Question

explain four main causes of current rate of extinction of endemic species

Answer 1

Natural Causes of Extinction of Endemic species

1)Climatic Heating and Cooling

Climate Change is caused by a number of things. The effect that climate has on extinction is very big.

2)Changes in Sea Levels or Currents

The changes in sea levels and currents is a result, in part, of the melting freshwater. The denser, saltier water sinks and forms the currents that marine life depends on.

3) Asteroids/Cosmic Radiation

Asteroids hit the earth with extreme force. The reverberations can be felt around the world. The impact site is completey destroyed. Cosmic Radiation is radiation being emitted from outer space and the Sun. It is hypothesized that being exposed to too much cosmic radiation can mutate genes, which can potentially weaken a species' genepool in the future.

4) Acid Rain

Acid rain forms when sulfur dioxide and/or nitrogen oxides are put out into the atmosphere. The chemicals get absorbed by water droplets in the clouds, and eventually fall to the earth as acid precipitation. Acid rain increases the acidity of the soil which affects plant life. It can also disturb rivers and lakes to a possibly lethal level.

Answer 2

TOP 5 causes of species extinction;

In at number one

Habitat Fragmentation;

In at number two

Agriculture;

In at number three

Human Over-population;

In at number number four

Deforestation;

In at number 5

Poaching and Hunting;