comparing ground cover conditions and greater sage‐grouse lek counts between two management...
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Open Range Consulting Gregg Simonds & Eric Sant
October, 2013
Comparing Ground Cover Conditions and Greater Sage‐Grouse Lek Counts Between Two
Management Systems
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Tota
l Bir
ds
Total # Of Males on Leks over 17 Yrs on Three Creeks and DLL
Three Creeks (6 leks)
DLL (10 leks)
Landcover
Perennial Grass
Tall Sagebrush
Juniper
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DLL Three Creeks
Sa
geb
ruh
s A
cres
Acres/Male on Leks (2007)
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DLL Three CreeksM
ale
s/L
ek
Males/Lek (2007)
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Tall Sagebrush Short Sagebrush
Per
cen
t C
ov
er
Landcover Types
% Sagebrush Cover betw 2 Landcover Types
DLL
3 Creeks
Landsat scale
Nesting Early Brood
Late Brood
90m
Less heterogeneous More heterogeneous
From Hunnicutt 1992
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80%
0%-10% 10%-20% 20% and Greater
Per
cen
t of
Are
a O
ccu
pie
d
Cover Class
Sagebrush Class Comparison (Within 2 Miles of Leks)
DLL Three Creeks
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% H
ERB
AC
EOU
S C
OV
ER
MA
LES
ON
LEK
S
Males on Leks & Herbaceous Cover
Males on Leks Herb
Trea
tmen
ts
Percent Sagebrush Coverage
DLL • Mostly Private • Mgt.Rest,Treatments • 4.4 Acres/AUM
Different Management Three Creeks • Mostly Public • Season Long Grazing • 6.75 Acres/AUM
Conclusions Conclusions
Provide Spatially Explicit Vegetation Maps At All Scales Population Area, Core Area, Seasonal Habitats
Can Describe Area Functionality Cover, Diversity, Food
Can Make Relationships Between Management Action and Habitat Conditions Grazing and Treatments
Provide Baseline Information and Provide Timely Updates Cheaply For Regional and Local Planning and Mitigation Crediting