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Number of threatened species (plants and animals) and vegetation communities adversely affected by weeds. Weeds displace and degrade threatened species and communities. Identifying areas that are presently weed free can allow these areas to receive priority for protection from weed incursions. It is more cost effective to eradicate newly established localised weed incursions than remove larger established infestations.
Six of the 20 weeds of national significance are present in Tasmania. These are: boneseed (Chrysanthemoides monilifera), blackberry (Rubus fruticosus species aggregate), gorse (Ulex europaeus), bridal creeper (Asparagus asparagoides), serrated tussock (Nassella trichotoma) and willows (Salix spp.). The following tables list the threatened species and communities threatened by these weeds. Threatened species are those listed on the State (Threatened Species Protection Act 1995) and/or Commonwealth (Environment Protection and Biodiversity Conservation Act 1999) threatened species legislation. Threatened communities are those that have either been identified as threatened by the RFA (1997) process or those communities identified as being bioregional priorities for conservation by CARSAG (Scientific advisory group for the comprehensive, adequate and representative forest reserve program). Threatened species directly threatened by weed infestation in Tasmania, 2001 Caption: The list only includes species threatened by the six Weeds of National Significance present in Tasmania Threatening weed species Threatened plant species State status boneseed Blue devil
(Eryngium ovinum) v boneseed Blue pincushion
(Brunonia australis) v boneseed Ribbed Thryptomene
(Thryptomene micrantha) r boneseed Risdon peppermint
(Eucalyptus risdonii) r boneseed Roundleaf mint bush
Prostanthera rotundifolia) r boneseed South Esk heath
(Epacris exserta) v boneseed South Esk pine
(Callitris oblonga
ssp.
oblonga) v boneseed Spur velleia
(Velleia paradoxa) v boneseed Superb greenhood
(Pterostylis grandiflora) r boneseed Swamp violet
(Viola caleyana) r boneseed Tailed spider orchid
(Caladenia caudata) r boneseed Winged Spyridium
(Spyridium vexilliferum) v blackberry Blue devil
(Eryngium ovinum) v blackberry Clubmoss bush pea
(Pultenaea selaginoides) v blackberry Davies’ wax flower
(Phebalium daviesii) e blackberry Hairy anchor plant
(Discaria pubescens) e blackberry Lime fern
(Pneumatopteris pennigera) v blackberry Midlands wattle
(Acacia axillaris) v blackberry Native wintercress
(Barbarea australis) e blackberry Scrambling gound fern
(Hypolepis distans) v blackberry South Esk pine
(Callitris oblonga
ssp.
oblonga) v gorse Apsley heath
(Epacris apsleyensis) e gorse Bitter Cryptandra
(Cryptandra amara) e gorse Clubmoss bush pea
(Pultenaea selaginoides) v gorse Bitter cryptandra
(Cryptandra amara) e gorse Hairy anchor plant
(Discaria pubescens) e gorse Midlands wattle
(Acacia axillaris) v gorse Prostrate bush pea
(Pultenaea prostrata) v gorse Rosemary Bertya
(Bertya rosmarinifolia) v gorse Small leaf Spyridium
(Spyridium lawrencei) r gorse South Esk heath
(Epacris exserta) r gorse South Esk pine
(Callitris oblonga
ssp.
oblonga) v gorse Spur velleia
(Velleia paradoxa) v gorse Thorn-bush
(Discaria pubescens) e gorse Tunbridge leek orchid
(Prasophyllum tunbridgense) e serrated tussock Common Eutaxia
(Eutaxia microphylla) r Serrated tussock Lemon beauty heads
(Calocephalus citreus) r Serrated tussock Milford leek orchid
(Prasophyllum milfordense) e Serrated tussock Morrisby's gum
(Eucalyptus morrisbyi) e willow Apsley heath
(Epacris apsleyensis) e willow Clasping leaf-heath
(Epacris acuminata) r willow Clubmoss bush-pea
(Pultenaea selaginoides) v willow Common hemp bush
(Gynatrix pulchella) r willow Cranbrook paperbark
(Melaleuca pustulata) r willow Curly sedge
(Carex tasmanica) willow Davies' wax flower
(Phebalium daviesii) e willow Drooping sedge
(Carex longebrachiata) r willow Fennel pondweed
(Potamogeton pectinatus) r willow Hairy anchor plant
(Discaria pubescens) e willow Hovea tasmanica willow Midlands Wattle
(Acacia axillaris) v willow Mountain sedge
(Carex gunniana) r willow Narrow leaf Pomaderris
(Pomaderris phylicifolia) r willow Native wintercress
(Barbarea australis) e willow Plain quillwort
(Isoetes drummondii) v willow River buttercup
(Ranunculus amphitricus) r willow Rosemary Bertya
(Bertya rosmarinifolia) r willow Sallow wattle
(Acacia mucronata
var.
dependens) r willow Sea clubrush
(Bolboschoenus caldwellii) r willow Small mudmat
(Glossostigma elatinoides) r willow Small-leaf Spyridium
(Spyridium lawrencei) v willow South Esk heath
(Epacris exserta) e willow South Esk pine
(Callitris oblonga) v willow Water woodruff
(Asperula subsimplex) r Status refers to threatened species (as listed on the Tasmanian Threatened Species Protection Act 1995 or the Commonwealth Environment Protection and Biodiversity Conservation Act 1999) where CE=critically endangered; e/EN=endangered; v/VU=vulnerable, r=rare and * denotes the species is yet to be classified. Source: DPIWE Tas Weed Management Strategy - Gorse, Tas Weed Management Strategy, willows, Tas Weed Management Strategy, blackberry, Tas Weed Management Strategy, Bridal creeper, Tas Weed Management Strategy, serrated tussock, Tas Weed Management Strategy, Boneseed - All in press Threatened or bioregionally important for conservation vegetation communities considered at risk by weed invasion, 2001 Weed species Threatened vegetation community Bioregion (IBRA 5) boneseed Shrubby swamp gum
(Eucalyptus ovata)
community Flinders boneseed Black peppermint
(Eucalyptus amygdalina)
on sandstone South-east boneseed White gum/blue gum
(Eucalyptus viminalis
/
Eucalyptus globulus)
coastal forest South-east boneseed Grassy blue gum
(Eucalyptus globulus) South-east blackberry South Esk pine
(Callitris oblonga)
forest South-east blackberry Rocka rivulet gum
(Eucalyptus brookeriana)
forest King Northern Slopes blackberry White gum
(Eucalyptus viminalis)
wet forest King Flinders Northern Slopes Ben Lomond Northern Midlands Central Highlands South-east Southern Ranges blackberry Swamp gum
(Eucalyptus ovata)
forest King Flinders Northern Slopes Ben Lomond Northern Midlands Central Highlands South-east Southern Ranges blackberry Paperbark
(Melaleuca ericifolia)
forest King gorse Swamp peppermint
(Eucalyptus rodwayi)
forest and woodland Northern Midlands gorse Cabbage gum
(Eucalyptus pauciflora)
forest and woodland on dolerite Northern Midlands gorse Shrubby swamp gum/white gum
(Eucalyptus ovata
/
Eucalyptus viminalis)
forest. This includes St Pauls Pine
(Callitris oblonga)
Forest Northern Midlands South-east gorse White gum
(Eucalyptus viminalis)
wet forest Northern Midlands gorse Blackwood
(Acacia melanoxylon)
forest on flats Ben Lomond Northern Midlands gorse Blackwood
(Acacia melanoxylon)
forest on rises Ben Lomond Northern Midlands gorse Cabbage gum
(Eucalyptus pauciflora)
forest Northern Midlands gorse Shrubby swamp gum/white gum
(Eucalyptus ovata
/
Eucalyptus viminalis)
forest Flinders Northern Slopes Ben Lomond Central Highlands Southern Ranges gorse Inland black peppermint
(Eucalyptus amygdalina)
forest and woodlands on gravels Northern Midlands South-east gorse Coastal white gum/blue gum
(Eucalyptus viminalis
/
Eucalyptus globulus)
forest Flinders Northern Slopes South-east gorse Swamp paperbark
(Melaleuca ericifolia)
forest and scrub King serrated tussock Lowland tussock
(Poa
spp.) grassland South-east serrated tussock Kangaroo grass
(Themeda triandra)
grassland South-east serrated tussock Wallaby grass
(Danthonia
/
Austrostipa)
grassland South-east serrated tussock Coastal white gum/blue gum
(Eucalyptus viminalis/Eucalyptus globulus)
forest South-east serrated tussock Grassy blue gum
(Eucalyptus globulus) South-east willow Swamp peppermint
(Eucalyptus rodwayi)
forest and woodland Northern Slopes Ben Lomond West Northern Midlands Central Highlands South-east Southern Ranges willow Cabbage gum
(Eucalyptus pauciflora)
forest and woodland on dolerite Central Highlands South-east Southern Ranges willow Shrubby swamp gum/white gum
(Eucalyptus ovata/Eucalyptus viminalis)
forest. This includes St. Pauls Pine
(Callitris oblonga)
forest King Flinders Northern Slopes Ben Lomond Northern Midlands Central Highlands South-east Southern Ranges willow White gum
(Eucalyptus viminalis)
wet forest King Flinders Northern Slopes Ben Lomond Northern Midlands South-east willow Blackwood
(Acacia melanoxylon)
forest on flats Flinders King Northern Slopes Ben Lomond West Note: Communities Source: DPIWE Tas Weed Management Strategy - Gorse, Tas Weed Management Strategy, willows, Tas Weed Management Strategy, blackberry, Tas Weed Management Strategy, Bridal creeper, Tas Weed Management Strategy, serrated tussock, Tas Weed Management Strategy, Boneseed - All in press The number of threatened species and communities considered at risk from weed invasion by the six weeds of national significance present in Tasmania. Weed species Threatened species (no.) Threatened communities (no.) Boneseed
(Chrysanthemoides monilifera) 13 4 Blackberry
(Rubus fruticosus
species aggregate) 9 5 Gorse
(Ulex europaeus) 14 11 Serrated tussock
(Nassella trichotoma) 4 5 Willows
(Salix
spp.) 26 5 Bridal creeper
(Asparagus asparagoides) 0 0 Total 66 30 Communities are derived from the classification of communities used for the RFA 1997 and TasVeg 2000. State of the Environment - Tasmanian Indicator. |
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