Rachel Carson National Wildlife Refuge

The Rachel Carson National Wildlife Refuge, established in 1966, aims to protect salt marshes and estuarine habitats for migratory birds. Salt marshes, vital ecosystems where rivers meet the sea, are dominated by grasses like cordgrass and salt hay. These areas support diverse wildlife and are highly productive. However, they face threats from historical modifications, climate change, and human activities. Conservation efforts focus on restoring degraded marshes and enhancing their resilience. The refuge encourages responsible behavior to protect these sensitive ecosystems and emphasizes the importance of maintaining a sense of wonder about the natural world.

When was the Rachel Carson National Wildlife Refuge established?

• 1986

• 1976

• 1966

• 1956

What is the primary purpose of the Rachel Carson National Wildlife Refuge?

• To conduct scientific research

• To protect salt marsh and estuarine habitats for migratory birds

• To promote tourism

• To protect endangered species

What are salt marshes primarily dominated by?

• Trees

• Algae

• Grasses

• Shrubs

Which grass grows at lower elevations in the low marsh?

• Bluegrass

• Cordgrass

• Reed grass

• Salt hay

How often do spring tides flood the high marsh in Maine?

• 5 to 8 times a month

• 20 to 25 times a month

• 15 to 18 times a month

• 10 to 12 times a month

Which of the following is NOT a benefit provided by salt marshes?

• Producing fossil fuels

• Trapping sediments

• Cycling nutrients

• Controlling floods

What human activity has led to the reduction of tidal flow to upstream areas?

• Hiking

• Bird watching

• Road crossings

• Fishing

What is one of the major threats to salt marshes due to global climate change?

• Sea level rise

• Increased rainfall

• Increased sunlight

• Decreased temperatures

What should you do to help protect salt marshes when visiting?

• Use fertilizers extensively

• Feed the wildlife

• Dispose of litter properly

• Plant non-native species

What did Rachel Carson emphasize besides keeping the environment safe from pollutants?

• Urban development

• Sharing our joy in the living planet

• Technological advancement

• Economic growth