REPEAT PHOTOGRAPHY ON RANGE AND FOREST LANDS IN THE WESTERN UNITED-STATES

Repeat photography is a valuable tool for demonstrating the effects ov er time of climate, management and other variables on range and forest lands, This bibliography lists 175 publications using repeat photogra phy, with information on the ecosystems photographed, states where the y are located, number of photographs, and dates when the photographs w ere taken. References to photography of 19 natural ecosystems, 2 culti vated ecosystems and 3 special problems are listed. The interval betwe en photographs may be over a century or less than a year.