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Displaying 7,061 - 7,070 of 64,641 Publications- Non-native invasive plants often outcompete native species under high resource availability. Restoration techniques that lower resources may, therefore, create favorable conditions for resource conservative native species over resource exploitative invasive species. Research on this topic has focused on temperate grass and forb-dominated ecosystems and has rarely been tested for woody species or tropical vegetation. We evaluated growth, resource-use efficiency (RUE), ecophysiology, and competition (i.e. a relative interaction index based on biomass) of four woody native and two dominant...AuthorsAmanda E. Knauf, Creighton M. Litton, Rebecca J. Cole, Jed P. Sparks, Christian P. Giardina, Kenneth G. Gerow, Melanie Quiñones‐SantiagoKeywordsSourceRestoration Ecology. 29(5): e13374Year2021
- Reducing soil nutrient availability has been proposed as a strategy to favor native vs. non-native invasive plant species and represents a potential alternative to traditional manual removal or chemical control methods. We implemented a field experiment in invaded dry and wet montane Hawaiian ecosystems to test responses of soil and dominant plant species to three soil nutrient treatments (Control = no nutrient manipulation; Carbon = C substrate added to reduce nutrients; Fertilizer = fertilizer added to increase nutrients) and two non-native plant treatments (Weeds removed; Weeds present)...AuthorsRebecca J. Cole, Fiona M. Soper, Creighton M. Litton, Amanda E. Knauf, Kimberlee Sparks, Kenneth G. Gerow, Christian P. Giardina, Jed P. SparksKeywordsSourceRestoration Ecology. 29(5): e13390.Year2021
- Earthworms are an important soil taxon as ecosystem engineers, providing a variety of crucial ecosystem functions and services. Little is known about their diversity and distribution at large spatial scales, despite the availability of considerable amounts of local-scale data. Earthworm diversity data, obtained from the primary literature or provided directly by authors, were collated with information on site locations, including coordinates, habitat cover, and soil properties. Datasets were required, at a minimum, to include abundance or biomass of earthworms at a site. Where possible,...AuthorsSandy M. Smith, Michael Steinwandter, Katalin Szlavecz, José Antonio Talavera, Dolores Trigo, Jiro Tsukamoto, Sheila Uribe-López, Anne W. de Valença, Iñigo Virto, Adrian A. Wackett, Matthew W. Warren, Emily R. Webster, Nathaniel H. Wehr, Joann K. Whalen, Michael B. Wironen, Volkmar Wolters, Pengfei Wu, Irina V Zenkova, Weixin Zhang, Erin K. Cameron, Nico Eisenhauer, Helen R. P. Phillips, Elizabeth M. Bach, Marie L. C. Bartz, Joanne M. Bennett, Rémy Beugnon, Maria J. I Briones, George G. Brown, Olga Ferlian, Konstantin B. Gongalsky, Carlos A. Guerra, Birgitta König-Ries, Julia J. Krebs, Alberto Orgiazzi, Kelly S. Ramirez, David J. Russell, Benjamin Schwarz, Diana H. Wall, Ulrich Brose, Thibaud Decaëns, Patrick Lavelle, Michel Loreau, Jérôme Mathieu, Christian Mulder, Wim H. van der Putten, Matthias C. Rillig, Madhav P. Thakur, Franciska T. de Vries, David A. Wardle, Christian Ammer, Sabine Ammer, Miwa Arai, Fredrick O. Ayuke, Geoff H. Baker, Dilmar Baretta, Dietmar Barkusky, Robin Beauséjour, Jose C. Bedano, Klaus Birkhofer, Eric Blanchart, Bernd Blossey, Thomas Bolger, Robert L. Bradley, Michel Brossard, James C. Burtis, Yvan Capowiez, Timothy R. Cavagnaro, Amy Choi, Julia Clause, Daniel Cluzeau, Anja Coors, Felicity V Crotty, Jasmine M. Crumsey, Andrea Dávalos, Darío J. Díaz Cosín, Annise M. Dobson, Anahí Domínguez, Andrés Esteban Duhour, Nick van Eekeren, Christoph Emmerling, Liliana B. Falco, Rosa Fernández, Steven J. Fonte, Carlos Fragoso, André L. C. Franco, Abegail Fusilero, Anna P. Geraskina, Shaieste Gholami, Grizelle Gonzalez, Michael J. Gundale, Mónica Gutiérrez López, Branimir K. Hackenberger, Davorka K. Hackenberger, Luis M. Hernández, Jeff R. Hirth, Takuo Hishi, Andrew R. Holdsworth, Martin Holmstrup, Kristine N. Hopfensperger, Esperanza Huerta Lwanga, Veikko Huhta, Tunsisa T. Hurisso, Basil V Iannone, Madalina Iordache, Ulrich Irmler, Mari Ivask, Juan B. Jesús, Jodi L. Johnson-Maynard, Monika Joschko, Nobuhiro Kaneko, Radoslava Kanianska, Aidan M. Keith, Maria L. Kernecker, Armand W. Koné, Yahya Kooch, Sanna T. Kukkonen, H. Lalthanzara, Daniel R. Lammel, Iurii M. Lebedev, Edith Le Cadre, Noa K. Lincoln, Danilo López-Hernández, Scott R. Loss, Raphael Marichal, Radim Matula, Yukio Minamiya, Jan Hendrik Moos, Gerardo Moreno, Alejandro Morón-Ríos, Hasegawa Motohiro, Bart Muys, Johan Neirynck, Lindsey Norgrove, Marta Novo, Visa Nuutinen, Victoria Nuzzo, P. Mujeeb Rahman, Johan Pansu, Shishir Paudel, Guénola Pérès, Lorenzo Pérez-Camacho, Jean-François Ponge, Jörg Prietzel, Irina B. Rapoport, Muhammad Imtiaz Rashid, Salvador Rebollo, Miguel Á. Rodríguez, Alexander M. Roth, Guillaume X. Rousseau, Anna Rozen, Ehsan Sayad, Loes van Schaik, Bryant Scharenbroch, Michael Schirrmann, Olaf Schmidt, Boris Schröder, Julia Seeber, Maxim P. Shashkov, Jaswinder SinghSourceScientific DataYear2021
- This study analyzes multiyear data recorded by 21 stations along an elevation gradient (0–1045 m a.s.l.) in the Luquillo Mountains on the rainfall and the rainwater chemistry. The totalionic concentration and the rainwater volume exhibited an inverse exponential relationship, withthe correlation coefficients ranging from –0.66 to –0.90. Furthermore, the rainfall tended toincrease with the elevation, although a few stations, owing to their geographical location and theirexposure to the prevailing winds, departed from this trend. The ionic composition also displayedclear seasonality:...AuthorsElvis Torres-Delgado, Grizelle Gonzalez, Ernesto Medina, María M. RiveraKeywordsSourceAerosol and Air Quality ResearchYear2021
- Bedrock weathering regulates nutrient mobilization, water storage, and soil production. Relative to the mobile soil layer, little is known about the relationship between topography and bedrock weathering. Here, we identify a common pattern of weathering and water storage across a sequence of three ridges and valleys in the sedimentary Great Valley Sequence in Northern California that share a tectonic and climate history. Deep drilling, downhole logging, and characterization of chemistry and porosity reveal two weathering fronts. The shallower front is ∼7 m deep at the ridge of all three...AuthorsMichelle A. Pedrazas, W. Jesse Hahm, Mong‐Han Huang, David Dralle, Mariel D. Nelson, Rachel E. Breunig, Kristen E. Fauria, Alexander B. Bryk, William E. Dietrich, Daniella M. RempeKeywordsSourceJournal of Geophysical Research: Earth Surface. 126(4): 217Year2021
- Mycorrhizae alter global patterns of CO2fertilization, carbon storage, and elemental cycling, yet knowledge of their global distributions is currently limited by the availability of forest inventory data. Here, we show that maps of tree-mycorrhizal associations (hereafter “mycorrhizal maps”) can be improved by the novel technology of imaging spectroscopy because mycorrhizal signatures propagate up from plant roots to impact forest canopy chemistry. We analyzed measurements from 143 airborne imaging spectroscopy surveys over 112,975 individual trees collected across 13 years. Results show...AuthorsChristian P. Giardina, Gregory S. Gilbert, Faith Imran‐Narahari, Creighton M. Litton, James A. Lutz, Malcolm P. North, David A. Orwig, Rebecca Ostertag, Lawren Sack, Richard P. Phillips, Daniel Sousa, Joshua B. Fisher, Fernando Romero Galvan, Ryan P. Pavlick, Susan Cordell, Thomas W. GiambellucaKeywordsSourceGeophysical Research Letters. 48(10): e2021GL092764Year2021
- Transdisciplinary research is a promising approach to address sustainability challenges arising from global environmental change, as it is characterized by an iterative process that brings together actors from multiple academic fields and diverse sectors of society to engage in mutual learning with the intent to co-produce new knowledge. We present a conceptual model to guide the implementation of environmental transdisciplinary work, which we consider a “science with society” (SWS) approach, providing suggested activities to conduct throughout a seven-step process. We used a survey with...AuthorsCara Steger, Julia A. Klein, Robin S. Reid, Sandra Lavorel, Catherine Tucker, Kelly A. Hopping, Rob Marchant, Tara Teel, Aida Cuni-Sanchez, Tsechoe Dorji, Greg Greenwood, Robert Huber, Karim-Aly Kassam, David Kreuer, Anne Nolin, Aaron Russell, Julia L. Sharp, Mateja Šmid Hribar, Jessica P.R. Thorn, Gordon Grant, Mohammed Mahdi, Martha Moreno, Daniel WaiswaKeywordsSourceGlobal Environmental Change. 68(10): 102240.Year2021
- Brown root rot (caused by Phellinus noxius) and myrtle rust (caused by Austropuccinia psidii) are natural disturbances in their native tropical and subtropical forest ecosystems. A tree infected with either fungal pathogen becomes unhealthy and likely dies, sometimes within 3 months. These pathogens are threatening forest ecosystems around the world as they spread through international trade or other means, such as by wind or through the soil. Climate change also is creating environmental conditions that will allow these pathogens to survive in novel forest ecosystems where they haven’t...AuthorsAndrea Watts, Mee-Sook Kim, Ned B. Klopfenstein, Jane StewartKeywordsSourceScience Findings 239. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 p.Year2021
- The first time I read about lab-grown meat—about seven years ago—I laughed and thought, "That’s ridiculous!" The cost was astronomical: $280,000 for a single hamburger patty! How would it be scaled up from a petri dish in a lab to commercial production? And who'd want to eat this reportedly unpalatable product? Fast forward to today, and the cost of lab-grown meat has dropped dramatically, quality and taste have improved rapidly, and it's being served in restaurants for the first time (Phys.Org 2020). Many start-ups are working to commercialize "slaughter-free" meat, which could someday...AuthorsDavid N. N. BengstonKeywordsSourceThe Forestry Source. 26(3): 10, 17.Year2021
- Invasive forest plants are a growing concern because of their perceived and actual negative ecological, economic, and social impacts. To effectively manage invasive plants in forest ecosystems, it is paramount to understand the management decisions made by family forest owners (FFOs), who collectively own 36% of forestlands in the United States. We contribute to the growing literature on invasive plant management and the factors that influence FFOs' likelihood to manage invasive plants on their property by incorporating protection motivation theory (PMT; Rogers 1975). Protection Motivation...AuthorsMysha Clarke, Zhao Ma, Stephanie Snyder, Erin P. HennesKeywordsSourceJournal of Environmental ManagementYear2021