Significance of size, temperature and call attributes to sexual selection in Bufo woodhousei australis.

Only frequency of advertisement calls was correlated (negatively) with size. Observations of the same individuals on successive nights showed there was substantial variation in call attributes independent of temperature. Only pulse rate was correlated (positively) with body temperature; frequency and call duration were independent of body temperature over a 5oC range. Females might distinguish male of different sizes on the basis of frequency, but temperature has no effect on this possible size indicator.-from Author