G-Ranks are used to specify the vulnerability of a species on a worldwide scale. The "Score Value" contributes to the "Priority Score" for the Arkansas species of conservation concern. What is a Priority Score?
| G Rank |
Description |
Score Value |
| G? |
Uncertain global ranking |
1 |
| G1 |
Critically imperiled species |
16 |
| G1? |
Critically imperiled (inexact numeric rank) |
16 |
| G1G2 |
Critically imperiled (uncertain rank) |
12 |
| G1G3 |
Critically imperiled (uncertain rank) |
10 |
| G1Q |
Critically imperiled (questionable taxonomy) |
16 |
| G1T1 |
Critically imperiled subspecies |
16 |
| G2 |
Imperiled species |
8 |
| G2? |
Imperiled (inexact numeric rank) |
8 |
G2G3 |
Imperiled (uncertain rank) |
6 |
| G2G4 |
Imperiled (uncertain rank) |
5 |
G2Q |
Imperiled (questionable taxonomy) |
8 |
| G3 |
Vulnerable species |
4 |
| G3G4 |
Vulnerable (uncertain rank) |
3 |
| G3G4Q |
Vulnerable (uncertain rank, questionable taxonomy) |
3 |
| G3G4T1Q |
Vulnerable (uncertain rank, critically imperiled subspecies, questionable taxonomy) |
16 |
| G3G5 |
Vulnerable (uncertain rank) |
2.5 |
| G3Q |
Vulnerable (questionable taxonomy) |
4 |
| G3T1T2 |
Vulnerable (critically imperiled or imperiled subspecies) |
12 |
| G4 |
Apparently secure species |
2 |
| G4G5 |
Apparently secure (uncertain rank) |
1.5 |
| G4T1 |
Apparently secure (critically imperiled subspecies) |
16 |
| G4T2Q |
Apparently secure (imperiled subspecies, questionable taxonomy) |
8 |
| G4T3 |
Apparently secure (vulnerable subspecies) |
4 |
G4T3Q |
Apparently secure (vulnerable subspecies, questionable taxonomy) |
4 |
| G4T3T4 |
Apparently secure (vulnerable or apparently secure subspecies) |
3 |
G4T4 |
Apparently secure (apparently secure subspecies) |
2 |
| G5 |
Secure |
1 |
| G5T? |
Secure (inexact number rank for subspecies) |
1 |
| G5T1T3 |
Secure (critically imperiled or imperiled subspecies) |
10 |
| G5T2 |
Secure (imperiled subspecies) |
8 |
| G5T4 |
Secure (apparently secure subspecies) |
2 |
| G5T5 |
Secure (secure subspecies) |
1 |
| GH |
Possibly extinct |
16 |
| GHQ |
Historic record of questionable taxonomy |
16 |
| GX |
Presumed extinct |
16 |
