Population Ecology

The common brushtail possum is a marsupial native to Australia. This possum was introduced to New Zealand where it had no natural predators and had an abundant food supply. Which of these likely occurred a few years after the introduction of this possum to New Zealand?

• The possums became extinct.

• The possums developed shorter life spans.

• The possum population grew to a larger size.

• The possum population evolved into a different species.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Processes that remove individuals from a population.

• death and emigration

• birth and immigration

What type of growth is represented in this graph?

• exponential

• logistic

• survivorship curve

• predator-prey

What is the carrying capacity of the following graph?

• 1000

• 8000

• 800

• 600

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following populations is most likely to go extinct?

• a very small population in an unstable environment

• a moderate-sized population of r strategists

• a large population with lots of genetic variability

• all would be equally likely to go extinct

Tags

NGSS.HS-LS4-5

How many types of survivorship curves are there?

• 1

• 2

• 3

• 4

A good way to estimate the population size.

• mark-recapture

• count everyone of them

• satellites

• cameras

Refer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?

• A

• B

• C

• this is not a survivorship curve

Which best describes the graph of logistic growth?

• S-shaped

• J-shaped

• W-shaped

• U-shaped

What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4