| Topic | Status and Trends | Confidence in Finding |
|---|---|---|
| Forests | ||
| Grasslands | ||
| Wetlands | ||
| Lakes and rivers | ||
| Coastal | ||
| Marine | ||
| Ice across biomes |
| Topic | Status and Trends | Confidence in Finding |
|---|---|---|
| Protected areas | ||
| Stewardship | ||
| Invasive non-native species | ||
| Contaminants | ||
| Nutrient loading and algal blooms | ||
| Acid deposition | ||
| Climate change | ||
| Ecosystem services |
| Topic | Status and Trends | Confidence in Finding |
|---|---|---|
| Agricultural landscapes as habitat | ||
| Species of special interest: economic, cultural or ecological | ||
| Primary productivity | ||
| Natural disturbances | ||
| Food webs |
| Topic | Status and Trends | Confidence in Finding |
|---|---|---|
| Biodiversity monitoring, research, information management, and reporting | not relevant | |
| Rapid changes and thresholds | not relevant | not relevant |
These tables present the status and trends of the key findings, as well as confidence in the conclusions drawn. The key findings are grouped into four themes and are interrelated.
The first two tables are aspects of the ecosystems themselves – biomes, habitat, wildlife, and ecosystem processes. The last two are human activities – alteration of ecosystems and actions taken to understand and conserve ecosystems.
By necessity, the time frames over which the ratings of status and trends are made vary – both because time frames that are meaningful for these diverse aspects of ecosystems vary and because the assessment is based on the best available information, which is over a range of time periods.
Beside each topic is a coloured circle indicating the status associated with the key finding. Within each circle is an arrow that shows both the direction and the rate of change. Beside some topics there are two circle/arrow combinations to represent a range or a dichotomy of status and trends.
The height of the stack of papers beside each key finding represents confidence in the finding, based on an evaluation of the adequacy of the supporting evidence. Confidence is lowered when the ecosystem aspect is not well understood or when data are inadequate in spatial or temporal coverage.
In the body of the main report at the beginning of each key finding section, these symbols are repeated along with short phrases summarizing the basis for the ratings.
Red flags in some key finding sections in the main report are used to highlight aspects of the findings that may be early warning signs of significant ecological change.
| Ecosystem Aspects (top two tables) | Human Activities (bottom two tables) | |
|---|---|---|
| likely to persist and likely able to recover from disturbances | actions adequate for conservation or showing good progress, or stressor not causing major impacts | |
| showing signs of stress | showing signs of insufficient actions, or signs of major impacts from stressor | |
| outside of range of natural variation, unstable, or likely not recovering | poor progress or insufficient actions, or stressors causing major impacts |
| IMPROVING at a rapid rate | |
| IMPROVING at a slow to moderate rate | |
| LITTLE CHANGE | |
| GETTING WORSE at a slow to moderate rate | |
| GETTING WORSE at a rapid rate | |
| UNKNOWN rate of change |
| LOW: limits in temporal and/or spatial extent of data, or gaps in understanding of the topic, making interpretation difficult | |
| MEDIUM: data coverage only fair and/or understanding of the topic poor | |
| HIGH: sufficient evidence and adequate understanding of the topic |