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Zoophily information


A rufous hummingbird (Selasphorus rufus) is attracted to brightly colored flowers and assists the pollination of the plant.

Zoophily, or zoogamy, is a form of pollination whereby pollen is transferred by animals, usually by invertebrates but in some cases vertebrates,[1] particularly birds and bats, but also by other animals. Zoophilous species frequently have evolved mechanisms to make themselves more appealing to the particular type of pollinator, e.g. brightly colored or scented flowers, nectar, and appealing shapes and patterns. These plant-animal relationships are often mutually beneficial because of the food source provided in exchange for pollination.

Pollination is defined as the transfer of pollen from the anther to the stigma.[2] There are many vectors for pollination, including abiotic (wind and water) and biotic (animal). There are benefits and costs associated with any vector. For instance, using animal pollination is beneficial because the process is more directed and often results in pollination. At the same time it is costly for the plant to produce rewards, such as nectar, to attract animal pollinators. Not producing such rewards is one benefit of using abiotic pollinators, but a cost associated with this approach is that the pollen may be distributed more randomly. In general, pollination by animals occurs after they reach inside the flowers for nectar. While feeding on the nectar, the animal rubs or touches the stamens and is covered in pollen. Some of this pollen will be deposited on the stigma of the next flower it visits, pollinating the flower.[3]

  1. ^ Vogel S (1998). "Floral biology". In Kubitzki K, Huber H (eds.). The families and genera of vascular plants. Vol.3. Flowering plants. Monocotyledons: Lilianae (except Orchidaceae). Berlin: Springer-Verlag. pp. 34–48. ISBN 3-540-64060-6. Retrieved 14 January 2014.
  2. ^ "Pollination". Dictionary.com. 1 December 2006.
  3. ^ "Biology of Plants: Pollination". Missouri Botanical Garden. 2006. Retrieved 7 November 2006.

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