Established in 1872, Yellowstone National Park is the oldest and
one of the largest national parks in the world. In this remarkable
book, scientists Mary Meagher and Douglas B. Houston present 100
sets of photographs that compare the Yellowstone of old with the
park of today.
Most of the photo sets include three pictures-not the usual
two-with many of the original views dating back to the 1870s and
1880s. From the same photo points used by early photographers,
Meagher and Houston rephotographed the scenes in the 1970s, and
then, following the great fires of 1988, again in the 1990s. The
result is an illuminating record of Yellowstone's dynamic ecosystem
and its changes over time.
Through close analysis of the photos and reference to the vast
amount of available data, Meagher and Houston describe changes in
vegetation, growth of wildlife populations, the effect of beaver
occupancy on wetland areas, and geothermal and elevational shifts.
At the same time they point out the extent to which many sites have
not changed-despite important switches in park policy and an
increase in human activity.
Yellowstone National Park has long been the focus of major
ecological debates. Should managers allow wildfires to burn? Should
the elk and bison populations be controlled? Are too many people
visiting the park? Yellowstone And The Biology Of Time offers a
wealth of information to help us answer these questions. A visual
treasure, this book will be of value to scientists from various
disciplines as well as to the many people who care about
Yellowstone and other protected wilderness areas around the
world.
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