Treesearch
Displaying 12,011 - 12,020 of 65,182 Publications- Fomitiporella has traditionally been delimited based on the gross morphology of the basidiomes, hyphal structure and basdiospores. Recently, phylogenetic studies supported the incorporation of an extensive number of species within the genus. Although most of its species are nested in the 'Phellinotus clade' (Hymenochaetaceae, Basidiomycota), genera such as Arambarria, Inocutis and Phellinotus were not included in previous analysis. To further our understanding of the genus, new sequences from 28S and ITS nuc rDNA genes were jointly analysed with a large selection of taxa in the 'Phellinotus...AuthorsMaría Belén Pildain, Rodrigo Reinoso Cendoya, Beatriz Ortiz-Santana, José Becerra, Mario RajchenbergKeywordsSourceMycoKeysYear2018
- The Hungry Bob fuels reduction project was part of a 12-site National Fire and Fire Surrogate (FFS) network of experiments conducted across the United States from the late 1990s through the early 2000s to determine the regional differences in applying alternative fuel-reduction treatments to forests. The Hungry Bob project focused on restoration treatments applied in low elevation, dry second-growth ponderosa pine (Pinus ponderosa subsp. ponderosa (Douglas ex C. Lawson) and Douglas-fir (Pseudotsuga menziesii subsp. glauca (Beissn.) Franco forests of northeastern Oregon. Treatments included...AuthorsGeorge L. McCaskillSourceForests. Forests. 10(1):15.Year2018
- Regeneration performance of planted grand fir (Abies grandis [Dougl. ex D. Don] Lindl.), coast Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii), western redcedar (Thuja plicata Donn ex D. Don), and western hemlock (Tsuga heterophylla [Raf.] Sarg.) seedlings was studied for 3 years within artificial canopy gaps in a mature Douglas-fir forest near Tacoma, WA. Third-year survival of Douglas-fir and western redcedar did not vary with gap size, but peak survival of grand fir and western hemlock occurred at gap sizes of 0.13 and 0.14 ha (0.32 and 0.35 ac), respectively. Peak...AuthorsTimothy B. Harrington, Warren DevineKeywordsSourceTree Planters' Notes. 61(2): 35-46.Year2018
- To examine the effects of taproot deformity on stem curvature, 90 full-sibling loblolly pine (Pinus taeda L.) seedlings (30 seedlings each from 3 families) were planted with 5 root/stem form treatments: straight taproot (control treatment), straight taproot with underground obstruction, taproot planted with J-root form, taproot planted at a 45-degree angle, and a straight taproot with the stem pulled to a 45-degree angle. Significant treatment differences (P ≤ 0.05) were found in year 1 for stem diameter and frequency of interwhorl oscillations, and all variables differed significantly...AuthorsMichael S. Murphy, Laurence R. Schimleck, Timothy B. Harrington, Richard F. DanielsKeywordsSourceTree Planters' Notes. 61(2): 55-64.Year2018
- Coniophoropsis bambusicola sp. nov. is described and illustrated from southern Vietnam based on morphological and molecular evidence. It is the second species in the genus, and differs from the type, C. obscura, by having much smaller basidiospores measuring 5.5–7 × 4–5 μm and growing on the culms of dead bamboo. The phylogenetic analyses based on a combined dataset of nuc rDNA ITS1-5.8S-ITS2 (ITS) and nuc 28S rDNA (28S) sequences of Boletales show that Coniophoropsis bambusicola is closely related to Coniophora.AuthorsYa-Nan Zhao, Shi-Liang Liu, Karen K. Nakasone, Shuang-Hui HeKeywordsSourcePhytotaxaYear2018
- The Midwest is home to over 60 million people, and its active economy represents 18% of the U.S. gross domestic product. The region is probably best known for agricultural production. Increases in growingseason temperature in the Midwest are projected to be the largest contributing factor to declines in the productivity of U.S. agriculture. Increases in humidity in spring through mid-century are expected to increase rainfall, which will increase the potential for soil erosion and further reduce planting-season workdays due to waterlogged soil. Forests are a defining characteristic of many...AuthorsJ. Angel, Chris Swanston, B.M. Boustead, K.C. Conlon, K.C. Hall, J.L. Jorns, K.E. Kunkel, M.C. Lemos, B. Lofgren, Todd A. Ontl, J. Posey, K. Stone, G. Takle, D. TodeySourceIn: Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, Volume II Reidmiller, D.R.; Avery, C.W.; Easterling, D.R.; Kunkel, K.E.; Lewis, K.L.M.; Maycock, T.K.; Stewart, B.C. U.S. Global Change Research Program, Washington, DC, USA: 872–940.Year2018
- Worldwide, native species increasingly contend with the interacting stressors of habitat fragmentation and invasive species, yet their combined effects have rarely been examined. Direct negative effects of invasive omnivores are well documented, but the indirect effects of resource competition or those caused by predator avoidance are unknown. Here we isolated and examined the independent and interactive effects of invasive omnivorous Black rats (Rattus rattus) and forest fragment size on the interactions between avian predators and their arthropod prey. Our study examines whether invasive...AuthorsErin E. Wilson Rankin, Jessie L. Knowlton, Daniel S. Gruner, David J. Flaspohler, Christian P. Giardina, Devin Leopold, Anna Buckardt, William C. Pitt, Tadashi FukamiKeywordsSourcePLOS ONE. 13(9): e0202869Year2018
- Background This data paper provides a description of OpenNahele, the open Hawaiian forest plot database. OpenNahele includes 530 forest plots across the Hawaiian archipelago containing 43,590 individuals of 185 native and alien tree, shrub and tree fern species across six islands. We include estimates of maximum plant size (D950.1 and Dmax3) for 58 woody plant species, a key functional trait associated with dispersal distance and competition for light. OpenNahele can serve as a platform to test key ecological, evolutionary and conservation questions in a hotspot archipelago. New information...AuthorsDylan Craven, Tiffany Knight, Kasey Barton, Lalasia Bialic-Murphy, Susan Cordell, Christian P. Giardina, Thomas Gillespie, Rebecca Ostertag, Lawren Sack, Jonathan ChaseKeywordsSourceBiodiversity Data Journal. 6: 0186Year2018
- Survival rates of large trees determine forest biomass dynamics. Survival rates of small trees have been linked to mechanisms that maintain biodiversity across tropical forests. How species survival rates change with size offers insight into the links between biodiversity and ecosystem function across tropical forests. We tested patterns of size-dependent tree survival across the tropics using data from 1,781 species and over 2 million individuals to assess whether tropical forests can be characterized by size-dependent life-history survival strategies. We found that species were classifiab...AuthorsDaniel J. Johnson, Jessica Needham, Chonggang Xu, Elias C. Massoud, Stuart J. Davies, Kristina J. Anderson-Teixeira, Sarayudh Bunyavejchewin, Jeffery Q. Chambers, Chia-Hao Chang-Yang, Jyh-Min Chiang, George B. Chuyong, Richard Condit, Susan Cordell, Christine Fletcher, Christian P. Giardina, Thomas W. Giambelluca, Nimal Gunatilleke, Savitri Gunatilleke, Chang-Fu Hsieh, Stephen Hubbell, Faith Inman-Narahari, Abdul Rahman Kassim, Masatoshi Katabuchi, David Kenfack, Creighton M. Litton, Shawn Lum, Mohizah Mohamad, Musalmah Nasardin, Perry S. Ong, Rebecca Ostertag, Lawren Sack, Nathan G. Swenson, I Fang Sun, Sylvester Tan, Duncan W. Thomas, Jill Thompson, Maria Natalia Umaña, Maria Uriarte, Renato Valencia, Sandra Yap, Jess Zimmerman, Nate G. McDowell, Sean M. McMahonSourceNature Ecology & EvolutionYear2018
- The southern Appalachian Mountains have experienced rapid human population growth rates since the 1980s. Land used practices are shifting from rural to residential. The majority of development has been low density, and is often near biologically diverse areas such as National Forests and National Parks. The long-term effects of urbanization in the southeastern Appalachian Mountains are not clearly understood and even less is known with respect to stream salamander response to urbanization. In order to determine the temporal influence of exurban housing on southern Appalachian streams we...AuthorsNathan Weaver, Kyle BarrettKeywordsSourceUrban EcosystemsYear2018