Table 2: Steps to Determine the Relative Similarity Score
Ecological Similarity Code |
Ecological Similarity Number |
Relative Similarity Description |
Relative Similarity Category |
Example |
Explanation |
Relative Similarity Score |
Empty Cell |
0 |
The reference and map do not correspond and they DO NOT SHARE ANY of the Major Types of Ecological Similarity. |
INCORRECT |
Rocky Mountain Aspen Forest & Woodland map and Intermountain Basins Mixed Salt Desert Scrub reference |
No Major Types of Ecological Similarity are appropriate for this error. Relationship is incorrect. |
1 |
A |
1 |
The reference and map do not correspond but they DO SHARE the same NLCD class, are juxtaposed, OR have a special substrate in common. |
SOMEWHAT SIMILAR |
Inter-Mountain Basins Mixed Salt Desert Scrub map and Rocky Mountain Gambel-Oak Mixed Montane Shrubland reference |
Both Ecological Systems are nested within the N50 NLCD Class and do not share any other Major Types of Ecological Similarity. Relationship is somewhat correct. |
2 |
C |
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D |
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B |
1 |
The reference and map do not correspond, but they DO SHARE dominant/codominant species OR have exactly 2 major types of Major Types of Ecological Similarity in common. |
MODERATELY SIMILAR |
Inter-mountain Basins Greasewood Flat map and Inter-Mountain Basins Mixed Salt Desert Scrub reference |
These Ecological Systems share C- Juxtaposition and D- Special Substrates. Relationship is moderately similar. |
3 |
AB |
2 |
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AC |
2 |
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AD |
2 |
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BC |
2 |
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BD |
2 |
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CD |
2 |
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ABC |
3 |
The reference and map do not correspond, but they DO SHARE 3 or more major types of Major Types of Ecological Similarity. |
VERY SIMILAR |
Rocky Mountain Aspen Forest & Woodland map and Inter-Mountain West Aspen - Mixed Conifer Forest & Woodland reference |
These Ecological Systems share A- Physiognomic Structure, B- Dominant Species Composition and C- Juxtaposition. Relationship is very similar. |
4 |
ABD |
3 |
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ACD |
3 |
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BCD |
3 |
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ABCD |
4 |
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Correct Match Cell |
5 |
The reference and map match. |
CORRECT |
Mogollon Chaparral map and Mogollon Chaparral reference |
Both map and reference match. Relationship is correct. |
5 |