Lec34_35_PollinationB_05D

Lec34_35_PollinationB_05D - Insects and Pollination B...

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Insects and Pollination B V Emphasis on agricultural crops Insect Approaches To Pollination Active - Collect pollen Benefit from pollen Specialized hairs and structures Specialized pollen and pollinating mechanisms Passive - Not adapted to collect pollen Browsers / nectar or pollen feeders Some plant adaptations (e.g., sticky pollen) “Accidental” pollination H Pollen-Collecting Structures Assorted combs, brushes, sweepers, and baskets. Crop collectors. Buzz pollination Many bees do this (but not honeybees) V
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Hairs Tarsal brush Pollen basket Pollen collection in honey bees How do they get all that sticky stuff back to the hive? H Economics of Insect Pollination [Agricultural Crops] On a worldwide basis - not very important Of ~ 300 plant species now grown for food, 12 furnish 90% of the food needs; most are grains which are wind or self-pollinated In the United States our diet is different
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This note was uploaded on 08/15/2011 for the course ENT 2004 taught by Professor Jrvoshell during the Spring '07 term at Virginia Tech.

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Lec34_35_PollinationB_05D - Insects and Pollination B...

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