Ecological Health Recommendations Work Plan

Species Requirements (habitat/food) Threats Link to swimming in the river   Recommendations Actions Measure
Powerful Owl
  • Habitat – forest and woodland, dense riparian vegetation, tree hollows
  • Food – possums, gliders, flying fox
Susceptible to loss of habitat in particular loss of large hollow bearing trees. The Powerful Owl’s native vegetation habitat stabilises creek banks and acts as a filter that limits erosion and cleanses the water. This reduces the amount of sediment and pollutants, including litter, nutrients, oils, fertilisers and heavy metals, entering the waterways. Maintain and enhance dense vegetation,
including large canopy trees.
Maintain presence of hollow bearing trees,
and encourage man-made hollows for the
owls to roost.
Benefits of dense vegetation:
Habitats for Ring-tailed Possums, the
main food source of the Powerful Owl.
Stops erosion of the river bank
Filters sediment and pollutants from
entering the water
Creates shade and pleasant
recreational areas for people
Map the presence of Hollow bearing trees in the catcment.   Encourage  strategic installation of man made hollows. Work with Councils to provide dense vegetation habitat.         Establish & promote Citizen Science app for iconic species. Hollow bearing trees mapped. Citizen Science  sightings of species.
Southern Myotis Habitat – tree Hollows,
slow flowing water, dense
riparian vegetation,
Food – aquatic
macroinvertebrates
Susceptible to loss of
habitat in particular loss of
large hollow bearing trees
and loss of
macroinvertebrate food
resources due to altered
water quality and flows
Microbats live in the
riparian native
vegetation which
stabilise creek banks and
acts as a filter that limits
erosion and cleanses the
water.
Macroinvertebrates, that
microbats rely on as a
food source, are highly
sensitive to poor water
quality.
Maintain and enhance dense vegetation, such
as walls of canopy trees to create habitats for
the Southern Myotis.
Encourage installation of man-made bat flats
as homes for the microbats.         Benefits of dense vegetation:
Stops erosion of the river bank and
reduces turbidity in the river,
providing improved water clarity for a
more pleasant swimming experience
Filters sediment, nutrients and other
pollutants from entering the water,
thereby improving water quality for
swimming
Creates shade and pleasant
recreational areas for people
Reduces weed cover and maintenance
of vegetation
Provides habitat for many other
desirable animals, including the
Powerful Owl
Map ripparian vegetation.   Work with councils to identify areas to provide dense riparain vegetation.                          Establish & promote Citizen Science app for iconic species Citizen Science  sightings of species.
Striped Marsh Frog Habitat – wetlands,
floodplains,
flooded grassland,
woodlands,
slow moving creeks, pools
and ponds
Food – will eat anything
smaller than it.
Susceptible to degraded
water quality, herbicides
and pesticides
Frogs are freshwater bio- indicators – animals and
plants that can be used
to determine the health
of freshwater habitats.
They are very sensitive
to water pollution which
means that changes in
the abundance and
diversity of frogs can be
used as a measuring tool
to determine water
quality.
Construction of offline wetlands to treat low
flow stormwater, with deep pools for habitat.
High flows will be bypassed to balance water
quality improvements with the community’s
desire for healthy and productive wetlands
that support wildlife including striped marsh
frogs and long necked turtles.
Benefits of constructed wetlands:
Removes pollutants from stormwater
runoff, thereby improving river quality
for swimming (e.g. reduces nutrients,
sediment and rubbish entering the
river)
Reduces flow velocity into the river,
thus increasing the biological health of
the river
Creates pleasant environments for
many passive recreational pursuits
Map current wetlands.        Identify areas suitable for new offline wetlands.   Build capacity of community and councils to understand, build and maintain wetlands.     Establish & promote Citizen Science app for iconic species. Number of wetlands in catchment. Key habitat areas mapped and refrenced in strategic plans and LEPs.  Citizen Science  sightings of species.
Eastern
Longnecked
Turtle
Habitat – rivers, lakes,
swamps and ponds,
including farm dams
Food – invertebrates such
as worms, snails and
insect larvae
Susceptible to decline in
water quality, entanglement
in rubbish, loss of habitat
The vegetation of the
turtle’s habitat helps
stabilise banks and
protect from erosion. Its
invertebrate food
sources are also sensitive
to changes in water
quality.
Construction of offline wetlands to treat low
flow stormwater, with deep pools for habitat.
High flows will be bypassed to balance water
quality improvements with the community’s
desire for healthy and productive wetlands
that support wildlife including striped marsh
frogs and long necked turtles.
Benefits of constructed wetlands:
Removes pollutants from stormwater
runoff, thereby improving river quality
for swimming (e.g. reduces nutrients,
sediment and rubbish entering the
river)
Reduces flow velocity into the river,
thus increasing the biological health of
the river
Creates pleasant environments for
many passive recreational pursuits
Map current wetlands.        Identify areas suitable for new offline wetlands.   Build capacity of community and councils to understand, build and maintain wetlands.     Establish & promote Citizen Science app for iconic species. Citizen Science  sightings of species.
Bar-tailed Godwit Habitat – Intertidal
sandflats, banks,
mudflats, estuaries, inlets,
harbours, coastal lagoons
and bays. It is found often
around beds of seagrass
and, sometimes, in
nearby saltmarsh.
Food – molluscs, worms
and aquatic insects
Major threats to species
includes habitat loss such as
land clearing, reclamation
and drainage of intertidal
areas. Habitat degradation
due to weed invasion,
altered flows and water
pollution.
Bar-tailed Godwits also
need to be separated from
contact with humans, dogs,
cats and foxes. Interaction
scares off the Godwits and
prevents them from feeding
or breeding.
Mangroves and salt
marshes provide
breeding habitat for
wading birds. These
habitats improve water
quality by filtering
pollutants, stabilising
and improving the soil
and protecting
shorelines from erosion
and flooding.
Create oyster reefs as barriers to protect the
mudflats that the Godwit relies on.
Benefits of oyster reefs:
Provides a natural barrier between
the shorebirds and human
contact/recreational swimming areas,
dogs, cats and foxes etc.
Oyster reefs will buffer ferry wake,
which destroys the mudflat areas
where these shorebirds feed.
Oyster reefs provide essential habitat
structures for fish.
*Note: the Billion Oyster Project in New
York has been incredibly successful and
has driven mass community support. We
are scoping the roll out of this project in
the Parramatta River.
http://www.billionoysterproject.org/
Identify opportunities to create oyster reefs near mudflats.    Identify opportunities for signage and education materials to protect mudflats and Bar-tailed Godwits. Promote intertidal habitat creation.                           Establish & promote Citizen Science app for iconic species. Citizen Science  sightings of species.  Opportunities for oyster reefs identified.