About The ESRI Conservation Program
Environmental Systems Research Institute, Inc.
January 2, 1996
CONTENTS
1. An Invitation to Participate
2. The Biodiversity Crisis
3. The Information Crisis
4. The Role of Information in Local Action
5. The Role of Information in Conservation
6. GIS is a tool for Holistic Information Management
7. Role of Database Design
1. An Invitation to Participate
At the 1991 International User Conference, ESRI announced the formation
of a new Conservation Users Special Interest Group, now called the ESRI
Conservation Program (ECP). This group is a membership organization consisting
of local and international conservation organizations, GIS hardware and
software manufacturers, large GIS users interested in supporting conservation
programs, and donors. Membership is open without charge to any individual
representing or affiliated with such institutions, whether they use a GIS
or not. This statement outlines the philosophy and goals of the Program
and reviews its progress to date. It will serve as the basis for a formal
funding proposal to allow for expansion of these services to other conservation
groups. This program is designed to serve the conservation community, so
this statement is being circulated within the community to allow for review
and comments and to invite partnerships prior to drafting a final formal
proposal.
2. The Biodiversity Crisis
The environment has become the single most important issue worldwide
as we enter the 21st century. As human populations exceed the limits of
biological resources everywhere, and greed for quick profits pushes exploitation
without limit, the very fabric of our natural systems is threatened and
human civilization itself lies in peril. If humans are to survive, we must
become stewards of our home rather than demolishers. We have come to realize
that biodiversity, the wide variety of living species, is a critical factor
in the health of our planet. We live in a time of incredibly rapid change,
even so, there are still opportunities for concerted action to protect
and manage what remains of our natural heritage so that we may ensure the
survival and enlightenment of future generations. To be effective, however,
action must be based upon accurate information and continuous review.
3. The Information Crisis
Some have called this "The Information Age" since its progress
and politics have been guided by control of information in the same way
that development during the previous "Industrial Age" was guided
by control over industry and mass production. The advent of the computer
and huge databases inspecting every aspect of our lives has certainly made
this apellation frighteningly real to many of us. Who controls access to
information may become the principle social issue of the next decade as
access itself becomes an important measure of political power. In some
African countries, the private ownership of small computers was discouraged
in the mid-eighties because they were perceived as subversive. Like most
weapons, however, computers can cut both ways. The very power that allows
them to control access to data can also be harnessed by individuals to
collect and manage data independently. Historically, however, technology
has often been a barrier to the free flow of information. The centralized
use of computers in many institutions has often generated huge databases
which are so complex and self-serving that no one, from the individual
right up to the managers who operate it, can obtain useful information
from them in a timely manner. As the saying goes you start with raw data,
then ask meaningful questions of it to produce information, which is combined
with human experience and wisdom to produce knowledge. Unfortunately, most
large data-bases are exactly that, collections of raw data that still require
a lot of questions and analyses before they can become information or put
to use as knowledge. In order to become knowledge, it is essential that
data be controlled and managed by the users who depend on it for their
day-to-day activities.
4. The Role of Information in Local Action
Perhaps the clearest illustration of the information crisis is in resources
management. As industrialized countries increase their ability to peer
at the planet and garner detailed resources information, they are frequently
in the position of having better data than the resources management agencies
in the countries themselves. This unequal access to information can lead
to inequalities in control over the decisions made about the resources.
The critical flaw in this is that the local occupants of any biotic system,
especially indigenous people, usually know much more about how that system
works than any national or international agency, since it is very often
their livelihood. Because this knowledge is often informal, ranging from
folklore and taboos to family tradition, it is often ignored when placed
against the sorts of high-tech presentations that large development projects
can utilize. Unfortunately, large externally-controlled development projects
never seem to get it right since they often neglect long-term goals of
sustainability. Africa is littered with the corpses of projects that failed
for the most elementary of reasons. Local communities are frequently well
aware of the history of development attempts in their area and can be quite
lucid about why failure occurs and how to avoid it. Unfortunately, they
are seldom consulted and local approval is seldom valued. This is ironic
in that it is usually the locals who pay the most severe costs of overexploitation
and bungled efforts.
The cooperation of local people is essential to the action that will
be needed to protect and manage earth's environment, and to achieve this,
there must be ready access to resources information at the local level
and well-established methods for incorporating local knowledge and priorities
in any larger-scale decisions. The more widely such information can be
shared, the more likely it is that all aspects of local knowledge will
be included and the more likely a commonly-agreed solution becomes. When
computer tools are applied in these circumstances, great care must be taken
to keep the focus on the human and not the tool. One of the most common
mistakes illustrating this point is the tendency of computer programmers
to assume that if a computer is involved then the normal usage by an individual
will be in front of a screen punching keys, when in fact this is the least
appropriate use. It is far more logical to think of the average user as
getting their information as they always have, from a respected individual
or a piece of paper or a map, while the computer's role is to drive the
production of these various paper and other types of outputs for dissemination
in the most appropriate manner possible. Finally, issues of local control
over information and decisions are often politically sensitive, and a great
deal of tact and sensitivity is required when outside agencies become directly
involved in such processes. Rather than direct involvement, however, the
ECP approach is to empower local people who are already showing some effectiveness
in mobilizing local action.
Some of the most effective conservation programs are in Zimbabwe and
Zambia where local people are given control over and management responsibility
for wildlife species. Once wildlife is seen as a husbandry opportunity
then vast numbers of would-be poachers are readily turned into active stewards
and game scouts. The ECP already actively supports the Zambian program
and will soon include the Zimbabwean program as well.
5. The Role of Information in Conservation
In a recent joint statement on world biodiversity (1), the world's major
conservation organizations concluded three things: 1. Nature is diverse
2. This diversity must be preserved, and 3. Knowledge about diversity is
very inadequate because species and ecosystems are so numerous and the
rate of progress in describing them very slow. Conservative estimates give
a figure of 10 million species alive in the world today, yet in the past
230 years scientists have only managed to describe 1.4 million species.
At this rate it would take over 1,600 years to finish the job. There is
a clear need to protect as many unknown species as possible and a need
for better, faster tools to assist in species and ecosystem description
for those areas which cannot be protected. At current extinction rates
the next few years may provide the only opportunity to collect information
on many species and habitats, before they disappear forever.
6. GIS is a tool for Holistic Information Management
Solving these environmental information and management problems with
local participation requires the ability to combine and integrate many
different viewpoints and many different bodies of knowledge about the environment.
The Ecology movement taught us all that the environment could only be understood
if seen as an integrated system and studied in an interdisciplinary fashion.
GIS stands for Geographic Information System, and it is variously defined
as a computer-based system for the storage, management and analysis of
geographic information and associated data. Perhaps its most important
characteristic, however, is that it allows a wide variety of data to be
integrated and combined in a formal, logical manner on the basis of spatial
relationships. If a problem or data has a spatial component, then a GIS
allows it to be analyzed and interpreted spatially, in ways never before
possible with manual maps, tabular computer databases or statistical techniques.
The GIS is thus the first analytical tool that allows us to directly implement
the ecological view of reality and to achieve a holistic information management
capability, which is why it holds such promise in the struggle to solve
the difficult biological and management problems that lie ahead.
This integrative capability derives directly from the advanced data
processing abilities of the computer, so while many of the concepts of
a GIS can be applied to manual map management systems, these are not true
GIS's. There are also computerized map databases and CAD systems which
are only capable of graphic operations and amount to little more than just
a digital version of a paper map, easier to edit perhaps but definitely
not a GIS since they lack any of the analytical and integrative functions.
Among true GIS's there has previously been a split between so-called "raster"
and "vector" systems. Raster systems divide the world into a
grid of cells, each cell receiving a value. Since remote sensing data comes
in this format, raster systems are essential for processing satellite images,
and raster formats are better for some simple GIS functions. While limited,
the raster model is simpler to write programs for so many custom and in-house
GIS's are built upon this model. Unfortunately, raster systems have historically
presented greater difficulties for relational database design since each
spatial feature must be represented as a large number of cells rather than
as a single exact feature. Vector systems derive from the formal mathematics
of 2- dimensional planar topology and relational algebra, and are generally
better platforms for the sorts of complex spatial and statistical analyses
that a GIS is often set up for in the first place. Since each spatial feature
is represented as a single entry in each table, various relationships are
easier to represent. ArcInfo was the first, and is still the leading GIS
system, and with the current release ArcInfo integrates raster modelling
capabilities with vector capabilities. Both of these tool sets are integrated
with relational attribute tables. With this advance, the argument over
which is better, raster or vector, becomes moot.
7. Role of Database Design
The capability for advanced analysis always carries a price: data must
be formally defined and structured or the products of the analyses will
have no meaning. Database design is the process whereby raw data sources,
database management methods and quality control procedures, and the desired
analytical operations are all integrated into a formal plan which can guide
the data entry and computer programming tasks yet is still intelligible
to the end-users so they can control the near-constant tendency of computer
programs and databases to whirl off into irrelevancy. Formally stated,
a database design must define 3 things: 1. data structures: how the data
will be partitioned into files and how these files will be related to one
another 2. Integrity rules: What kinds and values of data are valid for
this database, what relationships represent valid real-world phenomena,
how is a quality control error defined 3. Operators: What analytical operations
will this database support? What operations will produce garbage data and
must therefore be prohibited? These design activities are often carried
out by specialist consultants and analysts. A GIS cannot reach its fullest
potential for integration and data sharing without such a design, in the
same way that a car cannot achieve purposeful travel across unfamiliar
terrain without a map. Unfortunately, there is no easy fix for a good database
design. Designs carried out apart from the users of the system are often
worthless and irrelevant. Design activities carried out by outside agencies
on behalf of an organization run the same risk. To be successful, the database
design process must be viewed as an intimately cooperative effort among
the users themselves, and a good database designer functions more as a
facilitator between users, teaching them enough about the design process
so they can control it directly, while providing an overview to help tie
the different user requirements together. The idea of teaching users how
to solve their own GIS problems rather than trying to build databases or
conduct analyses for them is fundamental to the philosophy of successful
and self- sustaining GIS.
Copyright 1996
Environmental Systems Research Institute, Inc. All rights reserved.
|