Ecology Conservation and Restoration Ecology 3

Question 1

Which concept describes the idea that restored or conserved ecosystems provide benefits to people?

Accepted Answer

Ecosystem services

Answer

Ecosystem services are the direct and indirect benefits that healthy ecosystems provide to humans, including clean water, pollination, and climate regulation.

Question 2

The 'source-sink' dynamic in metapopulation ecology means that:

Accepted Answer

High-quality habitats produce emigrants that sustain populations in poor-quality habitats

Answer

In source-sink dynamics, source habitats have net positive population growth and supply individuals to sink habitats where mortality exceeds reproduction.

Question 3

What is 'assisted migration' in a climate change context?

Accepted Answer

Deliberately relocating species to habitats that will be suitable under future climate conditions

Answer

Assisted migration (also called assisted colonization) moves species to areas projected to become climatically suitable, preempting local extinction.

Question 4

Which metric is commonly used to assess the integrity of a restored wetland?

Accepted Answer

Index of Biotic Integrity (IBI)

Answer

The Index of Biotic Integrity uses assemblage of native species (often fish or macroinvertebrates) to assess how closely a site approaches a reference condition.

Question 5

What is the main purpose of a seed bank in conservation?

Accepted Answer

Preserving genetic diversity of wild and cultivated plant species against extinction

Answer

Conservation seed banks store seeds from wild and domesticated plant species at low temperature and humidity to preserve genetic diversity against future extinction.

Ecology Practice Test

Ecology Practice Test

Ecology Conservation and Restoration Ecology 3