Ecology And Conservation at University Of Exeter | Flashcards & Summaries

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Lernmaterialien für Ecology and Conservation an der University of Exeter

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Population Ecology

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Analyses the factors that affect population size and how and why it changes through time.

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Abiotic environment

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'The Elements' (not living)

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What is an example to explain how and why a population changes over time? 

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E.g., Aphids and parasitoid-> laying eggs within the aphid, larvae develop for
up to 10 days inside the aphid then will eat it way out of the aphid.
▪ Peaks in aphids and parasitoids are based
on seasonality and change annually, different
species will also be more prominent in some years and not others.


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Characteristics of Freshwater

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o Lakes 

o Wetlands / swamps 

o Rivers and Streams 

o Associated with all the terrestrial biomes (obviously less so with the drier ones) 

o Can vary greatly in physical and chemical characteristics

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Biotic environment

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organisms of the same species and of other species (living)


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Community Ecology

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Examines how interactions between species, such as predation and competition, affect community structure and organisation.

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Ecosystem Ecology

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Emphasizes energy flow and chemical cycling between organisms and the environment (community ecology + environment).

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Landscape Ecology


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Focuses on the factors controlling exchanges in materials, energy, and organisms across multiple ecosystems.

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Organismal Ecology

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Includes the subdiscipline of physiological, evolutionary, and behavioural ecology, is
concerned with how an organism’s structure, physiology and behaviour meet
challenges posed by its environment.

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How do Mountains affect precipitation levels? 

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Force clouds upwards causing rapid condensation of clouds (atmosphere is cooler) = high levels of precipitation.
▪ Wet on windward side

▪ Dry on leeward side 

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What is an example of landscape ecology? 

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▪ How do agricultural systems affect the environment?
▪ Fruit flies being a pest and how these are affected by natural predators from
the wilderness area.
• In natural vegetation-> all pupae have been predated.
• Border-> fewer pupae predated.
• In agricultural vegetation-> drastic drop in predated pupae.

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What determines where organisms live?

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Presence of competitors

Absence/presence of appropriate resources


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  • 4550 Karteikarten
  • 367 Studierende
  • 6 Lernmaterialien

Beispielhafte Karteikarten für deinen Ecology and Conservation Kurs an der University of Exeter - von Kommilitonen auf StudySmarter erstellt!

Q:

Population Ecology

A:

Analyses the factors that affect population size and how and why it changes through time.

Q:

Abiotic environment

A:

'The Elements' (not living)

Q:

What is an example to explain how and why a population changes over time? 

A:

E.g., Aphids and parasitoid-> laying eggs within the aphid, larvae develop for
up to 10 days inside the aphid then will eat it way out of the aphid.
▪ Peaks in aphids and parasitoids are based
on seasonality and change annually, different
species will also be more prominent in some years and not others.


Q:

Characteristics of Freshwater

A:

o Lakes 

o Wetlands / swamps 

o Rivers and Streams 

o Associated with all the terrestrial biomes (obviously less so with the drier ones) 

o Can vary greatly in physical and chemical characteristics

Q:

Biotic environment

A:

organisms of the same species and of other species (living)


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Q:

Community Ecology

A:

Examines how interactions between species, such as predation and competition, affect community structure and organisation.

Q:

Ecosystem Ecology

A:

Emphasizes energy flow and chemical cycling between organisms and the environment (community ecology + environment).

Q:

Landscape Ecology


A:

Focuses on the factors controlling exchanges in materials, energy, and organisms across multiple ecosystems.

Q:

Organismal Ecology

A:

Includes the subdiscipline of physiological, evolutionary, and behavioural ecology, is
concerned with how an organism’s structure, physiology and behaviour meet
challenges posed by its environment.

Q:

How do Mountains affect precipitation levels? 

A:

Force clouds upwards causing rapid condensation of clouds (atmosphere is cooler) = high levels of precipitation.
▪ Wet on windward side

▪ Dry on leeward side 

Q:

What is an example of landscape ecology? 

A:

▪ How do agricultural systems affect the environment?
▪ Fruit flies being a pest and how these are affected by natural predators from
the wilderness area.
• In natural vegetation-> all pupae have been predated.
• Border-> fewer pupae predated.
• In agricultural vegetation-> drastic drop in predated pupae.

Q:

What determines where organisms live?

A:

Presence of competitors

Absence/presence of appropriate resources


Ecology and Conservation

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