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Ecosystems 1 Introduction

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Information about Ecosystems 1 Introduction
Education

Published on September 16, 2008

Author: ecumene

Source: slideshare.net

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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

Ecosystems exist at a range of scales

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 Worlds Biomes

The Systems Approach Ecosystems are complex natural systems that exist in a state of dynamic equilibrium. They are resilient to change. However they can also be very vulnerable to change.

Ecosystems are complex natural systems that exist in a state of dynamic equilibrium.

They are resilient to change.

However they can also be very vulnerable to change.

 

It can get pretty complex!

Don’t forget the basic components of an ecosystem

Key Terms Summary Biomass Habitat Community Biotic / abiotic Organic / inorganic Biome Systems approach Feedback Biodiversity Biosphere (ecosphere)

Biomass

Habitat

Community

Biotic / abiotic

Organic / inorganic

Biome

Systems approach

Feedback

Biodiversity

Biosphere (ecosphere)

BUT Why do we study ecosystems?

 

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