xiv acknowledgments
and Rachel Steller. Kirsten Kesseboehmer and Amanda Zellmer, as undergradu-
ates, made huge contributions to the notions of modeling and narrative and, as
authors, on some of the most important papers. Another crucial group met after
Sandbox, Allen’s “My engineers”: Gregori Kanatzidis, Nathan Miller, Samantha
Paulsen, and Edmond Ramly. They all played a role in developing the ideas for
chapter 8 here. Julie Collins, Kirsten Kesseboehmer, and Noel Lawrence have back-
grounds in the humanities, which they presented with unusual confidence to the
scientists. Bruce Milne and his graduate student Mike Chang were generous with
their new ideas on foodsheds.
Various senior scientists have been helpful as colleagues for Allen to discuss
aspects of the work between editions: Thomas Brandner, Martin Burd, Steve
Carpenter, Charles Curtin, Billy Dawson, Roydon Fraser, Robert Gardner, Mario
Giampietro, Philip Grime, Alan Johnson, James Kay, Ronald McCormick, John
Norman, Robert O’Neill, David Roberts, Edward Rykiel, John Sharpless, Duncan
Shaw, Hank Shugart, Joseph Tainter, and David Waltner-Toews. Henry Horn and
Tony Ives provided the anecdotes of their childhood memories. Judith Rosen was
most helpful in giving the inside story on her father, Robert Rosen, and for chasing
down several of his crucial quotations.
Hoekstra was fortunate to have the support of the U.S. Forest Service (USFS) in
integrating his work assignments there with work on and application of Toward a
Unified Ecology. That support allowed Hoekstra and his colleagues to test the appli-
cation of concepts in the first edition. The applied research studies were carried out
within the mandate for resource management by the agency and with the narrative
modeling scheme described in chapter 9 of the first edition, “A Unified Approach
to Basic Research.” They were able to develop and apply the concepts in Toward a
Unified Ecology from a national forest to the international scale. The results of these
applied efforts support and confirm our confidence in the value of these concepts,
which are expanded in this edition.
The geographic and ecological scope of these applied research studies required
the involvement of many people. Unfortunately, it is not possible to individually
recognize everyone involved, but only to mention the key participants. In addition,
it should be mentioned that many of these studies on Toward a Unified Ecology
concepts were also created within the context of Supply-Side Sustainability concepts
found in our companion book with our colleague Joseph Tainter.
The most significant of Toward a Unified Ecology tests of concept are briefly
described here. First, a 1994 workshop in Israel and its publication involved sev-
eral hundred scientists and managers from more than thirty nations focused on
the topic of Hoekstra and Moshe Shachak’s book Arid Land Management: Toward
Ecological Sustainability. Steve Archer, Linda Joyce, Joe Landsberg, David Saltz,
No’am Seligman, and Moshe Shachak led the technical sessions of the workshop.
Second, a North American applied research study in 1999 used the concepts in