1 Answer. Seed - Seed - Dispersal by animals: Snails disperse the small seeds of a very few plant species (e.g., Adoxa). Animals of all sorts and sizes help plants to disperse their seeds. and if u want, u can throw in the methods that plants use to disperse their seeds. 9 years ago. bio homework, please help! Water dispersal takes advantage of water currents to move buoyant seeds, like coconuts. Lv 7. Ramakrishnan, in Encyclopedia of Ecology (Second Edition), 2008 Introduction. Few animals and birds are attracted to bright colourful fruits. Seeds with attractive fruit or seeds. what are the advantages and disadvantages of animal dispersal? Chemicals in our native birds’ digestive systems help to weaken the tough coats around these seeds. Harold. Birds often fly far away from the parent plant and disperse the seeds in their droppings. Many intact fruits and seeds can serve as fish bait, those of Sonneratia, for example, for the catfish Arius maculatus. 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. Click on the links below to find out more. Directed dispersal may be seen in particular among animal- dispersed plants and in arid ecosystems or successional areas, but has been overlooked due to the lack of detailed data on seed shadows generated by particular species, and the fact that the alternative advantages of dispersal are not mutually exclusive. Seed size is an important factor. What are the advantages of seed dispersal? The 5 agents of dispersal are : wind, water, eaten by animals, carried by animals and explosion of fruits! Favorite Answer. There are different ways in which animals and birds disperse the seeds. Seed Dispersal by Animal and Birds . Dispersal of Seeds by Animals. Can grow more plants and help nature. Dispersal by animals or humans uses prickly pods to attach to the animal. Seed dispersal is the movement, spread or transport of seeds away from the parent plant. The coconut is a common but unusual seed that travels by water dispersal. Animal Dispersal Animal dispersal is useful to plants in grasslands where animals graze and inhabit. These seeds fall from the parent plant and can float for miles to the shores of other beaches. Seed dispersal is essential for plants as it improves the chances of the seeds being able to grow to the adult stage. Answer Save. 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 vectors like birds.Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. doesn't need to be detailed! You can also access an activity sheet related to seed dispersal, or try out the Ranger's Puzzle Page, with Wordsearch, Crossword and Ranger's bad joke!. The method they use depends on the type of seed. Over 70% of plants in our woody forests in New Zealand have fleshy fruit that is eaten by birds. They may be carried by wind, water or animals. The coconut has a wood-like outer shell that acts as a waterproof cover. Earthworms are more important as seed dispersers. Certain Amazon River fishes react positively to the audible “explosions” of the ripe fruits of Eperua rubiginosa. A.P. Predators target areas which have a high concentration of seeds as they have to spend a lesser amount of time and energy. To attract the animals and birds and encourage them to act as seed carriers, plants often surround their seeds with a brightly-coloured and sweet-tasting pulp. Relevance. Some plants even shoot the seeds out explosively. Animal dispersal.
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