CH 5 ML Population Ecology TEST 2024

Front

What is the expected population structure of territorial bird species?

Back

Uniform

Front

What type of population regulation is indicated by large numbers of female lemmings miscarrying due to stress?

Back

Density-Dependent

Front

If a small island nation starts with 100 people, has 10 immigrants, 20 emigrants, a birth rate of 15, and a death rate of 5, what is the new population?

Back

No change; the population is still 100.

Front

What is the term for the population growth pattern that starts exponentially and then slows down?

Back

Logistic growth.

Front

Why can't a caribou survive in a tropical forest?

Back

The tropical forest does not provide a suitable habitat.

Front

Define 'carrying capacity' in population ecology.

Back

The maximum number of individuals of a species that an environment can support sustainably.

Front

What is 'exponential growth' in population dynamics?

Back

A growth pattern where the population size increases at a constant rate over time.

Front

What are 'limiting factors' in an ecosystem?

Back

Environmental conditions that restrict population growth, such as food, water, and space.

Front

Explain the difference between 'density-dependent' and 'density-independent' factors.

Back

Density-dependent factors are influenced by population size (e.g., competition), while density-independent factors affect populations regardless of size (e.g., natural disasters).

Front

What is a 'habitat' in ecological terms?

Back

The natural environment in which a species lives and grows.