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Some of the most common threats to the national parks ecosystems include those to quality of air, quality and quantity of available water, and the parks native species. Prescribed fire is used to prevent uncontrolled forest fires and to reduce the growth of nonnative species.
Generic Resources and Threats to the Northern…
While Jewel Cave is currently in pristine condition there are several threats that could potential damage this site. These threats include the pollution of ground water that seeps into the cave at various points and visitor impacts.
Jewel Cave National Monument Threats and Features
The Niobrara River is where six major biomes converge to form a rich diversity of flora and fauna. Threats to the river arise from fire exclusion leading to the expansion of ponderosa pine into grassland area, changes in microclimates, the spread of invasive plants and the high volume of visitors during peak periods.
Niobrara National Scenic River Resources and…
Diagram showing resources of and threats to Harpers Ferry National Historical Park.
Diagram showing resources of and threats to…
Diagram showing features of and threats to C&O Canal.
Diagram showing features of and threats to C&O…
Diagram showing features of and threats to Catoctin Mountain Park.
Diagram showing features of and threats to…
Camping at Indian Cove in Joshua Tree National Park.
Camping
Hikers in Joshua Tree National Park.
Hiking in Joshua Tree National Park
Climbers in Joshua Tree National Park.
Climbers
Climbers in Hidden Valley of Joshua Tree National Park.
Climbers in Joshua Tree National Park
Climbers in Hidden Valley of Joshua Tree National Park.
Hidden Valley in Joshua Tree National Park
Joshua Trees (Yucca brevifolia), endemic to the Southwestern United States, near Hidden Valley in Joshua Tree National Park.
Joshua Trees (Yucca brevifolia)
Camping at Indian Cove in Joshua Tree National Park.
Campsite at Indian Cove
Hikers in Joshua Tree National Park.
Hiking in Joshua Tree National Park
Joshua Tree National Park near Indian Cove.
Joshua Tree National Park
View of Joshua Tree National Park near Indian Cove.
Joshua Tree National Park
Joshua Tree National Park near Indian Cove.
Joshua Tree National Park
Great blue heron in the Everglades at Shark Valley Visitor Center.
Great blue heron in the Everglades
View from the North Rim of the Grand Canyon National Park.
North Rim, Grand Canyon
Morning view from the South Rim of the Grand Canyon National Park.
South Rim, Grand Canyon
Illustration of solar panels on the roof of an industrial park.
Energy: solar panels 3
Shenandoah National Park, VA.
Acorns
Trail markers like this designate the Appalachian trail which makes up some of the trails in Shenandoah National Park. Shenandoah National Park, VA.
Appalachian Trail Marker
Big Meadows in Shenandoah National Park, VA.
Big Meadows
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