What are the main ways that birds help to disperse the seeds in berries?
Even very small birds will fly miles and miles a day. When a bird eats seeds for any plant, it digests them. In doing so, it can carry seed miles away from where it was eaten, and once the bird excretes the seed, it has a chance to grow in another area.
Windblown Seeds Also by crossbills and other finches eating and passing through their digestive system. Other animals also help disperse one tree seeds such as squirrels. Even we as humans help disperse theses seeds as we use the pine cones for the sweet pine smell used in burning the cones (minus the seeds). Also children disperse the seeds playing 'helicopters' with these particular seeds in Scottish playgrounds.
Many plants grow fruit as that is their way of propagating. The seeds are in the fruit, or around the fruit. The fruit serves as a sweet tissue surrounding the seeds to help the seeds travel and get planted and grow. Animals are likely to pick fruit, and in doing so, they help to disperse the seeds.
Some birds help in the pollination process but most birds that eat the fruits with the seeds are not digested and when the birds fly to a distant palace the droppings help the seeds to emerge as new plants. Bird droppings are rich in phosphates & calcium essential for the growth & development of the trees. Some harmful insects and pathogens are picked by the birds from trees.
The job of a fruit is to contain the seeds which will produce the next generation. They generally help in some way to distribute the seeds so they have a better chance of growing. For instance berries are eaten by birds and pass through their digestive tracts so the seeds are deposited elsewhere (complete with a dollop of fertilizer!), dandelion fruits blow away in the wind and burdock fruits stick to the fur of animals…
Sugarberry is another name for hackberry which is a tree in the southeast US. The berries secrete a sweet sticky substance in the autumn that attracts gazillions of mealy-bugs. The mealy-bugs gorge themselves with the secretions and produce a dew-like substance of saccharine sweetness known as ghost rain. Many songbirds eat the sweetish fruits and help disperse the seeds.
As the seed develops after fertilization, the ovary changes into a fruit-a ripened ovary and other structures that enclose one or more seeds. Fruits are the means by which angiosperm seeds are dispersed. Animals that eat fruits help to disperse their seeds. Fruit nurishes the developing seeds inside the fruit and on maturity it helps in the dispersal of seeds.
They eat the fruit and...the seeds go out through the faeces. The faeces will seep into the ground, and the seed will remain there and the faeces will be nutrients for the growing seed. <OR> They walk past the plant, the seeds hooks hooking onto the animals coat. As they walk, they drop it around and therefore the seeds will not be too close to the mother plant.