ES bell work Wed 12/4

Front

What is a mark and recapture experiment?

Back

A method used to estimate the population size of animals by capturing, marking, and releasing them, then recapturing to see how many marked individuals are found.

Front

How do you estimate a population using mark and recapture?

Back

Use the formula: (Number of marked individuals in the second sample / Total number of individuals in the second sample) = (Number of marked individuals in the first sample / Total population size).

Front

What is succession in ecology?

Back

The process by which ecosystems change and develop over time, often following a disturbance.

Front

What are pioneer species?

Back

The first species to colonize previously disrupted or damaged ecosystems, such as lichens and mosses.

Front

What is a climax community?

Back

A stable and mature ecological community that has reached a final stage of succession.

Front

Why do scientists use sampling techniques?

Back

Because it is not possible to count an entire population accurately.

Front

What happens to population estimates if marked individuals die before recapture?

Back

The population estimate will be an overestimate.

Front

What is the role of lichens in ecological succession?

Back

Lichens help to break down rock and create soil, allowing other plants to grow.

Front

What is an abiotic factor?

Back

Non-living components of an ecosystem, such as sunlight, water, and minerals.

Front

What is a biotic factor?

Back

Living components of an ecosystem, such as plants, animals, and microorganisms.