define dispersed by birds
Answers
Answer:
Three Kinds of Dispersal Leading to Range Expansion
Jump Dispersal.
Diffusion.
Secular Migration.
Explanation:
Some common synonyms of disperse are dispel, dissipate, and scatter.
Seed Dispersal by Animal and Birds
There are different ways in which animals and birds disperse the seeds.
Few animals and birds are attracted to bright colourful fruits. They eat the entire fruit and only the juicy part is digested by their system and the seed are excreted out in the form of their dropping, which forms into new plants. Blackberry, cherry, tomato and apple seeds are dispersed in this way.
A few species of squirrels collect nuts from different plants like acorns and bury them under the soil as they store food for the winter season and often forget the place where they have previously buried them and the seeds grow into new trees.
There are a few plants which bear seeds with hooks. Burdock plant is an example of this type of plant species. The seed of these plants catches on the fur of animals and are carried away to different places, far from their parent plants.
Dates, rambutan, sea grapes, sea holly, tamarind, raspberry, sunflower, tomatoes are a few examples of plants whose seeds are dispersed by animals and birds.
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Seed dispersal is the movement, spread or transport of seeds away from the parent plant. Plants have limited mobility and rely upon a variety of dispersal vectors to transport their propagules, including both abiotic vectors such as the wind and living (biotic) vectors like birds. Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. The patterns of seed dispersal are determined in large part by the dispersal mechanism and this has important implications for the demographic and genetic structure of plant populations, as well as migration patterns and species interactions. There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus. Dispersal involves the letting go or detachment of a diaspore from the main parent plant.