Ecology

Competition: The Fight for Resources Occurs when 2 organisms need the same resources in the same space at the same time. Can occur among a species or multiple species. Examples: 2 lions compete for a mate Lion and Hyena fight over food Video

Results of Competition What will happen if 2 species use exactly the same resource in the same way? 1. One species will dominate and the other will die off. 2. One species will adapt to use the resource differently or use another resource.

Carrying Capacity The carrying capacity is largest number of individuals an environment can support. Carrying capacity changes when there is an increase or decrease in the number of organisms in an environment.

Carrying Capacity What will happen to the carrying capacity if producers were removed from the population? What will happen to the carrying capacity if a population is faced with drought? What will happen to the carrying capacity if a predator was removed from the population? Carrying capacity will decrease Carrying capacity will decrease Carrying capacity will increase

Make a Food Chain Seeds  Rabbits  Snakes  Hawks What would happen to the following if seeds were removed from the above food chain? Rabbit - Decrease Hawk - Decrease Snake - Decrease Carrying Capacity - Decrease Will competition increase or decrease? Increase

Make a food pyramid Fish – Increase Zooplankton – Decrease What would happen to each of the following if sharks become extinct? Shark Fish Fish – Increase Zooplankton – Decrease Algae – Increase Zooplankton Algae