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Biodiversity Assessment - Nsw North Coast

Riparian Zones

Table: Riparian Zones: their average condition, trend and threatening processes for each subregion.

Reliability assessment	Condition	Trend	Threatening processes	Threatening processes notes
Clarence Basin (NNC11)
Anecdotal	Fair (Recovery requires significant intervention)	Declining	Broad scale vegetation clearing	Agricultural clearing
			Changed fire regimes	Frequent severe fires
			Changed hydrology - other	Over extraction of stream flow from catchment areas
			Exotic weeds	Madiera vine, Ballooon Vine, Cats Claw creeper, Lantana
			Grazing pressure	Uncontrolled access of stock with resultant negative impacts upon bank stability and remnant native vegetation
			Increasing fragmentation and loss of remnants	No data
			Other - describe	Unsustainable logging resulting in loss of diversity and reduction of biomass and contributing to reduced water flow availability. Urban development
			Pollution	Pollution from agriculture - esp sugarcane farming
Manning - Macleay (NNC2)
Anecdotal	Fair (Recovery requires significant intervention)	Declining	Broad scale vegetation clearing	Agricultural clearing, plantation establishment
			Changed fire regimes	Frequent severe fires
			Changed hydrology - other	Over extraction of stream flow from catchment areas and aquifiers, altered hydrological regimes as a result of conversion of oldgrowth to regrowth
			Exotic weeds	Camphor laurel, Lantana, Privet, willow, blackberry, honeysuckle, Broome
			Feral animals	Feral horses
			Grazing pressure	Uncontrolled access of stock with resultant negative impacts upon bank stability and remnant native vegetation
			Increasing fragmentation and loss of remnants	No data
			Other - describe	Gravel extraction from rivers Mining Unsustainable logging resulting in loss of diversity and reduction of biomass and contributing to reduced water flow availability. Urban development
			Pollution	Pollution from agriculture and plantations - sugarcane, banana, macadamia, eucalypt plantations etc
Murwillumbah (NNC13)
Anecdotal	Degraded (Recovery unlikely in medium term)	Rapidly declining	Broad scale vegetation clearing	No data
			Changed hydrology - other	No data
			Exotic weeds	"Madiera vine, Ballooon Vine, Cats Claw creeper, Camphor Laurel, Lantana"
			Increasing fragmentation and loss of remnants	No data
			Other - describe	Urban development
			Pollution	"Pollution from agriculture and plantations - sugarcane, macadamia, eucalypt plantations etc"
Nymboida (NNC1)
Anecdotal	Good (Recovery requires little intervention)	Declining	Broad scale vegetation clearing	No data
			Changed fire regimes	Frequent severe fires
			Changed hydrology - other	Over extraction of stream flow from catchment areas, altered hydrological regimes as a result of conversion of oldgrowth to regrowth
			Exotic weeds	"Lantana, Croftons Weed"
			Grazing pressure	Uncontrolled access of stock with resultant negative impacts upon bank stability and remnant native vegetation
			Other - describe	Unsustainable logging resulting in loss of diversity and reduction of biomass and contributing to reduced water flow availability.
Richmond - Tweed (NNC12)
Anecdotal	Degraded (Recovery unlikely in medium term)	Rapidly declining	Broad scale vegetation clearing	No data
			Changed hydrology - other	No data
			Exotic weeds	"Madiera vine, Ballooon Vine, Cats Claw creeper, Camphor Laurel, Lantana"
			Increasing fragmentation and loss of remnants	No data
			Other - describe	Urban development
			Pollution	"Pollution from agriculture and plantations - sugarcane, macadamia, eucalypt plantations etc"
Scenic Rim (NNC15)
Quantitative and qualitative	Degraded (Recovery unlikely in medium term)	Static	Exotic weeds	No data
			Feral animals	No data
			Grazing pressure	No data
			Increasing fragmentation and loss of remnants	No data
Southern Coastal Lowlands (NNC14)
Anecdotal	Degraded (Recovery unlikely in medium term)	Rapidly declining	Broad scale vegetation clearing	No data
			Changed hydrology - other	No data
			Exotic weeds	"Madiera vine, Ballooon Vine, Cats Claw creeper, Camphor Laurel, Lantana"
			Increasing fragmentation and loss of remnants	No data
			Other - describe	Urban development
			Pollution	"Pollution from agriculture and plantations - sugarcane, macadamia, eucalypt plantations etc"
Woodenbong (NNC10)
Anecdotal	Fair (Recovery requires significant intervention)	Rapidly declining	Broad scale vegetation clearing	No data
			Changed hydrology - other	Over extraction of stream flow from catchment areas
			Exotic weeds	No data
			Grazing pressure	Uncontrolled access of stock with resultant negative impacts upon bank stability and remnant native vegetation
			Other - describe	Unsustainable logging resulting in loss of diversity and reduction of biomass and contributing to reduced water flow availability.