Management, Como, Western Australia
Keighery, B.J. (1994) Bushland Plant Survey. A Guide to Plant Community Survey for the Community. Wildflower Society of WA (Inc.), Western Australia. Mattiske Consulting Pty Ltd (2006) Flora and Vegetation Assessment of the Aviva Lease Area. Unpublished Report prepared for URS Australia Pty Ltd for Aviva Pty Ltd. Mattiske Consulting Pty Ltd (2009) Flora and Vegetation Values of Lake Logue Reserve. Unpublished Report in Preparation for Aviva Pty Ltd. Murray B.R., Zeppel M.J.B, Hose G.C., and Eamus, D. (2003) Groundwater-dependent ecosystems in Australia: It's more than just water for rivers. Ecological Management & Restoration. 4 ( 2), Pages 110 - 113
Paczkowska, G and Chapman, A.R. (2000) The Western Australian Flora A Descriptive Catalogue. Published by Wildflower Society of Western Australia (Inc.), Western Australian Herbarium (CALM) and Botanic Gardens and Parks Authority.
Patrick, S. and Brown, A. (2001) Declared Rare and Poorly Known Flora in the Moora District. Department of Conservation and Land Management, Western Australia. Stack G. and Broun. (2004) Eneabba Mallee (Eucalyptus impensa) Interim Recovery Plan 2004-2009. Department of Conservation and Land Management, WA, 2004. Accessed from ://www.environment.gov.au/biodiversity/threatened/publications/recovery/e-impensa/pubs/e- impensa.pdf on 18 Feb 2009
Thackway, R. and Cresswell, I.D. (1995) An Interim Biogeographic Regionalisation for Australia: a framework for setting priorities in the national reserves system cooperative program. Australian Nature Conservation Agency Canberra. Western Australian Herbarium (2009). FloraBase — The Western Australian Flora. Department of Environment and Conservation. ://florabase.dec.wa.gov.au/
24.
URS0808/195/08
M ATTISKE C ONSULTING P TY
L TD
Woodman Environmental Consulting Pty Ltd (2001) Flora and Vegetation Mapping – IPL South Vegetation Mapping. Unpublished report prepared for Iluka Resources Ltd – Iluka 00-16 A1. APPENDIX A1: DEFINITION OF RARE AND PRIORITY FLORA SPECIES (Western Australian Herbarium 2009)
Conservation Code
“Taxa which have been adequately searched for and are deemed to be in the wild either rare, in danger of extinction, or otherwise in need of special protection and have been gazetted as such.”
“Taxa which are known from one or a few (generally <5) populations which are under threat, either due to small population size, or being on lands under immediate threat. Such taxa are under consideration for declaration as ‘rare flora’, but are in urgent need of further survey.”
“Taxa which are known from one or a few (generally <5) populations, at least some of which are not believed to be under immediate threat (i.e. not currently endangered). Such taxa are under consideration for declaration as ‘rare flora’, but urgently need further survey.”
“Taxa which are known from several populations, and the taxa are not believed to be under immediate threat (i.e. not currently endangered), either due to the number of known populations (generally >5), or known populations being large, and either widespread or protected. Such taxa are under consideration for declaration as ‘rare flora’ but need further survey.”
“Taxa which are considered to have been adequately surveyed and which, whilst being rare (in Australia), are not currently threatened by any identifiable factors. These taxa require monitoring every 5-10 years.”
A2. APPENDIX A2: DEFINITION OF THREATENED FLORA SPECIES (Environment Protection and Biodiversity Conservation Act 1999 [Commonwealth])
Taxa which at a particular time if, at that time, there is no reasonable doubt that the last member of the species has died.
Taxa which is known only to survive in cultivation, in captivity or as a naturalised population well outside its past range; or it has not been recorded in its known and/or expected habitat, at appropriate seasons, anywhere in its past range, despite exhaustive surveys over a time frame appropriate to its life cycle and form.
Critically Endangered
Taxa which at a particular time if, at that time, it is facing an extremely high risk of extinction in the wild in the immediate future, as determined in accordance with the prescribed criteria.
Taxa which is not critically endangered and it is facing a very high risk of extinction in the wild in the immediate or near future, as determined in accordance with the prescribed criteria.
Taxa which is not critically endangered or endangered and is facing a high risk of extinction in the wild in the medium-term future, as determined in accordance with the prescribed criteria.
Taxa which at a particular time if, at that time, the species is the focus of a specific conservation program, the cessation of which would result in the species becoming vulnerable, endangered or critically endangered within a period of 5 years.
A3. APPENDIX A3 : DEFINITION OF THREATENED ECOLOGICAL COMMUNITIES (Department of Environment and Conservation 2009b)
An ecological community will be listed as Presumed Totally Destroyed if there are no recent records of the community being extant and either of the following applies: (i)
records within the last 50 years have not been confirmed despite thorough searches or known likely habitats or; (ii)
all occurrences recorded within the last 50 years have since been destroyed.
Kataloq: sites -> default -> files -> PER documentation PER documentation -> Oakajee port and rail opr rail development vegetation and flora assessment PER documentation -> Opr rail Development Public Environmental Review PER documentation -> Enclosure 1 2007 Seismic Survey Vegetation PER documentation -> Vegetation and Flora Survey Report PER documentation -> Midwest corporation limited PER documentation -> Tronox management pt y ltd PER documentation -> Flora and vegetation of barrambie survey area, bore fields and water pipeline corridor Yüklə 1,38 Mb. Dostları ilə paylaş:
|