1 / 11

Predators and Prey

Predators and Prey. Factors That Affect Population Growth. Consider the Following Web. What relationships in the web could affect the hare (rabbit) population and how?. Lynx. Fox. Hare (Rabbit). Squirrel. Plant Roots. Shrubs/Berries. Predator – Prey Relationships.

bryga
Télécharger la présentation

Predators and Prey

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Predators and Prey Factors That Affect Population Growth

  2. Consider the Following Web • What relationships in the web could affect the hare (rabbit) population and how? Lynx Fox Hare (Rabbit) Squirrel Plant Roots Shrubs/Berries

  3. Predator – Prey Relationships • Predator-Prey relationships keep the populations of animals in balance in a healthy ecosystem. • The Prey (e.g. Hare) • Provides a source of food to the predator. • The Predator (e.g. Lynx) • Keeps the population of the prey in check (i.e. not too big) • When this relationship is disturbed or becomes unbalanced: • Populations become too big • Starvation occurs (endangering the predator or prey species) • Other parts of the food web are affected (the web may collapse)

  4. Hare & Lynx Population Data

  5. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years

  6. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years 1. Low Predator Population

  7. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years 2. Increasing Prey Population

  8. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years 3. Increasing Predator Population

  9. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years 4. Decreasing Prey Population

  10. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years 5. Decreasing Predator Population

  11. Predator & Prey Cycles • Populations of predators and prey are closely related • Their cycles repeat predictably over seasons or years 6. Cycle Repeats

More Related