1 - 12 of 32 results
Serengeti: Nature’s Living Laboratory

This film explores the foundational research in the Serengeti National Park, Tanzania, that uncovered many of the ecological principles that govern how animal populations and communities are regulated.

Trophic Cascades in Rivers

In this talk, ecologist Mary Power discusses how herbivorous fish and their predators contribute to the regulation of aquatic ecosystems.

Untangling Salt Marsh Food Webs

In this talk, ecologist Brian Silliman discusses the discovery that salt marshes are controlled by the top-down forces of consumers.

Floods, Droughts, and Food Chains

In this talk, ecologist Mary Power discusses how a river's community of herbivores and predators is affected by changes in river flow.

Niche Partitioning

This video introduces the concept of niche partitioning with examples drawn from the African savanna.

Metabarcoding

This video describes the technology of metabarcoding, which allows scientists to determine herbivore diets based on the sequences of plant DNA extracted from animal dung.

How Species Coexist

In this talk, ecologist Robert Pringle discusses how large herbivores can coexist by partitioning ecological niches by time, space, and diet.

Communities as Ecological Networks

In this talk, biologists Robert Pringle and Corina Tarnita discuss how certain connections in ecosystems can be measured experimentally and investigated using mathematical models.