Ecology: Concepts and Applications 4th Edition by Manual Molles

تمرين 8

According to the river continuum model, the organisms inhabiting headwater streams in temperate forest regions depend mainly upon organic material coming into the stream from the surrounding forests. According to the model, photosynthesis within the stream is only important in the downstream reaches of these stream systems. Explain. How would you go about testing the predictions of the river continuum model?