Part IV Seed Dispersal Flashcards
What is seed dispersal?
The movement of seeds away from the parent plant.
Why is seed dispersal important?
Reduces competition, promotes colonization.
Name three methods of seed dispersal.
Wind, water, and animal dispersal.
How does wind dispersal occur?
Seeds are carried by air currents.
What plant adaptations promote wind dispersal?
Wings, plumes, lightweight structures.
Describe water dispersal.
Seeds float and travel via water currents.
What plant characteristics support water dispersal?
Waterproof or buoyant seed coats.
What is animal dispersal?
Seeds attach to or are eaten by animals.
How do animals contribute to seed dispersal?
Seeds are carried or spread through animal feces.
What role do birds play in seed dispersal?
They eat fruits and disperse seeds in droppings.
Why is long-distance seed dispersal beneficial?
Expands the plant’s growing range.
How do seeds attach to animal fur for dispersal?
Seeds have barbs or hooks for attachment.
What is the effect of animal digestion on seeds?
Some seeds pass through animals undigested
How does water dispersal protect seeds from dehydration?
Protects seeds from dehydration.
What are the advantages of wind dispersal?
Spreads seeds over long distances.
What is a disadvantage of wind dispersal?
Unreliable dispersal patterns.
How does animal dispersal increase genetic diversity?
Enhances plant survival and adaptation.
What happens when seeds are not dispersed?
Overcrowding and competition.
How does seed dispersal prevent overcrowding?
Reduces competition among offspring.
Why is seed dispersal vital for plant survival?
Allows colonization of new areas.
