Podcast
Questions and Answers
According to Lewontin (1969), when is a system considered to be globally stable?
According to Lewontin (1969), when is a system considered to be globally stable?
- When it is able to recover to the initial state after disturbance
- When it is resistant to displacement from its initial state
- When it is able to return to an equilibrium point following small disturbances
- When it is able to return following any degree of disturbance (correct)
What term has often been used in reference to the response of an ecosystem to a disturbance?
What term has often been used in reference to the response of an ecosystem to a disturbance?
- Perturbation
- Inertia
- Equilibrium
- Resistance (correct)
What have ecologists separated into two aspects in the response of ecosystems to disturbance?
What have ecologists separated into two aspects in the response of ecosystems to disturbance?
- Equilibrium and inertia
- Stability and variability
- Displacement and recovery
- Resistance and recovery (correct)
What has been called 'inertia' by some ecologists in relation to the response of ecosystems to disturbance?
What has been called 'inertia' by some ecologists in relation to the response of ecosystems to disturbance?
What term has frequently been used in reference to the response of an ecosystem to a disturbance by various ecologists?
What term has frequently been used in reference to the response of an ecosystem to a disturbance by various ecologists?
According to Cairns and Dickson (1977), what term has been applied to the ability of a system to resist displacement from its initial state?
According to Cairns and Dickson (1977), what term has been applied to the ability of a system to resist displacement from its initial state?
What is the term used to describe the ability of a system to absorb small disturbances and prevent amplification?
What is the term used to describe the ability of a system to absorb small disturbances and prevent amplification?
Which term refers to the ability of a system to return to its original state after a disturbance?
Which term refers to the ability of a system to return to its original state after a disturbance?
What term is used to describe the amount of disturbance a system can absorb without flipping to an alternative state?
What term is used to describe the amount of disturbance a system can absorb without flipping to an alternative state?
According to the text, what is the magnitude of change referred to as?
According to the text, what is the magnitude of change referred to as?
What is the extent of return to the original state called?
What is the extent of return to the original state called?
According to the text, what type of disturbances do not produce a change in the system?
According to the text, what type of disturbances do not produce a change in the system?
In the context of disturbances, what type are those that produce a permanent alteration in the system?
In the context of disturbances, what type are those that produce a permanent alteration in the system?
"Recent reviews of stability emphasize that proper scales of time and space are critical to an evaluation of ecosystem responses to disturbance." What aspect of measurement does this statement emphasize?
"Recent reviews of stability emphasize that proper scales of time and space are critical to an evaluation of ecosystem responses to disturbance." What aspect of measurement does this statement emphasize?
"Traditionally disturbances have been considered as infrequent events that disrupt the equilibrium state of an ecosystem by producing abrupt changes in structural or functional characteristics." Which term reflects this concept?
"Traditionally disturbances have been considered as infrequent events that disrupt the equilibrium state of an ecosystem by producing abrupt changes in structural or functional characteristics." Which term reflects this concept?
"The concept of resistance implies that systems may not change when exposed to some disturbances." What term is associated with this concept?
"The concept of resistance implies that systems may not change when exposed to some disturbances." What term is associated with this concept?
