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In recent years, OCW has substantially increased its video content. We know that video is important to many learners. However, the high cost of video production means we can only provide video for select courses. Your donation can help fund more OCW video.

Two leading ecologists describe the complex interactions between species and their environment in aquatic ecosystems. Using field experiments, the researchers illustrate how interactions among organisms such as fish, crab, insects, snails, and algae determine the vitality of rivers and coastal ecosystems and how these factors are affected by human activities.

The ecosystem of a river depends on complex interactions between primary producers, grazers, and predators, which in turn are determined both by the traits of the individual species involved and the physical conditions of the river. River ecologist Dr. Mary Power illustrates these principles by describing how the dominant grazing fishes in a river ecosystem play a critical role in forming the aquascape.

Coastal wetlands are dominated by a variety of plants adapted to a stressful environment. In the absence of a significant number of herbivores, the growth of these plants was thought to be limited only by nutrient availability. Through experiments, Dr. Brian Silliman revealed that salt marshes, like many other terrestrial ecosystems, are mainly controlled by the top-down forces of herbivores and other consumers.

Home » Courses » Audio/Video Lectures

In recent years, OCW has substantially increased its video content. We know that video is important to many learners. However, the high cost of video production means we can only provide video for select courses. Your donation can help fund more OCW video.

Two leading ecologists describe the complex interactions between species and their environment in aquatic ecosystems. Using field experiments, the researchers illustrate how interactions among organisms such as fish, crab, insects, snails, and algae determine the vitality of rivers and coastal ecosystems and how these factors are affected by human activities.

The ecosystem of a river depends on complex interactions between primary producers, grazers, and predators, which in turn are determined both by the traits of the individual species involved and the physical conditions of the river. River ecologist Dr. Mary Power illustrates these principles by describing how the dominant grazing fishes in a river ecosystem play a critical role in forming the aquascape.

Coastal wetlands are dominated by a variety of plants adapted to a stressful environment. In the absence of a significant number of herbivores, the growth of these plants was thought to be limited only by nutrient availability. Through experiments, Dr. Brian Silliman revealed that salt marshes, like many other terrestrial ecosystems, are mainly controlled by the top-down forces of herbivores and other consumers.

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Home » Courses » Audio/Video Lectures

In recent years, OCW has substantially increased its video content. We know that video is important to many learners. However, the high cost of video production means we can only provide video for select courses. Your donation can help fund more OCW video.

Lectures on the Science of Language: Volume 1 by F. Max.


Lectures on the science of language - Internet Archive

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