Table 2: Genetic, morphological, ecological and ethological differences within the amazonum/pallescens group.

Taxon DNA Morphological between Species Morphological within Species Ecological* Altitude Call Frequences Maximum
amazonum no Major to pallescens Minor (size) Yes (Uatuma-Trombetas moist forest, Monte Alegre varzea) < 200 m
microtera no Major to pallescens Minor (size) Yes (Tapajós-Xingu moist forest, Xingu-Tocantins-Araguaia moist forest) < 200 m 16,1 kHz / 18,4 kHz
araguaiaensis no Major to pallescens Medium (breast colouration) Yes (Mato Grosso seasonal forest) < 250 m
pallescens no Major to amazonum Minor (breast colouration, forehead, size) Yes (Madeira-Tapajós moist forest, Tapajós-Xingu moist forest) 100 - 350 m 22,1 kHz
melanoides no Major to amazonum Minor (breast colouration, forehead, size) Yes (Mato Grosso seasonal forest) 200 - 450 m 20,7 kHz

* different habitat types based on Fund [35]

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