0
There are numerous major threats to Australia plants.
Clearing by humans in a major cause of endangerment. Not only are healthy specimens decimated when large tracts of land are cleared, but the lack of specimens means there is less chance for pollination and hence reproduction of the species.
Another threat is the accidental or deliberate importation of pests which kill the plants. Sometimes these pests kill off native insects which are the primary pollinators for the native plants. Without these insects, the plants cannot be pollinated.
Similarly, the accidental or deliberate introduction of non-native animals can lead to extinction of plants. The introduction of rabbits has caused the extinction of several species, as they eat a plant right down to the roots. Sheep and other grazing animals have had a similar effect.
Introduced non-native invasive species have taken over native vegetation habitat, competing with Australian plants.
Man has altered natural bushfire regimes in Australia, and this has affected how and when plant seeds germinate.
The introduction and spread of agriculture has led to increased desertification, particularly in South Australia. This, in turn, has threatened the survival of native species living in specific environments. Also, man fiddles with natural waterways to provide irrigation for his crops. When natural watercourses are altered, this can sometimes result in more prevalence of flooding, which also poses a threat to native species, particularly when they are not used to it.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What has the author J D Briggs written?
J. D. Briggs has written: 'Rare or threatened Australian plants' -- subject(s): Endangered plants, Rare plants
Are narwhals rare?
Not really rare but they are near threatened.
Are hippos rare?
Hippos are classed as 'vulnerable', which is 'threatened' but not severely threatened.
What percent of the world has narwhals?
Not really rare but they are near threatened.
What are some rare plants in the Amazon rain forest?
plants are rare sometimes
Are Australian ponies rare?
no I have over 9000 of them
What are three threatened or rare plants of Australia?
There are around 1180 threatened species of plants in Australia. Some of the more critically endangered plants include:Freycinet Waxflower - Philotheca freycianaPhillip Island Hibiscus - Hibiscus insularisCanberra Spider-orchid - Arachnorchis actensisWindswept Spider-orchid - Caladenia dienemaBlack-tipped Spider-orchid - Caladenia anthracinaLindley's Spider-orchid - Caladenia lindleyanaNative Wintercress - Barbarea australisNightcap Oak - Eidothea hardeniana
Is the Coromandel striped gecko endangered?
Yes it is endangered/threatened/rare.
What are some rare pets?
The maccaw the red ones are rare also an australian perrente
What has the author Lisa Schassberger Roe written?
Lisa Schassberger Roe has written: 'Update to the report on the conservation status of Arabis fecunda, a candidate threatened species' -- subject(s): Botany, Sapphire rockcress, Arabis fecunda, Rare plants 'Rare plant inventory of the outstanding natural areas of the Rocky Mountain Front' -- subject(s): Natural areas, Botany, Rare plants 'Status review of Cirsium longistylum, U.S.D.A. Forest Service, Region 1 Lewis and Clark National Forest, Montana' -- subject(s): Cirsium longistylum, Long-styled thistle, Endemic plants, Rare plants, Botany 'Update to the status review of Howellia aquatilis' -- subject(s): Botany, Water howellia, Rare plants 'Status review of Aquilegia brevistyla, U.S.D.A. Forest Service, Region 1 ; Lewis & Clark National Forest, Montana' -- subject(s): Short-styled columbine, Botany, Rare plants, Aquilegia brevistyla 'Establishment report for exclosure studies of Arabis fecunda' -- subject(s): Sapphire rockcress, Botany, Endemic plants, Arabis fecunda, Rare plants 'Status review of Phlox kelseyi var. missoulensis, U.S.D.A. Forest Service, Region 1, Lewis and Clark National Forest, Montana' -- subject(s): Botany, Phlox kelseyi, Rare plants 'Report on the conservation status of Astragalus barrii, a candidate threatened species' -- subject(s): Botany, Barr's milkvetch, Astragalus barrii, Rare plants
Why are silkies important to Australian agriculture?
because they are rare
What has the author J Stephen Shelly written?
J. Stephen Shelly has written: 'Update to the report on the conservation status of Claytonia lanceolata var. flava, a candidate threatened taxon' -- subject(s): Botany, Rare plants, Claytonia lanceolata flava 'Demographic monitoring of Penstemon lemhiensis, Beaverhead National Forest' -- subject(s): Botany, Rare plants, Penstemon lemhiensis 'Report on the conservation status of Penstemon lemhiensis, a candidate threatened species' -- subject(s): Botany, Rare plants, Penstemon lemhiensis 'Status review of Lesquerella humilis, U.S. Forest Service, Region 1, Bitterroot National Forest, Montana' -- subject(s): Botany, Lesquerella humilis, Rare plants 'Demographic monitoring of Penstemon lemhiensis, Beaverhead National Forest, 1992 progress report' -- subject(s): Botany, Rare plants, Penstemon lemhiensis 'Status review of Cypripedium passerinum, U.S. Forest Service, Region 1, Flathead and Lewis & Clark National Forests, Montana' -- subject(s): Botany, Rare plants, Sparrowegg lady's slipper 'Status review update and establishment of demographic monitoring studies' -- subject(s): Botany, Rare plants, Penstemon lemhiensis
