Simple Syllabic Calls Accompany Discrete Behavior Patterns in Captive <i>Pteronotus parnellii</i>: An Illustration of the Motivation-Structure Hypothesis

<table>(a) Fighting among two males.  (b), (c), and (d) Amplitude envelopes (above) and spectrograms (below) of associated simple syllabic calls. (e) A relatively long sequence of a composite consisting of long, wrinkled FM, broadband noise and sinusoidal FM type of simple syllabic elements.  Abbreviations: Freq. = frequency; V = volts.</table>

The Scientific World Journal

fig5

Figure 5

Figure 5: Simple Syllabic Calls Accompany Discrete Behavior Patterns in Captive <i>Pteronotus parnellii</i>: An Illustration of the Motivation-Structure Hypothesis 

Figure 5 | Simple Syllabic Calls Accompany Discrete Behavior Patterns in Captive Pteronotus parnellii: An Illustration of the Motivation-Structure Hypothesis 