Threats to Wildlife and the Platte River

• Description: relates 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: 3/1/1989
• Author: National Audubon Society
• Title: Threats to Wildlife and the Platte River Environmental Policy Analysis Department Report #33
• Water Supply Pro - Doc Type: Report/Study

p. 30
Table 2D cont'd
WILDLIFE
Category
Minimum cfs
Interval
Source & Remarks
Sandhill
3,800
16 days,
Krapu et al. (1984, p 416)
Cranes
May- August
Suggested based on Kar-
linger et al.'s (1981) cal -
culation that this flow
would sustain a 150 -m
wide channel. Sandhill
Cranes strongly prefer a
channel greater than 150
m wide and have aban-
doned at least one river
when the channel shrunk
to less than 100 m. They
strongly avoid channels
narrower than 50 m.
2,000
during
Currier and Eisel (1984, p
migration
18)
Qualitatively judged to
provide a limited amount
of optimal roosting habitat
(channels at least 150 m);
judged adequate in provid-
ing suitable but subopti-
mal habitat (channels 50
to 100 m). Suitability of
channel width is based on
an interpretation of Krapu
et al. 1984. K
1,070
during
Currier and Eisel (1984, p
migration
18)
Qualitatively judged to
provide a limited amount
of marginal roosting hab-
itat (channels 50 to 100 m).
Suitability of channel
width is based on an inter-
pretation of Krapu et al.
1984. `