Targeted Significant Flora Surveys

About Targeted Significant Flora Surveys

The Western Australian Environmental Protection Authority (EPA) is the custodian of a number of guidelines which specify how environmental assessments should be carried out.

Surveys should be in accordance with these guidelines, in order to be accepted as adequately thorough and having met the standards and expectations of the environmental regulator and other decision making authorities.

One of the Technical Guidance documents is Flora and Vegetation Surveys for Environmental Impact Assessment (EPA 2016). This guideline dictates how flora surveys should be carried out. Vegetation surveys are also addressed in the guideline. It is the expectation of the EPA that detailed flora and vegetation assessments conducted to inform the environmental impact assessment process dedicate a proportion of the survey time to targeted searches for conservation significant (Threatened and Priority) flora in a selection of habitats.

Without proper and adequate survey, including targeted flora surveys, proposals may not be approved, or surveys may be required to be repeated or supplemented, which can result in added costs and project delays.

Focused Vision 2024 Lp Visuals Stills 8 4 (1) Min

How are Targeted Significant Flora Surveys Carried Out?

Targeted flora surveys conducted in the field will be informed by a desktop assessment, completed before mobilising to the field. The desktop assessment will identify significant flora that may occur and enable a target list to be prepared. Field guides, providing photographs and other information about the species, such as physical descriptions and notes on habitat preferences are also prepared to be taken into the field, to assist field botanists in identifying target species in the field.

Once in the field, there are a number of methods and levels of detail that can be used to undertake targeted flora surveys.  The method selected will depend on a number of things, including:

Group 368

The nature of the project (e.g. developments with proposed clearing may require thorough and exhaustive surveys, whereas flora monitoring may be less intensive)

Group 366 (1)

The stage of the project (if early in the planning process, significant effort towards targeted surveys may not be required, since design and therefore footprints may change).

Group 367 (1)

The likelihood of significant flora occurring (where significant species are known to occur and a population census is required, thorough and exhaustive effort may be required)

Magnifying2

The visibility of vegetation and target species (searching for large shrubs on the open spinifex plains of the Pilbara would require less intensive searching than searching for a small sedge in dense wetlands on the Swan Coastal Plain)

The targeted search method should be tailored according to the above and may also take guidance from other documents such as Survey Guidelines for Australia’s Threatened Orchids.

Consultation with regulatory authorities and decision making authorities prior to conducting the surveys may assist in confirming that a suitable approach is taken.

The FVC team has well-refined methods for field surveys for significant flora.  Searches are conducted systematically, and the search traverses are recorded using GPS.  These track files can (and are typically required to) be presented in reports, with shapefiles able to be submitted to regulators, which clearly demonstrates survey effort and extent.  Field navigation and tracking of search traverses utilises specialist GIS software on GPS-enabled tablet devices. Field data is also recorded directly into the spatial software.

Where observed, the location of each potentially significant taxon is recorded, and the local abundance, landform and associated flora species noted.  Data collected is sufficient to allow the completion of necessary report forms.

Where field identification with absolute certainty is not possible in the field, a specimen is collected and/or photographs taken, to assist in taxonomic identification afterwards.  Specialist taxonomists are consulted for identifications, where required, and all collections are made under appropriate permits.

Targeted Flora Survey Capabilities

FVC are specialists in targeted significant flora surveys and flora monitoring, having completed dozens of such projects over many years.  The team particularly specialise in and are known for targeted threatened orchid surveys across the south-west.

Targeted flora surveys are carried out by an experienced in-house team of FVC specialists, supplemented by sub-consultants where large teams are required to cover vast project areas.

Focused Vision 2024 Lp Visuals Stills 8 3 Min