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.)

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.

What is a pitfall trap?

Give three (3) examples of abiotic factors.

Give the definition of abiotic factors.