A drought reduces the availability of prairie grass, which serves as the main food source for deer. As the grass grows less due to decreased moisture, it can lead to malnutrition and a decline in the deer population. With insufficient food, deer may struggle to survive, reproduce, and maintain healthy population levels. This could also cause deer to migrate in search of better grazing conditions, potentially disrupting local ecosystems. Over time, the combination of reduced food resources and potential migration could significantly impact the deer population dynamics in the affected area.
Graphic Organizer Idea:
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Drought:
- Decreased rainfall
- Less soil moisture
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Prairie Grass Growth:
- Reduced growth
- Less food available
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Impact on Deer Population:
- Malnutrition in deer
- Decreased reproductive rates
- Potential migration to find food
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Eco-system Effects:
- Changes in predator-prey dynamics
- Impact on other species that rely on the same habitat
This overview illustrates the interconnectedness of drought, vegetation, and herbivore populations.