The five most common methods of seed dispersal in the plant kingdom are:
- wind (anemochory): tumbleweeds, dandelions, maples
- animals:(epizoochory) externally - burs / (endozoochory) internally - fruits
- water (hydrochory): aquatic-water lily/terrestrial-mangrove trees
- gravity (barochory): apples, coconuts
- ballistic (ballochory): impatiens, geraniums
As far as which one of these five is the most common, this site says that animal dispersal is more common than wind but nothing in relation to the other methods listed above. Each method likely is most common in it's most well suited niche, but which one is the most common (in the widest range of species) overall?