Ecological interactions
Download
1 / 7

Ecological Interactions - PowerPoint PPT Presentation


  • 103 Views
  • Uploaded on

Ecological Interactions. Interacting with the Environment. LIMITING FACTORS. An environment only contains a certain amount of food, water, shelter and other resources. When one of those resources becomes scarce it is called a LIMITING FACTOR.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Ecological Interactions' - ethan


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Interacting with the environment
Interacting with the Environment

LIMITING FACTORS

  • An environment only contains a certain amount of food, water, shelter and other resources.

  • When one of those resources becomes scarce it is called a LIMITING FACTOR.

  • This means that a population’s size can become limited by that factor.


Interacting with the environment1
Interacting with the Environment

CARRYING CAPACITY

  • When limiting factors become scarce populations become smaller.

  • This means that an environment has reached carrying capacity.

  • CARRYING CAPACITY is the maximum number of organisms that an environment can support.


Interactions between organisms
Interactions Between Organisms

COMPETITION

  • Competition happens between populations.

  • Competition also happens within populations.


Interactions between organisms1
Interactions Between Organisms

Predator/Prey Interactions

  • Predators have adaptations that make them efficient hunters.

    • Ex: Speed, stealth, coloration

  • Prey have adaptations that help them escape from predators.

    • Ex: Traveling in packs, warning coloration, mimicry, chemicals


  • Interactions between organisms2
    Interactions Between Organisms

    SYMBIOSIS

    • Mutualism – Both organisms benefit.

    • Commensalism – One organism benefits the other is unaffected.

    • Parasitism – One organism benefits and the other is harmed.


    Interactions between organisms3
    Interactions Between Organisms

    Coevolution

    • When a long-term change takes place in two species because of their close interactions with one another, the change is called COEVOLUTION.


    ad