Nutrient cycling and biodiversity in the taiga biome
Lesson details
Learning outcome
I can explain that, compared to tropical rainforests, the taiga has low productivity, a lower rate of nutrient cycling and supports lower levels of biodiversity.
Key learning points
- The taiga has a lower rate of productivity than tropical rainforests and less active nutrient cycling.
- The taiga support much lower levels of biodiversity than tropical rainforests.
Keywords
Biodiversity - a measure of how many different species live in an ecosystem
Nutrients - chemical substances found in all biotic features which are important for survival
Interdependent - when two or more biotic features like plants or animals depend or rely on each other to survive
Common misconception
Because the taiga is covered with trees it must have rich soils from all the leaf litter that accumulates.
Taiga soil is nutrient-poor due to slow decomposition in cold temperatures. This means nutrients stay locked inside the trees and litter, rather than entering the soil. As a result, the soil is often thin, acidic and nutrient-poor.
Teacher tip
Ensure students are familiar with the concept and features of nutrient cycle diagrams by comparing the nutrient cycle diagram for the taiga with one for a tropical rainforest and explaining the differences.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Where is the taiga biome mainly found?
Q2.What type of trees dominate the taiga biome?
Q3.What is the climate like in the taiga?
Q4.How do trees in the taiga adapt to cold conditions?
Q5.What kind of animals live in the taiga?
Q6.Why is deforestation a major threat to the taiga?
Assessment exit quiz
4 Questions
Q1.Match the keywords with their definitions.
a measure of how many different species live in an ecosystem
chemical substances found in all biotic features which aid survival
when two or more biotic features depend on each other to survive
Q2.The taiga has a __________ biodiversity compared to the tropical rainforest.
Q3.The taiga has a low biodiversity for several reasons:
long, freezing winters make it difficult for many species to survive
species have 3-5 months to grow and reproduce before winter returns
the soil lacks nutrients, making it hard for plants to grow
fewer plants = less food for herbivores, which limits predators
Q4.The nutrient cycle in the taiga is __________ due to cold temperatures and acidic soil. Most nutrients come from decomposing needles and limited organic matter.
To help you plan your 10 geography lesson on: Nutrient cycling and biodiversity in the taiga biome, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 10 geography lesson on: Nutrient cycling and biodiversity in the taiga biome, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 geography lessons from the Tropical rainforest and taiga biomes unit, dive into the full secondary geography curriculum, or learn more about lesson planning.