Eco-Watch
8/4/94
What IS Ecosystem Management?
by Bill Pell1
Ed Grumbine's essay "What is Ecosystem Management?" (Conservation Biology 8:
27-38, Spring 1994) provides a fair overview of the historic development of
ecosystem management and makes some valid points about the lack of clarity in
most attempts to define it. The emphasis on ecological integrity is
appropriate and welcome and yes, "ecosystem management, at root, is an
invitation, a call to restorative action." Ultimately, though, the essay
falls short.
Grumbine outlines themes and goals that emerge from his search of the
literature. The ten dominant themes are: 1) Hierarchical Context, 2)
Ecological boundaries (working across administrative boundaries and defining
ecological boundaries at appropriate scale), 3) Ecological Integrity, 4) Data
Collection, 5) Monitoring, 6) Adaptive Management, 7) Interagency Cooperation,
8) Organizational change (structure and function of land management agencies),
9) Humans embedded in Nature, and 10) Values (human values play a dominant
role in ecosystem management). The five principal goals he lists are:
- Maintain viable populations of all native species in situ.
- Represent, within protected areas, all native ecosystem types across
their natural range of variation.
- Maintain evolutionary and ecological processes (i.e. disturbance
regimes, hydrological processes, nutrient cycles, etc.).
- Manage over periods of time long enough to maintain the evolutionary
potential of species and ecosystems.
- Accommodate human use and occupancy within these constraints.
Grumbine's statement of specific goals is cast within the overall, arguably
primary, goal of sustaining ecological integrity. The approach is basically
solid. But shortly after stating the goals Grumbine says that since we are
experiencing an unprecedented rate and scale of environmental destruction, and
now admit our profound scientific ignorance of ecological patterns and
processes, "we are in no position to make judgements about what ecosystem
elements to favor in our management efforts." Such an assertion seriously
begs the question, for we are in that position--with varying degrees of
humility--whether we like it or not: We do have to decide what ecosystem
elements to favor! Oddly, Grumbine seems to agree with this assertion in much
of what he then argues for in terms of engaging the public in environmental
education, decision-making, and management.
Perhaps the ten "dominant themes" represent a reasonable distillation of 33
papers, including five by Grumbine himself, that deal in one way or another
with ecosystem management. But even if "data collection," "monitoring," and
"values" would seem to be prerequisites of any coherent management scheme, it
would have been more useful, I believe, to focus on themes which distinguish
an ecosystem approach from others, an effort that would have yielded (for
starters anyway) "hierarchical context," "ecological boundaries," "ecological
integrity," "adaptive management" and "humans embedded in nature."
A more thorough elucidation of themes would have recognized that values are
not some untidy detritus that has to be factored in once all the scientific
information has been synthesized. Values, in fact, are intrinsic to each and
every theme listed, especially ecological integrity! Consider the following
statements, each appearing in thoughtful recent explorations of the integrity
concept:
"Meaningful discussion of ecological integrity must be tempered by the
realization that the concept does not exist outside of human value
judgements, unlike notions such as gravity or general relativity."
(Serafin and Steedman 1991)
"To protect ecological integrity and the integrity of human society, we
must first understand the needs of the earth's biota and the needs of human
society--needs that are not always convergent but are at least
interdependent." (Karr 1992)
"Ecological integrity is about our sense of the wholeness and well-being of
ecological systems and, in this, must reflect our sense of what we value in
them." (Kay 1993)
A more thorough treatment would have explicitly recognized "sustainable use"
as another dominant theme (instead of burying it in "values" or expecting
readers to somehow decode it from "humans embedded in nature"). The major
flaw in Grumbine's thesis is his failure to note that although integrity is
indeed the baseline from which all other ecosystem management outcomes must be
measured, the greater challenge across most of the planet is how well human
societies can forge relationships that both protect ecological integrity and
allow for use and livelihood. As David Orr noted in his recent book
Ecological Literacy, "Can we manage planet earth? Don't bet on it. But we
have a chance to manage ourselves by restoring a disciplined and loving
relationship to our places, communities, and to the planet."
Above all else we need better integration of ecological integrity and human
use values. The goals of ecosystem management need to be framed explicitly in
terms of the dynamic relationships between social-cultural and bio-physical
systems that sustain ecological integrity and provide for human use and
enjoyment in the long term.
In this light, Grumbine's attempt at definition falls short and should not be
termed a "consensus" view. A more reasonable and encompassing version would
suggest that
Ecosystem management integrates ecological knowledge and values toward the
general goal of achieving relationships that sustain long-term ecological
integrity and human use.
Toward the end of his essay, Grumbine acknowledges that a key to the success
of ecosystem management is the "balance between core reserves, buffers, and
the matrix of lands used more intensively by humans." This is indeed a
pivotal issue, and one that merits more discussion. So too does the idea that
we need to nurture "both the wildlands at the core of the reserve system and
the wildness within human beings." But let's also fully explore the
possibility that some of that wildness can be expressed in respectful, even
reverential use of the land. We need responsible alternatives to "resourcism"
that embrace human use and sustain options for livelihood, not just more
reserves. Only by addressing all the implications of "humans imbedded in
nature" can we expect to realize anything close to an ecological integrity
ethic.
LITERATURE CITED
Karr, J.R. 1992. Ecological integrity: protecting earth's life support
systems. Pages 223-238 In Costanza, R., B.G. Norton, B.D. Haskell.
Ecosystem health: New goals for environmental management. Island Press,
Washington, D.C.
Orr, David W. 1992. Ecological literacy: Education and the transition
to a postmodern world. State Univesity of New York Press.
Serafin, R. and R. Steedman. 1991. "Working Group Report: Measuring
Integrity at the Municipal Level." In Workshop on Ecological Integrity and
the Management of Ecosystems. Heritage Resource Center, University of
Waterloo, Waterloo, Ontario, Canada.
Woodley, S., J. Kay, and G. Francis. 1993. Ecological integrity
and the management of ecosystems. St. Lucie Press.
1 Bill Pell is the Ecosystem Management Coordinator
for the Ouachita
National Forest in Hot Springs, Arkansas.
Index