Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Accommodating unmodeled heterogeneity in double-observer distance sampling surveys.

D L Borchers1, J L Laake, C Southwell

  • 1Research Unit for Wildlife Population Assessment, The Observatory, Buchanan Gardens, University of St. Andrews, Fife, KY16 9LZ, Scotland. dlb@mc.st-and.ac.uk

Biometrics
|August 22, 2006
PubMed
Summary

Mark-recapture models often ignore distance data. This study introduces a new model that uses observed distances to improve accuracy, especially for aerial surveys of Antarctic crabeater seals.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Hoops, loops and eyewitness reliability: a history of biologically impossible aquatic monsters.

Endeavour·2025
Same author

Double-observer line transect surveys with Markov-modulated Poisson process models for animal availability.

Biometrics·2015
Same author

A Unifying Model for Capture-Recapture and Distance Sampling Surveys of Wildlife Populations.

Journal of the American Statistical Association·2015
Same author

Using hidden Markov models to deal with availability bias on line transect surveys.

Biometrics·2013
Same author

Investigations of peritoneal and intestinal infections of adult hookworms (Uncinaria spp.) in northern fur seal (Callorhinus ursinus) and California sea lion (Zalophus californianus) pups on San Miguel Island, California (2003).

Parasitology research·2011
Same author

Investigation of first year biotic and abiotic influences on the recruitment of pike Esox lucius over 48 years in Windermere, UK.

Journal of fish biology·2010

Area of Science:

  • Wildlife population estimation
  • Distance sampling methodology
  • Ecological survey techniques

Background:

  • Mark-recapture models are standard for population estimation.
  • These models often assume independent detection probabilities.
  • Double-observer distance sampling data contain unused information on relative detectability.

Purpose of the Study:

  • To develop an improved mark-recapture model for distance sampling data.
  • To incorporate information on relative detectability from observed distance distributions.
  • To address limitations of the zero correlation assumption in standard models.

Main Methods:

  • Developed a novel mark-recapture-based model.
  • Utilized the observed distribution of distances to relax the zero correlation assumption.

Related Experiment Videos

  • Applied the model to aerial survey data of Antarctic crabeater seals.

    • Main Results:

    • The new model effectively uses distance distribution information.
    • It demonstrates improved handling of unmodeled heterogeneity.
    • Successful application to crabeater seal aerial survey data.

    Conclusions:

    • Mark-recapture models can be enhanced by incorporating distance data.
    • The developed model offers a more robust approach to population estimation.
    • This method improves the analysis of wildlife surveys with distance sampling.