Threat[*] | Level of Concern[1] | Extent | Occurrence | Frequency | Severity[2] | Causal Certainty[3] |
---|---|---|---|---|---|---|
Habitat Loss or Degradation | ||||||
Land Development | High | Widespread | Historic / Current | Continuous | High | High |
Double-crested Cormorant Nesting Colonies | High | Localized | Current | Seasonal | High | High |
Disturbance or Harm | ||||||
Cutting / Removal of Kentucky Coffee-trees | High | Widespread | Historic / Current | Continuous | High | High |
Changes in Ecological Dynamics or Natural Processes | ||||||
Alteration of the Water Regime (e.g., flood control) | Medium | Localized | Unknown | Continuous | Moderate | Medium |
Alteration of the Fire Regime (e.g., fire suppression) | Low / Medium | Localized | Current | Continuous | Moderate | Medium |
Exotic, Invasive, or Introduced Species/Genome | ||||||
Planting of Non-native Kentucky Coffee-trees | Medium | Widespread | Current | Continuous | Unknown | Low |
Terrestrial Invasive Plants (e.g., Dog-strangling Vine) | Low / Medium | Widespread | Anticipated | Continuous | Unknown | Low |
1Level of Concern: signifies that managing the threat is of (high, medium or low) concern for the recovery of the species, consistent with the population and distribution objectives. This criterion considers the assessment of all the information in the table.
2Severity: reflects the population-level effect (High: very large population-level effect, Moderate, Low, Unknown).
3Causal certainty: reflects the degree of evidence that is known for the threat (High: available evidence strongly links the threat to stresses on population viability; Medium: there is a correlation between the threat and population viability e.g. expert opinion; Low: the threat is assumed or plausible).
*Threat categories are listed in approximate order of decreasing significance based on existing information and knowledge.