Competition and interdependence

• What is an ecology?

  study of the relationships between living organisms and their physical environment.
• What does ecology consider?

  organisms at the individual, population, community, and ecosystem level.
• What is the habitat?

  Natural environment where an organism lives.
• What`s a population?

   all of the organisms of a particular species that live in the same habitat
• In ecology, what is a 'community'?

  All the populations of different species that live together in a habitat
• What`s an ecosystem?

  the interaction of a community of living organisms (biotic) with the non-living (abiotic) parts of their environment
• What`s a competition?

  an interaction between organisms or species in which they both try to use the same limited resources
• Give three resources that animals compete for.

  Territory, mates and food
• Give three resources that plants compete for.

  Water, light, space and mineral ions
• What`s an interdependence?

  All organisms in an ecosystem depend upon one another, with countless complex relationships between them all. 
• The diagram above shows the relationship between grass, rabbits, snakes, and hawks in a habitat. 

  If the population of snakes falls, what is likely to happen to the rabbit population?

  Increase