The Biodiversity Revolution

Hosted by conservation biologist Mitch Friedman, The Biodiversity Revolution is an often fascinating look at the interconnectivity of neighboring ecosystems, and the importance of looking at conservation and environmental issues as they relate to the big picture. Drawing on examples from the Greater North Cascades Ecosystem of Washington and British Columbia, Friedman demonstrates that the poor design of existing natural reserves do not portend well for the near future: in fact, it is questionable whether some species will be able to maintain a viable population. Mt. Olympic National Park has become a virtual island in a sea of clearcuts, thereby trapping indigenous species within a constricted area. But if timber cutting poses a major threat to both animal life and overall health of the ecosystem, it is not the worst evil. Surprisingly, roads are the biggest problem. Some voles, for example, won't even cross the wheel ruts of a jeep; elk, wolves, and grizzly bear (which need lots of room) are known to avoid areas where roads exist. A new road can literally separate an animal population into halves, seriously reducing its chances for survival. Throughout, as Friedman examines the plight of animals and the land, he offers workable solutions and alternatives. Rather than simply bemoaning the timber loss, for instance, he advocates the use of selective cutting with low road density in given areas. The Biodiversity Revolution is a remarkably holistic approach to environmental problems which are often examined in isolation. The question is: will people watch it? The major drawback to the program is the relentless onslaught of trade terminology: "biodiversity," "fragmentation," "riparian areas," "island biogeography," and "shifting mosaic steady state," are all explained, to be sure, but this kind of language is going to put off the average layperson. That's unfortunate; because the program is an illuminating, synergistic approach to a multitude of environmental issues. Recommended, with the above reservation. (Available from: Bullfrog Films, Oley, PA 19547; 1-800-543-FROG.)