A-Level AQA Geography Local Ecosystems: What is a pioneer species?

A. F

Question

What is a pioneer species?

A. Following a drought, there is almost always significant die-back for most plant species. In these conditions, xerophytic pioneers colonise the area with limited competition.

B. Pyrophyes are adapted to cope with conditions associated with wildfire. Root systems can cope with loss of vegetation above ground. This vegetation quickly returns after fire.

C. Plant species which require very few nutrients to survive and will colonise bare rock. These species are the first to colonise following a volcanic eruption and succession follows.

D. Once human activity has altered the climatic climax vegetation, the species are quick to adapt to the niche which is created. Pioneers readily exploit the available environment.

What is a pioneer species? A - AQA - A-Level Geography - Question 6 - 2018 - Paper 1

Worked Solution & Example Answer:What is a pioneer species? A - AQA - A-Level Geography - Question 6 - 2018 - Paper 1

C. Plant species which require very few nutrients to survive and will colonise bare rock.

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