Table 1 (of 4)

Plethodon: scores for white spots at different elevations
along Ball Creek road -- Coweeta Hydrologic Laboratory
September 8, 2001

Altitude Score for white spots
(feet) 0 1 2 3
2250 - - 1 11
2550 - 1 4 7
2700 2 1 6 2
2850 5 2 2 1
3150 9 4 1 -
3450 6 4 - -

Explanations of scores . . .

0 -- no white spots anywhere (absence of pigment on undersides does not count as white spots!)
1 -- few white spots near the front legs
2 -- white spots along sides from front to rear legs (small individuals can have a few spots on the back also)
3 -- white spots on sides and back

 

Table 2 (of 4)

Plethodon: scores for red on legs at different elevations
along Ball Creek road -- Coweeta Hydrological Laboratory
September 8, 2001

Altitude Score for red on legs
(feet) 0 1 2 3
2250 7 4 - -
2550 4 8 - -
2700 2 7 2 -
2850 - 2 6 1
3150 - 4 3 7
3450 - 4 4 5

Explanations of scores . . .

0 -- no red pigment on any leg
1 -- discontinuous spots of red on fore legs
2 -- continuous red along proximal parts of fore legs and some red on hind legs (more red on hind legs compensates for less on fore legs)
3 -- continuous red on proximal parts of all legs

 

Table 3 (of 4)

Plethodon:
scores for white spots in relation to scores for red on legs
(2550 - 2850 feet only)
September 8, 2001

Score for Score for white spots
red on legs 0 1 2 3
0 0 1 2 3
1 7 1 5 4
2 5 3 2 1
3 4 3 0 1

 

Table 4 (of 4)

Plethodon:
Hairston's index of hybridization (hybrid index)
at different elevations along Ball Creek road
September 8, 2001
(hybrid index = score for red on legs MINUS score for white spots)

Altitude Hybrid index (score for red MINUS score for white)
(feet) 3 2 1 0 -1 -2 -3
2250 - - - - 1 3 7
2550 - - - - 5 4 3
2700 - - 1 2 5 3 -
2850 - 3 4 2 1 - -
3150 4 5 4 - 1 - -
3450 4 2 5 2 - - -

Note that the hybrid index varies from 3 to -3.
"Pure" jordani have a score of 3 (leg score = 3, spot score = 0).
"Pure" "glutinosus" have a score of -3 (leg score = 0, spot score = 3).

Other species . . .

Desmognathus ochrophaeus 2