Owl Pellets
These types of materials are found in owl pellets.
What is indigestive material?
Food chains begin with these organisms
What are producers?
An organism that hunts and eats other organisms.
What are predators?
This is the main source of energy for nearly all food webs on Earth.
What is the Sun/sunlight?
Owls swallow prey whole because they lack these used for chewing.
What are teeth?
We can determine this by dissecting owl pellets.
What is diet?
If many insects died, this level of the food chain would be directly affected.
What are secondary consumers?
This adaptation helps prey blend into their environment to avoid predators.
What is camouflage?
This happens to predator populations when prey populations fall.
What is decrease?
If the owl pellet has many bird bones instead of rodents, there are probably _____ rodents.
What is not many/less?
Owls remove pellets from their body through this process.
What is upchucking (throwing it up)?
Invasive species would occupy the top trophic level (T o F).
What is false?
The relationship between two predators that hunt the same prey.
What is competition?
Blue crabs, striped bass, and osprey are all part of this large Maryland ecosystem and food web.
What is the Chesapeake Bay?
Barn Owls typically hunt these types of small mammals (3, only need one).
What are mice/voles/shrews?
Owl pellets are found here.
What are roosting/nesting sites?
These organisms break down dead stuff.
What are decomposers?
The evolutionary pattern where predators and prey evolve together.
What is coevolution?
This species affects many others in a food web.
What is a keystone species?
Maryland Barred Owls sometimes eat this amphibian.
What are frogs?
This part of the owl's body creates pellets and separates the indigestable items from their food.
What is the gizzard?
This amount of energy is transferred between trophic levels.
What is 10%?
Owls’ silent flight and forward-facing eyes that improve hunting success are examples of this.
What are predator adaptations?
Energy is lost during every energy transfer as this.
What is heat?
This type of owl is easily identified by its heart-shaped white face.
What are Barn Owls?