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Date: Fri Feb 28 2003 - 14:43:05 EST
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If I remember correctly, a theory about how hummingbirds help "flowers"
(flowering plants) is as follows:
Bees are great pollinators, however they stick to a small range of activity
Hummingbirds have a greater range of activity (ie. their feeding
territories cover larger areas) therefore they help to increase the genetic
diversity of plants by cross-pollinating with plants from farther away
(in the surrounding environment) than bees would bother to. As a consequence, some plants have evolved flowers with characteristics that will attract hummingbirds, in order to acheive greater genetic diversity,
and consequently increased survival rates under extreme conditions.
Cross-pollination by hummingbirds should ultimately lead to greater
probability of offspring survival under Darwinian natural selection.
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- Previous message: by way of Journey North: "Challenge Question # 1"
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