Limitations to distribution range
3 important questions on Limitations to distribution range
What is an ecological niche?
- The ecological niche is a combination of variables that allows species to reproduce, survive and maintain numbers.
- Geographic range is a spatial reflection of niche.
- Niche is NOT natural characteristics, function or a place. It is a concept.
What are the abiotic limitations to the geographical range of a species?
Physical factors
- Rainfall
- Temperature
- Soil and water chemistry
- Fire
- Storms
- etc.
What are the biotic limitations to the geographical range of a species?
Interactions with other organisms
- Competition
- Predation
- Mutualism
- Diseases
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