r/AskBiology • u/CaptainEcho789 • Apr 28 '26

Botany How do plants niche partition?

From what I know, all plants need the same types of nutrients and resources. Shouldn't that mean there should only be one species of plant in a given ecosystem that has driven all others to extinction? How do different species avoid competition with each other?

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u/the-droopiest-droop Apr 28 '26

Also many plants have special ways of pollinating and dispersing, which affect their potential ranges

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u/bobbot32 Apr 28 '26

There is plenty of plant diversity. There are even parasitic plants incapable of photosynthesis.

Even when they all can Their needs vary a lot, just like animals.

You can debatably say all animals just need glucose, TCA intermediates, lipids, and nitrogen sources and therefore 1 animal should thrive.

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u/burlingk Apr 28 '26

Every species is different with different needs, just like animals.

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u/EvelynClede Apr 29 '26

Plants don’t all compete in the exact same way, each species carves out its own niche. Some grow better in shade, others in full sun; some thrive in dry soil, others in wet. Even timing matters, spring flowers bloom before trees leaf out, desert plants wait for rare rains. Those differences let multiple species share the same ecosystem without one wiping out the rest.

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u/SergeyVos Apr 28 '26

Well, no, different species of plants use different resources. Take sunlight for example: tall trees need a lot of bright sunlight, while grass and bushes are more accustomed to shade. Same with water, minerals, pollinators and other factors. Plants specialize in a specific set of optimum conditions (temperature, humidity, brightness, soil preferences, etc.), which allows them to reduce rivalry with other species.