125 resources and 2 collections matched your query.
Library of 3383 accessible STEM media resources.
Showing resources 21 to 40 of 125
Select a resource below to get more information and link to download this resource.
Water fleas are crustaceans, and they are the foundation for the web of life in water ecosystems. They are the most plentiful food source for other water ecosystem organisms. One of nine segments in a series, with all nine available on a DVD.
(Source: DCMP)
Sean Carroll, professor at University of Wisconsin-Madison, discusses the delicate balance of ecological systems. He explains how one seemingly minor change in one species can upset an entire ecosystem. Part of the "Ask a Scientist" series.
Currents in the Pacific Ocean have brought derelict fishing nets and gear to the waters around the Hawaiian islands. These nets are a safety hazard to ships and cause extensive damage to the ecosystem by snagging on coral reefs, entangling wildlife, and polluting shorelines. Instead of adding these nets to already congested landfills, Hawaii’s multi-partner marine debris group came up with a unique program to downcycle this marine debris into usable electricity.
Journey through the marine ecosystem of Monterey Bay, California, where a giant kelp forest hosts one of the most diverse marine ecologies in the world. The secret to the balance of this ecosystem is a keystone species: the sea otter. Part of the "Nature's Microworlds" series.
What can scientists learn from dissecting owl pellets? Host Emily Graslie visits with paleontologist Matt McDowell, and they discuss how owl pellets can be used by scientists to learn about certain aspects of an ecosystem. Part of "The Brain Scoop" series.
Biodiversity, or biological diversity, refers to the variety of plants, animals, and microorganisms that exist. The biodiversity of an environment is important because it helps keep the environment in a natural balance. An ecosystem which is species-rich is more resilient and adaptable to external stress than one in which the range of species is limited. Part of the "Biology" series.
What is happening with New Zealand forests? A team of University of Colorado fire scientists dig deep into the forests of New Zealand to find clues about past wildfires. They also hope their discoveries will reveal how to protect the fragile ecosystems in the future. Part of WildFIRE PIRE series.
The American South is home to some of the world’s most spectacular ecosystems, from coral reefs to salt water marshes. These two national monuments are underwater paradises and support a diverse and complex system of plant and animal life.
Explores the Olympic Peninsula of Washington State which has a greater variety of habitats than anywhere else in the world. Introduces its abundant plant and animal life and explains the delicate balance between them. Considers the importance of water and rainfall, from the temperate rain forests at the coast, to the lowland forests, mountain forests, and glaciers.
Kelp forests can be seen along much of the West Coast of North America. NOAA scientists study kelp forests by visiting the same locations over and over to assess the presence and abundance of a variety of organisms. Monitoring allows marine scientists to determine if the kelp forest is changing over time and to identify the cause of those changes, whether natural or human. Healthy kelp forests maintain the existence of thousands of plants, animals, and fish stocks. All of these require a thriving ocean ecosystem.
The area of Southern Washington State around the Mount St. Helens Volcano has been nearly devoid of life since the 1980 eruption – making it a biology lab like no other as scientists observe it springing back to life. The regenerating ecosystem offers biologist John Bishop of Washington State University in Vancouver a chance to study what happens as the mountain springs back to life. Bishop and his team are learning that recovery of an ecosystem is unpredictable and fragile, particularly by observing the impact of a small invader species insect from the weevil family.
Anyone who has ever driven in freezing rain knows all too well the potential hazards of an ice storm. These powerful winter weather events are also capable of catastrophic impacts on forest ecosystems. Syracuse University bio-geochemist Charley Driscoll and U.S. Department of Agriculture (USDA) Forest Service ecologist Lindsey Rustad are part of a team to monitor how a forest ecosystem responds to and recovers from ice storms. Part of the “Science Nation” series.
One of the areas that is most sensitive to climatic change is human health. Climate change affects human health in numerous ways. Some are immediate, and others may not manifest until future generations inhabit earth. Global areas have already begun to suffer the effects of ecosystem alterations and limited water sources. These situations also impact crop production and food distribution. Researchers also predict an increase in the number of displaced persons as the planet warms and sea levels begin to rise. Chapter 10 of Air: Climate Change Series.
The estuary is part of the Plum Island Ecosystems LTER (Long Term Ecological Research). The LTER Network was created by the National Science Foundation (NSF) in 1980 to conduct research on ecological issues that can last decades and span huge geographical areas. Biogeochemist Anne Giblin, of the Marine Biological Laboratory, is leading a team of researchers who are studying the Plum Island salt marshes to determine how this 2,000-year-old ecosystem is holding up under climate change, land use changes, and sea-level rise. Part of the National Science Foundation Series “Science Nation.”
The intertidal ecosystems lining Florida’s Gulf coast are economically important, but in decline. Dr. Randall Hughes and Dr. David Kimbro, two Florida State University marine ecologists, hope that by studying them, they might gain knowledge that will help preserve salt marshes, oyster reefs, and seagrass beds. Part of the series "In The Grass, On The Reef."
Molecular biologist Scott Santos and his team at Auburn University are studying an unusual and endangered ecosystem in Hawaii called Anchialine pools. A threatened ecosystem, Anchialine pools are inland lava depressions found near the ocean that feed off fresh water aquifers. Little is known about the creatures and plants that live in these brackish waters, but a number of the lava pools are being destroyed by invasive species and development. With support from the National Science Foundation, Santos and his team captured video and photographs of this unique habitat during a two month field study. He hopes his research will help save the pools before they totally disappear. One of the most famous creatures in the Anchialine pools is a legendary tiny red shrimp.
This UNC TV segment explores the intricate interactions between organisms which are the building blocks of the freshwater ecosystem. These include the relationships between insects and the environment, predator and prey, water and organic waste, and nutrients and underground channels.
Societal change and growth is impacting the ocean ecosystem. One of these consequences is the rapid decline and death of coral reefs. Part of the "Coral Comeback" series.
Scientists are conducting land surveys in the Southern Appalachians to determine just how healthy the land and water is. In their research, they discover that the smallest creature living in the area, the salamander, provides the most information and are important to the health of the ecosystem.
Join a group of international fire scientists and students as they venture deep into Tasmania's Cradle Mountain National Park to better understand the role of fire in the ecosystem. Part of the WildFIRE PIRE series.
Showing collections 1 to 2 of 2
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Biology related concepts
A collection containing 59 resources, curated by Benetech
