What are the natural events and human impacts that can affect an ecosystem?

 

There are many varities of different human and natural impacts that affect ecosystems of ur world,  negatively or positively. Some human and natural events impact an ecosystem only slightly and some impact our world majorly.They range from controlled bushfires to tsunamis and floods.

 

Some natural effects include:

• Bushfires, which can clear dead plants and can possibly provide more room for native plants. Some plant seeds require extreme heat to sprout, meaning the fire can cause more trees to grow. Though bushfires can  also can destroy homes, pollute the air, kill wildlife and people.

• Tsunami's,  they are hard to predict when they will occur and people only have a hours to prepare for them. They wipeout hundreds and thousands of people, wildlife, and destroy towns and can cause catastrophic damage, such as destroy a whole environment.

• Drought, an extrtemely long period of time with no rainfall, resulting in no water supplies. This can relsult in an increase in death in organisms of all kind, plants dying and causing species to become extinct in this area or forcing them to find another home.

• Floods, occur when there is heavy rainfall for a while and water then covers an area of land that is not normally containing water.

• Habitat distruction, is when a habitat is disrupted by the act of land clearing, logging or mining and causes significant damage.

• Introducing species, this causes more competition for food between organisms, killing off native animals, destroying habitats and their food chains.

• Chemical pesticides, which are chemicals that are used for killing insects, can also effect other organisms and not just insects. Causing deformities in organisms and offspring becoming distorted.

• Chemicals released into the atmosphere, this can destroy the ozone layer, biomes and organisms specifically

• Over farming, when we exceed the maximum crop yeild or add to much water to the soil, eroding the land and allowing to much salt for any organisms to grow.

• Deforestation has a major impact on forest biomes. Forests are being cut down quicker than they can grow and it is having a devastating result on the wildlife of rainforest, temperate forest, chaparral, and taiga forests. Deforestation decreases the food production dramatically, leading to fewer food supply for the first order consumers and humans. Then first order consumers start dying out, then killing of second order and then third, etc. It causes a whole chain reaction of corruption.

• Drainage in aquatic biomes, threatens all organisms living within them. Lakes and Ponds being drained of their water can cause a massive decrease in life, especially if there is no other water supply to move to. Deserts unquestionably have been effected by drainage. Over time biomes can form hotter climate and water supplies are evaporated by the heat forming them into barren deserts.

• Irrigation is a good way to revegetate a region. It can help a biome drastically in growing back into liveable ecosystem to producing resources for farming and other organisms. It is a useful way to create a healthy environment within the land you desire to transform into a farming ground or rejuvenate it.

And the list goes on.