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Dragonfly Environmental VIVA Energy Green and Golden Bell Frog Restoration - Dragonfly Environmental


Client name:
 Viva Energy 

Duration: 2019 – 2020

Location: Clyde Hub Terminal

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Habitat Restoration for the Golden Green Bell Frogs

We are currently working out at Viva Energy’s Clyde terminal, restoring and rehabilitating habitats for the Green and Golden Bell Frogs.

Our plan is to develop a secure core habitat that is reasonably self sustaining: and to create and maintain a habitat that meets the known ecological requirements of the entire life cycle of the Green and Golden Bell Frog (GGBF).

The Green and Golden Bell frog (Litoria aurea) has gone from being one of the most commonly found frogs on the east coast, to one of the most threatened, with the risk of extinction. Living in large, open-water swamps or ponds that have a variable water level and dense vegetation. Unfortunately with habitat isolation and degradation the population of the GGBFs have been threatened.

A large, plump amphibian ranging from approximately 4.5 to 10 cm in length. The colour of the frog varies, but is commonly a pea-green with brassy brown or golden splotches.

Living in large, open-water swamps or ponds that have a variable water level and dense vegetation and grassy and rocky areas around them, their preferred habitats that they use for breeding, foraging, shelter and hibernation include waterbodies that:

  • are unshaded and free of predatory fish
  • have grassy areas and shelters nearby.
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Dragonfly Environmental team have been carefully clearing and disposing of vegetation to avoid harming any GGBF that may be present, rebuilding the habitats that include the removal of She-Oak Trees that are shading Green and Golden Bell Frog Habitat, the control of large areas of Spiny Rush and the planting of appropriate macrophyte species to enhance the natural habitat qualities for GGBF. 

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Reducing biomass in preparation for planting aquatic vegetation in each pond along the margins and along the banks to provide protection from predators.
  • Weed control works start from the banks of waterbodies, working outward towards dry land, replacing the weeds removed with native plants.
  • Control of Gambusia (Mosquito Fish).
  • Remove all Swamp Oak individuals that occur within or fringing ponds and pools, including along the raised bund that intersects the central pools.
  • All Juncus acutus are to be progressively removed from the Wetlands. The native Typha orientalis is to be culled from the centre of pools and ponds, with some T. orientalis retained around the banks of all waterbodies.
  • Target small populations of unwanted emergent and aquatic vegetation for removal first, followed by removal of the larger infestations. 
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Extensive primary treatment on weeds such as Lantana Camara, Casurina Sp and Acacia Salinga have been cleared around the ponds, opening up the area to allow 40% of the perennial wetland area with direct sunlight. Warming up the temperature of the water, creating more productivity for the aquatic vegetation.

Rebuilding and bringing back the natural habitats for the Green and Golden Bell Frogs, is always a profound project to work on, our project aims to create a breeding haven, free from lingering predators and degraded habitat.  Our efforts into restoring the land and restoring the natural habitats will result in unhindered breeding and promote increased activity.
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