|aEcosystems|h[videorecording] /|cHawhill Associates ; written and produced by Bill Stonebarger.
|aMadison, WI :|bHawkhill Associates,|cc2005.
|a1 videodisc (ca. 40 min.) :|bsd., col. ;|c4 3/4 in.
|apt. 1. From nature study to ecology (19:00) -- pt. 2. The web of life (19:26).
|aVideographers, Jane Denny, Michael Stonebarger, Bill Stonebarger ; editors, Michael Stonebarger, Bill Stonebarger ; music, Michael Stonebarger.
|aIn part 1, the naturalist tradition of Henry David Thoreau is contrasted with the hard science tradition of modern quantitative ecology. Features new footage from Walden Pond and from Silver Springs, Florida, where Eugene and Howard Odum did their pioneering studies in the 1950s. In part 2, the program carefully outlines concepts used by ecologists to study ecosystems today. Includes a look at how human values play key roles in environmental choices. --Container.