BIOL 1902 Lecture Notes - Lecture 21: Personal Flotation Device, Hitchhiking, Working Animal
20 Apr 2016
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Physical protection the seed must be protected until it is ready for dispersal. Scaly cones - physical protection, acorns - seed inside. Chemical protection unripe berries are protected with bitter terpenoids and aposematic colouration seeds cab also be protected chemically. Blueberries, eat the ripe one taste better and sweet the unripe one it would taste bitter so. Pine cone is pretty gummy and this is because it is full of resin also have terpenoids. Milkweed seeds are protected by the pod full of cardiac glycosides (terpenoids) Plants in open habitats such as open fields use wind. Name for wind dispersal (pollination by the wind is called anemophilly) anemochory. Dandelion uses this, and they make small, lightweight seeds. Little tiny seeds with a parachute to get blown by the wind can be flown dozens, hundreds or thousand km of the wind (less common) No solution is perfect - if you land in the water, parking lot your direction of dispersal is.
