[MARMAM] New publication on the effect of jamming stimuli on echolocation behavior

Laura Kloepper lkloepper at saintmarys.edu
Mon Mar 18 14:31:11 PDT 2019


Dear Colleagues,

On behalf of myself and my coauthor Brian Branstetter, we are pleased to
announce our publication in *The Journal of the Acoustical Society of
America* titled "The effect of jamming stimuli on the echolocation behavior
of the bottlenose dolphin, *Tursiops truncatus.*"

Abstract: Echolocating bats and odontocetes face the potential challenge of
acoustic interference from neighbors, or sonar jamming. To counter this,
many bat species have adapted jamming avoidance strategies to improve
signal detection, but any such avoidance strategies in dolphins is unknown.
This study provides an investigation into whether dolphins modify
echolocation behavior during jamming scenarios. Recorded echolocation
clicks were projected at different click repetition rates and at different
aspect angles relative to two dolphins' heads while each dolphin was
performing a target detection task. Changes in the timing, amplitude, and
frequency of structure of the dolphin's emitted signals were compared to
determine if and how dolphins modify echolocation when faced with
potentially interfering conspecific echolocation signals. The results
indicate that both dolphins demonstrated different responses when faced
with jamming scenarios, which may reflect optimal strategies according to
individual auditory perception abilities.

This paper can be accessed at
https://asa.scitation.org/doi/full/10.1121/1.5093636 or by requesting a PDF
from lkloepper at saintmarys.edu.

Regards,
-- 
Dr. Laura Kloepper
Assistant Professor
Department of Biology
Saint Mary's College
Notre Dame, IN 46556
lkloepper at saintmarys.edu
574-284-4668
@ProfLKloepper
laurakloepper.net  <http://laurakloepper.net>
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