Trophic levels
Population Dynamics
Population Regulation
Measuring Populations
100

How many trophic levels are there?

4-5

100

What is an example of a limiting factor that is not top, down nor is it bottom up?

Fire

100

What is the definition of ecology?

the study of ecosystems.

100

What is the main difference between the total population and a sample count?

Sample count is only the number of animals is=n a certain area.

200

what is the 2nd trophic level?

 Primary consumer

200

What is a bottom-up factor?

They limit a population by reducing access to their resources.

200

what is a density-dependent limiting factor 

availability of resources.

200

In counting, what is a transect area

The area which they will be surveying.

300

Give us an example of a tertiary consumer

Lion, wolf, Cheeta, Hawk, Shark, etc.

300

Example of a top down factor

Diseases, hunting.

300

what type of graph is the one below?

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Linear

300

what did the strips represent from the elephant population model?

the area of which they are counting the population.

400

How much energy is lost in transferring up a trophic level?

90%

400

is Parasitism density dependent

no

400

What is carrying capacity?

The maximum population that a habitat can sustain.

400

what are the four major types of graphs?

linear, logistic, geometric, and exponential.

500

What trophic level has the most energy

Producer

500

how many factors are there?

2

500

What are the two types of limiting factors related density.

density dependent and density independent.

500

How do you count populations from an airplane if there are massive herds?

Take pictures and count the population within the pictures.

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