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Table 5.4. Costs and Benefits of Proactive as Contrasted with Reactive Ecosystem Management as Revealed in the MA Scenarios

  Proactive Ecosystem Management Reactive Ecosystem Management
Payoffs Benefit from lower risk of unexpected losses of ecosystem services, achieved through investment in (1) More efficient use of resources (water, energy, fertilizer etc.); (2) More innovation of green technology; (3) Capacity to absorb unexpected fluctuations in ecosystem services; (4) Adaptable management systems; (5) Ecosystems that are resilient and self-maintaining

Do well under changing or novel conditions

Build natural, social and human capital
Avoid paying for monitoring efforts

Do well under smoothly or incrementally changing conditions

Build manufactured, social and human capital
Costs Technological solutions can create new problems

Costs of unsuccessful experiments

Costs of monitoring

Some short-term benefits are traded for long-term benefits
Expensive unexpected events

Persistent ignorance (repeating the same mistakes)

Lost option values

Inertia of less flexible and adaptable management of infrastructure and ecosystems

Loss of natural capital

Source: Millennium Ecosystem Assessment
 Synthesis Report (2005),
Chapter 5, p.83
(Scenarios Working Group Report, S.SDM Summary)

Related publication:
Ecosystem Change homeEcosystem Change
Other Figures & Tables on this publication:

Box 3.1 Table. Selected Water-related Diseases.

Table 1.1. Comparative table of reporting systems as defined by the Millennium Assessment

Table 2.1. Trends in the Human Use of Ecosystem Services and Enhancement or Degradation of the Service Around the Year 2000 - Provisioning services

Table 2.1. Trends in the Human Use of Ecosystem Services and Enhancement or Degradation of the Service Around the Year 2000 - Regulating services

Table 2.1. Trends in the Human Use of Ecosystem Services and Enhancement or Degradation of the Service Around the Year 2000 - Cultural services

Table 2.1. Trends in the Human Use of Ecosystem Services and Enhancement or Degradation of the Service Around the Year 2000 - Supporting services

Table 2.2. Indicative Ecosystem Service Trade-offs.

Table 5.1. Main Assumptions Concerning Indirect and Direct Driving Forces Used in the MA Scenarios

Table 5.2. Outcomes of Scenarios for Ecosystem Services in 2050 Compared with 2000

Table 5.3. Outcomes of Scenarios for Human Well-being in 2050 Compared with 2000

Table 5.4. Costs and Benefits of Proactive as Contrasted with Reactive Ecosystem Management as Revealed in the MA Scenarios

Table 8.1. Applicability of Decision Support Methods and Frameworks

Marine, Coastal, and Island Systems

Urban, Dryland and Polar systems

Forest systems

Cultivated systems

Inland water and Mountain systems

Box Figure B. Proportion of Population with Improved Drinking Water Supply in 2002

Box Figure C. Proportion of population with improved sanitation coverage in 2002

Figure 1.2. Conversion of Terrestrial Biomes

Figure 1.3. Decline in Trophic Level of Fisheries Catch Since 1950

Figure 1.4. Locations reported by various studies as undergoing high rates of land cover change in the past few decades.

Figure 1.5. Global Trends in the Creation of Reactive Nitrogen on Earth by Human Activity, with Projection to 2050

Figure 1.7. Growth in Number of Marine Species Introductions.

Figure 1.8. Species Extinction Rates

Figure 3.4. Collapse of Atlantic Cod Stocks Off the East Coast of Newfoundland in 1992

Figure 3.5. Dust Cloud Off the Northwest Coast of Africa, March 6, 2004

Figure 3.6. Changes in Economic Structure for Selected Countries

Figure 3.7. Human Population Growth Rates, 1990-2000, and Per Capita GDP and Biological Productivity in 2000 in MA Ecological Systems

Figure 4.1. GDP Average Annual Growth, 1990-2003

Figure 4.2. Per capita GDP Average Annual Growth, 1990-2003

Figure 4.3. Main Direct Drivers of Change in Biodiversity and Ecosystems

Figure 5.1. MA World Population Scenarios

Figure 5.3. Number of Ecosystem Services Enhanced or Degraded by 2050 in the Four MA Scenarios

Figure 6.1. MA Sub-Global Assessments

Figure 7.1. Characteristic Time and Space Scales Related to Ecosystems and Their Services

Box 3.1. Linkages between Ecosystem Services and Human Well-being

Box 6.1 Local Adaptations of MA Conceptual Framework

Scenarios of the Millennium Ecosystem Assessment

MA Scenarios - Global Orchestration

MA Scenarios - Order from Strength

MA Scenarios - TechnoGarden

MA Scenarios - Adapting Mosaic

Marine, Coastal and Island systems

Urban, Dryland and Polar systems

Forest and Cultivated systems

Inland waters and Mountain systems

MA Systems

Box 2.1: Ecosystem Services

Box 2.1: Ecosystem Services

Box 3.2. Ecosystems and the Millennium Development Goals

Box 3.1. Linkages between Ecosystem Services and Human Well-being: Basic Materials for a Good Life

Box 3.1. Linkages between Ecosystem Services and Human Well-being: Health

Box 3.1. Linkages between Ecosystem Services and Human Well-being: Good Social Relations

Box 3.1. Linkages between Ecosystem Services and Human Well-being: Security

Box 3.1. Linkages between Ecosystem Services and Human Well-being: Freedom of Choice and Action

Box 6.1 Local Adaptations of MA Conceptual Framework

Figure 1.1. Time Series of Intercepted Continental Runoff and Large Reservoir Storage, 1900-2000

Figure 1.6. Estimated Total Reactive Nitrogen Deposition from the Atmosphere

Figure 2.1. Estimated Global Marine Fish Catch, 1950-2001.

Figure 2.2. Trend in Mean Depth of Catch Since 1950.

Figure 3.1. Net National Savings Adjusted for Investments in Human Capital, Natural Resource Depletion, and Damage Caused by Pollution compared with Standard Net National Savings Measurements

Figure 3.2. Annual Flow of Benefits from Forests in Selected Countries

Figure 3.3. Economic Benefits Under Alternate Management Practices

Table 4.1. Increase in Nitrogen Fluxes in Rivers to Coastal Oceans

Figure 5.2. Comparison of Global River Nitrogen Export

Figure 5.4. Number of Undernourished Children Projected in 2050 Under MA Scenarios

Figure 5.5. Net Change in Components of Human Well-being Between 2000 and 2050 Under MA Scenarios.

Figure 8.1. Total Carbon Market Value per Year (in million dollars nominal)