Ads
related to: dispersal of seeds chart
Search results
Results From The WOW.Com Content Network
Epilobium hirsutum seed head dispersing seeds. In spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. [1] Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living vectors such as birds.
The patterns of seed dispersal are determined in large part by the specific 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.
Ants disperse seeds in fairly predictable ways, either by disposing of them in underground middens or by ejecting them from the nest. [2] These patterns of ant dispersal are predictable enough to permit plants to manipulate animal behaviour and influence seed fate, [13] effectively directing the dispersal of seeds to desirable sites. For ...
More than one dispersal vector (abiotic or biotic) is thought to be involved in the majority of seed dispersal events (on average 2.15 dispersal vectors in Dutch ecosystems). [2] Seeds may be transported in turn by various animal or abiotic mechanisms such as wind or water. [1] [3]
In leptosporangiate ferns, the fern catapults its spores 1-2 cm so they can be picked up by a second dispersal vector, often the wind. [4]Autochory is the dispersal of diaspores, which are dispersal units consisting of seeds or spores, using only the energy provided by the diaspore or the parent plant. [5]
Some seeds (e.g., pine) have a wing that aids in wind dispersal. The dustlike seeds of orchids are carried efficiently by the wind. Some seeds (e.g. milkweed, poplar) have hairs that aid in wind dispersal. [28] Other seeds are enclosed in fruit structures that aid wind dispersal in similar ways: Dandelion achenes have hairs. Maple samaras have ...