Reciprocal Disturbance Interactions in Pinus albicaulis Ecosystems Nancy Bockino – M.S. Candidate Daniel Tinker – Advisor University of Wyoming Department of Botany. Ecosystem Introduction Function Disturbance Quantitative Analysis & Results Implications Ecosystem Management.
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Reciprocal Disturbance Interactionsin Pinus albicaulis Ecosystems Nancy Bockino – M.S. CandidateDaniel Tinker – AdvisorUniversity of Wyoming Department of Botany
Black Bear Harvesting Cones
Photo: Ryan Sims
Seed Dispersal Vector
Photo: A. Wilson
Greater Yellowstone Ecosystem – Northwest Wyoming
Mountain Pine Beetle
Photo from Allen Carroll
Photo Susan Hagle, USFS
Which tree & stand characteristics determine beetle selection and
the resulting mosaic of mortality?
1. Summary of whitebark condition in the GYE
Whitebark & Non-Beetle Host
Whitebark & Alternate Beetle Host
(# preferred host attacked÷ total attacked)
(# preferred host available ÷ total available)
Selection Ratio 1.0 = No Preference
Step 2: Selection Ratio
*α = 0.05
1. whitebark over lodgepole
2. whitebark with heavy blister rust
Step 3: Multiple Logistic Regression
Positive relationship between heavy rust & beetle selection.
Joint Fire Science Program Grant
UWYO – NPS Research Grant
Wyoming Native Plant Society
Kelly McCloskey – Grand Teton NP
Contact Info: [email protected]
My Mom, Alida