5.1 What determines which species occur in a Habitat? Flashcards
What are some examples of Abiotic factors?
- Light (Solar Energy input)
- Climate
- Topography
- Oxygen Availability
- Edaphic
- Pollution
- Catastrphes
Light (Solar Energy Input)
Affected by latitude, season, cloud cover and changes in the Earths orbit.
Climate
Rainfall, wind exposure and temperature
Topography
Altitude, slope aspect (direction land faces) and drainage
Edaphic
Factors connected with soil.
- pH
- Mineral salt availability
- Soil texture
Pollution
Air, water or land
Catastrophes
Infrequent events that disturb conditions
What are examples of Biotic factors?
Competition
Grazing
Mutualism
Competition
Resources like food light water and species can be interspecific or intraspecific
What is interspecific?
Between species x and y
What is intraspecific?
Within species x and x
Grazing
Predation and parasitism are all relationships between two organisms where one benefits at the others expense
Mutualism
Relationship where both partners benefit
What are Biotic factors?
Density dependent where the effects are related to the size of the population relative to the area available.
What does a larger population mean?
The larger the population, the greater the competition for food and space
