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Bio Factsheet
September 1997 Number 5 A population April is a group An 1997 of organisms Idiot's of one species Guide
in a particular location. to The Populations
location may be defined by Number
natural
boundaries (eg. an island) or defined by the researcher (eg a particular field). We may…

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Biotic factors may be due to competition within the species for food and territory, competition with another species for resources,
predation or parasitism. They may act very indirectly - what happens to a species in one part of a food web is likely to influence
the numbers of many others…

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Page 5

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An Idiot's Guide to Populations BioFactsheet
Density dependent factors, however, usually exert a regulatory effect - they
Variable Carrying Capacity act to reduce the rate of
increase as the population grows larger. This is
The carrying capacity is determined by the
availability of resources. This usually modelled by considering the…

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Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
Bio Factsheet
September 1997 Number 5 A population April is a group An 1997 of organisms Idiot's of one species Guide
in a particular location. to The Populations
location may be defined by Number
natural
boundaries (eg. an island) or defined by the researcher (eg a particular field). We may…

Page 3

Preview of page 3
Biotic factors may be due to competition within the species for food and territory, competition with another species for resources,
predation or parasitism. They may act very indirectly - what happens to a species in one part of a food web is likely to influence
the numbers of many others…

Page 4

Preview of page 4

Page 5

Preview of page 5

An Idiot's Guide to Populations BioFactsheet
Density dependent factors, however, usually exert a regulatory effect - they
Variable Carrying Capacity act to reduce the rate of
increase as the population grows larger. This is
The carrying capacity is determined by the
availability of resources. This usually modelled by considering the…

Comments

No comments have yet been made