Community interactions
Population Ecology
Aquatic ecosystems project
Carrying capacity
Miscellaneous
100
What type of relationship is shown in the image?
Mutualism
100
Give an example of a density independent factor.
storm, hurricanes, earthquakes, volcanic eruptions, habitat destruction
100
What did you do to our tanks to start the nitrogen cycle?
We added fish food
100
What is the carrying capacity of this graph?
1000
100
any factor in the environment that does depend on the number of members in a population per unit area
Density Dependent factor
200
A bird makes a nest in a tree. The bird gets a house, but the tree is unharmed. What type of relationship is this?
Commensalism
200
Which of the following describes an organism that has high mortality rates early in life.
Curve A
200
What is the purpose of the plant in your tanks
to provide oxygen for any organisms
200
Will competition increase or decrease the carrying capacity of an ecosystem?
decrease
200
Name 2 benefits from all animal behaviors
Protection and saving energy
300
Bacteria in your stomach and intestines is what type of symbiotic relationship?
Mutualism
300
What are the three types of plant and animal dispersion?
Clumped, Random, Uniform
300
What is the purpose of the gravel in your tank?
to hold down any aquatic plants
300
When a population grows past the ecosystem's carrying capacity, what happens to the population?
The population begins to die and returns back to carrying capacity
300
Name one way to decrease carrying capacity. Be specific
Add more predators, reduce prey, more competition
400
Explain why competition occurs between organisms
Organisms will fight over limited resources.
400
Which survivorship curve describes an organism that has high parental care with low reproduction?
Type 1 survivorship curve
400
What is the ideal nitrite and nitrate level for our fish tanks?
0 for both
400
Based on the data table, what is the carrying capacity of this population.
Year Number of snails
0 1000
1 750
2 580
3 600
4 750
5 1000
6 1200
7 1300
8 1350
9 1340
10 1350
1340/1350
400
Give an example of an organism that has this type of population growth.
Human population
500
Provide an explanation for why the population of hares are always greater than the population of lynx.
Hares receive more energy because they are lower on the food web compared to lynx.
500
What type of interaction is shown in this image. Be specific
Intraspecific competition
500
What is the purpose of the LED lights
To help the aquatic plants grow via photosynthesis
500
What is the independent and dependent variable of a carrying capacity graph?
Independent: Time
Dependent: Population size
500
Describe a Type II survivorship. Give an example of an organisms that has a Type II survivorship.
Constant mortality/survivorship, birds, lizards, reptiles, rodents