Biodiversity Assessment Report Contract Area 43: Pound Road ...

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Biodiversity Assessment Report: Investigation Area 43 Non-target amphibians, reptiles, birds and mammals were subject to incidental survey during targeted searches undertaken with a particular emphasis placed on threatened species using the following methods: • Birds, including wetland birds were identified by sight and vocalisation during daytime and spotlight walks. Woodland birds were surveyed between dawn and midday and two hours preceding nightfall. • Reptiles were identified by sight, during log and rubbish turning and during general inspection of habitat. Where possible, reptiles were captured by hand to assist identification. All reptiles were returned to the point of capture after identification. • Reptiles and small mammals were also surveyed using the Glossy Grass Skink methods detailed in section 2.3.5 below. • Mammals were identified by vocalisation, sight and by identifying diggings, scats and footprints. • Amphibians were identified by vocalisation and sight, including spotlighting and fish trapping (tadpoles were detected using small fish traps and dip netting) within a selection of appropriate amphibian habitat during spotlighting surveys. A fauna species list for the entire contract area was compiled. This included species recorded in the contract area and those flying over or heard close to the contract area. Targeted Fauna Survey Targeted searches were commissioned by GAA for four fauna species listed as threatened under State and Federal legislation or as threatened by DSE (DSE 2007a) (Table 1). Targeted searches for any other threatened species were not commissioned by GAA. Please note this biodiversity assessment does not include targeted surveys of Growling Grass Frog and Southern Brown Bandicoot as surveys for those species were undertaken during the Sub Regional Surveys required under the Strategic Assessment. Table 1. Threatened Species Targeted for Fauna Survey FFG EPBC DSE (2007a) Common name Scientific name L VU v Dwarf Galaxias Galaxiella pusilla n Glossy Grass Skink Pseudemoia rawlinsoni v Southern Toadlet Pseudophryne semimarmorata L v Swamp Skink Egernia coventryi Dwarf Galaxias 17
Biodiversity Assessment Report: Investigation Area 43 Dwarf Galaxias Galaxiella pusilla were targeted using rectangular bait traps baited with White Bait and glow sticks placed in appropriate habitat, near reeds and sedges. Lights traps were deployed in all potential habitats. Traps were left overnight and checked the following morning. Dip-nets were also used near the banks of waterways in and around reeds and sedges in random searches at each survey location. Trap locations are displayed in Figure 3. Glossy Grass Skink Glossy Grass Skink Pseudemoia rawlinsoni was surveyed by using 30cm by 30cm pieces of colour-bond tin placed at 10-20 metre intervals within suitable habitat. Habitat included drainage lines, along Cardinia Creek, around wetlands and dams throughout the contract area. The tin sheets were lifted during the morning prior to 11am and reptiles sheltering under the tin for warmth were caught or observed. Three hundred tin pieces were deployed within the contract area and were checked four times each. Surveys were undertaken in all weather throughout the survey period. Tin locations are displayed in Figure 3. Southern Toadlet Areas of potential Southern Toadlet Pseudophryne semimarmorata habitat within the contract area, including roadsides and drainage lines were identified. Many of these sites have been traversed on foot to identify Southern Toadlet calls during wet weather. Southern Toadlet is a late summer to autumn calling species; therefore the Southern Toadlet survey was still in progress at the time of this draft report submission. However, Southern Toadlet survey results to date are included within this draft report and final results will be published with the final report. Areas of potential habitat that have been traversed are displayed in Figure 3. Swamp Skink Swamp Skink Egernia coventryi was surveyed by using 30cm by 30cm pieces of corrugated tin placed at 10-20 metre intervals within suitable habitat. Habitat included drainage lines and around wetlands and dams throughout the precinct. The tin pieces were lifted during the morning prior to 11am and reptiles sheltering under the tin for warmth were caught or observed. Three hundred tin pieces were deployed and most were checked a total of four times each. Surveys were undertaken in all weather throughout the survey period. Swamp Skinks were also surveyed using Elliot traps. Traps were baited with a mixture of peanut butter, oats, molasses and sardines and were placed in potential habitat throughout the contract area. A total of 120 Elliot traps were deployed for four nights, traps were checked each morning. Tin and trap locations are displayed in Figure 3. 18
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ISBN 978-1-921747-54-0 (printed) IS
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