USDA Forest Service

Pacific Southwest Research Station

 
Pacific Southwest
Research Station

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Albany, CA 94710-0011
(510) 883-8830
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Research Spotlight

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The publications below were posted from Pacific Southwest Research Station researchers between May and July 2020. There are many more publications produced by our scientists available through Treesearch.

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Featured publications:

The Pacific region is a global hotspot of biological and cultural diversity including plant and animal species found nowhere else on Earth. Native ecosystems provide benefits that are critical for human survival, such as clean drinking water, fisheries, food, fiber, and medicines. These rare landscapes, however, are threatened by changing climatic conditions, rising sea levels, non-sustainable land uses, and an influx of invasive species. Cultural and natural resources risk being degraded to the point of biological extinction. These local challenges and global implications are why the work to mitigate such eco-cultural threats is so critical.

In this report, the Institute of Pacific Islands Forestry and its partners highlight some of that work, while discussing future areas of research and additional projects to be implemented.

The seventh sudden oak death science and management symposium provided a forum for current research concerning sudden oak death caused by the exotic, quarantine pathogen, Phytophthora ramorum. Nearly 50 submissions describing papers or posters on the following sudden oak death/P. ramorum topics are included: ecology, monitoring, and nursery and wildland management. Abstracts are also provided from sessions on Phytophthoras in California native plant nurseries and restoration sites.

Proceedings of the seventh sudden oak death science and management symposium: healthy plants in a world with Phytophthora. Frankel, Susan J.; Alexander, Janice M. 2020. Gen. Tech. Rep. PSW-GTR-268. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 121 p.


Publications by research area:

Inventory and Monitoring

Intraspecific trait variation across elevation predicts a widespread tree species' climate niche and range limits. Van Nuland, Michael E.; Vincent, John B.; Ware, Ian M.; Mueller, Liam O.; Bayliss, Shannon L. J.; Beals, Kendall K.; Schweitzer, Jennifer A.; Bailey, Joseph K. 2020. Ecology and Evolution. 10(9): 3856-3867.

Multiscale analysis of canopy arthropod diversity in a volcanically fragmented landscape. Tielens, Elske K.; Neel, Maile N.; Leopold, Devin R.; Giardina, Christian P.; Gruner, Daniel S. 2019. Ecosphere. 10(4): e02653.

Woodboring beetle colonization of conifers killed by fire and bark beetles: implications for forest restoration and black-backed woodpecker conservation. Ray, Chris; Cluck, Daniel R.; Wilkerson, Robert L.; Siegel, Rodney B.; White, Angela M.; Tarbill, Gina L.; Sawyer, Sarah C.; Howell, Christine A. 2020. Gen. Tech. Rep. SRS-250. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station: 179-186.

Outdoor Recreation

Public lands, tourism, and community connections. Cerveny, Lee K.; Sanchez, Jose J.; Helmer, Matthew; Milnor, Adam. 2020. In: Selin, Steven; Cerveny, Lee K.; Blahna, Dale J.; Miller, Anna B., eds. 2020. Igniting research for outdoor recreation: linking science, policy, and action. Gen. Tech. Rep. PNW-GTR-987. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 115-132. Chapter 8.

Pests and Pathogens

A study of landing behaviour by the walnut twig beetle, Pityophthorus juglandis, among host and nonhost hardwood trees in a northern California riparian forest. Audley, Jackson P.; Homicz, Crystal S.; Bostock, Richard M.; Seybold, Steven J. 2020. Agricultural and Forest Entomology. [Early release]

Asexual evolution and forest conditions drive genetic parallelism in Phytophthora ramorum. Yuzon, Jennifer David; Travadon, Renaud; Malar C, Mathu; Tripathy, Sucheta; Rank, Nathan; Mehl, Heather K.; Rizzo, David M.; Cobb, Richard; Small, Corinn; Tang, Tiffany; McCown, Haley E.; Garbelotto, Matteo; Kasuga, Takao. 2020. Microorganisms. 8(6): 940.

Evaluating doses of SPLAT® verb to protect lodgepole pine trees and stands from mountain pine beetle. Fettig, Christopher J.; Steed, Brytten E.; Munson, A. Steven; Progar, Robert A.; Mafra-Neto, Agenor. 2020. Crop Protection. 136: 105228.

Impacts of mountain pine beetle outbreaks on lodgepole pine forests in the Intermountain West, U.S., 2004-2019. Audley, Jackson P.; Fettig, Christopher J.; Steven Munson, A.; Runyon, Justin B.; Mortenson, Leif A.; Steed, Brytten E.; Gibson, Kenneth E.; Jørgensen, Carl L.; McKelvey, Stephen R.; McMillin, Joel D.; Negron, Jose F. 2020. Forest Ecology and Management. 475: 118403.

The magnitude of regional-scale tree mortality caused by the invasive pathogen Phytophthora ramorum. Cobb, Richard C.; Haas, Sarah E.; Kruskamp, Nicholas; Dillon, Whalen W.; Swiecki, Tedmund J.; Rizzo, David M.; Frankel, Susan J.; Meentemeyer, Ross K. 2020. Earth's Future. 8(7): e2020EF001500.

Resource Management and Use

Adapting bottomland hardwood forests to a changing climate. Brandt, Leslie A.; Sertle, Michael; Hamilton, Heath; Deaton, Chad; Mangan, Karen; Swanston, Christopher W.; Hammes, Mary; Nagel, Linda M.; Peterson, Courtney L.; Looney, Christopher E.; Windmuller- Campione, Marcella; Montgomery, Rebecca A. 2020. In: Pile, Lauren S.; Deal, Robert L.; Dey, Daniel C.; Gwaze, David; Kabrick, John M.; Palik, Brian J.; Schuler, Thomas M., comps. The 2019 National Silviculture Workshop: a focus on forest management-research partnerships. Gen. Tech. Rep. NRS-P-193. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station: 159-162.

Adaptive silviculture for climate change network: learning from land manager-research partnerships. Looney, Christopher E.; Peterson, Courtney L.; Nagel, Linda M.; Guldin, James M.; Swanston, ChristopherW; Janowiak, Maria K.; Battaglia, Mike A.; Bigelow, Seth W.; Brandt, Leslie A.; D?Amato, Anthony W.; Evans, Kevin; Jack, Steve B.; Jain, Theresa B.; Jenkins, Melissa M.; Kennedy Sutherland, Elaine; Hammes, Mary; Palik, Brian J.; Tuten, Matt C.; Woodall, Christopher W. 2020. In: Pile, Lauren S.; Deal, Robert L.; Dey, Daniel C.; Gwaze, David; Kabrick, John M.; Palik, Brian J.; Schuler, Thomas M., comps. The 2019 National Silviculture Workshop: a focus on forest management-research partnerships. Gen. Tech. Rep. NRS-P-193. Madison,WI: U.S. Department of Agriculture, Forest Service, Northern Research Station: 112-114.

Aquatic ecosystems, vernal pools, and other unique wetlands. Padgett, Pamela E. 2020. In: Dumroese, R. K.; Moser, W. K., eds. Northeastern California plateaus bioregion science synthesis. Gen. Tech. Rep. RMRS-GTR-409. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 101-111. Chapter 4.2.

Climate-change refugia: biodiversity in the slow lane. Morelli, Toni Lyn; Barrows, Cameron; Ramirez, Aaron; Cartwright, Jennifer; Ackerly, David; Eaves, Tatiana; Ebersole, Joseph; Krawchuk, Meg; Letcher, Benjamin; Mahalovich, Mary; Meigs, Garrett; Michalak, Julia; Millar, Constance; Quiñones, Rebecca; Stralberg, Diana; Thorne, James H. 2020. Frontiers in Ecology and the Environment. 18(5): 228-234.

Difference in regeneration conditions in Pinus ponderosa dominated forests in northern California, USA, over an 83 year period. Nepal, Sushil; Eskelson, Bianca N.I.; Ritchie, Martin W. 2020. Forests. 11(5): 581.

Ecological disturbance in the context of a changing climate: Implications for land management in Northeastern California. Wright, Jessica W. 2020. In: Dumroese, R. K.; Moser, W. K., eds. Northeastern California plateaus bioregion science synthesis. Gen. Tech. Rep. RMRS-GTR-409. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 186-210. Chapter 6.1.

Effects of thinning and prescribed fire in the Goosenest Adaptive Management Area in northeastern California. Ritchie, Martin W. 2020. In: Pile, Lauren S.; Deal, Robert L.; Dey, Daniel C.; Gwaze, David; Kabrick, John M.; Palik, Brian J.; Schuler, Thomas M., comps. The 2019 National Silviculture Workshop: a focus on forest management-research partnerships. Gen. Tech. Rep. NRS-P-193. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station: 193-206.

Geocoding of trees from street addresses and street-level images. Laumer, Daniel; Lang, Nico; van Doorn, Natalie; Mac Aodha, Oisin; Perona, Pietro; Wegner, Jan Dirk. 2020. ISPRS Journal of Photogrammetry and Remote Sensing. 162: 125-136.

How traditional tribal perspectives influence ecosystem restoration. Long, Jonathan W.; Lake, Frank K.; Goode, Ron W.; Burnette, Benrita Mae. 2020. Ecopsychology. 12(2): 71-82.

Restoring forest heterogeneity with thinning and prescribed fire: Initial results from the central Sierra Nevada, California. Knapp, Eric E.; Carlson, Robert L.; North, Malcolm P.; Lydersen, Jamie L.; Collins, Brandon M. 2020. In: Pile, Lauren S.; Deal, Robert L.; Dey, Daniel C.; Gwaze, David; Kabrick, John M.; Palik, Brian J.; Schuler, Thomas M., comps. The 2019 National Silviculture Workshop: a focus onforest management-research partnerships. Gen. Tech. Rep. NRS-P-193. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station: 216-226.

Summative and ultimate analysis of live leaves from southern U.S. forest plants for use in fire modeling. Matt, Frederick J.; Dietenberger, Mark A.; Weise, David R. 2020. Energy & Fuels. 34(4): 4703-4720.

Validating climate-change refugia: empirical bottom-up approaches to support management actions. Barrows, Cameron; Ramirez, Aaron; Sweet, Lynn; Morelli, Toni Lyn; Millar, Constance; Frakes, Neil; Rodgers, Jane; Mahalovich, Mary F. 2020. Frontiers in Ecology and the Environment. 18(5): 298-306.

Water, Air and Soil

A comparison of soil carbon stocks of intact and restored mangrove forests in northern Vietnam. Hong Tinh, Pham; Thi Hong Hanh, Nguyen; Van Thanh, Vo; Sy Tuan, Mai; Van Quang, Pham; Sharma, Sahadev; MacKenzie, Richard A. 2020. Forests. 11(6): 660.

Effects of wildfire and logging on soil functionality in the short-term in Pinus halepensis M. forests. Lucas-Borja, Manuel E.; Ortega, R.; Miralles, I.; Plaza-Alvarez, P. A.; Gonzalez-Romero, J.; Peña-Molina, E.; Moya, D.; Zema, D. A.; Wagenbrenner, J. W.; de las Heras, J. 2020. European Journal of Forest Research. 6(1): 2414.

How will climate change affect the provision and value of water from public lands in Southern California through the 21st century? Srivastava, Lorie; Hand, Michael; Kim, John; Sanchez, Jose J.; Lupi, Frank; Garnache, Cloe; Drapek, Raymond J.; Quinn, James F. 2020. Agricultural and Resource Economics Review. 49(1): 117-149.

Litter quality and site characteristics interact to affect the response of priming effect to temperature in subtropical forests. Lyu, Maokui; Nie, Yangsyi; Giardina, Christian P.; Vadeboncoeur, Matthew A.; Ren, Yinbang; Fu, Zuoqin; Wang, Minhuang; Jin, Changshan; Liu, Xiuming; Xie, Jinsheng. 2019. Functional Ecology. 33(11): 2226-2238.

The influence of riparian areas on direct surface runoff of precipitation events. Zarnott, Daiane Hellnvig; Tavares, Vitor Emanuel Quevedo; Giardina, Christian; Alba, Jose Maria Filippini. 2020. Floresta e Ambiente. 27(4): e20180220.

Wildland Fire and Fuels

A convolutional neural network classifier identifies tree species in mixed-conifer forest from hyperspectral imagery. Fricker, Geoffrey A.; Ventura, Jonathan D.; Wolf, Jeffrey A.; North, Malcolm P.; Davis, Frank W.; Franklin, Janet. 2019. Remote Sensing. 11(19): 2326.

First-entry wildfires can create opening and tree clump patterns characteristic of resilient forests. Kane, Van R.; Bartl-Geller, Bryce N.; North, Malcolm P.; Kane, Jonathan T.; Lydersen, Jamie M.; Jeronimo, Sean M.A.; Collins, Brandon M.; Monika Moskal, L. 2019. Forest Ecology and Management. 454: 117659.

Long-term changes in masticated woody fuelbeds in northern California and southern Oregon, USA. Reed, Warren P.; Varner, J. Morgan; Knapp, Eric E.; Kreye, Jesse K. 2020. International Journal of Wildland Fire. [Early release]

Proceedings of the Fire Continuum-Preparing for the future of wildland fire; 2018 May 21-24; Missoula, MT. Hood, Sharon M.; Drury, Stacy; Steelman, Toddi; Steffens, Ron. 2020. Proceedings RMRS-P-78. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 358 p.

Topographic variation in tree group and gap structure in Sierra Nevada mixed-conifer forests with active fire regimes. Ng, Jan; North, Malcolm P.; Arditti, Alec J.; Cooper, Monica R.; Lutz, James A. 2020. Forest Ecology and Management. 472: 118220.

Weeds, wheels, fire, and juniper: Threats to sagebrush steppe. Padgett, Pamela E. 2020. In: Dumroese, R. K.; Moser, W. K., eds. Northeastern California plateaus bioregion science synthesis. Gen. Tech. Rep. RMRS-GTR-409. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 64-76. Chapter 3.3.

Wildfire-driven forest conversion in western North American landscapes. Coop, Jonathan D.; Parks, Sean A.; Stevens-Rumann, Camille S.; Crausbay, Shelley D.; Higuera, Philip E.; Hurteau, Matthew D.; Tepley, Alan; Whitman, Ellen; Assal, Timothy; Collins, Brandon M.; Davis, Kimberley T.; Dobrowski, Solomon; Falk, Donald A.; Fornwalt, Paula J.; Fule, Peter Z.; Harvey, Brian J.; Kane, Van R.; Littlefield, Caitlin E.; Margolis, Ellis Q.; North, Malcolm; Parisien, Marc-Andre; Prichard, Susan; Rodman, Kyle C. 2020. BioScience. BioScience. [Early release]

Wildlife and Fish

Exploiting the winter trophic relationship between weasels (Mustela spp.) and their microtine prey as a survey method for weasels in meadow ecosystems. Zielinski, William J.; Linnell, Mark A.; Schwartz, Michael K.; Pilgrim, Kristy. 2020. Northwest Science. 93(3-4): 185-192.

Impact of mean annual temperature on nutrient availability in a tropical montane wet forest. Litton, Creighton M.; Giardina, Christian P.; Freeman, Kristen R.; Selmants, Paul C.; Sparks, Jed P. 2020. Frontiers in Plant Science. 11: 784.

Phylogeography of moose in western North America. DeCesare, Nicholas J.; Weckworth, Byron V; Pilgrim, Kristine L.; Walker, Andrew B. D.; Bergman, Eric J.; Colson, Kassidy E.; Corrigan, Rob; Harris, Richard B.; Hebblewhite, Mark; Jesmer, Brett R.; Newby, Jesse R.; Smith, Jason R.; Tether, Rob B.; Thomas, Timothy P.; Schwartz, Michael K. 2020. Journal of Mammalogy. 101(1): 10-23.

Pliocene-early Pleistocene geological events structure Pacific martens (Martes caurina). Schwartz, Michael K.; Walters, Ashley D.; Pilgrim, Kristine L.; Moriarty, Katie M.; Slauson, Keith M.; Zielinski, William J.; Aubry, Keith B.; Sacks, Benjamin N.; Zarn, Katherine E.; Quinn, Cate B.; Young, Michael K. 2020. Journal of Heredity. 2020: 169-181.

The evolution of self-medication behaviour in mammals. Neco, Lucia; Abelson, Eric; Brown, Asia; Natterson-Horowitz, Barbara; Blumstein, Daniel T. 2019. Biological Journal of the Linnean Society. 128: 373–378.

The impacts of degradation, deforestation and restoration on mangrove ecosystem carbon stocks across Cambodia. Sharma, Sahadev; MacKenzie, Richard A.; Tieng, Thida; Soben, Kim; Tulyasuwan, Natcha; Resanond, Amomwan; Blate, Geoffrey; Litton, Creighton M. 2020. Science of The Total Environment. 706: 135416.


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Last Modified: Aug 10, 2020 10:48:45 AM