Deciduous woodlands adaptations (Edexcel GCSE Geography A): Flashcards
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Biodiversity level in deciduous woodlands
Biodiversity level in deciduous woodlands
Moderate - fewer than rainforests, more than deserts/tundra
Main limiting factor for biodiversity in winter
Main limiting factor for biodiversity in winter
Reduced food production when photosynthesis slows
How do seasonal changes support biodiversity?
How do seasonal changes support biodiversity?
Create varied conditions different species exploit at diff times
Woodland structure feature supporting biodiversity
Woodland structure feature supporting biodiversity
Multiple layers provide diverse habitats and niches
How birds like swallows survive winter
How birds like swallows survive winter
Migration to warmer regions with abundant food
How squirrels survive winter food scarcity
How squirrels survive winter food scarcity
Food storage/caching - bury nuts in autumn
How hedgehogs survive winter
How hedgehogs survive winter
Hibernation - slow metabolism, deep sleep, use stored fat
Why deciduous trees drop leaves in autumn
Why deciduous trees drop leaves in autumn
Reduces water loss through transpiration in winter
Second reason for dropping leaves
Second reason for dropping leaves
Saves energy when photosynthesis is less efficient
Branch pattern of deciduous trees
Branch pattern of deciduous trees
Spread wide to maximise sunlight capture
Leaf shape adaptation in deciduous trees
Leaf shape adaptation in deciduous trees
Broad and thin to maximise surface area for light
Root system adaptation in deciduous trees
Root system adaptation in deciduous trees
Large, deep networks for stability and water/nutrient access
What is the 'winter bottleneck'
What is the 'winter bottleneck'
Period when food limited & energy demands for warmth highest
What triggers leaf drop in autumn
What triggers leaf drop in autumn
Shorter daylight hours and cooling temperatures