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SEED DISPERSAL (4 methods (SPLITTING ACTION (Fruit must be dry. It will…
SEED DISPERSAL
To solve OVERCROWDING
Overcrowding causes the plants to compete for resources.
E.g light, oxygen, carbon dioxide, water, minerals, space
4 methods
WIND
Have wing-like structure
Trap air causing them to float
E.g angsana, shorea
Tiny seeds
Feather-like structure
e.g dandelion
Relationship: bigger wing-like structure = float longer = travel further
WATER
Ability to float
Fibrous Husk
Trap air
Waterproof
Waxy surface
E.g coconut, pong pong
ANIMALS
Edible (not poisonous)
Juicy & Tasty
Attractive colour
Scent
Inedible (cannot be eaten)
Seeds are small / tiny
hook-like structure
cling on animal's fur
e.g love grass
Fruits are eaten and disposed a distance away
SPLITTING ACTION
Fruit must be dry. It will start to lose moisture
Seeds are in pods
line of weakness
e.g rubber fruit