Physalaemus signifer (Girard, 1853)
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https://doi.org/ 10.11646/zootaxa.4725.1.1 |
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lsid:zoobank.org:pub:B137F19A-2C50-476C-8F13-4F049253B361 |
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https://treatment.plazi.org/id/D435E640-FFFC-FFC2-BE8B-F89EFD88FEF5 |
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Physalaemus signifer |
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Physalaemus signifer clade
Species in this clade usually have A calls with low fundamental frequency, below 500 Hz (except P. bokermanni ; see below). Usually the fundamental band is absent or with very low energy, barely visible in audiospectrograms (all species except some calls of P. irroratus , P. obtectus , and P. nanus ). Most of the species (66.6 %) have more than one call type. Nonlinear phenomena, subharmonics and deterministic chaos, are common in the clade (see P. angrensis , P. atlanticus , P. bokermanni , P. camacan , P. crombiei , P. irroratus , P. moreirae , P. nanus , P. obtectus , P. signifer , and P. spiniger ) even though usually restricted to parts of some calls (i.e., polymorphic in presence and position; vs. present in all calls in the same call positions in species of P. cuvieri clade). Eight species ( P. angrensis , P. atlanticus , P. bokermanni , P. crombiei , P. irroratus , P. moreirae , P. nanus , and P. obtectus ) have calls with strong PAM, with silence periods between pulses.
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