Open-Book Test: Ecological Field Studies

What do scientists do to study an ecosystem?

• Define the boundary of the study area

• Identify the species using field guides

• Refer to scientific literature

• Determine the number of each species

• All of the above

What are quadrats?

• This is a technique that involves capturing organisms.

• These are square frames which can be divided into grids.

• These are buried containers with their openings at the soil surface.

• These are lines stretched across an area to demarcate a study area.

What is the belt transect?

• This is a line that is stretched across an area to demarcate a study area.

• A buried container with its opening at the soil surface.

• Temperature, humidity, and salinity.

• This is a technique that involves catching organisms.

What are some examples of motile organisms that can be observed and counted by using binoculars and SCUBA gear? (Name 2.)

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The SCUBA in "SCUBA gear" stands for:

What can microscopic organisms by observed with?

• Traps

• Nets

• Microscopes

• Magnifying glasses

Explain the mark, release and recapture technique.

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What is a pitfall trap?

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Give three (3) examples of abiotic factors.

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Give the definition of abiotic factors.

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