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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.
Jump to: Registration
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WORKSHOP AGENDA |
Monday - 2:00 to 5 p.m.
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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.
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Elements of Sampling
Review of basic principles
Sampling designs
Simple random sampling
Stratification
Cluster sampling
Selecting an optimal design
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Lab No. 1 Finite
Population Sampling
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Bird Surveys
History
Definitions
Indices or estimates of true density?
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Distance Sampling
Development of approaches from strips
Assumptions and models
Theory
Line transects
Point transects
- Lab
No. 2 – DISTANCE
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Wednesday - 8:15 a.m. to 5 p.m.
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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
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Surveys for Large Mammals
Historical development
Censuses vs. indices
Ground counts vs. aerial surveys
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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.
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Mark-Recapture/Resight Methods:
Lincoln-Peteresen, Schnabel, CAPTURE
- Lab
No. 5 -
MARK: Closed population estimation
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Cormack-Jolly-Seber: Open
populations, Banding to Nests to Robust Designs
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Lab No. 6
- MARK: Open
population estimation
Friday 8:15 a.m. to 12 noon.
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Multistate Models
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Design
Planning large scale surveys
Monitoring vs. intensive studies
Examples of applications
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Lab No. 7
- MARK: Multistate
models
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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.
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Date this page was last updated:
03/01/13
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