| Environmental envelopes |
Envelopes ok; no further edits recommended |
Envelopes ok; no further edits recommended |
Envelopes ok although species known to have large inter-annual changes in habitat usage are only inadequately captured by single annual envelope |
Envelopes ok but may still be improved by adjusting parameters (>2); or available environmental parameters are unable to adequately describe species occurrence |
Computer-generated map |
| Area restrictions |
Bounding box/basins complete and with good fit to known distribution |
Bounding box/basins complete and with good fit to known distribution |
Uses bounding box/basins; no further improvements of bounding box/basins possible but areas of false predicted presence remain |
No bounding box/basins; defined by FAO areas that encompass entire known range |
Computer-generated map |
| Point data/good cells |
Adequately large sample size; samples cover representative portion of species range; no apparent bias introduced; no good cells needed to be added/removed |
Adequately large sample size; samples cover representative portion of species range; biases were corrected by adding or removing good cells |
Medium sampe size and coverage of known species range but strong effort biases due to heterogenous sampling effort; possible point data bias/output can only be improved with addition/deletion of a large number good cells |
Low sample size, non-representative coverage of species range by sampling |
Computer-generated map |
| Predicted range of occurrence |
In very good agreement with known range/significant statistical relationship between predictions and independent survey data |
In good agreement with known range |
Approximates known range but possibly with some areas of false predicted presence or absence |
Approximates known range but includes large areas of false predicted presence or absence |
Computer-generated map |
| Predicted relative likelihood of occurrence |
In very good agreement with known relative occurrences/significant statistical relationship between predictions and independent survey data |
In good agreement with known relative occurrences |
Good correspondence with overall range but large discrepancies between predictions and known concentrations of high species occurrence |
Good correspondence with overall range but large discrepancies between predictions and known concentrations of high species occurrence |
Computer-generated map |