Seed%20dispersal

1
Seed dispersal

• How do plants reproduce?

2
Acorns fall from the tree and sprout

• If they are not destroyed by animals, white oak
  acorns can sprout rapidly after falling from the
  tree. 

3
Animal dispersal by hooked fruits

• Some species of plant use hooks on their fruits
  to attach themselves to the fur of mammals or
  feathers of birds

4
Animal burial

• Hard nuts are usually destroyed if chewed or
  eaten. 
• However, animals such as squirrels may store
  them to eat later and forget to go back to get
  them, giving them a chance to germinate. 
• On rare occasions, birds such as blue jays can
  transport acorns long distances.

5
Soft fruit dispersal

• Fleshy fruits
• The seeds of many plants are dispersed after
  passing through the digestive system of animals
  that have eaten the fleshy fruits. 

6
Wind dispersal

• Some plants, such as the dandelion, have seeds
  that act as parachutes, which are carried away by
  the wind

7
Plantlet reproduction

• Spider plants, amongst others, send out stems
  which produce plantlets, these baby plants then
  try to root themselves

8
Spinning dispersal

• Maple fruits are winged, two-seeded pods.  They
  spin like helicopters as they fall from the tree,
  providing a longer time for dispersal by wind.