The structure of ecosystems Flashcards Preview

A level Geography - Ecosystems: change and challenge COPY > The structure of ecosystems > Flashcards

Flashcards in The structure of ecosystems Deck (4)
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1
Q

What does abiotic mean and what does it include?

A

The non-living, chemical and physical components of the ecosystem.
Climate - seasonal pattern of temperature and precipitation.
Soil characteristics.
Underlying parent rock.
Relief of the land.
Drainage characteristics.

2
Q

What are inputs?

A

Most important input is the energy from the sun - it drives the photosynthesis and enables plants to grow.
Others include animals that arrive from elsewhere, and water, transported into the ecosystem by precipitation/rivers.

3
Q

What are outputs?

A

Nutrients are transferred out of the system in a number of ways. Animals can physically move, water can move out in rivers, evapotranspiration, through flow and groundwater flow.

4
Q

What does biotic mean and what does it include?

A

The living environment:
Vegetation (living and decomposing).
Mammals, insects, birds and micro organisms.