Population Dynamics
This type of growth happens when resources are unlimited.
What is exponential growth?
When two species compete for the same resources, this may happen.
What is one species is eliminated?
This measures how clear water is.
What is turbidity?
Runoff from farms often contains these two things.
What are fertilizers and pesticides?
These organisms spread quickly and disrupt ecosystems.
What are invasive species?
Formula used to calculate population growth.
What is (Births + Immigration) - (Deaths + Emigration)?
Two species surviving by using different resources is called this.
What is adaptation or niche differentiation?
High turbidity means this about sunlight.
What is less sunlight reaches plants?
Government agency that regulates pollution.
What is the EPA?
Zebra mussels feed on this.
What is phytoplankton?
A population that levels off at a maximum size is at this.
What is carrying capacity?
This happens when populations exceed carrying capacity.
What is population crash or decline?
This condition happens when excess nutrients cause algae growth.
What is eutrophication?
Pollution from sewage affects oxygen by doing this.
What is decreasing oxygen levels?
Zebra mussels increased water clarity by doing this.
What is filtering plankton?
If resources become limited, population growth will do this.
What is slow down or stop?
Graph shape that represents carrying capacity.
What is an S-shaped (logistic) curve?
Low dissolved oxygen can cause this.
What are fish kills?
Human activity that increases sediment in water.
What is erosion?
Food web impact of zebra mussels.
What is decrease in plankton and fish changes?
(5 + 10) - (3 + 6)
What is 6?
Why don’t populations grow forever?
What is limited resources?
Best condition for high dissolved oxygen.
What is cool water with high plant growth and low animal population?
How sediment affects aquatic plants.
What is blocking sunlight?
Why zebra mussels spread so fast.
What is few predators and abundant food?