Drought, Tornadoes, Forest Fires

• Drought - What is a Drought?

  A period of time with very little to no rain.
• Droughts - What are the Negative Effects on Ecosystems?

  • Lakes, rivers, and aquifers lose water.
• Drought - What are the Negative Effects on Ecosystems?

  • Animals and plants without adaptations for drought will often die.
• Drought - What are the Negative Effects on Ecosystems?

  • Animals have to move or migrate to find water.
• Drought - What are the Negative Effects on Ecosystems?

  • Food webs suffer because of lost life and animal displacement.  
• Tornado - How is a tornado formed?


  • Tornadoes form when cold and warm fronts collide.
• Tornado - How do you identify a tornado?


  • They usually leave a narrow path of destruction.
• Tornado - What ecosystems do volcanoes affect most?

  • Great Plains/Grasslands
• Tornado - What are the Negative Effects on Ecosystems?

  • Plants and animals get killed by wind and debris.
• Tornado - What are the Negative Effects on Ecosystems?

  • Habitats are destroyed.
• Tornado -What are the Negative Effects on Ecosystems?

  • Vegetation gets damaged and uprooted.
• Tornado - What are the Negative Effects on Ecosystems?

  • Ecosystem food webs are disrupted.
• Tornado - What are the Negative Effects on Ecosystems?

  • Fires caused by broken power lines.
• Tornado - What are the Positive Effects on Ecosystems


  • Can clear out old vegetation allowing new stuff to grow beneath it.
• Wildfires - What are the Negative Effects on Ecosystems?

  • Air quality decreases making it difficult to breathe. 
• Wildfires - What are the Negative Effects on Ecosystems?

  • Harmful contaminants can pollute water sources. 
• Wildfires - What are the Negative Effects on Ecosystems?

  • Trees and vegetation burn and die. 
• Wildfires - What are the Negative Effects on Ecosystems?

  • Kills or displaces animals who live here.  
• Wildfires - What are the Positive Effects on Ecosystems

  • It clears the old trees to let new plants grow beneath. 
• Wildfires - What are the Positive Effects on Ecosystems


  • Gives nutrients to the soil. 
• Wildfires - What are the Positive Effects on Ecosystems


  • Germination of seeds. 
• Wildfires - What are the Positive Effects on Ecosystems


  • Remove invasive species and disease.