AND
SUSTAINABLE DEVELOPMENT
Winter Quarter, 2002 Kerin
Gould
Claire
Lucas
David
Manahan
Travis
Marcotte
David Rosenberg
Bettina
Scheinder
Matt
Smith
Chantal
Stoner
Bill
Travers
As world populations
and their subsequent resource, land use, and consumptive attitudes continue to
increase, habitat changes are rapidly reconfiguring the earth’s landscape. While these changes often bode well for
humans, many other organisms are finding this “new” landscape less hospitable,
evidenced by the shifting populations and ranges of these organisms. To what extent these “biodiversity” changes
are occurring is difficult to measure, as the definitions for the scale and
value of biodiversity (not to mention the mechanics of measurement) remain
elusive. Yet, despite the ambiguity in
defining the scale, measure, and value of biodiversity, there exist a number of
viable, working techniques, criteria, and programs for addressing what some are
calling the biodiversity crisis. This
paper first describes the attributes of biodiversity as a natural resource –
including its temporal and spatial scale; economic, ecological, and cultural
valuation; property regimes and forms of ownership; and the social and
political systems governing use and conservation. Second, we summarize approaches for sustainable development that
include biodiversity, classifying each approach as technologically,
economically, and/or socially relevant.
Biodiversity
definitions and its conservation have become issues of significant importance,
particularly as the commitment to include biodiversity into sustainable
development initiatives is growing. Although we often cannot agree upon a
strict definition of biodiversity, we can look at its attributes to better
understand the range of meanings and the overall importance within sustainable
development. The following section will detail the specific ways biodiversity
is approached in terms of scale; economic, ecological and cultural valuation;
data collection and information; and ownership characteristics.
Temporal and Spatial Scale: The temporal and
spatial scale of biodiversity as a resource can be seen as threatened and
managed wisely or not, depending on how we look at it and over what time scale.
How do we know if biodiversity is actually being depleted or used up? Is it really an issue at all (some would
certainly argue that it is not)? The
answer differs as we look at it from a global scale, community scale, or
species scale, and depending if we measure ‘use’ over days or millennia. Determining the scale and time frame in
which we will view biodiversity is critical before discussing and developing
strategies for management or protection.
The total number of species present in a given area often defines
biodiversity. However, scale and
temporal measures are key players that impact how this will change. Service (1997) approaches biodiversity from
a particularly scientific/biological viewpoint, but at the level of genetic
diversity of organisms. Service also
briefly addresses the cultural bias involved with the study and interpretation
of biotic diversity, meaning “macro-fauna” is more culturally “valuable” than
microbes. James, et al. (1999) equate
biodiversity with the number of acres protected in reserves by continent. When looking at conservation efforts by
continent, it then becomes possible to ignore the complexity of levels within
biodiversity that exist in each region.
For example, while North America has millions of acres of protected
areas for biological diversity, a large amount of this lies within relatively
sterile alpine rock and ice areas, thereby endangering biologically richer
areas from potential preservation efforts.
It is common to view biodiversity at the very localized level, even
microscopic as Service attempts, and to then develop measures on a
continent-wide scale as James, et. al. describe. These two examples are indicative of the range and complexities
of measure that scientists and policy makers are using to carry out the study
of biodiversity.
Valuation: The lenses we use to value biodiversity will
inevitably play a critical role in the way we measure, evaluate utility, and
design and implement sustainable conservation measures. McNeely (1994) introduces different
approaches to valuation that include both anthropogenic benefits and inherent
ecosystem benefits. He defines
biodiverse areas as ‘hard workers’ for society, providing resources for human
needs (both physical and mental) and that these areas have value in
themselves. Throughout this course we
have identified and discussed three areas of valuation: economic, ecological,
and cultural approaches to valuing biodiversity.
Economic: While historic
economic valuation concentrated on market values for biodiversity (such as
fisheries or ivory), much of the current debate focuses on economic benefits
not initially included in the biodiversity conservation equation. For example, biodiversity can also be valued
as an ‘insurance plan’ for agricultural stability (Perrings, 2001), a partner
in the delivery of critical ecosystem services, a provider of income and
sustenance through harvested forest products (Godoy, et. al., 2000), and/or a
storehouse of potentially beneficial products that can be derived from various
organisms. (Macilwain, 1998) Although
using the tools of economics, particularly prices and supply/demand
relationships, to develop conservation measures seems logical, arriving at a
truly meaningful dollar value upon which we can ‘trade’ biodiversity services
has been extremely difficult.
Ecological: Although it is
clear that we can not truly separate the various aspects of biodiversity, there
have been many attempts to evaluate biodiversity from a strictly scientific
point of view. These ecological
approaches have largely focused on understanding or defining the concept of
biodiversity. While there is debate
among scientists, most agree that a meaningful and ideal definition of
biodiversity considers all organisms from all types of habitats and
incorporates the genetic diversity within these species. While it is not implicit in many definitions,
the ecosystem level must be incorporated into our understanding of biodiversity
because organisms and their genes do not exist in isolation, but rather they
interact with other organisms in the ecosystem. Historically, scientists have categorized species richness using
the Alpha/Beta/Gamma diversity concept.
Essentially this conceptual framework attempts to understand the
differences between "within-habitat diversity" (alpha diversity),
"between-habitat diversity" (beta diversity), and regional level diversity
(gamma diversity). Unfortunately, different scientists have defined and used
these terms differently, thus clouding the definitions and their usages.
(Krebs, 1994) In addition, differences
in taxonomic units (family vs. genus vs. species) or which types of organisms
(trees vs. vertebrates vs. microorganisms) are measured can skew the results of
any diversity studies. In terms of
evaluating the most "important" areas for biodiversity conservation, there
are conflicting views. However, there
does exist some agreement among scientists and policy-makers that the main foci
should be: 1) Regions where biodiversity seems to be very high; 2) Regions
where the organisms appear to be the "most unique" (more endemic
species); and 3) Regions with many rare and endangered species. While there is currently no way to truly
evaluate the above idealized regions, most agree that specific species of plants or vertebrates (and now even invertebrates
or fungi) can be used as surrogate measures for the biodiversity of all (or
most) other organisms within the particular ecosystem.
Cultural: Not only does
biodiversity provide resources for human needs, including food, building
materials, fuel, and firewood (which can be readily placed in economic
valuation), it also contributes to the spiritual well being of individuals and
cultures. McNeely (1994) expresses the
cultural importance of biodiversity when stating that, “living richness,
natural beauty, and cultural significance are a source of inspiration and are
an irreplaceable asset of the countries to which they belong.” Additionally, many cultural traditions,
religions, and patterns of existence are rooted in the ecologically diverse
surroundings in which they habitate. As
the biodiversity debate evolves, it is important to remain aware that the
cultural value of biodiversity is immeasurable, and that variations in how the
spiritual well being and/or benefits of biodiversity are perceived across
cultures is crucial to understanding ourselves.
Without community,
national, and international participation and cooperation, the decision-making
processes that are essential in determining the social and political systems
governing the use and conservation of biodiverse regions cannot take place on a
fair and equal footing, thus perpetuating the inequities that allow
over-exploitation and the degradation of biodiversity to occur.
Even though many of the scientific attributes of
biodiversity are still open for debate, throughout the world different
techniques have been implemented to preserve biodiversity. These approaches tend to be technological,
economic, and/or social in nature, often using aforementioned systems of
comanagement, NGO intervention, or national/international policy to implement
the ideas and maintain sustainability.
While some attempts prove futile, many have shown varying degrees of
success; we will now briefly discuss some techniques that have proven
effective.
Bans: One of the earlier methods of species preservation, bans
have demonstrated some success even while only addressing a small part of the
issue. Whether the bans are local or
global, they are usually social and political in nature (aided by the
semi-bounding, semi-enforceable CITES) and have immediate negative economic
impacts on those directly affected.
However, since they tend to encompass “macro-fauna”, these negative
impacts are often mitigated through ecotourism (which potentially lead to
sustainable living) or technological advances.
The two most visible and successful global bans concerned whaling and
ivory. While both experienced numerous
problems, from poaching to non-compliance to local economic hardship, the
results have been dramatic and the ongoing economic, political, and social
implications positive. As Princen
(1994: 131) says, “Under conditions of rapid and irreversible decline, a ban
may be useful, possibly necessary, in promoting a broader conservation and
environmental agenda. Thus, their
greatest asset lies in the educational value procured from such an immoderate
position, and once human hardship is planned and accounted for, bans may prove
(and have actually proven) to be a very effective (though limited as a
sustainable development model) species protection tool.
Ecotourism: The ecotourism approach to sustainable
development is clearly economically oriented; revenue is generated through
tourism to particularly biodiverse areas. Often this strategy takes place in
conjunction with protected areas, and tourism can contribute greatly to
national revenue. (Inamdar et al. 1999)
Tourism can also provide direct incentives for conservation within local
communities. However, as Hill and Press
(1994) demonstrate, there are hidden costs to the tourism approach - a
potentially double-edged sword; while low numbers of tourists do not generate
enough income to create conservation incentives or pay tourism-related
infrastructure costs, too many tourists can have detrimental effects on local
land-use practices and can ultimately threaten the very ecosystems the tourists
have come to observe. Thus, ecotourism-based
approaches require careful monitoring, full cooperation and consultation with
local residents, and attention to short-, medium-, and long-term planning and
goals.
Protected areas: Losing biodiversity at an ever-increasing
rate, habitat destruction stands out as an immediate and identifiable
threat. Thus, by protecting areas of
land or water, biodiversity is hopefully conserved. The focus of this technique is to conserve whole ecosystems,
rather than individual species, or conversely, to protect individual species by
conserving their habitat and thereby all other species within that habitat are
afforded protection. There are many
political and scientific issues tied up in biodiversity conservation and protected
areas, especially concerning which areas to protect and how to best implement a
reserve. While the political issues
have been discussed throughout, the complexity of site locations includes
especially patch size and shape. These
refer to the necessary habitat components of individual organisms within the
planned protected areas. In order to be
successful, these needs must be met, either through a large enough area or a
patchwork of areas connected with corridors.
The obstacles faced are many, including socio-political, edge effects,
viable genetic diversity, etc. However,
on the whole, protecting areas of land or water is a common and effective
method of habitat and biodiversity preservation. Many NGOs (i.e., RAN, Nature Conservancy) advocate this method
and have successfully lobbied locally, nationally, and internationally in many
parts of the world. Sometimes these
efforts have prioritized conservation to a degree that ignores local or
economic needs, though other techniques (ecotourism, bioprospecting) are trying
to allay this problem. In general,
though, the encompassing nature of habitat preservation, when accompanied by
economic incentives, is a valuable tool for maintaining biodiversity health in
a sustainable development paradigm.
Bioprospecting: This has been touted as a "sustainable
development" solution that may help alleviate the current biodiversity
crisis by directly increasing the economic value of intact natural areas. Indeed, humans have been using natural
products like plants, animals, fungi, and other organisms for centuries. Originally, humans used mostly raw extracts
of plants for medicines, but refinements in technology have increased the scope
of uses for organisms to include enzymes, proteins, and genes. While pharmaceuticals are still the primary
use, new uses such as biotechnology in agriculture and cosmetics are also
becoming economically important. The
idea is that the intact biodiversity may eventually generate more income than
timber or bush meat because extracts, genes, and products from these organisms may
cure disease or confer resistance.
Therefore, the main stumbling blocks to bioprospecting as a sustainable
development tool are also human in nature.
For bioprospecting to succeed as sustainable development, it must reward
the companies that do the research and development while also protecting the
biodiversity of the region being utilized, benefit the country in question, and
respect any indigenous knowledge (and economic rights) of the organisms being
used.
When addressing the
complexity of biodiversity in sustainable development, one is certainly not
fixed into definitions and parameters.
Both topics require multitudes of research and investigation into their
scientific, social, political, economic, and aesthetic implications, recognizing
that this may be unique to each species, location, and situation. However, even given this sort of
issue-specific complexity, there exists throughout the world examples of the
successful integration of these factors in sustainable, biodiverse programs. This is not to say that sustainable
development and biodiversity preservation are always attainable. On the contrary, James et al. (1999) assert
that the obstacle to progress in maintaining biodiversity is the lack of
political will to change patterns of government policy and expenditure. This
political will, accompanied by economic, social, and ethical adjustments, must
come from all facets of society and, through local, regional, and international
cooperation between indigenous folk and political/business leaders alike, be a
catalyst for change in the policies governing the use and conservation of the
biodiversity now encompassing our dynamic world.
Abbot, Joanne and
David Thomas. 2001. Understanding the Links Between Conservation and
Development in the Bamenda Highlands, Cameroon. World Development 29:
1115-1136.
Barrett, Christopher
B. and Peter Arcese. 1995. Are
Integrated Conservation-Development Projects (ICDPs) Sustainable? On the
Conservation of Large Mammals in Sub-Saharan Africa. World Development 23(7): 1073-1084.
Conklin, Beth A. and
Laura R. Graham. 1995. The Shifting Middle Ground: Amazonian Indians and
Eco-Politics. American Anthropologist
97(4): 695-710.
Gibson, Clark C. and
Stuart A. Marks. 1995. Transforming Rural Hunters into Conservationists: An
Assessment of Community-Based Wildlife Management Programs in Africa. World Development 23(6): 941-957.
Hardin, G. 1988. The Tragedy of the Commons. Science: 1243-1248.
Hill, M. and A.
Press. 1994. Kakadu National Park: An Australian experience in comanagement. In
Western, David and R. Michael Wright, eds., Natural
connections: Perspectives on community-based conservation. Covelo, CA:
Island Press: 135-157.
Inamdar, A., de Jode,
H., Lindsay, K. and S. Cobb. 1999. Capitalizing on Nature: Protected Area
Management. Science 283: 1856-1857.
James, Alexander,
Kevin Gaston and Andrew Balmford.
1999. Balancing the Earth’s
accounts. Nature 401: 323-324.
Krebs, Charles J.
1994. Ecology (4th Edition). Harper
Colliins Pub: 514 541.
Macilwain, C.
1998. When rhetoric hits reality in
debate on bioprospecting. Nature
392:535-540.
McNeely, Jeffrey A. 1992. The Biodiversity Crisis: Challenges for Research and Management. In Sandlund, O.T., K. Hindar and A.H.D. Brown, eds. Conservation of Biodiversity for Sustainable Development. Oslo: Universitetsforlaget: 15-26.
McNeely, Jeffrey A.
1994. Protected areas for the 21st century: working to provide benefits to
society. Biodiversity and Conservation
3: 390-405.
Orlove, Benjamin S
and Stephen Brush 1996. Anthropology and the conservation of biodiversity. Annual Review of Anthropology 25:
329-352.
Orlove, Benjamin S.
1991. Mapping reeds and reading maps: the politics of representation in Lake
Titicaca. American Ethnologist 18(1):
3-38.
Perrings C (2001) The
Economics of Biodiversity Loss and Agricultural Development in Low Income
Countries. In Lee D.R., and Barret C.B. eds. Tradeoffs or Synergies? Agricultural Intensification, Economic
Development and the Environment. Wallingford and New York, CAB
International: 57-72.
Princen, Thomas.
1994. The ivory trade ban: NGOs and international conservation. In Princen,
Thomas and Matthias Finger. Environmental
NGOs in world politics: linking the local and the global. London:
Routledge: 121-159.
Service, R.F. 2001.
Microbiologists Explore Life¹s Rich, Hidden Kingdoms. Biodiversity. v275: 5307.
Wilson, E.O. Public Talk at Cody¹s Books. Berkely, CA. 2/20/02.