Lab 9 Predation: Key Terms on Food Webs & Owl Pellets

Predation

interactions in which one organism quickly subdues and consumes another living organism

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RELATIONSHIP

- +/-

prey

Animal hunted or caught for food

owls diet consists of

- insects

- other birds

- small mammals

- amphibians (sometimes)

- reptiles (sometimes)

Gizzard

a muscular pouch on the stomach of a bird species that used for grinding food

Owl pellet formation

the gizzard traps the bones and fur or feathers of prey as it is digested

- gizzard collects the bones of the the prey that cant be digested

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HOW DO OWLS RELEASE THE PELLET

- the owl regurgitates this material as a pellet below their roost

Food webs

diagram representing the complex interactions of interactions of predators and prey

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FEATURES: (BOOK)

- are highly interwoven, with linkages that represent the interactions between different species