Sage-Grouse and Sagebrush Steppe Management
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Transcript of Sage-Grouse and Sagebrush Steppe Management
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Sage-Grouse and Sagebrush Steppe
ManagementSherman Swanson, CABNR,
UNR
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The three greatest threats to the greater sage-grouse are: invasive species and fire, invasive species and fire, invasive species and fire. Ted Koch, USFWS
Nevada has two really big fire problems: Way too much fire, and not nearly enough fireGruell and Swanson 2012
What matters is what comes after the fire, if it is a resilient landscape that supports sagebrush ecosystems, the fire may have done ecological good for sage-grouse
Ted Koch, USFWS
It is all about resistance and resilience
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Reisner, M.D., et al. 2013. Conditions favouring Bromus tectorum dominance of endangered sagebrush steppe ecosystems. J. Applied Ecology
• Concluded that passive restoration by “reducing cumulative cattle grazing” may be one of the most effective means of achieving high bunchgrass cover and diversity.
• However, they did not consider season, duration, or rotation of use.
• Most of the sites they studied would have been grazed during the growing season for long periods in big pastures, to have a piosphere.
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http://www.smokedbear.com/contest/
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http://www.examiner.com/article/baby-elephant-hugs-keeper-tender-scene-between-calf-and-keeper-caught-on-camera
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http://www.examiner.com/article/baby-elephant-hugs-keeper-tender-scene-between-calf-and-keeper-caught-on-camera
Management
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• Documentation phase (late 70’s)• Recognition and protection phase
(mid to late 80’s)• Learning how to graze phase (early
90’s to now)• Adaptive management phase?
– why?– how?
The Elko District, Riparian Story
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Documentation phase
1978?
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Protection phase
1980s
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1980s
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1980s
1990s
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Riparian grazing systems
fall/spring/rest spring annually spring/rest winter/spring/rest spring/fall/rest/hot hot/spring/rest hot/rest/winter spring/fall/hot spring/hot/fall/winter/rest Fall/ spring Fall annually Winter Winter/rest
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Season-long Grazing
Spring Grazing
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Season-long Grazing
1996: 5 years intermittent early (mostly April) and late
fall (mid Oct. or Nov. to Dec.).
1991
1999
Cool-season Grazing
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1988
2008
Season-long Grazing
Rotation with Spring, Rest,
and Hot Season Grazing
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West Fork Beaver Creek, Horse Field, Beaver Creek Allotment. S-10, T-1, down. 6-14-88.
West Fork Beaver Creek, Horse Field, Beaver Creek Allotment. S-
10, T-1, down. 7-21-99. Rest 1994 and 1995; 1996 unknown;
1997 first week October cow-calf pairs; 1998 2 weeks August cow-
calf pairs and small number domestic horses season-long.
1988
1999
Hot season Grazing.
Varied Season & Intensity
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South Fork Salmon Falls Creek, Little Quakey Riparian Pasture, O’Neil Allotment. S-42, down. 10-10-79. Use unknown.
South Fork Salmon Falls Creek, Little Quakey Riparian
Pasture, O’Neil Allotment. S-42, down. 7-26-99.
1979
1999
Riparian Pasture
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Bottom Line - More good than bad- Season, duration, rotation, recovery
Often Precluding Riparian
Functions and Recovery
Often Allowing and Supporting
Riparian Functions
Long season of use Short duration
Little time for regrowth Long recovery periods
Late use Regrowth before winter
Consistent timing of use Mix up the timing year to year
Selective use Even use
Annual growing season use Occasional rest
Large pasture Riparian pasture
No woody recovery Stutter deferred
No riding or stockmanship Riding, herding, and
stockmanship
Stragglers Cleaned pastures
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Bottom Line - More good than bad- Distribution and Intensity
Often Precluding Riparian
Functions and Recovery
Often Allowing and Supporting
Riparian Functions
Sustained Heavy use Moderate-light intensity
Season-long use Graze early
Hot or dry growing season use Cool season use
No riding or stockmanship Riding, herding, and
stockmanship
Riparian water only Off-stream waters
Salt on the creeks Scattered salt/supplement
Retain riparian dwellers Select for hill climbers
Cow-calf pairs Yearling cattle, steers, and or
sheep
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Most Important Has to be doable for agency and rancher
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Enter Adaptive Management (or at least the need for it)
Streams change
The environment changes
The interaction of the two is dynamic
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Ideally, Mowed areas will retain resilience and mowing will increase resistance
• Sagebrush remained on most of 76 plots across Nevada
• No or few annuals or exotics no or few annuals or exotics
• Perennials & native forbs increased > annuals on 75%
• Perennials & native forbs > annuals on 80%
Mowed sagebrush Fuel Breaks
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If not retaining resilience and increasing resistance, does mowing usefully break up fuel continuity?
This may depend on post mowing fuels management such as prescribed grazing
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Good things happen when managers manage!
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Photo by Gale Dupree
What is most important to sage grouse?• Required sagebrush and riparian habitats
remain resistant and resilient
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We cannot do nothing!