Search Results - "Jacobi, William"

Limber pine in the central and southern Rocky Mountains: Stand conditions and interactions with blister rust, mistletoe, and bark beetles by Cleaver, Christy M., Jacobi, William R., Burns, Kelly S., Means, Robert E.

“…•We assessed 508 limber pine stands for blister rust, mistletoe, and bark beetles.•Only half of all limber pines were healthy.•White pine blister rust is…”
Get full text

Regeneration for resilience framework to support regeneration decisions for species with populations at risk of extirpation by white pine blister rust by Schoettle, Anna W., Jacobi, William R., Waring, Kristen M., Burns, Kelly S.

“…Natural forests are increasingly invaded by nonnative pests and pathogens that threaten host species with population extirpation and cascading ecological…”
Get full text

Pruning Limber Pine to Reduce Impacts from White Pine Blister Rust in the Southern Rocky Mountains by Jacobi, William R., Bovin, Phyllis Pineda, Burns, Kelly S., Crump, Amanda, Goodrich, Betsy A.

“…White pine blister rust is a disease that damages and kills white pines in the Southern Rocky Mountains. Our goal was to determine whether pruning could…”
Get full text

Mountain Pine Beetle Host Selection Between Lodgepole and Ponderosa Pines in the Southern Rocky Mountains by West, Daniel R, Briggs, Jennifer S, Jacobi, William R, Negrón, José F

“…Recent evidence of range expansion and host transition by mountain pine beetle (Dendroctonus ponderosae Hopkins; MPB) has suggested that MPB may not primarily…”
Get full text

Bark beetles and dwarf mistletoe interact to alter downed woody material, canopy structure, and stand characteristics in northern Colorado ponderosa pine by Klutsch, Jennifer G., Beam, Russell D., Jacobi, William R., Negrón, José F.

“…•Endemic biotic disturbances influence downed wood and crown characteristics.•Older bark beetle-induced mortality increases downed woody material…”
Get full text

Long-Term Fluctuations in Water Status and Crown Dieback of Plains Cottonwood Trees by Jacobi, William, Koski, Ronda, Goodrich, Betsy

“…Plains cottonwood trees (Populus deltoides subsp. monilifera (Aiton) Eckenw.) occur in riparian and urban areas in semiarid regions of western United States…”
Get full text

Foliar Damage, Ion Content, and Mortality Rate of Five Common Roadside Tree Species Treated with Soil Applications of Magnesium Chloride by Goodrich, Betsy A., Jacobi, William R.

“…Sensitivity to magnesium chloride (MgCl 2 ) was assessed on five common roadside tree species by maintaining soil concentrations at 0-, 400-, 800-, or…”
Get full text

Mountain pine beetle-caused mortality over eight years in two pine hosts in mixed-conifer stands of the southern Rocky Mountains by West, Daniel R., Briggs, Jennifer S., Jacobi, William R., Negrón, José F.

“…•We surveyed mountain pine beetle attacks on alternative host species in mixed stands.•Average total mortality was 39% in both lodgepole and ponderosa pine…”
Get full text

Epidemiology of white pine blister rust on limber pine in Colorado and Wyoming by Jacobi, William R., Kearns, Holly S. J., Cleaver, Christy M., Goodrich, Betsy A., Burns, Kelly S.

“…Cronartium ribicola is a non‐native, heteroecious, fungal pathogen that causes white pine blister rust (WPBR) on all white pines, including Pinus flexilis…”
Get full text

Host Defense Mechanisms against Bark Beetle Attack Differ between Ponderosa and Lodgepole Pines by Daniel R. West, Elisa J. Bernklau, Louis B. Bjostad, William R. Jacobi

“…Conifer defenses against bark beetle attack include, but are not limited to, quantitative and qualitative defenses produced prior to attack. Our objective was…”
Get full text

Roadway Deicer Effects on the Germination of Native Grasses and Forbs by Dudley, Megan M, Jacobi, William R, Brown, Cynthia S

“…Normal seed germination of native herbaceous species can be reduced by high concentrations of deicer products and their constituent salts. Chloride salts are…”
Get full text

Condition of Soils and Vegetation Along Roads Treated with Magnesium Chloride for Dust Suppression by Goodrich, Betsy A, Koski, Ronda D, Jacobi, William R

“…Investigations of vegetation stress along non-paved roads treated with a range of magnesium chloride (MgCl₂) application rates utilized 60 roadside and 79…”
Get full text

Post-fire regeneration dynamics in whitebark pine (Pinus albicaulis) forests in Wind River and Absaroka Mountains, Wyoming, USA by Klutsch, Jennifer G, Goodrich, Betsy A, Jacobi, William R

“…Whitebark pine (Pinus albicaulis) populations are in decline across the species’ range due to historic wildfire exclusion, mountain pine beetle (Dendroctonus…”
Get full text

Forest thinning and subsequent bark beetle-caused mortality in Northeastern California by Egan, Joel M., Jacobi, William R., Negron, Jose F., Smith, Sheri L., Cluck, Daniel R.

“…▶ Thinning efficacy to reduce bark beetle-caused mortality was assessed after a high incidence of tree mortality associated with drought from 2001 to 2007. ▶…”
Get full text

Ten-Year Performance of the United States National Elm Trial by Griffin, Jason, Jacobi, William, McPherson, Gregory, Sadof, Clifford, McKenna, James, Gleason, Mark, Ward Gauthier, Nicole, Potter, Daniel, Smitley, David, Adams, Gerard, Brooks Gould, Ann, Cash, Christian, Walla, James, Starrett, Mark, Chastagner, Gary, Sibley, Jeff, Krischik, Vera, Newby, Adam

“…Ulmus americana (American elm) was an important urban tree in North America prior to the introduction of the Dutch elm disease pathogen in 1930. Subsequently,…”
Get full text

Monitoring Surface Water Chemistry Near Magnesium Chloride Dust Suppressant Treated Roads in Colorado by Goodrich, Betsy A, Koski, Ronda D, Jacobi, William R

“…Magnesium chloride (MgCl2)-based dust suppression products are commonly used throughout western United States on nonpaved roads for dust suppression and road…”
Get full text

Traps and Attractants for Wood-Boring Insects in Ponderosa Pine Stands in the Black Hills, South Dakota by Costello, Sheryl L, Negron, Jose F, Jacobi, William R

“…Recent large-scale wildfires have increased populations of wood-boring insects in the Black Hills of South Dakota. Because little is known about possible…”
Get full text

Wood-boring insect abundance in fire-injured ponderosa pine by Costello, Sheryl L., Negrón, José F., Jacobi, William R.

“…1 Wood‐boring larvae in the families Cerambycidae and Buprestidae are often found in high densities in burned trees after wildland fires. They play an…”
Get full text

Dissemination of forest health research information in the Rocky Mountains by Jacobi, William R, Crump, Amanda, Lundquist, John E

“…An important objective of forest health research is that it is applicable to and used by end users. A survey, interviews, and two case studies determined how…”
Get full text

Interactions between white pine blister rust, bark beetles, and climate over time indicate vulnerabilities to limber pine health by Burns, Kelly S., Tinkham, Wade T., Leddy, K. A., Schoettle, Anna W., Jacobi, William R., Stewart, Jane E.

“…Introduction Limber pine is a keystone species in the Rocky Mountains that grows on harsh, high elevation sites where few other tree species can. Recent…”
Get full text