Overview of Threats

Threat	Impact	Local	Remedy
Lack of flooding	Degradation of land and water quality	NO	Greater environmental flows for the Murray and Darling rivers
	Degradation of plant and animal species
Groundwater mounding from nearby irrigation and weir/dam pools	Salinisation of streams and lower landscapes	NO	Reduced irrigation pressures
	Death of trees and shrubs		Reduced nearby irrigation
	Loss of key aquatic and terrestrial habitats		Removal/better management of dams and weirs
Sedimentation onto floodplains and into streams and waterways	Soil deposition from wind and rainfall (local and regional)	YES	Stabilisation of erosion gullies
			Revegetation of adjoining dunes and ridges
	Floodplain soil disturbance from stock, rabbits, and pigs		Removal of stock, rabbits and pigs
Excess water nutrient levels from sedimentation, agricultural chemicals and animal droppings	Water quality reduction	YES	Removal of stock, rabbits and pigs from floodplains
	Dangerous algal outbreaks
	Death of native birds and animals		Removal of agricultural risks
Overgrazing and disturbance (trampling, digging)  by stock and pest animals	Loss of vegetation cover increasing erosion risks under flooding and rain, and exposure / degradation of cultural sites	YES	Removal of stock and pest animals
	Loss of important plant structures for flood mitigation and floodplain nutrient capture		Protective fencing for sensitive cultural sites
	Competition with native species Introduction of weeds		Reduction in total grazing pressure (including native species e.g. kangaroos)

 

 

 

 

 

 

 

 

Threat	Impact	Local	Remedy
Timber harvesting & removal of old aged trees	Loss of major groundwater pumps  and water respiration process	YES	No timber harvesting or removal
	Rising groundwater – soil & water salinisation
	Loss of larger hollows/habitats
	Seed loss for flooding regeneration
	Reduced erosion control capacity
Fire	Loss of species (plant and animal)	YES	Avoid fire risks
	Loss of regeneration capacity (based on lack of flooding events)		Extinguish fires quickly
	Nutrient contamination to waters
Public activities – firewood removal/use, vehicle damage	Firewood - Loss of dry and wet habitats, reduced species regeneration (notably invertebrates), loss of slow recycling nutrients	YES	No firewood removal or use
	Vehicle damage - track erosion, contamination (oils, fumes, noise)		Control vehicle types, movements and operation
Competition from pest plants	Pest plants – outcompete native plants, habitat and food source changes affecting native animal species survival	YES	Control introduced pest plants
Predation by foxes, pigs, and cats	Foxes/pigs – predation at ground level including native birds and animals, destruction of turtle and bird nests/eggs	YES	Control of foxes, pigs and cats
	Cats – predation from tree nests and hollows