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Table 2 Composition of anomalies from the laboratory experiment and field collection

From: Strigea robusta causes polydactyly and severe forms of Rostand’s anomaly P in water frogs

Anomaly type Control (0) Light (16) Intermediate (32) Heavy (48) Total for treatments 16, 32, 48 Field sites (n = 384)
Early Late Early Late Early Late Early Late
Anophthalmy 0.003
Mandibular hypoplasy 0.003
Non-developed operculum 0.10 0.03a 0.008
Brachydactyly   0.005
Stiff hindlimbs 0.003
Polydactyly on hindlimbs 0.50 0.70 0.50 0.60 0.61a 0.200
Severe cases of the anomaly P 0.20 0.30 0.30 0.21a 0.047
Normal tadpoles 1.00 1.00 0.20 0.30 0.20 0.18a 0.745
Survival of tadpoles 1.00 1.00 0.90 1.00 0.30 0.70 0.30 0.60 0.63
  1. aValues calculated from a total of 38 surviving tadpoles; non-developed operculum found in a tadpole with heavy variant of the anomaly P