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Pinyon Jay
Multi-state
Working Group
Scott Somershoe, Migratory Bird Program, Region 6, USFWS(Lead) [email protected]
Elisabeth Ammon, Jen Ballard, John Boone; Great Basin Bird Observatory,Corrie Borgman, USFWS Region 2
Sandra Brewer, BLM NevadaJay Carlisle, Intermountain Bird ObservatoryDave Cook, BLM UtahPeggy Darr, Santa Fe County, NMKristine Johnson, University of New MexicoRuss Norvell, Utah Department of Wildlife ResourcesLiza Rossi, Colorado Parks and WildlifeJustin Schofer, USFS ArizonaNick Van Lanen, Bird Conservancy of the Rockies
Chris Witt, USFS, Rocky Mt. Res. Stn.Scott Gibson, Utah Department of Wildlife ResourcesGeoff Walsh, BLMCris Tomlinson, NV DGFNatasha Hadden, BLM UtahPat Diebert, USFWSErin Duvuvuei, New Mexico G&FElroy Masters, Arizona BLMJ Vacca, Nevada BLMSusi Macvean, Arizona G&F
Troy Corman, Arizona G&F
Shawn Langston, BLMTice Supplee, National Audubon SocietyJeff Marks, Montana Bird AdvocacyJosh Vest, Intermountain West Joint Venture
Pinyon Jay
Population Trends
BBS, 1966-2015
• New Mexico -3.46
• Western BBS -3.59
• Survey-wide -3.69
Pinyon Jay-Piñon Pine Mutualism
Trees:
• abundant seeds in mast
years
• seeds high in fat, protein
• nest sites
Jays:
• long-distance dispersal of
millions of seeds
• cache seeds in open sites
such as burned areas
• cache seeds in micro-
habitats favorable for
germination
• can re-plant a woodland
decimated by drought, fire,
insects, or clearing
Pinyon Jay-Piñon Pine
Coevolved Traits
Jays:
• expandable esophagus
• phenomenal spatial memory
• physiological response to green piñon cones
• nest in all seasons
• insulated nests
• large pointed bills for opening green cones
• naked nostrils
Trees
• large, wingless seeds require dispersal by animals
• irregular masting
• seeds highly nutritional
• cones open upwards for bird dispersal
Potential
Threats
Historical• Clearcutting for mining,
1800s (timber and charcoal)
• Millions of acres chained for grazing, tree invasion
Recent• Climate impacts to
P-J habitat
• Thinning for fuels reduction,
ecological condition
• Tree removal for sage-grouse
• Development
Documented Climate Impacts
to Piñon Trees
• models predict P-J range will
contract*
• models predict massive tree mortality in SW*
• tree mortality*
• declines in cone production*
• decreases in canopy cover*
* documented by studies
Expected Climate Impacts
to Pinyon Jays*
• canopy cover - nests exposed to predators
• needle loss – nests exposed to heat
• fewer cones – impact jay reproductive success
• tree mortality – nest trees isolated, more visible to predators
• tree morbidity, mortality – suitable colony sites scarce
• range of Pinyon Jays predicted to contract 25-31%, 2010-2099
*based on well documented PIJA natural history
Thinning Treatments Affect
Habitat Suitability
Nesting
• Tree density*
• Tree size*
• Canopy cover*
Foraging
• Masting trees
• Ectomycorrhizal fungi
*documented by studies
Development: Oil and Gas
• Habitat loss
• Habitat fragmentation
• reduced patch size
• patch isolation
• Well noise*
*documented by studies
Pinyon Jay Multi-State
Working Group
**sign up to be notified when conservation strategy is published
Rangewide Conservation
Strategy for the Pinyon Jay
Introduction: Biology of
the Pinyon Jay
• Status
• Habitat Use and
Requirements
• Historical and Current
Threats
Research Needs
Recommended
Conservation Actions
• Expected publication 2019
• By USFWS Region 6
• Available on web
• Signup sheet to be notified
of publication