Yosemite National Park Invasive Species - Homework Help

Yosemite National Park Invasive Plants
National Park Service

What's the Problem with Invasive Plants?
Invasive plants displace native plants by outcompeting them for water, light, nutrients, and space. As native plants are lost, native animals who rely on those plants for food and shelter are threatened. Invasive plants can also negatively affect ecosystems by changing fire intensity and frequency, soil moisture regimes, and by producing thickets of plants so dense that the stands are impassible for large animals.

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