How are populations affected by conditions in an ecosystem?Audio

The abundance of organisms in an ecosystem is dependent upon biotic (living) and abiotic (non-living) factors. Abundance and distribution are estimated using techniques such as transects and quadrats.

Part of Biology (Single Science)Living together - Food and ecosystems

Learn about the resources that plants and animals compete for and the factors that can change. Listen to the full series on BBC Sounds.

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