Fish and Wildlife Population Ecology  - Dr. Edward O. Garton

 

Animal Abundance: Estimating "True" Number of Birds, Mammals  or Fish Present During a Study

A workshop presented by
Dr. Edward O. Garton, UI Emeritus Professor
of Wildlife Ecology and Applied Statistics

May 20-24, 2013
Moscow, Idaho

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Wildlife biologists, conservation biologists and animal researchers in general are being challenged to provide unbiased estimates of the "true" number of birds or mammals present on a site. Traditional methods such as point counts for birds are being denigrated as nothing more than indices of abundance biased by observers abilities and attitudes.  Recent developments in theory and methods provide invaluable assistance to biologists, managers, and researchers facing this challenge. This five day workshop (May 20-24, 2013) is designed especially for wildlife, conservation, and other natural resource professionals needing an introduction or in-depth summary of recent developments in our approaches to eliminating observer and other sources of bias from estimates of abundance and density of birds and mammals. Participants will learn how to use mark-resight methods for bird, mammal and fish populations, paired or double observer approaches to bird surveys as well as radio/satellite-telemetered mammals to remove visibility bias from aerial surveys. Participants will gain hands-on experience in the use of statistical and proprietary analysis software by analyzing recent data from bird and mammal surveys in the Pacific Northwest.

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WORKSHOP AGENDA

Monday - 2:00 to 5 p.m.

  • Welcome and Introduction
  • Review of Basic Concepts
    Individual, demes/subpopulations, populations, and metapopulations
    Spatial distributions
    Population characteristics and processes
    Statistical populations and samples
    Estimation from line transects and variable circular plots
    Aerial surveys

    Mark-resight

Tuesday - 8:15 a.m. to 5 p.m.

  • Elements of Sampling
    Review of basic principles
    Sampling designs
        Simple random sampling
        Stratification
        Cluster sampling

    Selecting an optimal design
  • Lab No. 1 Finite Population Sampling
  • Bird Surveys
    History
    Definitions
    Indices or estimates of true density?
  • Distance Sampling
    Development of approaches from strips
    Assumptions and models
    Theory
    Line transects
    Point transects
  • Lab No. 2 – DISTANCE

Wednesday  - 8:15 a.m. to 5 p.m.

  • Probability of detection
    Double observer approaches
    Paired observer variable circular plots
    Logistic modeling
    Information Theory and Model Evaluation
  • Lab No. 3 – POVCP Paired Observer Variable Circular Plot
  • Surveys for Large Mammals
    Historical development
    Censuses vs. indices
    Ground counts vs. aerial surveys
  • Visibility Bias in Surveys
    Historical development
    Double sampling
    Modeling probability of detection
    Survey design and efficiency
  • Lab No. 4 – AERIAL SURVEY

Thursday   8:15 a.m. to 5 p.m.

  • Mark-Recapture/Resight Methods:  Lincoln-Peteresen, Schnabel, CAPTURE
  • Lab No. 5  -  MARK: Closed population estimation
  • Cormack-Jolly-Seber: Open populations, Banding to Nests to Robust Designs
  • Lab No. 6  -  MARK: Open population estimation

Friday   8:15 a.m. to 12 noon.

  • Multistate Models
  • Design
    Planning large scale surveys
    Monitoring vs. intensive studies
    Examples of applications
  • Lab No. 7  -  MARK: Multistate models

 

 

LOCATION AND TIME  -  University of Idaho, Moscow, Idaho

When taught on campus, all meetings will be held at the University of Idaho, Moscow, Idaho. Meetings will run from 2 p.m. on Monday, May 20 till noon on Friday May 24, 2013.  

PREREGISTRATION

The registration fee is $850 per participant. You may register on-line or print out the registration form and mail/FAX with payment to the Department of Fish and Wildlife Resources, University of Idaho, Moscow, ID 83844-1136.  A late fee of $100 will be added if check/PO/Invoice/Credit-Card payment not received 2 weeks prior to start of workshop.

Jump to:  Registration Form

LOCATION AND TIME

For courses on campus, all meetings will be held at the College of Natural Resources (Room 14), 6th and Line Street, University of Idaho, Moscow, Idaho. Meetings will run from 2:00 p.m. on Monday through 12:00 noon on Friday.

CREDIT

Workshop participants will accrue 32 contact hours toward The Wildlife Society's Professional Development Program, or credits toward other societies (AFS, ESA, SCB) continuing education requirements for professionals.  One graduate credit for Wlf 504 is available from the University of Idaho's College of Graduate Studies for an additional fee.  Graduate credit requires completing all lab assignments and writing a short paper after the course concludes.

QUESTIONS

For transportation, registration, or logistical information, please call the Department of Fish and Wildlife Resources at 208-885-6434 or fish_wildlife@uidaho.edu.

 

Date this page was last updated:  03/01/13