Keystone Species
What is a keystone species?
A species that is:
Important
Creates balance
Critical
This funny creature lives within sea anemones for protection from predators.
What is a Clown Fish?
True or false: An example of a biotic factor is a dead tree.
True
Examples of limiting factors
food, water, shelter...
Which of the following organisms is considered a producer? A maple tree, a grasshopper, or worm?
What is a maple tree?
Provide an example of a keystone species.
Sea Otter, Wolf, Krill
The Tongue-eating louse eats the tongue of its host and becomes the host's new tongue siphoning nutrients from the host. This an example of what type of symbiosis?
What is parasitism?
What is the definition of an abiotic factor?
Any factor part of an ecosystem that is non-living/never has lived.
All the organisms of the same species that live in the same area at the same time
Population
A organism that eats only plants would be what level of a food chain?
What is primary consumer
What is the role of a keystone species?
To regulate the population of the ecosystem.
These rock-like creatures attach themselves to whales as a way to feed on microorganisms as the whale swims.
What is a barnacle?
Provide 2 examples of abiotic factors in a marine ecosystem.
**teacher will determine answers**
Impact of a increase amount of primary consumers (krill,rabbits)
Increase amount of secondary consumers (whales,foxes...)
This organism makes up the base of all aquatic (water) food chains. It is the main producer in the ocean and the Chesapeake Bay.
What is phytoplankton?
What would happen if an keystone species were removed from the food web?
it would create imbalance.
Pistol shrimps rely on a chemical cue from gobies that warns them that predators are around. This is an example of what type of symbiosis?
What is Mutualism?
Provide 2 examples of biotic factors in a marine ecosystem.
**Teacher will determine answers.**
Impact of no apex predator in an ecosystem
Populations of primary and secondary consumers will increase.
his is considered the primary source of energy for all foods webs?
What is the Sun?
How was The Kelp Forest impacted by the removal of the otter?
Increase number of sea urchin
Decrease number of kelp
What helps us define the type of symbiotic relationship we are observing?
What is, the effect on the the second organism?
What makes up an ecosystem?
All the living and nonliving factors.
The size of a population compared to the amount of space available. (hint m/v)
Population density
A hawk will eat snakes, lizards, fish, mice, rabbits, squirrel, grasshoppers and crickets. If all the grasshoppers disappeared, what type of effect would this have on the hawk population. Answer choices: Great effect or Little to No effect.
What is Little to No Effect.