• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Saturday, August 2, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Biology

Copy cats: When is a bobcat not a bobcat?

Bioengineer by Bioengineer
January 23, 2019
in Biology
Reading Time: 3 mins read
0
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

Telling similar animals apart challenges even the experts

IMAGE

Credit: James Gagnon


Two UBC Okanagan biologists, who have publicly solicited images of wild cats for their research, have answered that question.

Their recently published study explains how hard it can be when it comes to wildlife classification–even experts have difficulty agreeing on whether a cat in a picture is a bobcat or a lynx.

Biology Professor Karen Hodges and master’s student TJ Gooliaff collected and compared wildlife images for several years as part of their research tracking bobcat and lynx distributions in British Columbia. Camera trapping and solicitation of wildlife pictures through citizen science have become common tools in ecological research, explains Gooliaff.

While it’s generally easy to collect many images of animals, some species are difficult to tell apart, making species classification challenging.

“Camera-trapping and citizen-science studies collect many wildlife images for which correct species classification is crucial,” says Gooliaff. “Even low misclassification rates can result in erroneous estimation of the geographic range or habitat use of a species–including underestimation of the occupancy, habitat preferences or distribution of a species. This potentially hinders conservation and management efforts.”

There are some species, such as mountain goats and porcupines, where it’s obvious. But for others, including bears, deer, lemurs, wild cats and antelopes, classification to a species may be unreliable as the animals can be similar in size, shape or colour. It gets even trickier when the pictures are blurry, taken in poor lighting, show only part of the animal or when only one image is available for a given animal.

In a 2018 study published in the Journal of Wildlife Management, Gooliaff and Hodges solicited 4,399 images of bobcats and lynx from the public across British Columbia to examine the provincial distribution of each species. They used pictures, trapping records and other data sources to develop current range maps.

Because lynx and bobcats are similar, Gooliaff and Hodges then measured agreement among experts who were asked to distinguish between bobcats and lynx from those images. The researchers asked 27 individual bobcat and lynx authorities to classify the species in a subsample of 300 images to see how often the experts agreed on whether it was a bobcat or a lynx.

What became clear was that the experts found it difficult to tell bobcats and lynx apart–indeed, many images were labelled as “unknown” by the experts–and they did not always agree with each other. Experts were inconsistent even with themselves, changing their classifications of some images when they were asked to reclassify the same pictures months later.

Gooliaff and Hodges also examined if agreement among experts varied with what part of the animal was in each image (paws, head, tail, etc.), the habitat in the background, and whether it was day or night. These factors all affected how many experts agreed on the species in each image.

“These results are particularly troubling given that the images were all of high photographic quality,” says Gooliaff.

Hodges says this study helps researchers improve how they work with images, by knowing when misidentifications are most likely. Further, classification of images of similar?looking species should not be relied upon for critical conservation or management decisions. Instead, physical or genetic evidence should be required in these cases.

She also emphasises that pictures provided by the public are becoming a powerful tool in wildlife research and eventual conservation and management efforts. This research benefits citizen science and image-based studies, as they continue to refine how people use submitted images.

“We encourage researchers who use images to be more willing to call the species in a picture “unknown” or to use them as a screen for habitats or regions where more survey work should be done, rather than trusting images alone.”

###

The image study, partially funded by a Natural Sciences and Engineering Research Council grant, was recently published in Ecology and Evolution.

Media Contact
Patty Wellborn
[email protected]
250-317-0293

Original Source

https://news.ok.ubc.ca/2019/01/23/copy-cats-when-is-a-bobcat-not-a-bobcat

Related Journal Article

http://dx.doi.org/10.1002/ece3.4567

Tags: BiodiversityBiologyClimate ChangeClimate ScienceCollaborationEcology/EnvironmentPollution/RemediationPopulation Biology
Share12Tweet8Share2ShareShareShare2

Related Posts

blank

AI-Driven Protein Design Advances T-Cell Immunotherapy Breakthroughs

August 1, 2025
Melanthiaceae Genomes Reveal Giant Genome Evolution Secrets

Melanthiaceae Genomes Reveal Giant Genome Evolution Secrets

August 1, 2025

“Shore Wars: New Study Tackles Oyster-Mangrove Conflicts to Boost Coastal Restoration”

August 1, 2025

Physicists Unravel the Enigma of Mysterious Membrane Dynamics

August 1, 2025
Please login to join discussion

POPULAR NEWS

  • Blind to the Burn

    Overlooked Dangers: Debunking Common Myths About Skin Cancer Risk in the U.S.

    60 shares
    Share 24 Tweet 15
  • Dr. Miriam Merad Honored with French Knighthood for Groundbreaking Contributions to Science and Medicine

    46 shares
    Share 18 Tweet 12
  • Study Reveals Beta-HPV Directly Causes Skin Cancer in Immunocompromised Individuals

    38 shares
    Share 15 Tweet 10
  • Sustainability Accelerator Chooses 41 Promising Projects Poised for Rapid Scale-Up

    35 shares
    Share 14 Tweet 9

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Macrophage-T Cell Interaction Boosts SLAMF1 in TB Defense

Strawberry Notch 1 Protects Neurons by Regulating Yeats4

Revolutionary AI Tool Requires Minimal Data to Analyze Medical Images

  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.