Social Predation. How group living benefits predators and prey
Predators and Prey Ecological Relationships Ms. Oliveri October 16, 2007.
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Transcript of Predators and Prey Ecological Relationships Ms. Oliveri October 16, 2007.
![Page 1: Predators and Prey Ecological Relationships Ms. Oliveri October 16, 2007.](https://reader035.fdocuments.us/reader035/viewer/2022070401/56649f175503460f94c2df15/html5/thumbnails/1.jpg)
Predators and Prey
Ecological Relationships
Ms. Oliveri
October 16, 2007
![Page 2: Predators and Prey Ecological Relationships Ms. Oliveri October 16, 2007.](https://reader035.fdocuments.us/reader035/viewer/2022070401/56649f175503460f94c2df15/html5/thumbnails/2.jpg)
AIM
• To review predator and prey relationships
• To discuss the importance of healthy week and how people are mammals that need to take care of themselves too!
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What is a Predator?
• An organism that eats another organism
• Make a list of as many predators as you can think of right now! (Don’t forget there are land, water, and air predators!)
• How did you do?
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Predators
• Reef Predators
• Land Predators
• Air Predators
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What are Prey?
• The organism which the predator eats.
• Try and make another list of the different prey that your list of predators may eat!
• If you finish that, try and remember the pictures of predators you just saw and make a list of their prey too!
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Prey
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Predator and Prey Evolve Together
• The prey is part of the predator's environment
• The predator dies if it does not get food
• A predator needs to evolve in order to catch and eat the prey!
• Think of some ways a predator would need to evolve to continue catching its prey…
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Ways a Predator Evolves
• Speed• Stealth• Camouflage (to hide while approaching the prey)• A good sense of smell, sight, or hearing (to find
the prey)• Immunity to the prey's poison• Poison (to kill the prey) • The right kind of mouth parts or digestive system
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Ways Prey Evolves
• Prey need to evolve to avoid being eaten!• Think of a few ways prey evolve to avoid their
predators…• Speed• Camouflage (to hide from the predator) • A good sense of smell• Sight• Hearing (to detect the predator)• Thorns • Poison (to spray when approached or bitten)
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One Example…• Snowy environment…
• Polar bear is white to sneak up on prey
• Seal is white to avoid being noticed by predator!
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Lions and Gemsbok
• The fastest lions are able to catch food and eat, so they survive and reproduce, and gradually, faster lions make up more and more of the population.
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Predator-Prey Relationships
• The fastest gemsbok are able to escape the lions, so they survive and reproduce, and gradually, faster gemsbok make up more and more of the population!
• As both organisms become faster to adapt to their environments, their relationship remains the same: because they are both getting faster, neither gets faster in relation to the other.
• This is true in all predator-prey relationships!!!