BLArch Bachelor of Landscape Architecture Bachelor of Landscape Architecture Environmental Science Ecology 2

Question 1

Which ecological concept describes the maximum population size that an environment can sustainably support?

Accepted Answer

Carrying capacity

Answer

Carrying capacity (K) is the maximum population size a given environment can support indefinitely given available resources.

Question 2

In landscape ecology, a 'corridor' primarily functions to:

Accepted Answer

Connect fragmented habitat patches

Answer

Corridors link isolated habitat patches, facilitating wildlife movement, gene flow, and species recolonization.

Question 3

Which biogeochemical cycle is most directly affected by wetland destruction?

Accepted Answer

Nitrogen cycle

Answer

Wetlands are critical sites for denitrification, where bacteria convert nitrates back to atmospheric nitrogen, so their loss disrupts the nitrogen cycle.

Question 4

The concept of 'edge effect' in ecology refers to:

Accepted Answer

Increased species diversity at habitat boundaries

Answer

The edge effect describes the tendency for greater species richness and density at the boundary between two adjacent habitat types.

Question 5

Which of the following best describes a keystone species?

Accepted Answer

A species whose removal causes dramatic ecosystem change

Answer

A keystone species has a disproportionately large effect on its ecosystem relative to its abundance, and its removal causes major structural changes.

BLArch Bachelor of Landscape Architecture Practice Test

BLArch Bachelor of Landscape Architecture Practice Test

BLArch Bachelor of Landscape Architecture Bachelor of Landscape Architecture Environmental Science Ecology 2