The Red-back spider (Latrodectus hasselti) is commonly found in Australia. They are a small black venomous spider with long thin legs, and the females have a red stripe on their globular abdomen.
Redback, found in Australia
Redback spiders in Australia like dark semi damp environments like in culverts, or under pot plants. But mostly dark tight places
Redback spiders are a unique species that exist solely in Australia. If you need more information on them there are a number of websites available on Google.
the red back spider can live up to 1 year to 3
If by "redback spiders" you mean the kind of widow spiders that grow in Australia, they make the same kind of three-dimensional tangled filament webs that all the member of their Family make. Some other kinds of spiders make orb webs, sheet webs, etc.
No. They are invertebrates
a redback has no affect on the environment accept killing the environment
"Redback spiders can be difficult to remove because mere spraying of pesticides cannot kill redback spiders. Their hiding places have to be identified. Brisbane Pest Control Specialists from Bob Gunn can correctly identiywhere redback spiders are hiding because they know the insect's life cycle and habits." Source: Achive.org - Removing Redback Spiders From The Home
Many species of young spiders produce a long line of silk, and climb up to the top of vegetation, using the wind to take them into the air. In this way spiders are everywhere, travelling huge distances high in the air. Those that land somewhere favourable will breed.The redback spider (Latrodectus hasseltii) is indigenous to Australia.
what are red back appearances
The Red Back Spider and the Funnel Web Spider (sometimes called the Sydney Funnel Web spider) are Australia's two poisonous spiders.
The deadliest spider in Australia is the Red Back spider, closely followed by the Funnel web spider.