Ecology
Home
Levels of Organization
Organism
Population
Community
Ecosystem
Cycles of Matter
Hydrologic Cycle
Carbon Cycle
Nitrogen Cycle
Nitrogen Fixation
Succession
Primary Succession
Secondary Succession
Pioneer Species
Natural Disturbance
Human Activities
Biotic Interactions
Competition
Predation
Symbiosis
>
Mutualism
Commensalism
Parasitism
Limiting Factors
Food
Shelter
Water
Space
Disease
Predation/Parasitism
Nesting Sites
Weather
Energy Transfer
Food Chain
Food Web
Trophic Levels
Producer
Consumer
>
Primary Consumer
Secondary Consumer
Tertiary Consumer
Decomposer
Bibliography
Reflections
Shelter
The Second Limiting Factor
Some animals rely on caves, ditches, or other covered areas for protection from predators and weather. If animals didn't have shelter, they wouldn't survive from the predators and wouldn't be able to get away from the weather.
<Next Page>