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listing update
STREAKED HORNED LARK
Cat Brown US Fish and Wildlife Service
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A RARE SUBSPECIES
42 subspecies worldwide, from the Arctic to the Subtropical Zone
21 subspecies in North America
5 subspecies breed in OR and WA, but only E. a. strigata breeds in OR and WA lowlands west of the Cascades (the other 4 ssp winter here)
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Puget Lowlands
Washington Coast – Columbia River Islands
Willamette Valley
Streaked Horned Lark Distribution
Historical Range: • British Columbia, Canada • Northern Puget trough • San Juan Islands • Puget lowlands • WA coast and Columbia River Islands • Oregon Coast • Willamette Valley • Rogue and Umpqua Valleys Current Range: • Puget lowlands • WA coast and Columbia River Islands • Willamette Valley
HISTORICAL & CURRENT RANGE
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Region Number of Sites Population Size Puget Lowlands, WA (Olympia Airport, JBLM)
6 150-170
Washington coast and lower Columbia River islands (including sites in Portland)
~ 15 120-140
Willamette Valley (Airports, Wildlife Refuges, Ag Lands)
?? 900-1300
CURRENT POPULATION
RANGEWIDE POPULATION ESTIMATE ≤ 2,000 BIRDS
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Large Flat Open, treeless Frequently
disturbed, sparse vegetation, lots of open ground
LARK HABITAT
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LARK HABITAT – THEN…
Willamette and Puget prairies
Scoured floodplains and islands of the Columbia and Willamette Rivers
Ocean beaches
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LARK HABITAT – NOW…
Airports Puget prairies WA coast* Columbia River dredge
spoil islands Willamette Valley
agricultural lands
* The only place where habitat is maintained by natural processes
CVO aka “Larktopia”
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KNOWN populations at: Portland International Airport Corvallis Municipal Airport Eugene Airport Salem Municipal Airport McMinnville Municipal Airport Independence State Airport
LARKS ON AIRPORTS IN OREGON
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HABITAT: AIRPORTS
Any place you can land a plane…
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HABITAT: DREDGE SPOIL SITES
Huge piles of sand in the Columbia River…
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HABITAT: WILLAMETTE VALLEY AG LANDS
Underperforming grass seed fields…
Gravel roads
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Habitat conversion Loss of natural disturbance processes, such as fire
and flooding, followed by encroachment of woody vegetation
Invasion of coastal areas by nonnative beachgrasses Predation (which is natural but the effect is
magnified when populations are small and declining) Inbreeding depression, low reproductive success, and
declining population size have been documented in the Puget lowlands population
THREATS
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Listed as a Threatened species Critical habitat designated Special rule for certain activities on ag lands, airports and prairie restoration sites exempted from “take” prohibitions
FINAL LISTINGS: OCTOBER 3, 2013
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STATUS: THREATENED
Based on small population and documented decline in WA, and relatively larger population with more habitat in OR
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DESIGNATION OF CRITICAL HABITAT
4 sites on the WA coast 9 islands in the
Columbia River 3 USFWS refuge
units in the Willamette Valley
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SECTION 9: PROHIBITED ACTS
Take: harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect or to attempt to engage in these activities. The take prohibition for wildlife applies to
any person as well as States, Tribes, and Federal agencies. Also prohibits import, export, interstate
transport, possession or sale.
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SPECIAL RULE: AIRPORTS
Certain activities at airports for hazardous wildlife management are exempted from the take prohibition: Routine management, repair and maintenance of
roads and runways Control of vegetation through mowing, discing,
herbicide application and burning Hazing of hazardous wildlife Management of forage, water and shelter Includes incidental take of larks caused by
accidental aircraft strikes
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The special rule: Recognizes actions that inadvertently benefit the
species
Encourages landowners to continue those practices that provide habitat for the streaked horned lark – even though creation of lark habitat causes some adverse effects
Acknowledges that the lark’s use of working industrial lands demands flexibility
WHY ALLOW TAKE FOR A THREATENED SPECIES?
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EFFECT OF THE 4(d) RULE
Removes the prohibition on take for specified activities and actors • Does not remove the take prohibition
for other activities at airports • Does not remove the requirement for
consultation under section 7 for Federal agencies (e.g., FAA)
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FAA Regional Office in Renton is reviewing its activities, and assessing the need for consultation with Fish and Wildlife Service for planned projects that could affect larks Initiating surveys for larks at other
airports in OR and WA
COORDINATION WITH FAA
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Get better information about lark numbers and distribution at your site Contact FAA to see if they can help with
project review Contact the Fish and Wildlife Service to
see if you need a conservation plan & take permit for activities not covered by the special rule ([email protected])
WHAT SHOULD YOU DO IF YOUR AIRPORT HAS LARKS?
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Find the few existing, high quality natural habitats that will form the core of the recovery effort
Save the last, best remaining habitats, and work to restore or recreate other suitable natural sites
FOR MOST LISTED SPECIES…
This model doesn’t really work for larks
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Recovery will require: artificially-maintained “natural” habitats maintaining the availability of “working
landscapes”
Short-term: Maintain populations where they are (airports, ag lands, other industrial sites)
Long-term: Establish new, non-industrial sites with conservation management for lark populations
RECOVERING THE LARK
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IF YOU BUILD IT, WILL THEY COME?
St Johns Landfill Prairie
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