Dispersal moves seeds away from where they formed. Different structures can make different routes more likely: a broad wing interacts with moving air, a hook can attach to fur, and a buoyant covering can support floating. These are examples rather than rules for every species. Travelling somewhere is different from surviving or germinating there. Some fruit-eating birds carry seeds internally, later passing intact seeds away from the plant.
Plants, animals and ecosystems · Discover & try
How can a seed travel away from its parent?
Reading level 2 of 5 · DevelopingChange
Word help
dispersal
Movement away from the place a seed formed.
buoyancy
The support that can allow an object to float in a fluid.
Watch · Try · Explain
See how it works
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Selected dispersal mechanisms with imagined paths; no real travel distances or germination success are predicted.
What to look for
- Structures interact with carriers
- Several routes can exist
- Arrival does not guarantee growth
Explain what you noticed
A bird eats berries, then passes intact seeds in its droppings away from the plant. Which dispersal route does this show?
Keep this idea: Match a structure with a possible carrier, then distinguish travel from establishment.
Follow the sources
- U.S. Forest Service — Woody Plant Seed Manual: Seed Biology
- U.S. Forest Service — Seed Dispersal: Weed Wackers Educators Guide
- USDA Forest Service — Seed Dispersal by Animals
Source material checked 2026-10-28. Explanations and activities by Nepedia. Source links do not imply endorsement.
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