Jackson Hole Pronghorn Study - WEST, Inc.

More documents

Recommendations

Info

The Green River Crossing: Twenty miles north of Trapper’s Point, pronghorn cross the Green River along a 3-mile (5 km) stretch located upstream from Warren Bridge and downstream from Black Butte (Figs. 8,9). Although radio-collared pronghorn seasonally travel 70-100 miles through the Green River Basin, this appears to be the only area where they actually cross the river. Interestingly, a separate radio-telemetry study found most mule deer that winter along the Wind River Range migrated northwest to summer in different mountain ranges (Sawyer and Lindzey 1999) and nearly all of those deer crossed the Green River in the same 3-mile (5 km) stretch. There are no obvious topographic features or river channel characteristics of the area that make it such a desirable river crossing. Nonetheless, telemetry data suggests 600-900 pronghorn and 3,000-4,000 mule deer use this river crossing twice a year. U.S. HWY {191} Warren Bridge # # # # # # # # # # # # # # # # # #### # # # # # # # # # # # 23 # # # # # # # Black Butte # # # # # # # # <strong>Pronghorn</strong> Locations BLM Private State USFS 1 mile (1.6 km) Green River Crossing Figure 8. Location and land status of area where pronghorn migration route crosses the Green River, between Warren Bridge and Black Butte. WY HWY {352} #
Figure 9. Orthophoto of area where pronghorn migration route crosses the Green River, between Warren Bridge and Black Butte. 24
Page 1 and 2: Jackson Hole Pronghorn Study Final
Page 3 and 4: TABLE OF CONTENTS Overview.........
Page 5 and 6: LIST OF FIGURES (cont.) III Page Fi
Page 7 and 8: 30 any-antelope tags and ran from m
Page 9 and 10: 4 Jenny Lake Baseline Flats # # # #
Page 11 and 12: Table 1. Capture location, date, fr
Page 13 and 14: Harper (1985) and Segerstrom (1997)
Page 15 and 16: Winter Range Distribution and Desig
Page 17 and 18: Figure 2. Winter (November-April, 1
Page 19 and 20: 14 Figure 4. Pronghorn migration ro
Page 21 and 22: Pronghorn then moved another 6-7 mi
Page 23 and 24: April: Pronghorn congregated around
Page 25 and 26: Bottlenecks/Areas of Concern We def
Page 27: Figure 7. Location and land status
Page 31 and 32: Figure 10. Location of pronghorn mi
Page 33 and 34: 28 Figure 12. Location of the Red H
Page 35 and 36: 30 Figure 14. Location of Bacon Cre
Page 37 and 38: DISCUSSION The pronghorn of Grand T
Page 39 and 40: GVRD or the upper Green River. In J
Page 41 and 42: Actions to be considered with feder
Page 43 and 44: LITERATURE CITED Baldwin, R.L. 1969
Page 45: Schroeder, R.L and A.W. Allen. 1992

Jackson Hole Pronghorn Study - WEST, Inc.

Create successful ePaper yourself

Delete template?

Save as template?