The otter-urchin-kelp interaction is an example of a trophic cascade. In this system, the otter (keystone species) increases the abundance of kelp (foundation species) by consuming urchins ...

Subalpine and boreal moorlands are ecosystems that contribute to climate stability by reducing excess carbon as well as ...

For example, a well documented mutualism ... The first is known as an interaction chain, in which a donor species affect the abundance of a transmitter and has an effect on a recipient.

This Issue focuses on ecological consequences of introduced species using several case studies - zebra mussels, brown tree snakes, fire ants, and gypsy moths. There are many, many more examples of ...

STOCK IMAGE/Getty Images Total butterfly abundance decreased across ... Monarch butterflies, for instance, are one example of a thriving species. The population of monarch butterflies nearly ...

Other species are among the living dead because of their interrelationships -- for example, the loss of a pollinator can doom the plant it pollinates, and a prey species can take its predator with ...

In some cases, the species are entirely dependent on each other (obligate mutualism) and in others, they derive benefits from their relationship but could survive without each other (facultative ...

"These frogs are a great example of how species can adapt to extreme environments, from tropical coastlines to dry deserts," Dr. Catullo said. "Their abundance and diversity make them an important ...