Jackson Hole Pronghorn Study - WEST, Inc.

TABLE OF CONTENTS
Overview.............................................................................. 1
Background.......................................................................... 1
Objectives............................................................................. 3
Study Area............................................................................ 3
Methods................................................................................ 5
I
Page
Results…………………………………………………………... 5
Capture...................................................................... 5
Serology.......................................................... 7
Reproductive Status..….................................. 7
Movement and Distribution Data……………………... 7
Fall 1998 Migration.................................................... 7
Fall 1999 Migration…………………………………….. 9
Winter Range Distribution and Designation.............. 10
Winter Range Fidelity…………………………………. 10
Spring 1999 Migration............................................... 10
Spring 2000 Migration…………………………………. 17
Summer Range Fidelity............................................. 17
Fence Survey…………………………………………... 18
Bottlenecks/Areas of Concern……………………….. 20
Trapper’s Point Bottleneck…………………… 20
The Green River Crossing…………………… 23
Bridger Teton National Forest Boundary ....... 25
Gros Ventre River Drainage........................... 25
Mortality/Survival....................................................... 31
Discussion…………………................................................... 32
Management Recommendations…………………………….. 35
Literature Cited..................................................................... 38
Appendix I: Locations of radio-collared pronghorn
sorted by frequency and date, July 1998- July 2000... 41