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Showing 154 results for algae ...

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Scientists Tackle the Case of the Vanishing Seaweed at Channel Islands National Park

• Type: Article

Since the early 2000s, ecologists who monitor rocky intertidal ecosystems each year have noted declines in a key intertidal seaweed commonly called rockweed. Rockweed is considered a foundational species, meaning that its presence is so important that without it the entire ecosystem would change radically. At Channel Islands National Park, marine ecologists are working with local scientists to understand the best methods to restore rockweed.

How Alaskan Marine Ecosystems Responded to a Massive Heatwave

• Type: Article

A marine heatwave in the North Pacific had widespread, detrimental impacts on ecosystems and species. Why were some more resilient than others?

Acadia National Park

A New Way to Gauge Risk of Toxic Blooms in a National Park

• Type: Article

Harmful algal blooms endanger drinking water sources and aquatic life but are notoriously hard to study and manage. We created a “scorecard” to assess the likelihood of toxic blooms. It can help water managers focus on the most effective actions.

Boreal shrub and tree expansion promotes soil warming

• Type: Article

Read the abstract and get the link to an article published in Environmental Research Letters that connects vegetation shift to warming Arctic and Boreal soils under vegetation. Kropp, H., M. M. Loranty, S. M. Natali, A. L. Kholodov, A. V. Rocha, … J. A. O’Donnell … et al. 2020. Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems. Environmental Research Letters.

Dry Tortugas National Park

Bird Key Wreck

• Type: Place

The Bird Key Wreck, also known as the Brick Wreck.

Acadia National Park

Applying Common Language to Create Seafloor Maps at Acadia

• Type: Article

It’s the first detailed application of the Coastal and Marine Ecological Classification Standard (CMECS) in rocky intertidal areas of Maine.

“Cracking the code” on mercury bioaccumulation

• Type: Article

Read the abstract and get the link to a published paper on a model to predict mercury risk park waterbodies: Kotalik, C.J. et al. 2025. Ecosystem drivers of freshwater mercury bioaccumulation are context-dependent: insights from continental-scale modeling. Environmental Science & Technology. DOI: 10.1021/acs.est.4c07280

Great Smoky Mountains National Park

Mouse Creek Falls

• Type: Place

A scenic 41-foot (12.5 m) waterfall that cascades into Big Creek.

Yellowstone National Park

Liberty Pool

• Type: Place

Liberty Pool is a hot spring in the Upper Geyser Basin

I Didn't Know That!: Harmful Algal Blooms

• Type: Article

This summer, there may be a hidden danger lurking in the water. No, we're not talking about sharks or gators. This foe is a little more unsuspecting - it's algae. Harmful algal blooms can be a series threat to your health and the health of your pets. Find out what to look for, how to stay safe, and how to help prevent harmful algal blooms in your community.

Cohesion among canids: Insights into social behavior

• Type: Article

Read the abstract and get the link to a study that looks at social behavior among canids worldwide: Benson, J., D. Keiter, P. Mahoney, B. Allen, L. Allen, B. L. Borg,… K. Joly, … M. Sorum, et al. 2024. Intrinsic and environmental drivers of pairwise cohesion in wild Canis social groups. Ecology: e4492.

Homestead National Historical Park

Ephram Smith

• Type: Person

Ephram Smith, Jr.'s Homestead application # 25026 was recorded on December 11, 1890, in the Register of Land Office by J.H. Bingham. According to his land entry papers, his homestead was located in the SE¼ of NE ¼ of Section 14, S ½ of NW ¼, NE ¼ of SW ¼ of Section 13, Township 3N of Range 20E in Coffee County, AL. His homestead consisted of 138.57 acres. The required filing fee of $13.50 was also recorded on December 11, 1890, at the Receiver’s Office.

Yellowstone National Park

Orange Spring Mound

• Type: Place

Yellowstone National Park

Norris Geyser Basin Trails (Cistern Spring Junction)

• Type: Place

Norris Geyser Basin is one of the hottest and most acidic of Yellowstone's hydrothermal areas. It is outside of the most recent Yellowstone caldera, but inside the first and largest caldera. It sits on the intersection of three major faults and is a very active earthquake area.Each year, new hot springs and geysers appear while others become dormant. Geologic events trigger many of these changes. Even small earthquakes can alter hydrothermal behavior. Clear pools become muddy

Yellowstone National Park

Morning Glory Pool

• Type: Place

A favorite destination in the Upper Geyser Basin

Yellowstone National Park

LeHardys Rapids

• Type: Place

Canyonlands National Park

Mesa Arch: Keeping it Together

• Type: Place

Blue Ridge Parkway

Sliding Rock

• Type: Place

This popular swimming hole is a short drive off the Blue Ridge Parkway on US 276 South. It provides is a cool, refreshing oasis from the hot summer sun.

Blue Ridge Parkway

Second Falls

• Type: Place

Second Falls is one of two waterfalls that you can hike to at Graveyard Fields. This short, relatively easy hike makes it a popular destination in the summer as visitors flock to this high elevation mountain stream.

Blue Ridge Parkway

Moore Cove Falls

• Type: Place

Moore Cove Falls is a short drive from the Blue Ridge Parkway in the Pisgah National Forest. It is a less crowded, easy waterfall hike that is beautiful year round.