Population Dynamics and Species Strategies

This video covers population ecology, focusing on factors affecting population growth, such as intrinsic growth rate and density-dependent and independent factors. It explains exponential and logistic growth models and discusses K and R selected species strategies. The video also covers population calculations, dynamics, and survivorship curves, providing a comprehensive overview of how populations change and adapt over time.

What was the population of whooping cranes in the US by 1938?

• 10,000

• 1,000

• 100

• 15

Which of the following is NOT a factor that affects the intrinsic growth rate of a population?

• Births

• Deaths

• Immigration

• Climate

What is the term for the maximum number of individuals an area can support?

• Growth cap

• Carrying capacity

• Population limit

• Density threshold

Which model describes a population that grows rapidly and then levels off at a carrying capacity?

• Linear growth model

• Cyclic growth model

• Exponential growth model

• Logistic growth model

In population calculations, what does the symbol 'N' represent?

• Carrying capacity

• Net growth

• Initial population

• Change in population

What is a characteristic of K-selected species?

• Rapid population growth and decline

• Few offspring with high parental care

• Short lifespan

• Many offspring with little parental care

Which type of survivorship curve is characterized by high survival rates in early and middle life, followed by a rapid decline in later life?

• Type II

• Type IV

• Type III

• Type I

What is the relationship between the Arctic hare and the Canada lynx an example of?

• Mutualism

• Parasitism

• Commensalism

• Predator-prey

Which species strategy is associated with a boom and bust population cycle?

• K-selected

• r-selected

• Type I survivorship

• Type II survivorship

Which of the following is a density-independent factor affecting population size?

• Flood

• Disease

• Food availability

• Shelter