. Ecuador : Cabeceras Cofanes-Chingual. Natural history; Biodiversity; Wildlife conservation. Figure 23. Dominance-diversity curve for the herpetofauna at Rio Río Verde We registered 144 individuals representing 25 species (22 amphibians and 3 reptiles). The amphibians belong to six families, of which Hylidae is best represented with six genera and 11 species, followed by Strabomantidae with one genus and 6 species. One species represents each of the remaining families of the assemblage (Centrolenidae, Dendrobatidae, Bufononidae, Leptodactylidae, Colubridae, Hoplocercidae, and Polychro
. Ecuador : Cabeceras Cofanes-Chingual. Natural history; Biodiversity; Wildlife conservation. Figure 23. Dominance-diversity curve for the herpetofauna at Rio Río Verde We registered 144 individuals representing 25 species (22 amphibians and 3 reptiles). The amphibians belong to six families, of which Hylidae is best represented with six genera and 11 species, followed by Strabomantidae with one genus and 6 species. One species represents each of the remaining families of the assemblage (Centrolenidae, Dendrobatidae, Bufononidae, Leptodactylidae, Colubridae, Hoplocercidae, and Polychrotidae). The presence of Cochranella puyoensis stands out; this is an endemic species of south-central Ecuador categorized as Endangered (EN). In addition, our registry of Rhinella dapsilis is notable because it was previously only known to inhabit Amazonian lowlands below 300 m. Absolute richness and diversity measures (H') obtained for the four evaluated sites registered an average 9 species (H'= bits), ranging from 7 (H'= bits) to 12 (H'= bits). Abundance in the four studied sites averaged 39 individuals, ranging from 22 to 53. Dominance among sites varied. Scinax ruber. Pristimantis grp. conspicillatus, Osteocephalus planiceps, and Dendropsophus parviceps were each dominant in their respective sampled sites. The dominance-diversity curve of the assemblage (Fig. 23) shows that 87% of its species possess low dominance values and that 18% of total abundance is concentrated in one species {Osteocephalus planiceps). Comparison between the three sampled camps Other than Pristimantis chloronotus (which was found at both Laguna Negra and Alto La Bonita), all of the other species were found at only one camp. This shows us that the altitudinal differences and distinct vegetation formations result in different faunal communities. Furthermore, each camp evaluated showed interspecific variations among sampled sites. The five sampled sites at Laguna Negra were highly similar
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