Taiga Flashcards
Where is the taiga
North America and Eurasia
Taiga climate
It is the largest biome in Europe
Also known as boreal
Long cold winters at -40°
Short summers with highs of 16°
Animal adaptations
Bears- have a layer of fat that keeps them warm, they hibernate, fur is water repellent and claws for digging the frozen ground
Hare- fur is camouflage, and thick for cold weather
Fast to run away from predators
Plant adaptations
Lichens- photosynthesise in low temperatures
Absorb water from a saturated atmosphere
Thick layer of thallus
Evergreen trees
Photosynthesis with limited light
Needles leaves -small surface area less moisture loss
Conical shape- stability
Roots spread far for water and for more stability
Direct threats
Oil fields
Deforestation
The fact that it is large and out of the way means we don’t notice it as much as the rainforest
Indirect threats
Pests
Wildfires
Acid rain
Nutrient cycle of the taiga
Smaller amounts of decay because chemical weathering is limited by cold weather
Nutrients are in litter =biggest store
Biomass is small because trees only grow for some months a year
James Bay HEP
Quebec
16500 MW of electricity
11000km2 forest flooded
Mercury leaks
Pollution
Athabaskan tar sands
Could hold 1.7 trillion barrels of oil
Underneath the taiga in Canada
Deforests taiga and strip mining
Toxic waste
Water usage