ecosystems

• A niche is the role that an organism plays within a community.
• The resources an organism requires in its ecosystem include light and nutrient availability.
• The organism’s interactions with other organisms in the habitat can involve competition and predation.
• The conditions an organism can tolerate include temperature.
• Competition in ecosystems occurs when resources are in short supply.
• Plants compete for light, space, water and soil nutrients.
• Animals compete for food, mates, shelter and water.
• Two types of competition exist between species: interspecific competition and intraspecific competition.
• Interspecific competition is between two different species, where they compete for one or a few of the same resources.
• Examples of interspecific competition include shrubs and bushes competing with trees for light.
• Intraspecific competition is between the same species, where they compete for all of the same resources.

  this is much more intense as they require the same resources
• Examples of intraspecific competition include birds of paradise competing for mates by performing dances.