Advertisement
LabX
LabX

Identifying Wolves by Their Howls

Researchers can tell wolves apart by analyzing the pitch and volume of their vocalizations.

By | July 23, 2013

FLICKR, U.S. FISH AND WILDLIFE SERVICE - MIDWEST REGIONA new computer program can identify individual wild wolves by their howls with high accuracy, according to a study published yesterday (July 22) in the journal Bioacoustics. The technique should be useful for conservationists monitoring wild wolf populations.

Previously, computer programs for recognizing wolf vocalizations have relied solely on analyzing the pitch of the howls. These programs could correctly identify individual wolves up to 76 percent of the time.

The new method measures pitch, but it also measures the volume, or amplitude, of the wolfs’ calls. The researchers validated their program using recordings of the Eastern wolf that were in the collections of the British Library. When the program was tested against 67 high-quality recordings of wolf howls from 10 wild individuals, it matched the calls to individual wolves with 100 percent accuracy. The researchers also tested the program on 112 recordings of 109 wild wolves howling in various groups. The program was able to match howls to individuals around 97 percent of the time.

“In scientific terms this is really exciting, because it means that if we hear a howl on one night, we can tell if it is or isn’t the same wolf that you hear on subsequent nights,” Holly Root-Gutteridge, a coauthor of the paper and a graduate student at Nottingham Trent University, told BBC Nature.

Advertisement

Add a Comment

Avatar of: You

You

Processing...
Processing...

Sign In with your LabX Media Group Passport to leave a comment

Not a member? Register Now!

LabX Media Group Passport Logo
Advertisement
BD Bioscience
BD Bioscience

Popular Now

  1. Antibody Maker Loses License Over Animal Welfare Violations
  2. ORI: Researcher Faked Dozens of Experiments
    The Nutshell ORI: Researcher Faked Dozens of Experiments

    A former scientist at the University of Michigan and the University of Chicago made up more than 70 experiments on heart cells, according to the Office of Research Integrity.

  3. Exploring Emotional Contagion
  4. Amyloid Thwarts Microbial Invaders
    Daily News Amyloid Thwarts Microbial Invaders

    Alzheimer’s disease–associated amyloid-β peptides trap microbes in the brains of mice and in the guts of nematodes, a study shows. 

Advertisement
LabX
LabX
Advertisement
Biosearch Technologies
illumina Corporate
illumina Corporate