Interactions between populations

Created by: Esme.B
Created on: 05-03-18 10:57

List the x5 key main steps linking the relationship between a population of a predator and its prey?

1)predator population gets bigger,more prey eaten.2)prey population decreases,less food for predators 3).Less food,fewer predators survive+population size reduces.4)Fewer predators,less prey eaten,population size decreases 5).cycle starts again.

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X2 types of competition?

Interspecific competition + Intraspecific competition

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Interspecific competition?

Competition between two different species. - Can affect both population size of a species and its distribution within an ecosystem

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Intraspecific competition?

Competition between individuals of the same species. - Keeps population size relatively stable during stationary phase.

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What's 'The competitive exclusion principle'?

No two species can occupy exactly the same niche’- The more overlap between two species niches the more intense the competition

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Allelopathy (chemical competition)?

competition between plants. Not passive. Some plants can secrete chemicals into their habitat which may inhibit growth, germination or nutrient uptake in other plants.

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Other cards in this set

Card 2

Front

X2 types of competition?

Back

Interspecific competition + Intraspecific competition

Card 3

Front

Interspecific competition?

Back

Card 4

Front

Intraspecific competition?

Back

Card 5

Front

What's 'The competitive exclusion principle'?

Back

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Interactions between populations