Density Independent vs Dependent Factors

Due to stress from competition, large numbers of female lemmings miscarry their young and fail to reproduce.

• Density-Dependent

• Density-Independent

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Many fish die due to a drastic change in water temperature.

• Density-Dependent

• Density-Independent

Tags

NGSS.MS-LS2-4

An extensive drought in the plains threatens wildebeest, giraffe, zebra, and springbok populations.

• Density-Dependent

• Density-Independent

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a density-dependent limiting factor on a deer population?

• human activities

• unusual weather

• competition

• natural disaster

Tags

NGSS.MS-LS2-4

parasites, disease, predators, are examples of what type of limiting factors?

• density dependent

• density independent

• survivorship

• type 1 curve

Tags

NGSS.MS-LS2-4

Parasites, disease, and predators, are examples of what type of limiting factors?

• density dependent

• density independent

• survivorship

• type 1 curve

Tags

NGSS.MS-LS2-4

On Isle Royale, wolves are the main predators of moose. The graph shows the changing wolf and moose populations on the island over a 50-year time span. Which statement provides the strongest explanation for the trends in the two populations?

• The populations of predators and prey are limited by abiotic factors only.

• Predation acts a density-dependent limiting factor on prey, but not on predators.

• Predation acts as a density-independent limiting factor on predators, but not on prey.

• Predator-prey relationships act as density-dependent limiting factors on both predators and prey.

Tags

HS-LS2-1

HS-LS2-2

HS-LS2-6

Which of the following would NOT be an example of a density independent factor?

• predation

• tornado

• hurricane

• fire

Parasites, disease, and predators are examples of what type of limiting factors?

• density dependent

• density independent

• survivorship

• type 1 curve

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is an example of a density independent factor?

• A severe frost wiping out the citrus crop in Florida

• An increase in the frog population causing an increase in the snake population

• Overcrowding in a village resulting in many children not reaching adulthood

• The eruption of Mt. St. Helens destroying most of the wildlife in the immediate area