What is an Ecosystem? Ecosystems are interdependent communities of plants and animals together with the habitat to which they have adapted – a natural unit with biotic and abiotic components that interact.
It is like a tapestry. The Bayeux Tapestry WHY?
Biotic and Abiotic Factors plants relief climate light nutrients minerals air water fungi bacteria soil animals geology Abiotic Factors Biotic Factors
Small Scale – Micro - Ecosystems Under a rock A pond A hedgrow
Large Scale – Macro - Ecosystems The Tropical Rainforest Biome The Desert Biome The largest scale ecosystems can be considered as BIOMES – a major subdivision of the earths biosphere identified by a shared, characteristic plant community, adapted to the environmental conditions of the region.
The Systems Approach <ul><li>Ecosystems are complex natural systems that exist in a state of dynamic equilibrium. </li></ul><ul><li>They are resilient to change. </li></ul><ul><li>However they can also be very vulnerable to change. </li></ul>