Unit 2 Populations and Resources Chapter 1 (25-26)

Front

What is a population in ecology?

Back

A population is a group of individuals of the same species living in a specific area at the same time.

Front

What factors can cause a population to decrease?

Back

A population can decrease if the number of deaths exceeds the number of births, or if individuals leave the population.

Front

What is the significance of birth and death rates in population dynamics?

Back

Birth and death rates help determine whether a population is growing, stable, or declining.

Front

What does it mean if a population is stable?

Back

A stable population has equal numbers of births and deaths over a period of time.

Front

What is sampling in population studies?

Back

Sampling is a method used to estimate population size by counting a subset of individuals.

Front

Why is it difficult to count an entire population?

Back

It is often impractical or impossible to count every individual in a population due to size, mobility, or habitat.

Front

What is the role of predators in population dynamics?

Back

Predators can control the size of prey populations, affecting overall ecosystem balance.

Front

What is carrying capacity?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.

Front

How can human activities impact wildlife populations?

Back

Human activities such as habitat destruction, pollution, and overfishing can lead to population declines.

Front

What is the difference between immigration and emigration?

Back

Immigration is the arrival of individuals into a population, while emigration is the departure of individuals from a population.