Table 2. Cases of false positives and false negatives for the detection of Batrachochytrium dendrobatidis (Bd) infection produced by the use of the three oral deformities studied as proxies (JS, TR and JT) and for the JSD-proxy.
JS, TR and JT | JSD-Proxy | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Nd | False positives | Nn | False negatives | Nd | False positives | Nn | False negatives | |||||
n | % | n | % | n | % | n | % | |||||
Aplastodiscus albosignatus | 130 | 27 | 20.8 | 67 | 21 | 31.3 | 105 | 8 | 7.6 | 92 | 27 | 29.3 |
Boana albopunctata | 33 | 24 | 72.7 | 30 | 3 | 10.0 | 13 | 4 | 30.8 | 50 | 3 | 6.0 |
Boana faber | 7 | 4 | 57.1 | 26 | 5 | 19.2 | 2 | 0 | 0.0 | 31 | 6 | 19.3 |
Scinax hayii | 13 | 1 | 7.7 | 19 | 4 | 21.1 | 11 | 0 | 0.0 | 21 | 5 | 23.8 |
Crossodactylus caramaschii | 8 | 6 | 75.0 | 26 | 3 | 11.5 | 6 | 4 | 66.7 | 28 | 3 | 10.7 |
Physalaemus cuvieri | 4 | 4 | 100 | 16 | 1 | 6.25 | 1 | 1 | 100 | 19 | 1 | 5.26 |
TOTAL | 195 | 66 | 33.8 | 184 | 37 | 20.1 | 138 | 17 | 12.3 | 241 | 45 | 18.7 |
Nd = tadpoles with oral deformities corresponding to JS = lack of keratinization only in jaw sheaths, TR = lack of keratinization, with non-disrupted supporting tissue, only in tooth rows, JT = lack of keratinization in jaw sheaths and tooth rows, and JSD-Proxy = jaw sheath dekeratinization with or without dekeratinization in tooth rows; Nn = normal tadpoles.