Ecosystems

What is an ecosystem?

Where living organisms are linked to it’s non-living surroundings - eg rainforests are ecosystems

What are biomes?

Large scale ecosystems - has the same climate, soil and vegetation

Biome distribution

There are bands across the earth of different biomes and they are distributed by climatic conditions

What does biotic mean?

Living

What does abiotic mean?

Non-living

How do biotic ecosystems rely on abiotic ecosystems?

Biotic rely on sunlight, rainfall and nutrients

What is meant by succession?

The process where a mix of habitat and species in an area changes over time

How does succession affect an ecosystem?

A pioneer species can colonise grounds and this can decay plants and produce nutrients which allows more plants to grow so a dominant species will invade and succession is completed