Latest Trophic cascade Stories
Scientists studying seagrass beds in one of the largest estuaries in central California are crediting its recovery on the return of sea otters to the coastal region, according to new research published in this week’s edition of the Proceedings of the National Academy of Sciences.
A new investigation put in evidence the key role of cod as regulator of the whole Baltic Sea ecosystem.
The worldwide decline of top predators, or â€œconsumersâ€, such as wolves, sharks and lions, is threatening to drive other species to extinction, an international team of 24 scientists reported on Thursday.
A measure widely advocated as a means of assessing the health of marine ecosystems is an ineffective guide to trends in biodiversity, and more direct monitoring is needed, a new study has found.
The most widely adopted measure for assessing the state of the world's oceans and fisheries led to inaccurate conclusions in nearly half the ecosystems where it was applied according to new analysis by an international team led by a University of Washington fisheries scientist.
STONY BROOK, N.Y., July 9 /PRNewswire-USNewswire/ -- A compendium on trophic cascades and how they operate in the world's major ecosystems has been published for the first time.
A new analysis of the extinction of woolly mammoths and other large mammals more than 10,000 years ago suggests that they may have fallen victim to the same type of "trophic cascade" of ecosystem disruption that scientists say is being caused today by the global decline of predators such as wolves, cougars, and sharks.
New Cornell University evolutionary biology research shows how plants at the bottom of the food chain have evolved mechanisms that influence ecosystem dynamics as well.
Willow trees, riparian willow warblers and beaver dams once were bountiful in an area near the town of Banff, Alberta, Canada. But once wolves left this area, elk grew more plentiful, browsing heavily on young willows. Today, there is little trace of beavers, and sparrows have replaced the warblers in what is now a grassland meadow.
- totally perplexed and mixed up.