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Introducing the Environment: Ecology and Ecosystems 7 Ecological health,…
Introducing the Environment: Ecology and Ecosystems
7 Ecological health
Why study the biosphere,
ecosystems and their
relationships?
Wonder and fascination of nature
Preserving the ecosystems of the Earth, and
their ability to sustain us, is now our responsibility
So we need to find out how to protect our ecosystems
How can we increase
an ecosystem's ability to
recover from the changes that have
already happened (ecological resilience)?
resist change
(ecological resistance)
Increasing our demands on other
living things and the physical environment
Pressure for economic growth and development
Human population continues to grow
Ecological health
Difficult to define or measure
Combination of many different things
The diversity, numbers and condition of the living organisms in an ecosystem
The complexity of the food webs involved
The quality of the air, soil and water that make up the physical environment.
Human influence now global
Use of physical resources
Use of energy resources
Creation of artificial ecosystems
Use of biological resources