ecosystems Flashcards
what is an ecosystem?
a natural system made up of living things and their environment
what is a biome?
a global scale ecosystem
what is the earth distribution of tropical rainforest biomes?
they are 6% of earth’s biomes
found on the equator
what are the four layers in a tropical rainforest
forest floor
under-canopy
canopy
emergent
how are drip tips adapted to their surroundings
they have long leaves so can shed water
how are lianas adapted to their surroundings?
they are vines and climb up trees to reach the sun
how are buttress roots adapted to their surroundings?
they are big, strong roots which support all big trees
how are epiphytes adapted to their surroundings?
they are small plants
they grow on tree branches and have access to water, nutrients and light
what are some threats to rainforests
deforestation
bushmeat trade
palm oil industry
logging
agriculture
mining
what are three impacts of deforestation
extinction risk because of habitat destruction
the rainforests absorb C02 so there is not as much absorption
people rely on the rainforest