Ecology Answers

How are plants classified

explain the terms

Density-dependent factorDensity-independent factorDetritivoreEcologyEcosystem

 (4) Almost every lecture in this course focused on a different animal behaviour. Choose your favourite and tell me about the adaptive basis of this behaviour. In particular

Favourite behaviour: Gazelle stotting 

1. Name a benefit (B) of this behaviour. What is a cost (C) of this behaviour? 

2. Choosing one personality category, how would this behaviour vary among individuals? 

3. Describe two ways human induced, rapid ecological change can impact this behaviour. 

4. How can this behaviour be used as an early-warning indicator of population threat?     

5. How can knowledge about this behaviour be used to facilitate the successful colonisation of restored or recovering habitat? 

Impact of plastic waste on environment and human health

What happens to air over the high Arctic?

Question 4 options:

it cools, rises, and moves southward at ground level

it cools , sinks, and moves southward at high altitude

it warms, rises, and moves southward at ground level

it warms, sinks and moves southward at high altitude

What type of population does a density-dependent limiting factor affect?

Write short notes on:

i) The Competitive Exclusion Principle 

ii) Population density

iii) Measures to control global warming 

iv) Depleted species

v) Use of the Red Data Book

Give the main difference and one example each of the following:

i) Ecosystem and biosphere 

ii) Keystone species and dominant species

iii) Gross primary production and net primary production

iv) Interspecific and intraspecific interactions

Describe the different types of forests. Mention the importance of forests 

in maintaining the ecological balance of the global ecosystem. (10)

Make clear and labelled diagrams of the various stages of hydrarch or xerarch

succession. (10)