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Overview
Basics
Basics
Establish a network of ecological monitoring plots in lower montane mixed conifer forests (focal species-sugar pine), upper montane forests (focal species western white pine), and subalpine woodlands (focal species-whitebark pine) in the LTBMU to identify population structure and evaluate stressors associated with each of the 3 focal species, identify population genetic structure and diversity, and WPBR-resistance frequency, for populations of each focal species, develop demographic models to determine population dynamics, and develop and test the efficacy of conservation and restoration strategies.
Completed
2007
2007
2010
$243,485
Pat Manley (pmanley@fs.fed.us)
10/03/2017
10/03/2017
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| Location Information | Location Notes |
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Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0068 - P009: Population Biology of Sugar Pine With Reference to Historical Disturbances in the Lake Tahoe Basin: Implications for Restoration
Performance Measures
Expected Performance Measures
Expected Performance Measures
No expected performance measures set for this project.
Reported Performance Measures
Reported Performance Measures
No annual performance measure accomplishments entered for this project.
Funding
Expected Funding
Expected Funding
$243,485
$243,485
$0
| Total | |||
|---|---|---|---|
| Unknown or Unassigned | $243,485 | $243,485 | $0 |
| Grand Total | $243,485 | $243,485 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2010 | 2009 | 2008 | 2007 | |
|---|---|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacifi... | $243,485 | $60,871 | $60,872 | $60,871 | $60,871 |
| Grand Total | $243,485 | $60,871 | $60,872 | $60,871 | $60,871 |
Photos
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
-
Management and restoration of Sugar pine, western white pine, and whitebark pine.
Local and Regional Plans
No Local and Regional Plans set for this project.
Related Projects
Related Projects
No Related Projects set for this project.
External Links
No external links entered.
Notes
Notes
| 07/21/2017 8:41 AM | System | Objectives: Our goal was to determine current population and genetic characteristics of P. lambertiana given the history of Comstock logging, fire suppression, and C. ribicola in the Lake Tahoe Basin. Given the diversity in forest conditions across the Basin our objectives were to determine: • The current population structure and trends of sugar pine in the Basin; • The genetic structure and diversity of extant sugar pine populations; • Relationships between stand and sugar pine population characteristics with historical disturbances (logging, fire suppression and white pine blister rust (WPBR)); and, • Landscape-scale frequency of WPBR resistance (Cr1). Any restoration strategies to potentially mitigate these anthropogenic disturbances will require information on current population, genetic, and stand conditions in the Lake Tahoe Basin. |
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| 07/21/2017 8:41 AM | System | Findings: • Comstock-era logging was evident in 9 of the 10 sites; only D.L. Bliss State Park, located north of Emerald Bay, did not exhibit obvious, significant harvesting.Fire suppression was also evident in most stands, with forest stands characterized by high densities of shade tolerant species like white fir. • Despite the confounding effects of recent stand treatments, we found a moderate and negative relationship between sugar pine survivorship and white fir basal area (r2 = 0.31, F1,10 = 3.57, P = 0.09, slope estimate = 0.01). White pine blister rust was found in 90% of the sites and ranged from 0% to 48%. The highest rust levels were found at Carnelian Bay (30%), Sugar Pine Point State Park (41%), and Granlibakken (48%). No rust was found on sugar pine in the Glenbrook population. • Sugar pine densities were highest at Crystal Bay, D.L. Bliss State Park, Heavenly, and Glenbrook, respectively, and lowest at Sugar Pine Point State Park and Tunnel Creek. Basal area of sugar pine was highest at Granlibakken, followed by Glenbrook, D.L. Bliss, and Sugar Pine Point State Park. *** See www.fs.fed.us/PSW/partnerships/tahoescience for additional findings. |
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| 07/21/2017 8:38 AM | System | Management Implications: • Restoration strategies to mitigate anthropogenic influences should be based on strong evidence of negative population and genetic effects, as well as an assessment of risk factors for a population (e.g., how much disease at a site, frequency of resistance, and frequency of infection periods). • Of the 10 sugar pine populations evaluated in the Lake Tahoe Basin only three appear to be in need of restoration. • Restoring population numbers, disease resistance, and genetic variation may require out-planting seedlings that are genetically diverse and WPBR-resistant, as well as forest treatments (e.g., thinning and/or prescribed fire) that promote natural sugar pine regeneration. *** See www.fs.fed.us/PSW/partnerships/tahoescience for additional management implications. |
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| 07/21/2017 8:38 AM | System | Publications: www.fs.fed.us/PSW/partnerships/tahoescience Maloney, P. E., Vogler, D. R., Eckert, A. J., Jensen, C. E., & Neale, D. B. 2011. Population biology of sugar pine (< i> Pinus lambertiana</i> Dougl.) with reference to historical disturbances in the Lake Tahoe Basin: Implications for restoration. Forest Ecology and Management, 262(5), 770-779. Maloney, P. E. 2014. The multivariate underpinnings of recruitment for three Pinus species in montane forests of the Sierra Nevada, USA. Plant Ecology,215(2), 261-274. Maloney P.E. 2000. Topics in forest pathology and ecology in the Sierra Nevada and the Sierra San Pedro Martir, Baja. Ph.D. Dissertation, University of California, Davis. Maloney, P.E., D. Duriscoe D. Smith, D. Burton, D. Davis, J. Pickett, and J. Dunlap. in preparation. Status of white wine blister rust and other threats to high elevation white pines in California. Maloney, P.E., T. F. Smith, C.E. Jensen, D.M. Rizzo, J. Innes, and M.P. North. in preparation. Tree mortality and pest responses to fire and thinning in a mixed-conifer ecosystem of the Sierra Nevada, California, USA. |