5.1 What determines which species occur in a Habitat? Flashcards

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1
Q

What are some examples of Abiotic factors?

A
  1. Light (Solar Energy input)
  2. Climate
  3. Topography
  4. Oxygen Availability
  5. Edaphic
  6. Pollution
  7. Catastrphes
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2
Q

Light (Solar Energy Input)

A

Affected by latitude, season, cloud cover and changes in the Earths orbit.

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3
Q

Climate

A

Rainfall, wind exposure and temperature

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4
Q

Topography

A

Altitude, slope aspect (direction land faces) and drainage

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5
Q

Edaphic

A

Factors connected with soil.

  • pH
  • Mineral salt availability
  • Soil texture
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6
Q

Pollution

A

Air, water or land

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7
Q

Catastrophes

A

Infrequent events that disturb conditions

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8
Q

What are examples of Biotic factors?

A

Competition
Grazing
Mutualism

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9
Q

Competition

A

Resources like food light water and species can be interspecific or intraspecific

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10
Q

What is interspecific?

A

Between species x and y

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11
Q

What is intraspecific?

A

Within species x and x

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12
Q

Grazing

A

Predation and parasitism are all relationships between two organisms where one benefits at the others expense

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13
Q

Mutualism

A

Relationship where both partners benefit

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14
Q

What are Biotic factors?

A

Density dependent where the effects are related to the size of the population relative to the area available.

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15
Q

What does a larger population mean?

A

The larger the population, the greater the competition for food and space

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16
Q

What does Antropogenic mean?

A

Arises from human activity.

17
Q

Examples of Antropogenic Factors

A

Deforestation

Grazing

18
Q

Why can species survive in a habitat?

A

Because they have adaptations that enable them to cope with both the biotic and abiotic conditions in their niche.

19
Q

What is Succession?

A

A community that changes over time.