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Keystone Species and Their Role in Ecosystems

This video presents examples of keystone species and the important role they play in their ecosystems.

Prairie Dogs: Keystone species

Whether you like it or not, prairie dogs are keystone species of prairie ecology. In this video Patrick talks about some of the flora and fauna that are asso...

Learn Biology: Keystone Species vs Indicator Species

Check out Bas Rutten's Liver Shot on MMA Surge: http://bit.ly/MMASurgeEp1 Mahalo biology expert Mary Poffenroth discusses Keystone Species vs Indicator Speci...

Keystone Species

Science Help at Brightstorm! http://brightstorm.com/science An explanation of keystone species.

Wetlands, Beavers, and Keystone Species

Beavers are keystone species that help form wetlands which impacts many other plants and animals. Join Cornell University Naturalist Outreach students to bet...


055 - Biodiversity Paul Andersen explains the importance of biodiversity. He starts by describing how biodiversity can be species, genetic or ecosystem diver...

Sea Otters: A keystone species

The recent shooting of a female sea otter in Morro Bay, California prompted me to spend a bit of time with these animals whose numbers have dropped very low,...

A Keystone Species

Keystone Species


Keystone Species

Project for our AP Biology class on keystone species. Lebanese Blonde - Thievery Corporation Faxing Berlin - DeadMau5 Digital Love - Daft Punk.

52894 videos foundNext > 

112 news items

Australian Geographic (blog)
Tue, 09 Sep 2014 21:58:28 -0700

While all animals are important to an ecosystem, 'keystone' species are particularly vital because of the fundamental role they play in the ecosystems to which they belong. These keystone species are often top predators such as sharks, because of the ...

The Guardian

The Guardian
Fri, 19 Sep 2014 03:00:14 -0700

Trees could be helped further by returning wolves and other top predators to Britain, Monbiot says, because of the knock-on effects of such “keystone” species. One of the most famous case studies is the return of wolves to Yellowstone national park in ...
KPLU News for Seattle and the Northwest
Thu, 18 Sep 2014 17:45:00 -0700

Starfish are a keystone species with a large role in the food web as many of them are voracious eaters. "They eat a ton of whatever it is they're eating," Harvell said. "In the case of the ochre star, they eat a lot of clams and muscles. And in the ...
West Seattle Blog (blog)
Thu, 18 Sep 2014 20:25:04 -0700

“They are in fact a keystone species vital to the ecosystem. When these species face an epidemic, we must engage the scientific community in an organized, rapid-response approach to determine what can be done to halt the damage to our oceans.
Elmira Star-Gazette
Thu, 18 Sep 2014 07:26:00 -0700

Frequently found along rivers and streams, the tree also plays a key role in moderating water temperatures, and reducing erosion and siltation. “Eastern hemlock is definitely a keystone species ecologically in New York,” Denham said in a statement ...
St. George Daily Spectrum
Fri, 12 Sep 2014 21:07:30 -0700

Because the prairie dog is a vital food base to many other species, the Fish and Wildlife service refers to it as a “keystone species.” Edgar said Fish and Wildlife placed the prairie dog on its list of threatened and endangered species because of the ...
Casper Star-Tribune Online
Wed, 10 Sep 2014 08:46:19 -0700

To set the record straight on how important these creatures are to the prairie ecosystem, Prairie Dogs are a Keystone Species which means they are an animal on which other animals in an ecosystem largely depend. As a Keystone Species they also have an ...
Santa Cruz Sentinel
Fri, 12 Sep 2014 16:38:54 -0700

The Southern Sea Otter is called a "keystone species" because it maintains offshore kelp forests by eating sea urchins, which otherwise eat kelp. Last year, the United States Geological Survey estimated that the sea otter population at 2,941, which is ...

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