Search results
Results from the WOW.Com Content Network
Ornithophily. Ornithophily or bird pollination is the pollination of flowering plants by birds. This sometimes (but not always) coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics, Southern Africa, and on some island chains. [1]
Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds. [ 1 ] Pollinating agents can be animals such as insects, for example beetles or butterflies; birds, and bats; water; wind; and even plants themselves.
Plants fall into pollination syndromes that reflect the type of pollinator being attracted. These are characteristics such as: overall flower size, the depth and width of the corolla, the color (including patterns called nectar guides that are visible only in ultraviolet light), the scent, amount of nectar, composition of nectar, etc. [2] For example, birds visit red flowers with long, narrow ...
Fruit tree pollination. A European honey bee pollinates a peach flower while collecting nectar. Pollination of fruit trees is required to produce seeds with surrounding fruit. It is the process of moving pollen from the anther to the stigma, either in the same flower or in another flower. Some tree species, including many fruit trees, do not ...
Pollination syndrome. Pollination syndromes are suites of flower traits that have evolved in response to natural selection imposed by different pollen vectors, which can be abiotic (wind and water) or biotic, such as birds, bees, flies, and so forth through a process called pollinator-mediated selection. [1][page needed][2][page needed] These ...
Pollination mechanisms are the fruit of such co-evolution. In general, such mechanisms are beneficial to both parties: the pollinating agent obtains nectar from the orchids' flower and the orchids in turn benefit from the transfer of pollen from one flower to another. However, in many cases the attraction of pollinators to orchids is due to ...
Hummingbirds are the smallest mature birds, measuring 7.5–13 cm (3–5 in) in length. The smallest is the 5 cm (2.0 in) bee hummingbird, which weighs less than 2.0 g (0.07 oz), and the largest is the 23 cm (9 in) giant hummingbird, weighing 18–24 grams (0.63–0.85 oz).
Open pollination. Detasseling corn (maize) plants from one variety in a field where two varieties are planted. The male flowers are removed so that all seeds are hybrids sired from the second variety. " Open pollination " and " open pollinated " refer to a variety of concepts in the context of the sexual reproduction of plants.