Treesearch
Displaying 21,591 - 21,600 of 65,202 Publications- The invasion of Tree-of-Heaven (Ailanthus altissima) has been documented in disturbed landscapes leading to biodiversity loss and degradation of ecosystem function. Ailanthus interferes with the restoration of native species by its aggressive growth habit, alteration of nutrient cycles, and allelopathic chemical production. Recent studies suggest that allelopathy has a negative effect on the growth of red oak (Quercus rubra), possibly by interfering with the symbiosis of beneficial ectomycorrhizal fungi (ECM). This fungal symbiont is essential for healthy tree growth and the unavailability...AuthorsJenise M. Bauman, Caitlin Byrne, Shivanand HiremathSourceJournal American Society of Mining and Reclamation. 2(1): 1-16.Year2013
- Climate change may alter the distribution and activity of native and alien pathogens that infect trees and, in severe cases, cause tree death. In this study, potential future changes in climate suitability are investigated for three forest pathogens that occur in western North America: the native Arceuthobium tsugense subsp tsugense, hemlock dwarf mistletoe, and two alien invasive species, Dothistroma septosporum, the cause of red band needle blight or Dothistroma needle blight, and Phytophthora ramorum, the cause of sudden oak death or ramorum blight. Specifically, the software CLIMEX is...AuthorsRobert C. VenetteKeywordsSourceNeoBiota. 18: 131-150.Year2013
- We have been planting blight resistant American chestnut seedlings on reclaimed coal mined areas in Southeastern Ohio, which was once within the natural range of the American chestnut. Towards the goal of restoring the American chestnut, we are testing suitable sites that can aid survival, growth and establishment of planted seedlings pre-inoculated with ectomycorrhizal fungi. Prior to the arrival of the chestnut blight fungus, pathogens of the genus Phytophthora were introduced in the USA that were responsible for the "ink disease" or "root-rot" resulting in wide-spread death of chestnut...AuthorsShivanand Hiremath, Kirsten Lehtoma, Jenise M. BaumanSourceJournal American Society of Mining and Reclamation. 2(1): 68-79.Year2013
- We artificially selected for increased freeze tolerance in the invasive light brown apple moth. Our results suggest that, by not accounting for adaptation to cold, current models of potential geographic distributions could underestimate the areas at risk of exposure to this species.AuthorsAmy C. Morey, Robert C. Venette, William D. HutchisonSourceNeoBiota. 18:151-156.Year2013
- This talk provides a population and landscape genetic overview of fishers in Idaho and Montana. We start by discussing some of our initial findings using mitochondrial DNA (Vinkey et al. 2006, Schwartz 2007, Knaus et al. 2011). On balance these results demonstrate the uniqueness of a native haplotype that persisted in the Bitterroot-Selway Ecosystem. They also show the mixing of this native type with reintroduced individuals from British Columbia and the Midwest United States. Subsequently, we examine the genetic substructure of fishers throughout the Rocky Mountains using a panel of...AuthorsMichael K. Schwartz, Joel Saunder, Kristine L. Pilgrim, Ray Vinkey, Michael K. Lucid, Sean A. Parks, Nathan AlbrechtKeywordsSourceIn: 43rd Annual Meeting of the Idaho Chapter of The Wildlife Society; 11-14 March 2013; Coeur d'Alene, Idaho. Idaho Chapter of The Wildlife Society. p. 33. Online: http://www.ictws.org/2013AnnualMeetingFinalProgram.pdfYear2013
- In this talk we review the recent fisher research and monitoring efforts that have occurred throughout Idaho and Montana in past 2 decades. We begin this talk with a summary of the habitat relationship work that has examined fisher habitat use at multiple scales. These have largely been conducted using radio and satellite telemetry, although a new, joint effort to use GPS tags on fisher to understand their habitat use in multiple-use, xeric stands is underway. Next we discuss our progress in the arena of molecular genetics and genomics. We note the progress that has been made in the realms...AuthorsMichael K. Schwartz, J. SauderKeywordsSourceIn: 43rd Annual Meeting of the Idaho Chapter of The Wildlife Society; 11-14 March 2013; Coeur d'Alene, Idaho. Idaho Chapter of The Wildlife Society. p. 33. Online: http://www.ictws.org/2013AnnualMeetingFinalProgram.pdfYear2013
- The fisher (Pekania pennanti; formerly known as Martes pennanti) is a North American endemic mustelid with a geographic distribution that spans much of the boreal forests of North America. In the Northern Rocky Mountain (NRM) fishers have been the focus of Endangered Species Act (ESA) listing decisions. Habitat studies of West Coast fishers in California have consistently identified late-successional forests as important, providing direct implications for forest management and fisher conservation. In the NRM range very little is known about the habitat selection patterns of fishers...AuthorsMichael K. Schwartz, Nicholas J. DeCesare, Benjamin S. Jimenez, Jeffrey P. Copeland, Wayne E. MelquistKeywordsSourceForest Ecology and Management. 305: 103-111.Year2013
- Molecular phylogenies using 1–4 gene regions and information on ecology, morphology and pigment chemistry were used in a partial revision of the agaric family Hygrophoraceae. The phylogenetically supported genera we recognize here in the Hygrophoraceae based on these and previous analyses are: Acantholichen, Ampulloclitocybe, Arrhenia, Cantharellula, Cantharocybe, Chromosera, Chrysomphalina, Cora, Corella, Cuphophyllus, Cyphellostereum, Dictyonema, Eonema, Gliophorus, Haasiella, Humidicutis, Hygroaster, Hygrocybe, Hygrophorus, Lichenomphalia, Neohygrocybe, Porpolomopsis and Pseudoarmillarie...AuthorsD. Jean Lodge, Mahajabeen Padamsee, P. Brandon Matheny, M. Catherine Aime, Sharon A. Cantrell, David Boertmann, Alexander Kovalenko, Alfredo Vizzini, Bryn T.M. Dentinger, Paul M. Kirk, A. Martin Ainsworth, Jean-Marc Moncalvo, Rytas Vilgalys, Ellen Larsson, Robert Lucking, Gareth W. Griffith, Matthew E. Smith, Lorilei L. Norvell, Dennis E. Desjardin, Scott A. Redhead, Clark L. Ovrebo, Edgar B. Lickey, Enrico Ercole, Karen W. Hughes, Regis Courtecuisse, Anthony Young, Manfred Binder, Andrew M. Minnis, Daniel Lindner, Beatriz Ortiz-Santana, John Haight, Thomas Laessoe, Timothy J. Baroni, Jozsef Geml, Tsutomu HattoriKeywordsSourceFungal DiversityYear2013
- Palmer's chipmunk (Neotamias palmeri) is a medium-sized chipmunk whose range is limited to the higher-elevation areas of the Spring Mountain Range, Nevada. A second chipmunk species, the Panamint chipmunk (Neotamias panamintinus), is more broadly distributed and lives in lower-elevation, primarily pinyon-juniper (Pinus monophylla-Juniperus osteosperma) habitat types. Panamint chipmunks are not closely related to Palmer's, but field identification of the 2 species is unreliable. Palmer's chipmunk is a species of concern in the state of Nevada and is listed by the International Union for...AuthorsKevin S. McKelvey, Jennifer E. Ramirez, Kristine L. Pilgrim, Samuel A. Cushman, Michael K. SchwartzKeywordsSourceThe Western North American Naturalist. 73(2): 198-210.Year2013
- Exotic weeds have invaded vast stretches of forest and rangeland, yet as highlighted by the previous review by Runyon and others in this issue, little is known about the factors driving the success of these invaders or how factors such as climate change may alter outcomes. Spotted knapweed (Centaurea stoebe) is one of the worst weeds in the Western U.S., infesting over seven million acres. Even so, knapweed populations declined in Western Montana in the early 2000s, coincident with severe drought. Furthermore, the biocontrol agent, the knapweed root weevil (Cyphocleonus achates), was...AuthorsYvette K. Ortega, Dean E. PearsonSourceIn: Fornwalt, Paula. Invasive Species Science Update (No. 6). Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 4.Year2013