Topic > The Importance of Seed Dispersal - 896

Seed dispersal is the transporting or moving of seeds away from the parent plant to help prevent overcrowding (if this happened the plants would not have enough food and light to survive in the area ) and help create new colonies. Thus giving the seed the best chance to germinate in a new location away from the mother plant and hopefully start new colonies. Because plants have limited mobility, they rely on a variety of dispersal vectors to transport their seeds via abiotic (non-living) and biotic (living) vectors. There are five main methods of seed dispersal: animal, gravity, wind, ballistic, and water (1). Fire is also another way to disperse seeds, but it is not as common as the other methods. Biotic modes would be animals or Homo sapiens (humans). Animals disperse seeds (zoochory) in many ways because in this way plants take advantage of animals, and their ability to move, to help them disperse their seeds away from the parent plant. One way for dispersal to occur is if the animal were to ingest the seed, then the seed would be excreted in the feces (endozoochory) (2) such as strawberries, raspberries, and nuts. Another could be for the seeds to become entangled in the animal's fur or feathers and get carried to another location, where they will eventually fall off or be wiped off the animal, such as goose grass or sticky grass (3). Some animals also buried seeds with the intention of returning later to retrieve them. Like a squirrel with acorns, but it doesn't always happen that they return (4). Humans would aid seed dispersal by planting the seeds or attaching them to clothing and shoes. Humans used to be classified as seed-dispersing animals, however now they can sometimes be s... middle of paper... s. If they fell where the mother plant is located, severe overcrowding would occur, meaning the seeds would not have enough sunlight, water, or space to grow and develop properly. If all members of a species were crowded together in one area, this would make them more susceptible to risks such as fire or disease. By dispersing the seeds over a larger area, the chance of this happening would be greatly reduced (11). For seed dispersal it is necessary to ensure that as many seeds as possible have the opportunity to grow and develop adequately, so that they can then develop their own seeds (8). The loss of herbivores such as the wild ox (bos primigenius) in the Caledonian forest has deprived that area of ​​an important dispersal agent, but there are still other herbivores such as rodents that can still help maintain seed dispersal (11).