Use of a spatial decision support system for analysis of habitat use by wintering northern pintails

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Abstract

A multi-functional spatial decision support system (SDSS) was,developed at the spatial analysis branch Of the National Wetlands Research Center, and the wildlife analysis module of the system was used to study habitat use by wintering pintail. We instrumented female pintails at Catahoula Lake, Louisiana, in October of 1992-94 and located the instrumented birds weekly through the following March. Using the SDSS developed in an ARC/INFO geographical information system (GIS) - environment. We were able to visualize movements of instrumented pintails over varied environmental conditions and landscape features to determine habitat use. Weather data were used to determine factors important in the timing of movements. The analyses indicated that female pintails dispersed from Catahoula Lake, Louisiana, in three general patterns, based upon wetland conditions. Timing of movements coincided with periods of precipitation or disturbance, primarily hunting. Pintails which arrived at Catahoula Lake in October and November remained in the agricultural areas of Louisiana and Arkansas, with very limited movements to the coastal marshes or westward into the agricultural areas of Texas. Northward movements into Arkansas occurred whenever there was substantial rainfall in the agricultural regions, and northward movements generally stopped at the frost-line. No differences in adult or juvenile female movement patterns were apparent.

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Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Use of a spatial decision support system for analysis of habitat use by wintering northern pintails
Year Published 1997
Language English
Publisher The Stationery Office
Contributing office(s) National Wetlands Research Center, Wetland and Aquatic Research Center
Description 3 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Effect of habitat loss and change on waterbirds
First page 83
Last page 85
Conference Title 10th International Waterfowl Ecology Symposium
Conference Location Portugal
Conference Date September 18-21, 1995
Country United States
State Louisiana
Other Geospatial Catahoula Lake
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