Seed Dispersal

What is Seed Dispersal?

• The moving of a plant’s seed away from the parent.

Why Seed Dispersal?

• To reduce competition

1. Wind Dispersal

• Seeds are very light• Shaped so they are

easily carried by the wind

• http://www2.bgfl.org/bgfl2/custom/resources_ftp/client_ftp/ks2/science/plants_pt2/wind.htm

2. Explosive

• Fruits suddenly burst open releasing the seeds

• Example: Peas• http://www2.bgfl.org/bgfl2/custom/resources_ftp/clien

t_ftp/ks2/science/plants_pt2/bursting.htm

3. Water

• Fruits are waterproof• Fruits can float• Ex: Coconuts• http://www2.bgfl.org/bgfl2/custom/resources_f

tp/client_ftp/ks2/science/plants_pt2/water2.htm

4. Hitchhiker

• Seeds have hooks on them and become attached to passing animals•http://www2.bgfl.org/bgfl2/custom/resources_ftp/client_ftp/ks2/science/plants_pt2/lift.htm

5. Animal Food

• Seeds are enclosed in a tasty fruit

• Animals eat the fruit • Seed passes through

unharmed• Ex: Blueberries• http://www2.bgfl.org/bgfl2/custom/

resources_ftp/client_ftp/ks2/science/plants_pt2/animal.htm

Other

• Drop and Roll• http://www2.bgfl.org/bgfl2/custom/

resources_ftp/client_ftp/ks2/science/plants_pt2/drop.htm

• Shakers• http://www2.bgfl.org/bgfl2/custom/

resources_ftp/client_ftp/ks2/science/plants_pt2/shakers.htm