Population Ecology

Largest number of individuals of a population that the environment can support...  

• carrying capacity
• population crash
• lag phase
• mutualism

What is the carrying capacity for this sheep population?

• 1.8 million
• 1.25 million
• 1.6 million
• 1.o million

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?

• Squirrel Population
• Sunlight
• Grass available

Which kind of growth does the human population follow? It is described as a J-shaped curve.

• Exponential Growth
• Logistic Growth
• Outstanding Growth
• Minimal Growth

Which of the following are density dependent factors?

• competition for resources

• predation

• disease

• natural disasters

Which of the following are examples of a density independent factors?

• forest fire

• seasonal cycles

• storms

• disease

The mortality rate of organisms following a type I survivorship curve is __________.

• fairly constant throughout life

• higher in post-reproductive years

• lower after the organisms become established

• unrelated to age

Animals such as pandas are long lived, mature slowly, and generally produce fewer offspring during their life spans but place a greater investment in each. What term is applied to this type of reproductive strategy?

• K-strategy

• r-strategy

Which contribute to a positive population growth?

• immigration

• positive birth rate

• emigration

• positive death rate