Documentation of Existing Conditions in the Central Platte Valley

• File Number: 86
• Description: related to the Platte River Endangered Species Partnership ‎(aka Platte River Recovery Implementation Program or PRRIP)‎
• State: CO
• State: NE
• State: WY
• Basin: South Platte
• Water Division: 1
• Date: 6/2/1999
• Author: URS Greiner Woodward Clyde Federal Services
• Title: Documentation of Existing Conditions in the Central Platte Valley, Draft Report
• Water Supply Pro - Doc Type: Report/Study

4.1 History .......................................................................... ............................4 -1
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3.3
Biology ...........................................................:............: ............................3 -3
TABLE OF CONTENTS
3.3.1 Life History ... .. .................... ...
Section1 Introduction ........................................................................................ ............................1
-1
Section 2 Environmental Setting .................................................................... ...............................
2 -1
3 -5
2.1 Description of the Central Platte Study Area ............ ............................... 2 -1
2.2 Vegetation and Land Cover Types ............................ ...............................
2.2.1 Croplands ...................................................... ...............................
2 -1
2 -2
2.2.2 Grasslands ..................................................... ...............................
2 -2
3 -9
2.2.3 Riverine Cover Types
3.4.3 Platte River Habitat Decline ......................... ...............................
2.2.4 Other Types ................................................... ...............................
2-4
2.2.5 Development .................................................. ...............................
2.3 Platte River Habitat Change /Decline ........................ ...............................
2-4
2 -5
2.4 Hydrologic Baseline .................................................. ...............................
2 -7
3 -10
2.5 Water Quality ............................................................ ...............................
2.6 Sediment ........................... ....
................. ...............................
2 -7
2 -7
Suitability of the Existing Baseline for Monitoring ...............................
2.7 Bottomland Grasslands (Wet Meadows) .................. ...............................
2 -7
Section4 Least Tern ........................................................................................ ...............................
2.7.1 Definition ...................................................... ...............................
2.7.2 Location and Distribution ............................. ...............................
2 -7
2 -8
2.7.3 Hydrology and Ecology ................................ ...............................
2 -9
2.8 Habitat Restoration Efforts ..................................... ...............................
2.9 Suitability of the Existing Baseline for Monitoring ..............................
2 -11
2 -13
2.9.1 Vegetation and Land Use ............................ ...............................
2 -13
2.9.2 Platte River Hydrology ............................... ...............................
2 -14
2.9.3 Bottomland Grasslands/Wet Meadows ....... ...............................
2 -14
2.9.4 Habitat Restoration ..................................... ...............................
2 -15
Section3 Whooping Crane ............................................................................. ............................... 3.1
3.1 History .......................................................................... ............................3
-1
3.2 Reasons for Decline .................................................. ...............................
3 -1
4.1 History .......................................................................... ............................4 -1
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3.3
Biology ...........................................................:............: ............................3 -3
3.3.1 Life History ... .. .................... ...
3.3.2 Migration Habitat ......................................... ...............................
3-4
3.4
Importance of the Platte River .................................. ...............................
3 -5
3.4.1 Roost Sites .................................................... ...............................
3 -6
3.4.2 Wet Meadow Habitat .................................... ...............................
3 -9
3.4.3 Platte River Habitat Decline ......................... ...............................
3 -9
3.4.4 Relation of the Platte River to the Rainwater Basins .................
3 -10
3.5
Recovery Goals ....................................................... ...............................
3 -10
3.6
Suitability of the Existing Baseline for Monitoring ...............................
3 -11
Section4 Least Tern ........................................................................................ ...............................
4-1
4.1 History .......................................................................... ............................4 -1
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