Population in ecosystems Flashcards

1
Q

What’s population

A

Group of individuals living at the same habitat at the same time and are potentially able to interbreed

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2
Q

What’s carrying capacity

A

A certain size of population of a species the ecosystem can support

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3
Q

What’s a community

A

Population of different species living at the same habitat at the same time

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4
Q

What’s a habitat

A

Place where an organism normally lives

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5
Q

What’s a niche

A

How an organism fits into the environment
It describes where an organism lives and what it does there
It includes abiotic and biotic conditions to which an organism is adapted to survive

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6
Q

What’s intraspecfic competition

A

Individuals of the same species compete with each other for resources like food or water

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7
Q

What is interspecific competition

A

When individuals of diff species compete for resources

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8
Q

what is succession meaning

A

change over time in species that occupy a particular area

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9
Q

First few steps of succession

A

Pioneer species colonise the area
- this changes the environment/ abiotic factors
- environment becomes less hostile so suitable for new species with diff adaptations

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10
Q

Succession continued

A
  • Environment may change in a way becomes less suitable for environemtn
    -change in spices mean diversity usually increases
  • eventually proceeds to form a climax community
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11
Q

What are signs of climax community

A
  • stable population
  • same species present over a long time
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