Why does Australia have a high biodiversity?
Australian biodiversity has been influenced by the range and diversity of environmental conditions in Australia, which are different from most other countries due to characteristics such as nutrient-poor soils, natural climatic variability, high fire frequencies and a generally flat topography.
What makes Australia biodiverse?
SNAPSHOT OF AUSTRALIA’S BIODIVERSITY
Australia is the most isolated inhabited continent and its geology is the oldest in the world. These factors, combined with its size and its long-term and geographical variations in climate make Australia one of the most biologically unique and diverse countries in the world.
Why does Australia have a good environment?
Australia has some of the oldest land surface on earth and while rich in biodiversity its soils and seas are among the most nutrient poor and unproductive in the world.
Why is Australia’s biodiversity so unique?
The uniqueness of Australia’s biodiversity is largely due to this continent being separated from other land masses for millions of years. … Many of Australia’s species, and even whole groups of species that comprise taxonomic families, are endemic (unique) to this continent (Table 8.1).
Is Australia losing biodiversity?
The main factor in the loss of biodiversity is the increased rate of population growth. This has led to habitat change through land clearing and urbanisation, hunting and exploitation. The introduction of new species is also a threat to Australia’s biodiversity.
Why does Australia have such a unique Zoogeographic region and biomes?
Why does the Australian zoogeographic region have so many unique animal species? … During large periods of time while most continents were connected, the climate was more equitable, so more evolution of plants and animals. Australia was so separated that evolution occurred with little outside influence.
Why is Australia geologically stable?
The stability of the Australian continent, with limited volcanic activity for many millions of years, and the relatively small amount of seismic activity is the result of Australia being situated in the centre of its tectonic plate, well away from the active regions along its margins, particularly in New Guinea and New …
Why does Australia look red from space?
In this type of environment, these rocks actually begin to rust. As the rust expands, it weakens the rock and helps break it apart. The oxides produced through this process give the ground its reddish hue.