Publisher Summary Environmental noise can affect acoustic communication through limiting
the broadcast area, or active space, of a signal by decreasing signal-to-noise ratios at the …

Crocodilians and birds are the modern representatives of Phylum Archosauria. Although
there have been recent advances in our understanding of the phylogeny and ecology of …

Abstract The Australian Zebra Finch is widely used by researchers and teachers in many
scientific disciplines where it is the preferred subject for investigations ranging from anatomy …

In cities with intense low-frequency traffic noise, birds have been observed to sing louder
and at a higher pitch. Several studies argue that higher song pitch is an adaptation to reduce …

This paper outlines a cognitive and comparative perspective on human rhythmic cognition
that emphasizes a key distinction between pulse perception and meter perception. Pulse …

We tested the ability of birds to detect and discriminate natural vocal signals in the presence
of masking noise using operant conditioning. Masked thresholds were measured for …

Department of Biology, University of Maryland, College Park, MD; apopper@ umd. edu One
of the “problems” in working with aquatic animals is that they are not nearly as easy to …

The comparative hearing of birds and reptiles should always be considered together. It is
clear from the vertebrate fossil record that birds and reptiles split over 200 million years ago …

Some animals that use sound to communicate compensate for interference from background
noise by adjusting the amplitude of their vocalizations as environmental noise levels vary …

Complex vocalizations, such as human speech and birdsong, are characterized by their
elaborate spectral and temporal structure. Because auditory neurons of the zebra finch …