Using
Time Series Analysis to Examine Trends in Segments of the Rocky Mountain
Population of Trumpeter Swans
Preliminary
Data and Results [under
construction]
As the project
progresses, more information will be available regarding the survey, itself.
Please remember that the essence of the project is to gain a better understanding
of trends in segments of the population by examining variability in the
data. Presented below are plots of the raw data.
Before we are
finished we will have many people to thank, but at this time we wish to
acknowledge the following, all from the USDI - Fish and Wildlife Service:
Brad Bortner (Migratory Bird Coordinator, Region 1); John Cornely (Migratory
Bird Coordinator, Region 6); Mark Otto (Office of Migratory Bird Management);
Bob Trost (Pacific Flyway Representative); and Jackie Vann (Red Rock Lakes
National Wildlife Refuge).
-- Dan
Goodman, Rick Sojda, Chris Wright
Construct
your own plots of September Survey Data (1971-1999), selecting the
areas for which you would like to view combined data. This
will provide plots of the raw data only and does not yet provide estimates
of precision. [under
construction]
View
Plots of September Survey Data (dates vary by area)[the category
"adults" does not distinguish among immature and mature white birds; these
are simply, all the "white birds"] This,
too, will provide plots of the raw data only and does not yet provide estimates
of precision.
-
Idaho -- All Areas [1932-1999]
-
Idaho -- Harrimann State
Park [1949-1999]
-
Montana -- All Areas
[1932-1999]
-
Montana -- Centennial
Valley, other than Red Rock Lakes National Wildlife Refuge [1932-1999]
-
Montana -- Red Rock
Lakes National Wildlife Refuge [1932-1999]
-
Wyoming -- All Areas
[1931-1999]
-
Wyoming -- Grand Teton
National Park [1931-1999]
-
Wyoming -- Yellowstone
National Park [1931-1999]
-
The Entire Tri-State
Segment of the Rocky Mountain Population
Return to
the
beginning of Plots of the September
Survey Data
Return to
Using
Time Series Analysis...Trumpeter Swans web page
Return to
the
Swan Decision Support System home page
USDI
- Geological Survey
Biological
Resources Division
Northern
Rocky Mountain Science Center
Maintainer: Rick Sojda
(sojda@swan.msu.montana.edu)
