Trophic Cascades

The removal of top predators causes dramatic changes in food chains and ecosystem structures. In this film, Robi Watkinson ...

The short film opens with two questions: “So what determines how many species live in a given place? Or how many individuals of ...

Definition of

Now that we know about nutrient cycling, we are ready to look at food webs as a whole. These represent feeding relationships ...

Ecologist Brian Silliman uses manipulative field experiments to reveal that salt marsh ecosystems are under top down control from ...

What is a

What is

When those megafauna disappear, the result is a "

Future Zoologist Academy is a virtual zoology and ecology program for kids who love animals. Explore the complete

RMBL Virtual Seminar by Dr. Josh Grinath entitled:

Start your free trial to the world's best AP Biology curriculum at https://learn-biology.com. Free trials available for teachers and ...

Foxes and cats are devastating the

What do gray wolves, elephants, and parrotfish have in common? They're all keystone species, which means they have an ...

A

Hidden beneath the surface of our coastal seas are towering forests - of kelp. These underwater ecosystems are as crucial to our ...

Tim Guilfoyle describes how he uses the film and a claim-evidence-reasoning activity to have his students examine Dr. Paine's ...

Narrated by the awesome Álvaro Hernandez Blanco, here is a fun documentary on

... half-century has been the discovery of widespread

For Jason Fitzgibbon, the line between passion and profession is beautifully blurred. As a wildlife biologist and environmental ...

All living organisms are interconnected in an ecosystem and all are important, but it turns out that some are extra important, kind of ...