Nature's Tiny Farmers: How Insects Provide Pollination Services
A single honeybee colony can visit millions of flowers in one season, and according to USDA estimates, insect pollinators add about $15 billion in value to United States crops every year. Without insects doing this tiny, unpaid job, entire grocery store aisles — apples, blueberries, almonds, and more — would nearly disappear.
What You'll Learn
- Explain what pollination is and why plants need it - Identify at least three types of insect pollinators - Describe why farmers depend on pollination services - Observe real pollinators at work
What Is Pollination?
Flowers make a powder called pollen in a part called the stamen. For a plant to make seeds and fruit, that pollen has to travel to another part of a flower called the pistil. Insects do this job by accident — pollen sticks to their bodies while they're really just looking for sugary nectar to eat, and it rubs off on the next flower they visit.
Honeybees have tiny structures on their back legs called corbiculae, or pollen baskets, where they pack pollen into little golden balls to carry back to the hive.
Who Are the Pollinators?
Bees are the most famous pollinators, but they aren't alone. Butterflies like the monarch pollinate flowers while sipping nectar, and monarch caterpillars depend entirely on milkweed plants to survive. Moths pollinate at night. Beetles and flies pollinate too, especially flowers with strong smells that attract them.
Why Pollination Services Matter to Us
Some crops, like almonds in California, depend almost completely on insect pollination — without bees, there would be almost no almond harvest at all. Every February, beekeepers truck more than a million beehives into California's almond orchards just for pollination season, then move them to pollinate other crops later in the year. Farmers sometimes pay beekeepers to bring hives to their fields — that's what 'pollination services' means.
Match each pollinator to a fact about it.
Terms
Definitions
Drag terms onto their definitions, or click a term then click a definition to match.
Why do insects like bees end up pollinating flowers?
What does it mean when a farmer pays for 'pollination services'?
Pollinator Watch
Find a flowering plant outside (a garden, a park, or even a dandelion patch works). Watch it for 10 minutes and make a tally chart counting every insect visitor by type: bees, butterflies, flies, beetles, or other. Note what each insect seemed to be doing. Write one sentence describing which pollinator visited most often and guess why.
Planting native flowers and avoiding pesticides in a garden are two simple ways anyone can support pollinator populations.
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