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5.1 What is an ecosystem?
Biospherethe part of the earth and it's atmosphere inhabited by living organisms.
Ecosystemall the organisms living in a particular area as well as the nonliving features
of that environment, they are self sustaining.
factors that affect an ecosystem can be split into two:
1. Abiotic…

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Biotic factors are generally density dependant
the abundance and distribution of organisms in an area are generally controlled by biotic
and abiotic factor, normally in a complicated interaction of the two.

Anthropogenic factors
Anthropogenic factors are those that arise from human activity. They may be either biotic or
abiotic and…

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the dominant species is the species that has an overriding influence on the rest of the
community.
As succession progresses the number of niches also increases however at climax the
biodiversity can often decrease
.





the climax community does not always consist of trees if there are conditions that make…

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