Population Ecology

Organize these options into the right categories for the TYPE of LIMITING FACTORS

Groups:

(a) Density-Dependent

,

(b) Density-Independent

• Disease

• Competition

• Drought

• Volcanic eruption

• Predation

• Space

• Tornado

• Water

• Food

• Increase in temperature

• Hunting by humans

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Draw a sketch of graph that shows exponential growth

Tags

NGSS.MS-LS2-1

Draw a sketch of graph that shows logistic growth

Tags

NGSS.HS-LS2-1

Label the graph

a

b

c

carrying capacity

overshoot

dieback

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What could be reason for an overshoot in population growth?

• abundance of resources (food and water)

• Lack of predators

• Disease and parasites

• plenty of space

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Why does a dieback typically follows an overshoot in population growth?

• depletion of resources (food and water)

• lack of predators

• Disease and parasites

• lack of space

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Identify the time when this population FIRST reaches the carrying capacity (on the curve and on the axis)

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Calculate the growth rate for this scenario:

In a population of deer 20 new fawns are born, 7 deer of various ages die, 3 new does immigrate, and 2 young bucks emigrate from the group

(Show your work -- example: a + b - c = d

Mathematical Equivalence

ON

Tags

NGSS.MS-LS2-4

REAL LIFE SCENARIO: Ken Lee is exposed to Staphylococcus sp. , which is the bacteria that causes staph infection in the skin. The infection first starts with 5 bacteria, which doubles every 30 minutes. Determine how many bacteria are expected to be in Ken Lee's infected spot after 30 minutes.

If initial = 5, then after 30 min --> ______

Tags

NGSS.MS-LS1-5

REAL LIFE SCENARIO: Ken Lee is exposed to Staphylococcus sp. , which is the bacteria that causes staph infection in the skin. The infection first starts with 5 bacteria, which doubles every 30 minutes. Determine how many bacteria are expected to be in Ken Lee's infected spot every 30 minutes until it reaches 2.5 hours.

Tags

NGSS.MS-LS1-5