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In 2000, a council planted indigenous trees as part of a reforestation programme - Edexcel - GCSE Biology Combined Science - Question 4 - 2023 - Paper 2
Question 4
In 2000, a council planted indigenous trees as part of a reforestation programme. (a) Why were indigenous trees used instead of non-indigenous trees? A indigenous ... show full transcript
Worked Solution & Example Answer:In 2000, a council planted indigenous trees as part of a reforestation programme - Edexcel - GCSE Biology Combined Science - Question 4 - 2023 - Paper 2
Step 1
Why were indigenous trees used instead of non-indigenous trees?
Answer
Indigenous trees were chosen primarily because they will support more native wildlife (Option C). This choice is critical as indigenous species provide habitat and food for local fauna, promoting biodiversity and ecosystem balance.
Step 2
The animal biodiversity in this reforested area was measured from 2004 to 2017.
Answer
The data collected from the years 2004 to 2017 indicate the trends in animal biodiversity, highlighted in the chart. It is evident that despite fluctuations, the overall trend suggests a gradual increase in biodiversity, as indicated by the plotted points, culminating in point A being particularly notable due to its significant biodiversity score.
Step 3
Describe how to improve the accuracy of biodiversity measurement.
Answer
To enhance the accuracy of biodiversity measurements, the following steps should be considered:
- Sample other areas of the forest - Expanding the sampling regions allows for a more comprehensive understanding of species distribution across varying habitats.
- Use larger quadrats - This can capture a broader array of species and give a more accurate representation of the biodiversity present.
- Count or record the number and types of species within the quadrats - This detailed approach ensures that all species, including less abundant ones, are accounted for, thereby improving data accuracy.